Which cell structure receives proteins from the endoplasmic reticulum and
temporarily modifies or stores them?
A. Nucleus
B. Golgi apparatus
C. Ribosome
D. Vacuole
Answers
I'm sure of this I learned it in 7th grade
Related Questions
which reproduction uses non reproductive plants of a plant to produce new plants
Answers
Answer:
Vegetative propagation
Explanation:
Vegetative propagation does not require seeds or spores. Instead, offspring grow from a part of the parent plant.
why are green plants known as producer?
pls tell answer in short :)
Answers
what is the best example of chemical work?
Answers
Lactate dehydrogenase is the examples of chemical work, this helps in conversion of pyruvate ( which is the end product of glycolysis) into lactate, with the reduction of NAD+ to NADH which can participate in other chemical reactions to create energy, it is an enzyme of the anaerobic metabolic pathway.
we can take example of lactic acid fermentation, where lactic acid is produced in the muscles when there is exertion in our muscles.
so, when we exercise there is utilization of ATP, which leads to demand of oxygen and accumulation of NADH. The lactic acid is produced is the waste energy in the process.
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what do i put for "define energy" in my biology class..?
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Answer: is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.
Explanation:
Answer: see below
Explanation: Scientists define energy as the ability to do work. Modern civilization is possible because people have learned how to change energy from one form to another
help/.........................
Answers
Answer:
I would say B because they are trying to see which one the prefer
true or false, postsynaptic cells, in turn, add receptors from their membranes to make it less difficult to stimulate the cell and cause an action potential
Answers
The given statement "postsynaptic cells, in turn, add receptors from their membranes to make it less difficult to stimulate the cell and cause an action potential" is False because Postsynaptic cells do not add receptors from their membranes to make it less difficult to stimulate the cell and cause an action potential. In fact, the process is usually the opposite.
Postsynaptic cells, which receive signals from presynaptic cells at chemical synapses, contain receptors on their membranes that specifically bind with neurotransmitter molecules released by the presynaptic cell. These receptors are proteins that are already present in the postsynaptic cell membrane and are not added or removed based on the difficulty of stimulating the cell.
When neurotransmitters bind to their specific receptors on the postsynaptic cell, it can either excite or inhibit the postsynaptic cell's activity. Excitatory neurotransmitters can depolarize the postsynaptic membrane, making it more likely to generate an action potential, while inhibitory neurotransmitters can hyperpolarize the membrane, making it less likely to generate an action potential.
The number and sensitivity of receptors on the postsynaptic cell membrane can be dynamically regulated through processes like long-term potentiation or long-term depression, which can affect the strength of synaptic connections over time. However, these processes are not directly related to the difficulty of stimulating the cell but rather to the strength and efficacy of synaptic transmission.
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the ____________ focuses on foods that are low in saturated fats and high in fiber, which can help to lower the risk of cardiovascular disease.
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The Mediterranean diet focuses on foods that are low in saturated fats and high in fiber, which can help to lower the risk of cardiovascular disease.
The Mediterranean diet is a dietary pattern that is primarily based on the traditional eating habits of countries bordering the Mediterranean Sea, such as Greece, Italy, and Spain.
It emphasizes consuming a variety of nutrient-rich foods, particularly those that are low in saturated fats and high in fiber.
The Mediterranean diet places a strong emphasis on fruits, vegetables, whole grains, legumes, nuts, and seeds. These foods are abundant in fiber, vitamins, minerals, and antioxidants, which have been associated with a reduced risk of cardiovascular disease.
Additionally, the Mediterranean diet promotes the consumption of lean sources of protein, such as fish and poultry, while limiting the intake of red meat. Healthy fats, such as olive oil, are favored over saturated fats found in butter and other animal-based fats.
The combination of these dietary components in the Mediterranean diet contributes to its potential benefits for cardiovascular health.
Numerous studies have shown that adhering to the Mediterranean diet can help lower the risk of heart disease, stroke, and other cardiovascular conditions.
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3. How might we eradicate the species? Have any methods been successful at reducing their spread?
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There number of methods like habitat loss, human intervention etc that threaten species.
The species are organisms that inhabit the earth along with humans. But there is increase in the destruction of species from the earth. Various factors are contributing to this phenomenon.
Habitat loss: Generally there is habitat destruction that lead to easy eradication of species as when there is not a suitable place for a organism to stay it will die.
Similarly invasive species incorporation can help to eradicate the native species from that land.
Pollution can make the more susceptible or sensitive species to die away. Over hunting and over exploitation can also be responsible for eradication of species from earth.
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Why does quadrat sampling provide an accurate estimate of a population size within a defined area? Explain your reasoning.
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Answer: it's better to do a small area at a time other than doing large areas where it will be hard to find specific species throughout the huge amount of land
A quadrat is a small, designated portion of the entire area to be sampled that is marked off so that the population within it can be counted by hand or by a similar method, like by taking an aerial photograph.
Quadrat sampling provide an accurate estimate of a population size within a defined area:
Quadrats allow researchers to study plant and animal populations spread out over large areas. They are inexpensive, relatively easy to design and adaptable for studying unevenly distributed populations.
Quadrats work well for observing changes to whole populations over time, including distribution patterns, nesting and overall health.
What is Quadrat Sampling?Quadrat sampling is a classic tool for the study of ecology, especially biodiversity. It is an important method by which organisms in a certain proportion (sample) of the habitat are counted directly.
It is used to estimate population abundance (number), density, frequency and distributions.
A quadrat is a small, designated portion of the entire area to be sampled that is marked off so that the population within it can be counted by hand or by a similar method, like by taking an aerial photograph.
Quadrat sampling methods are time-tested sampling techniques that are best suited for areas where access to a habitat is relatively easy.
Advantages:
- It sampling is easy to use and is inexpensive.
- It is suitable for studying plants, slow-moving animals and faster-moving animals with a small range.
- It requires the researcher to perform the work in the field and, without care.
- It measures abundance and needed cheap equipment.
Disadvantages:
- There exists biasness in favor of slow moving taxa.
- Collect only taxa that are present in the sampling time and not buried too deeper in sediment.
- It is a low estimate of taxonomic richness and assemblage composition.
- It is also a low detectability of among-site differences in assemblage composition.
- Some animals may experience harm if the scientist collects the population within the quadrat rather than studying it in the field.
Applications:
1. Quadrat sampling is broadly used in plant studies.
2. It is applied in ecology especially in biodiversity.
3. It is used to find the taxonomic richness of slow-moving taxa in a certain area.
4. It is the best measure of finding taxonomic richness in costal area.
5. It can be also used to evaluate the impact of weathering, trampling or erosion in an ecosystem or at a cliff or rock face.
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Vocabulary Matching
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Ecosystem, specialist species, niche, habitat, nonnative species, generalist species, extinction, Keystone species, indicator species, natural selection
An organism's home is known as its habitat, and its function in its environment is known as its niche. While niche focuses on how the creature effects the environment, habitat focuses on how the environment impacts the organism.
What about species?A group of things that share the same kind and name: kind. A group of related organisms with the capacity to bear viable offspring that falls below the genus level and is designated by a two-part scientific name. A group of plants or animals that may reproduce together and have similar characteristics is referred to as a species.A collection of people with similar traits who can interbreed to create fruitful offspring is how species are frequently defined. Alpaca - Vicugna pacos are two examples. A group of creatures that can naturally reproduce with one another and generate viable progeny is sometimes referred to as a species. However, classifying a species can be challenging and even contentious. The billions of people on the planet now are all members of the same species, Homo sapiens. Human beings differ among themselves, just like other species do, in terms of everything from size and shape to skin tone and eye color. The two-part name that Linnaeus invented is still used today and is currently presented in either Latin or Greek. It was originally used for plants and then later for animals. The first identifies the larger group, known as a genus, to which the plant belongs, while the second refers to the plant itself as a species.Learn more about species here:
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What is some direct evidence scientists used to determine that the Earth has liquid layers beneath the crust?
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What is a limitation of the bell jar model when modelling ventilation?
Answers
One limitation of the bell jar model when modeling ventilation is its oversimplified representation of real-world conditions. The bell jar model assumes a uniform and consistent distribution of airflow within the enclosed space, disregarding factors such as complex air currents, turbulence, and variations in temperature and humidity. In reality, ventilation dynamics are influenced by a range of factors, including room geometry, furniture placement, and occupancy patterns, which cannot be accurately captured by the simplistic bell jar model. This oversimplification may lead to inaccurate predictions or underestimation of ventilation rates in real-life scenarios.
Another limitation is the lack of consideration for external influences on ventilation. The bell jar model typically assumes a closed system, neglecting the impact of external factors such as wind, temperature differentials, and outdoor air quality. In real environments, these external influences play a crucial role in ventilation dynamics. Wind direction and speed, for instance, can significantly affect the inflow and outflow of air in a building. Temperature differences between indoor and outdoor environments can drive natural ventilation processes. Ignoring these external factors in the bell jar model may result in unrealistic estimations of ventilation rates and limit its applicability to real-world scenarios.
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A ___________are organisms whose bodies change to the environment.
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Ectotherms are the organism whose body changes according to the environment.
Ectotherms are also as cold-blooded organisms. These are the organisms whose internal environment fluctuates according to their external environment. Hence they do not invest any energy in regulating their internal environment. Th example of such organisms are: fishes, amphibians, reptiles, and invertebrates.
Environment can be defined as the conditions where an organism survives and interacts with its surroundings. An environment is composed of all the living and the non-living things. The environment has a very high influence upon the habits and behavior of organisms. The land, air, temperature are all components of environment.
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Why is cell division a necessary part of maintaining multicellular life? Help asap giving brainliest!!!
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Answer:
In multicellular animals, mitosis is required to maintain a consistent number of chromosomes in all body cells because it produces diploid daughter cells with genetic makeup that is typically identical to that of the parent cell. Mitosos is responsible for the multicellular organisms' growth. As a cell grows, the ratio between the nucleus and cytoplasm is distributed. Therefore, restoring the nucleo-cytoplasamic ratio is crucial for cell division. Cell repair is a very important mitosis-related function. Plants grow continuously throughout their lives as a result of mitotic divisions in the meristametic tissues, the apical and lateral Meristems.
Explanation:
Use the base pair rule to complete the opposite side of the DNA strand: Template Strand - A C A G A A T T C T A
Answers
The opposite side of the DNA strand would be "T G T C T T A A G A T" according to the base pair rule.
The base pair rule in DNA, also known as Chargaff's rule, states that in a double-stranded DNA molecule, the bases adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G). This means that the two strands of the DNA molecule are held together by hydrogen bonds between the complementary base pairs, with A-T forming two hydrogen bonds, and C-G forming three hydrogen bonds.
Using the base pair rule in DNA, the complementary bases are;
A (adenine) pairs with T (thymine)
C (cytosine) pairs with G (guanine)
Based on the given template strand "A C A G A A T T C T A", the complementary bases for the opposite side (the newly synthesized DNA strand) would be;
Template Strand; A C A G A A T T C T A
Complementary Strand; T G T C T T A A G A T
So the opposite side of the DNA strand, also known as the complementary strand, would be "T G T C T T A A G A T" according to the base pair rule.
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why do some researchers maintain that the limbs of all animals are homologous?
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Some researchers maintain that the limbs of all animals are homologous because they believe that the basic skeletal structure and limb layout of vertebrates have been conserved over time.
This means that even though different species may have evolved different specialized functions for their limbs, such as wings for birds and flippers for whales, the underlying structure of their limbs is still the same.Therefore, researchers argue that the common ancestor of all vertebrates had the same basic limb structure, which has been modified over time to give rise to the diversity of limb types seen today. This is supported by the fact that all vertebrates have the same basic bones in their limbs, including the humerus, radius, and ulna in the forelimbs, and the femur, tibia, and fibula in the hindlimbs. These bones are arranged in the same way, with joints that allow for flexion and extension. Additionally, the development of limbs in embryos follows a similar pattern across different species, further supporting the idea of homology.
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Where are the Buccinator and superior pharyngeal constrictor muscles attached to each other?
Answers
The buccinator muscle and superior pharyngeal constrictor muscle are attached to each other at the posterior pharyngeal wall. Together, these muscles work to aid in the process of swallowing.
The buccinator and superior pharyngeal constrictor muscles are not directly attached to each other, as they serve different functions and are located in different areas of the head and neck.
The buccinator muscle is found in the cheek and is a part of the facial muscles. It helps in moving food during chewing and assists in the act of blowing.
The buccinator muscle is a thin, flat muscle located in the cheek, while the superior pharyngeal constrictor muscle is one of the three pharyngeal muscles located in the pharynx.
The superior pharyngeal constrictor muscle is a pharyngeal muscle located in the neck. Its primary function is to help in the swallowing process by constricting the pharynx.
Although they are not directly attached, both muscles work together to facilitate the process of chewing and swallowing food.
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Match the cell type with its description. The main epidermal cell type. A. fibroblast The most common dermal cell type. B. dendritic cell (a.k.a. Langerhans cell) The cell type that contributes the primary pigment for our skin. C. Merkel cell A cell type that associates with a nerve ending to help us feel light touch. D. keratinocyte The cell type that is always breaking off pieces of itself to share with E. basal cell other cells. F. melanocyte * Squamous cell carcinoma is from an error in this cell type. This is the only epidermal cell type that is constantly dividing normally. This cell type provides some immunity and clean-up functions in the epidermis.
Answers
A. fibroblast is the main epidermal cell type.
B. dendritic cell (a.k.a. Langerhans cell) is the most common dermal cell type.
C. Merkel cell is the cell type that contributes the primary pigment for our skin.
D. keratinocyte is a cell type that associates with a nerve ending to help us feel light touch.
E. basal cell is the cell type that is always breaking off pieces of itself to share with other cells.
F. melanocyte is the cell type responsible for providing skin pigmentation.
A. Fibroblasts are not the main epidermal cell type. They are actually found in the dermis, where they produce extracellular matrix components like collagen and elastin.
B. Dendritic cells, also known as Langerhans cells, are immune cells found in the epidermis. They play a role in presenting antigens to other immune cells.
C. Merkel cells are specialized cells found in the epidermis that contribute to our sense of touch and are associated with nerve endings.
D. Keratinocytes are the main cell type of the epidermis. They produce the protein keratin, which gives the skin its protective and waterproof properties.
E. Basal cells, also known as basal keratinocytes, are located in the deepest layer of the epidermis and constantly divide to replenish the upper layers of the epidermis.
F. Melanocytes are responsible for producing the pigment melanin, which provides skin, hair, and eye color. Melanocytes are found in the epidermis and are responsible for protecting the skin from UV radiation.
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List differences of a human digestive system and a frogs digestive system
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The following are the differences of human and frog digestive systems:
1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.
2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.
3. Humans possess only a set of teeth while frogs possess two sets of teeth.
4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.
5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.
6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.
Onepage review on why understanding gas and vapors in a work setting is important and what we can do in our workplace to prevent accidents with gases and vapors.
Answers
Understanding gas and vapours in a work setting is incredibly important for workplace safety. Gas and vapours can contain noxious substances that, if exposed to, can lead to serious injury or health implications.
In order to prevent such accidents, employers must perform risk assessments in order to assess and identify any areas of risk and put in place control measures to limit them. If gas and vapours are used onsite, then suitable ventilation and extraction systems should be in place.
Employers should also ensure that their staff are aware of the potential risks associated with such substances and provide adequate training and instruction in how to work safely. Finally, employers should also check that any necessary personal protective equipment is provided and communications are in place to be able to notify relevant emergancy responders in case of an accident.
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scientific name of the queen conch
Answers
Answer:
Strombus gigas
Explanation:
Hope it helps
(Give a thank OR mark as brainliest if its the correct answer )
Answer: Strombus gigas
Explanation: It is a sea animal
all living cells maintain a polarized membrane, meaning that positive and negative ions are separated on either side of the membrane. what roles does this polarization play in function of neurons?
Answers
All living cells maintain a polarized membrane, meaning that positive and negative ions are separated on either side of the membrane.
This polarization plays a crucial role in the function of neurons, as it allows for the transmission of electrical signals, known as action potentials, along the length of the neuron.
The polarization of the membrane is maintained through the use of ion pumps, which actively move ions across the membrane to create a difference in charge between the inside and outside of the cell. This difference in charge is known as the membrane potential, and it is essential for the transmission of action potentials.
When a neuron is stimulated, ion channels open and allow ions to flow across the membrane, causing a change in the membrane potential. This change in potential travels along the length of the neuron, allowing for the transmission of information from one end of the cell to the other.
Overall, the polarization of the membrane is essential for the function of neurons, as it allows for the transmission of electrical signals and the communication of information between cells.
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You carry out a self-cross of the offspring produced from a cross between homozygous pea plants with yellow and green seeds. You observe a 3:1 phenotypic ratio in the next generation. What is the underlying genotypic ratio
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If the phenotypic ration is 3:1 then the underlying genotypic ratio will be 1:2:1.
The genotype of an individual is their own DNA pattern. More specifically, the two alleles a person acquired for a particular gene are referred to by this phrase. The observable character of this genotype is called a phenotype.The genotype of an organism is the particular arrangement of alleles for a particular gene. As an illustration, the genotypes for the flower-color gene in the pea plants were red-red, red-white, and white-white. The physical representation of an organism's allelic combination is called a phenotype.for example let us take the example of the height of pea plant. the T represent tall plant (dominant) while t represents short/dwarf plant (recessive). In this monohybrid cross the phenotypic ratio observed is 3:1 i.e., three tall plants and one dwarf plant.However the genotypes of the four offspring will be TT, Tt, Tt, tt.Hence the genotypic ratio comes out to be 1:2:1.The same is shown in the Punnett square below
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what structural details did you see in the plant and animal cell slides at the higher magnification that you did not observe at the lower magnification? include specific descriptions based on your sketches and observations made during the microscope virtual tour.
Answers
At higher magnifications, we can observe higher detailed structures present in the cells, such as organelles, cytoskeletal elements, and membrane structures.
In general plant cells, the cell wall and chloroplasts can be seen more clearly at higher magnifications. They also appear rigid, thick structure that surrounds the cell, while chloroplasts appear as green, oval-shaped organelles with stacked internal membranes known as thylakoids.
Also , animal cells the plasma membrane nucleus, and various organelles can be seen more clearly at higher magnifications. Plasma membrane appears like flexible structure that surround the cell. Other organelles known as mitochondria, Golgi apparatus, endoplasmic reticulum, may appear more clearly visible at higher magnifications.
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please answer ill give brainly
Answers
A.0.15mm
Explanation:
carryonlearningWhere does the egg receive its energy from?
options:
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
b. The uterus contains over 140 000 mitochondria to produce ATP and supplies this to the egg for growth.
c. Similar to sperm it receives its energy from fructose through its path to the uterus.
d. The ovum contains a large quantity of fimbria, which contains nutrients for the first days of development after fertilization.
Answers
Answer:
Until attachment to the uterus, the developing organism is on its own. That means it needs to supply its own energy, so the cytoplasm of the human egg cell contains many energy-generating factories called mitochondria. Those mitochondria come only from the mother.
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
Explanation:
If a true breeding purple plant is crossed with a true-breeding white flow plant, the possible phenotypes of the first generation of peas are ______.
A. 50% Purple and 50% white
B. All white
C. All Purple
Answers
On a punnet square, they would all be Purple and White, so the answer is A.
TRUE OR FALSE? The first system to show signs of life is the
respiratory system.
Answers
Which of the following is a possible base pair?
АТ
GA
ст
АВ
WILL MARK BRAINLIEST
Answers
The possible pairs are either GC or AT.
The answer is AT.
The movement by diffusion of charged ions such as Na+ and Cl- across the plasma membrane is blocked by the lipid bilayer in the middle of the plasma membrane. true of false?
Answers
Answer:
True.
Explanation:
As we know, the plasma membrane of the cells is semi-impermeable, that is, it only allows the passage of some molecules in sizes and specific burning nature. Although the Na + and Cl- molecules are very small, they are polar, electrically charged molecules. These molecules are not well seen by the membrane, which does not allow them to pass into the intracellular medium.