Answer:
a) Time = Distance/speed
Time = 30km/15km per hour
Time = 2 hour
b) Time = Distance/speed
Time = 30m/6m per sec
Time = 5 sec
Which is the best way to describes the Biodiversity of an areas
Answer:
Biodiversity is defined as “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems.” The importance of this definition ...
PLEASE HELP
what is the function of chromosomes
1) regulating the production of specific proteins
2) producing energy through metabolism
3) transmitting electrical signals through the body
4) controlling the rate of cellular division
Explanation:
1) regulating the production of specific proteins
c) Compare: - (1) Reflex action and Tropism. Four (4) points
Answer:
Explanation:
Sure! Here are four points comparing reflex action and tropism:
1. Definition and Nature:
- Reflex Action: Reflex action is an involuntary and rapid response to a specific stimulus, usually involving the nervous system. It is a type of automatic response that occurs without conscious thought or decision-making.
- Tropism: Tropism is a growth or movement response exhibited by plants in response to external stimuli. It is a directional growth or movement towards or away from a stimulus, such as light or gravity.
2. Types of Organisms:
- Reflex Action: Reflex actions are typically observed in animals, including humans. They are mediated by the nervous system and involve sensory receptors, neurons, and effectors.
- Tropism: Tropisms are primarily observed in plants, although some simple organisms like fungi and bacteria may also exhibit tropic responses. Plants show various tropic responses, such as phototropism (response to light), geotropism/gravitropism (response to gravity), and thigmotropism (response to touch).
3. Stimulus and Response:
- Reflex Action: Reflex actions are triggered by specific stimuli, such as pain, heat, or pressure. The response is immediate and aims to protect the organism or maintain homeostasis. Examples include pulling away from a hot object or blinking in response to a bright light.
- Tropism: Tropic responses in plants are triggered by external stimuli, such as light, gravity, or touch. The response is gradual and directional, leading to growth or movement towards or away from the stimulus. Examples include plant stems bending towards a light source (positive phototropism) or roots growing downward due to gravity (positive geotropism).
4. Mechanism:
- Reflex Action: Reflex actions involve a complex neural pathway. When a sensory receptor detects a stimulus, it sends a signal to the spinal cord or brain, which then sends an immediate motor response signal to the effectors (muscles or glands) to produce the reflexive action.
- Tropism: Tropisms in plants are typically controlled by hormones and growth regulators. The stimuli are detected by specialized cells or structures in the plant, and the hormones direct the growth or movement towards or away from the stimulus. The response is often mediated by differential growth rates on different sides of the plant part, resulting in bending or curvature.
It's important to note that while reflex actions are quick and involve animals' nervous systems, tropisms are slower and primarily observed in plants as growth responses.
2. What is the maximum initial reaction rate for this enzyme at pH 7?
The maximum initial reaction rate for this enzyme at pH 7 is 350.
What is the enzyme reaction's beginning rate?The initial rate of reaction is represented by the dotted red line on the plot, which displays the gradient of the straight line segment. When the concentrations of the enzyme and substrate are known, the initial rate of the reaction can be properly compared to fresh enzyme or substrate concentrations.
Why do enzymes function best at a pH of 7?The bulk of naturally existing living things have a pH of 7, which is neutral and where enzymes function best. At pH 7, which is considered neutral, the quantities of acid and base are equal.
To know more about Initial reaction rate visit:
https://brainly.com/question/9120058
#SPJ9
Photosynthesis could not occur without which of the following?
Answer: I think it’s is sunlight I hope this is right
Explanation:
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.Plants use chlorophyll, usually found in their leaves, to absorb sunlight. The light energy from the sun is what fuels the reactions that transform carbon dioxide and water into glucose and oxygen. Without light, photosynthesis is impossible
Which phrase describes a stimulus in a feedback loop?
1.An action that causes the system to return to an average condition
2.A message that is sent from the receptor to the control center
3.A control governed by hormones and the nervous system working
together
4.A chemical, physical, or thermal factor in the environment that can
disrupt a system
The phrase describes a stimulus in a feedback loop is D. a chemical, physical, or thermal factor in the environment that can disrupt a system
What is a feedback loop?When reactions affect themselves, feedback loops form, which can be positive or negative. Consider a thermostat that controls the temperature of a room. This is an illustration of a negative feedback loop. The thermostat turns off the furnace as the temperature rises, allowing the room to cool to a predetermined temperature.
A stimulus changes homeostasis in a feedback loop, and a sensor detects that change. The sensor is detected by the control center, which then takes action, such as producing a hormone. The feedback loop's target is the effector organs, which respond to the stimulus.
Learn more about feedback loop on:
https://brainly.com/question/2902510
#SPJ1
29. Brain has one son, two grandchildren, and three great-grandchildren. This is example of
O exponential growth.
Odynamic growth.
O linear growth.
Obinary growth.
This is an example of exponential growth.
Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.
In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.
Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.
The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.
As the generations continue, the number of descendants grows exponentially larger.
Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.
In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.
Therefore, the example given aligns with the concept of exponential growth.
For more answers on exponential growth
https://brainly.com/question/13223520
#SPJ8
I NEED HELP FAST For a science day demonstration, Ms. Morella's class built a model showing how Earth's various spheres interact with one another. Which process could the class use to show interactions among the hydrosphere, the atmosphere, and the biosphere?
Group of answer choices
erosion of soild by flowing water
photosynthesis in a large rain forest
formation of icebergs as glaciers reach the sea
breaking down of rocks by mechanical weathering of tree roots
The process that the class could use to show interactions among the hydrosphere, the atmosphere, and the biosphere is the photosynthesis in a large rain forest.
What is photosynthesis?Photosynthesis can be described as the process that the plants do utilize to engage sunlight, water, as well as the carbon dioxide so that they can form oxygen as well as energy .
It should be noted that in this process there will be interactions among the hydrosphere, the atmosphere, and the biosphere as a result of the sunlight and water that is been used by plant in this process.
Therefore , option B is correct.
Learn more about photosynthesis at:
https://brainly.com/question/19160081
#SPJ1
what's is pharamacolg
Explanation:
It's a branch of medicine and pharmaceutical sciences concerned with drug or medicine action. Where a drug may be defined as any artificial, natural, or endogenous molecule which exerts a biochemical or physiological effect on a cell, tissue, organ or organism.
Pharamacolog is the branch of medicine concerened with the uses,effects and modes of action of drugs
which position on an electrocardiogram is associated with the first sound of a heartbeat
A. P wave results from repolarization of the atria.
B. QRS complex results from ventricular depolarization.
C. P wave occurs after the QRS complex but before the T wave.
D. T wave represents depolarization of the atria.
E. repolarization of the atria is clearly visible.
The answer is C. P wave occurs after the QRS complex but before the T wave.
Which statement best explains how the genetic code is universal? * The shape of a DNA molecule is the same in different species. A DNA sequence codes for the same proteins in different species. The nucleotide ratios in the DNA molecule are different between species. DNA sequences are unique for each species.
Answer:
A DNA sequence codes for the same proteins in different species
Explanation:
All living organisms store their genetic information in DNA (genetic material). The manner through which information in the genes are encoded is the GENETIC CODE. The genetic code comprises of all the codons that specifies amino acids in living organisms. The genetic code has several characteristics, which includes that the GENETIC CODE IS UNIVERSAL
The genetic code is said to be universal because all known living organisms use the same genetic code to encode their genetic information. This means that a DNA sequence codes for the same proteins in several different species. For example, codon AUG encodes the amino acid METHIONINE in every living organism.
Which two generalizations can be made based on what you know about cycles of matter in a closed system?
-New-matter is added, and oid matter is destroyed:
-Matter changes its physical form, allowing it to return to its original state.
-The amount of matter within the system remains the same.
-Matter and energy can cross the boundaries of the system.
-The cycle has a well-defined starting and stopping point.
The amount of matter in the system is constant, and the cycle has a clearly defined beginning and end.
How does Physics Define Matter?A substance called matter is made up of several kinds of particles, occupies space, and has inertia. The many sorts of particle each have a unique mass and size according to the principles of current physics.
What exactly is a matter unit?The fundamental building block of the cosmos is the atom. Atoms are referred to be the basic matter units and have a nucleus made up of protons and neutrons with electrons revolving around it. Every component in the periodic table is made up of a unique arrangement of protons, neutrons, and electrons.
To know more about matter visit:
https://brainly.com/question/29232090
#SPJ1
Describe an example of a relationship between a cell organelle and a task a cell must perform
Answer: These organelles are like the organs in a human and they help the cell stay alive. Each organelle has its own specific function to help the cell survive. The nucleus of a eukaryotic cell directs the cell's activities and stores DNA. Eukaryotes also have a Golgi apparatus that packages and distributes proteins.
An example of a relationship between a cell organelle and a task a cell must perform is: Mitochondria and transformation of energy by a cell.
A cell refers to the fundamental functional and smallest unit of life in all living organisms.
According to their cell type, all living organisms are mainly divided into two (2) main groups and these include;
Unicellular organisms. Multicellular organisms.Cell organelles can be defined as the organs (workers) that are saddled with the responsibility of performing various tasks or functions for the survival of a living organism. Some of the cell organelles found in living organisms include the following:
Nucleus.Cytoplasm.Cell membrane.Golgi apparatus.Mitochondria.Mitochondria is usually referred to as the power house of a cell because it is mainly responsible for the provision and transformation of all of the energy required by living organisms.
In conclusion, an example of a relationship between a cell organelle and a task a cell must perform is the provision and transformation of energy by mitochondria for the optimum performance of a living organism.
Read more: https://brainly.com/question/19559847
What are the characteristics of carbohydrates? (select all the apply)
(A) contains phosphorus
(B) building material
(C) moves on its own
(D) source of energy
Carbohydrates are the nutrients that are most frequently employed as an energy source. Monosaccharides are single sugar molecules that serve as the building for all other sugars and carbohydrates. Thus option B and D are correct.
What is carbohydrates?Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.
Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
A vast variety of both good and bad foods, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, include carbohydrates.
They can take on various shapes as well. Starches, fibers, and sugars are the most common and ubiquitous types.
Therefore, carbohydrates serve as source of energy and building material.
Learn more about carbohydrates here:
https://brainly.com/question/14614055
#SPJ2
Javier and Jessica are measuring the water temperature of a stream. Javier records the water temperature as 56 degrees. Jessica tests the water at the same location but finds the temperature to be 13 degrees. What is most likely cause of the different results and how should they be remedied in the future
The most likely cause is using different temperature scales. They should use the same scale and calibrate equipment.
Javier recorded the temperature as 56 degrees, which may suggest he was using the Fahrenheit scale. Meanwhile, Jessica found the temperature to be 13 degrees, indicating she may have been using the Celsius scale.
The two scales have different freezing and boiling points, which can result in significantly different temperature readings. To avoid this issue in the future, they should ensure they are using the same temperature scale and regularly calibrate their equipment to ensure accurate measurements. By doing so, they can increase the reliability of their results and minimize measurement errors.
To learn more about temperature follow the link:
https://brainly.com/question/11464844
#SPJ1
Question 30.
Infer from the data in the diagram above how scientist classify organisms from the same species
Mexican wolves are little, have robust muscles, and are diminutive. They are curious about their other traits in addition to their white fur. Therefore, scientists first identify before classifying. Therefore, they have determined that they have small organisms and thick muscles in the proper places. As a result, they will first separate the wolves into little Mexican wolves and larger wolves will immediately be exterminated from this species.
How do scientists classify organisms of the same species?
Molecular commonalities serve as the primary basis for modern scientific classification. They put creatures with comparable DNA and proteins together. Organisms are connected because of molecular commonalities. In other words, they share a common ancestor from the distant past.
Why do we classify organisms?
The taxonomy of organisms is crucial for understanding the diversity of living things and recognizing different types of creatures. Classifications facilitate learning about a wide range of various plants and animals, as well as their characteristics and similarities.
To know more about classification visit
brainly.com/question/1427257
#SPJ1
Which of the components of addiction would the following statement fall under? "Online shopping helps me relax at night."
The sentence "Online shopping helps me relax at night." can be tagged as mood modification.
What are components of addiction?
The various addiction symptoms include impaired control, social problems, risky use, and drug effects.
Addiction is a disorder characterized by a compulsive desire to continue taking a drug or continue a harmful behavior, such as gambling, despite harmful consequences.
The following are the basic addiction components;
salience, mood modification, tolerance, withdrawal symptoms, conflict, and relapseThus, the sentence "Online shopping helps me relax at night." can be tagged as mood modification.
Learn more about components of addiction here: https://brainly.com/question/1189815
#SPJ1
Why is art a fun class to take.
Art class provides a creative outlet for self-expression and allows students to develop their imagination, critical thinking, and problem-solving skills in a fun and engaging way.
What is an art class?Art class provides a creative outlet for students to express themselves and unleash their imagination. It allows them to explore different mediums, techniques, and styles, and to experiment with color, form, and texture. In art class, there is no right or wrong answer, and students are free to experiment and make mistakes.
The class also encourages critical thinking, problem solving, and communication skills, as students learn to discuss and analyze works of art. Art class is a place where students can forget about their other classes and just have fun making art.
Learn more about art, here:
https://brainly.com/question/30397029
#SPJ9
I lived around 2.5 mya in eastern Africa. I had a small cranial capacity (around 410 cc), large molars, large zygomatic arches, and a sagittal crest. What species am I
Answer:
Australopithecus aethiopicus
Explanation:
Australopithecus is the earliest known robust australopithecine. P. aethiopicus, it was discovered in 1985 with very few remains and it was used to classify it brain.
It has a strongly protruding face, large teeth, wide cheeck,powerful jaw, and a well developed sagittal crest. They are said to have lived for about 2.5 million years in the east Africa.
The orientation the base of the skull is weakly flexed. Evolution of new species have led to the extinction of Australopithecus aethiopicusand only few of it can be available at conservation centres.
If a person lived 2.5 mya in Eastern Africa with large molars, large zygomatic arches, and a sagittal crest, the person must be Australopithecus aethiopicus.
Australopithecus aethiopicus:
It is a early human species that was known to live 2.5 million years ago in the Eastern Africa.
They have large molar teeth.The zygomatic arches was very large.The sagittal crest, was vey developed.Therefore, if a person lived 2.5 mya in Eastern Africa with large molars, large zygomatic arches, and a sagittal crest, the person must be Australopithecus aethiopicus.
To know more about Australopithecus aethiopicus,
https://brainly.com/question/17406854
What are four ways that the body temperature is maintained
Answer:
mouth butt private and head
What causes local winds
Answer:
Small-scale convection currents arise from uneven heating on a smaller scale. This kind of heating occurs along a coast and in the mountains. Small-scale convection currents cause local winds. Local winds blow over a much smaller area and change direction and speed over a shorter period of time than global winds.
I have twelve hours to live bye have a nice day
Answer:
I hope you spend that much time, happily at peace.
Within which structure of an animal cell does DNA replication take place? *
1) vacuole
2) cell membrane
(3) nucleus
(4) ribosome
Which statement BEST compares how matter and energy move among organisms in the food chain?
A.
Matter cycles among organisms and energy flows among organisms in the system, and both matter and energy are conserved.
B.
Matter and energy both flow among all organisms in the system, but only energy is conserved.
C.
Matter and energy both cycle among all organisms in the system, and both matter and energy are conserved.
D.
Matter flows among organisms and energy cycles among organisms in the system, but only matter is conserved.
Matter and energy both cycle among all organisms in the system, and both matter and energy are conserved.
An ecosystem is a self-supporting unit that is comprised of living and non-living parts.
In an ecosystem, matter and energy are cycled in the system. Energy enters the ecosystem through the sun and is captured by green plants. This energy is passed along the food chain in food materials.
Also, matter such as gases are exchanged between the living and the nonliving parts of the ecosystem.
Finally, both matter and energy are conserved in the ecosystem.
Learn more: https://brainly.com/question/1061425
Answer:
I would say B.
because as an organism consumes another it will later use its energy for itself.
Explanation:
What hypothesis explains why all birds share similar characteristics?
Answer:
this is a common ... saw incredible similarities between birds and the theropod dinosaurs (especially ... Like all other reptiles, birds have scales (feathers are produced by tissues similar to ... for theropods are often more serious for the "thecodont" pseudo-hypothesis.
Explanation:
Answer:
The modern version of the "from the ground up" hypothesis argues that birds' ancestors were small, feathered, ground-running predatory dinosaurs that used their forelimbs for balance while pursuing prey
Explanation:
Which type of gene is only expressed if there are two genes of that type? (1 point)
O recessive gene
O Co-dominant gene
O dominant gene
O inactivated gene
Is this table correct?
The table showing the volume of fresh water and salt water in cubic meters found in the various water bodies is correct.
The total combined volume of 5,774,809 cubic miles fresh water found in glaciers and rivers isThere are 5.773.300 more miles of fresh water found in glaciers than in rivers.What are salt water and fresh water?While salt water is water found in oceans and seas, freshwater is naturally occurring water that has a low percentage of salts and other dissolved particles.
The ocean, coral reefs, and estuaries are all examples of marine ecosystems. For saltwater to remain at an appropriate salinity for fish, a higher salt concentration is needed.
Learn more about salt water and fresh water at: https://brainly.com/question/30706114
#SPJ1
which statement are true of any saturated solution at a given temperature? A. No more solute will dissolve in the solution B. Adding more solute will increase the saturation C. You can dissolve more solute if you stir the solution D. One liter of the solute contains 2000 grams of solute
Answer:
I believe the answer is B
Explanation:
It can't be D tho
in a flowering pot, tall is dominant to short, and blue flowers is dominant to white flowers. The top with white flowers is crossed with a short plant with blue flowers. What is the chance that the offspring will be short with white flowers?
Answer:
There is a 0% chance that the offspring will be both short and white flowers.
Explanation:
For this we are going to go in and use the Punnett squares. Let´s identify the dominant and recessive genes.
Tall Flowers are Dominant - T(capital for dominance)
Short Flowers are Recessive - t(lowercase for recessiveness)
Blue Flowers are Dominant - W(Capital for dominance)
White Flowers are Recessive - w(Lowercase for recessiveness)
Let´s set up our chart with the information that we have. Its easy to draw the chart, but we need to understand the genes, and make sure that everything is okay!
There is a picture that I took of the chart on the bottom of the page. You can see the dominance of the Tall gene, and the Dominance of the Blue gene. Because none of the offspring have a chance of being short of white, that makes it impossible to have a percentage any higher than 0%.
UNLESS there is a clear mishap or genetically mutated gene in the flower. We never know! I really hope this helped!
Two locations have different water vapor Contant in the atmosphere which of this is likely to be recorded
Answer:
The water vapor content in the atmosphere is typically recorded using a measurement called relative humidity, which represents the amount of water vapor present in the air relative to the maximum amount the air could hold at a given temperature. Therefore, if two locations have different water vapor content in the atmosphere, it is likely that they would have different relative humidity readings.
For example, if one location has a higher water vapor content in the air, it would have a higher relative humidity measurement than a location with a lower water vapor content. Conversely, if one location has a lower water vapor content in the air, it would have a lower relative humidity measurement than a location with a higher water vapor content.
It is important to note that other factors can also influence relative humidity measurements, such as temperature and atmospheric pressure, so a direct comparison of relative humidity readings between two locations should take these factors into account.
Send a message...
ChatGPT Mar 23 Version. Free Research Preview. ChatGPT may produce inaccurate info