The graph shows how the population of turtles in a freshwater pond has
changed over the years.
Turtle Population
250
225
200
175
150
Number of Turtles
125
100
75
50
5
6
10
Year
At which time has the turtle population reached the carrying capacity of the
pond?
A. Year 1
B. Year 5
C. Year 3
O D. Year 10
Answers
Answer:
B. Year 5.
Explanation:
In 5 years time the turtle population reached the carrying capacity of the pond. Carrying capacity of pond refers to the population of marine animals such as fishes, turtles etc can live and survive on the natural food available in the pond. If the food is present in large amount, than carrying capacity of the ecosystem is large. In pond ecosystem, the population of turtle decreases because the food is not sufficient to feed the existing population.
Answer:6 years
Explanation:
Related Questions
Plant selection is important for a rain garden. Which of the following best describes the types of plants that would be most effective to use in the rain garden in this experimental design to reduce the impact of urban runoff
Answers
Plants that are native to the local area and are well-suited to the soil and climate would be most effective to use in a rain garden to reduce the impact of urban runoff.
These plants have deep root systems that help to absorb and filter water, reducing the amount of runoff that enters local waterways. They also help to reduce erosion and improve water quality. Additionally, plants that are drought-tolerant and able to withstand periods of standing water would be beneficial, as rain gardens can hold water for extended periods. It is important to note that the choice of plants will depend on the local conditions and the experimental design of the rain garden, for example, the pH of the soil, the amount of sun exposure, and the size and location of the rain garden. An expert in the field of horticulture or hydrology would be best suited to make recommendations for plants that would be most effective in a given location.
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Match the signs of development with the appropriate trimester. Fingerprints have developed. The fetus can hear and see. The heart beats for the first time. Nerve cells have developed. The sex can be determined. Fat begins to develop. The fetus starts to move.
Answers
Answer:lo
Explanation:jj
Answer:
the attachment
Explanation:
A stiff neck due to spasmodic contraction of the neck muscles that pull the head toward the affected side is known as ____________________.
Answers
A stiff neck due to spasmodic contraction of the neck muscles that pull the head toward the affected side is known as Torticollis.
What is torticollis?Torticollis, also known as wry neck, is a condition in which the neck muscles contract involuntarily, causing the head to twist to one side. The condition can range from mild to severe, and it can be either congenital or acquired.
What causes torticollis?The causes of torticollis are unknown in many situations. There are, however, a number of identified causes, including:Family history, InfectionsDamage to the neck muscles or blood supply, Damage to the basal ganglia in the brain.Torticollis is categorized into two types: congenital and acquired.
In newborns, torticollis is usually caused by birth trauma, such as difficulty during a breech delivery, that results in injury to the sternocleidomastoid muscle. Congenital torticollis affects around 0.3 percent of newborns.
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g DNA that contains actively transcribed genes would most likely contain chromatin in the in the tightly-packed heterochromatin configuration. True False
Answers
False. gDNA that contains actively transcribed genes would most likely contain chromatin in the loosely-packed euchromatin configuration.
1. Chromatin structure: Chromatin is the complex of DNA and proteins that make up the structure of chromosomes within the nucleus of cells. It exists in two main configurations: euchromatin and heterochromatin.
2. Euchromatin: Euchromatin is a less compacted form of chromatin that is associated with actively transcribed genes. It is more accessible to the transcriptional machinery, allowing for gene expression.
3. Heterochromatin: Heterochromatin is a highly condensed form of chromatin that is generally associated with genes that are transcriptionally inactive or less actively transcribed. It is tightly packed and less accessible to the transcriptional machinery.
4. Transcription of genes: When genes are actively transcribed, the DNA is unwound and opened up to allow access to the transcriptional machinery, such as RNA polymerase. This process occurs in euchromatin regions.
5. Accessibility and gene expression: Euchromatin configuration allows for the accessibility of transcription factors and other regulatory proteins to bind to DNA, facilitating gene expression and transcription.
6. Heterochromatin and gene silencing: Heterochromatin, on the other hand, is associated with gene silencing or reduced gene expression due to the compacted nature of the chromatin structure, making it less accessible to the transcriptional machinery.
7. Active genes and euchromatin: Therefore, gDNA that contains actively transcribed genes is more likely to be associated with euchromatin configuration, as it provides a more permissive environment for gene expression by allowing access to the necessary transcriptional machinery.
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If you detect evidence for some gene flow between the diverging types sometime during the speciation process, which form(s) of speciation can you exclude? - reinforcement - allopatric - sympatric - allopatric and sympatric - allopatric and reinforcement
Answers
Reinforcement can be excluded amongst the given forms of speciation as it will not allow any gene flow to occur.
In allopatric speciation, the species belonging to the different populations are separated through a geographic barrier. Geographic barrier can basically denotes any barriers provided by the environment like the river, lake etc. Whereas, sympatric speciation involves no physical barriers and the individuals are in close proximity with each other.
Both allopatric and sympatric speciation allow gene flow to occur. Reinforcement causes complete reproductive isolation and hence does not allow any gene flow to occur. No gene flow among the diverging types will be observed during reinforcement.
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All of the following describe transport proteins EXCEPT
a. they are very specific in the type of molecule they transfer.
b. they are embedded in the cell membrane.
c. they allow large molecules to pass across the cell membrane.
d. they help small hydrophobic molecules to pass across the cell membrane.
d. there are hundreds of types in the human body.
Answers
EXCEPT FOR d. they facilitate the passage of tiny hydrophobic molecules across the cell membrane, the following statements all describe transport proteins.
A transport protein is which of the following?Because it transports oxygen from the lungs to the rest of the human body, Haemoglobin protein is a transport or carrier protein.
What three varieties of transport proteins are there?Three different classes of transport proteins are involved in assisted diffusion: channel proteins, gated channel proteins, and carrier proteins. A channel protein, a subclass of transport protein, functions as a pore in the membrane by rapidly allowing water molecules or tiny ions to pass.
Transport proteins, also referred to as transmembrane proteins, are membrane proteins that support the active or assisted passage of ions across the hydrophobic lipid bilayer.
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calculate the values for minute ventilation, anatomical dead space ventilation, and alveolar ventilation. drag the elements placed at the bottom and drop them into the appropriate boxes.
Answers
The values for minute ventilation, anatomical dead space ventilation, and alveolar ventilation are as follows:
Minute Ventilation = 4800 ml/min
Anatomical Dead Space Ventilation = 1800 ml/min
Alveolar Ventilation = 3600 ml/min
Explanation:
Given the following data:
Tidal Volume (VT) = 400ml,
Respiratory Rate (RR) = 12/min,
Anatomical Dead Space (ADS) = 150ml
We are to calculate the values for minute ventilation, anatomical dead space ventilation, and alveolar ventilation.
To calculate the values for minute ventilation, anatomical dead space ventilation, and alveolar ventilation, we have:
Minute Ventilation (VE) = VT × RR = 400 ml × 12/min = 4800 ml/min
Anatomical Dead Space Ventilation (VDS) = ADS × RR = 150 ml × 12/min = 1800 ml/min
Alveolar Ventilation (VA) = (VT − ADS) × RR = (400 ml − 150 ml) × 12/min = 300 ml × 12/min = 3600 ml/min
Therefore, the values for minute ventilation, anatomical dead space ventilation, and alveolar ventilation are as follows:
Minute Ventilation = 4800 ml/min
Anatomical Dead Space Ventilation = 1800 ml/min
Alveolar Ventilation = 3600 ml/min
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what would result from damage to the anterior white matter of the spinal cord (assume damage to upper motor neurons only)?
Answers
Answer:
Damage to the anterior white matter of the spinal cord would result in a loss of proprioception and pain sensation. The loss of proprioception would cause an individual to lose control over their muscles, leading to paralysis. The loss of pain sensation would not cause any immediate symptoms, but could potentially lead to long-term damage if left untreated.
Damage to the anterior white matter can be caused by a variety of injuries or diseases, including: stroke, multiple sclerosis (MS), and tumors. MS is an autoimmune disease that damages the myelin sheath surrounding nerve.
Explanation:
I need help with this is anybody available
Answers
Answer and Explanation:
2.
Fatty acids and glycerol - B. Lipid
Monosaccharide - D. Carbohydrate
Nucleotide - C. Nucleic Acid
Amino Acid - A. Protein
3.
DNA - C. Nucleic Acid
Enzyme - A. Protein
Triglyceride - B. Lipid
Polysaccharide - D. Carbohydrate
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Which of the following is a difference between small interfering RNAs (siRNAs) and microRNAs (miRNAs)?a.siRNAs inhibit gene expression while miRNAs upregulate gene expression.b.siRNAs bind with proteins to form an RNA-induced silencing complex while miRNAs do not.c.siRNAs are double stranded while miRNAs are single stranded.d.siRNAs tend to base pair perfectly with mRNAs while miRNAs often pair with mRNAs in an imperfect manner.e.The Dicer enzyme is used to produce siRNAs but not used to make miRNAs.
Answers
The correct answer is (d) siRNAs tend to base pair perfectly with mRNAs while miRNAs often pair with mRNAs in an imperfect manner. This is a key difference between siRNAs and miRNAs.
siRNAs and miRNAs are both types of small RNAs that play important roles in post-transcriptional gene regulation. They are both generated by the action of the Dicer enzyme, which cleaves double-stranded RNA molecules into short, single-stranded fragments. siRNAs and miRNAs differ in their mode of action and their target specificity. siRNAs are typically generated from exogenous sources, such as viral or transposon RNA, and are involved in the defense against foreign nucleic acids. They inhibit gene expression by binding to complementary mRNAs and directing their degradation.
In contrast, miRNAs are derived from endogenous genes and are involved in the regulation of cellular processes, such as development, differentiation, and apoptosis. They act by binding to partially complementary regions in target mRNAs and repressing their translation or stability.
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HELP PLS HURRY i really i need this done
Answers
A terrarium is a small closed container in which a selection of living plants and sometimes small land animals, such as turtles and
Lizards are kept and observed. What kind of system is modeled this setup?
A)
land
B)
a zoo
an aquarium
Trevor Hadley S583658542
joined session
D)
an ecosystem
Answers
Answer:
ecosystem
Explanation:
The pancreas contains exocrine cells that secrete digestive enzymes into the ____________ , and clusters of endocrine cells called pancreatic islets, which secrete insulin and ____________ , to regulate blood glucose levels. When blood glucose levels are high, the pancreas secretes the hormone insulin, which causes the liver to remove excess glucose from the blood and to store it in the liver as ____________ . When this stored form of glucose is low, the liver converts ____________ from fats and amino acids to glucose molecules. Most pancreatic cells produce pancreatic juice, which contains ____________ , to help neutralize the stomach acid. Pancreatic amylase digests ____________ , trypsin digests protein, and lipase digests fat. The major functions of the liver include: removing or detoxifying harmful substances from the blood; storing glycogen, ____________ , and several vitamins; synthesizing many proteins found in the blood ____________ ; and regulating blood cholesterol. Another function of the liver is to produce bile, which is a yellowish-green color because it contains bilirubin, a breakdown product of ____________ . Bile also contains bile salts, which serve to emulsify ____________ in the small intestine.
Answers
Answer:
The correct answer is - small intestine; glucagon, glycogen; glycerol, sodium bicarbonate; starch, iron, plasma, hemoglobin; fats.
Explanation:
The digestive enzymes are released in the small intestine by pancreatic cell, the cluster of these pancreatic exocrine cells called pancreatic islets that release insulin and glucagon hormones for controlling blood sugar level.
Insulin stores the excess amount of blood glucose in the liver as glycogen and in the case of low sugar glycerol is converted to glucose from fats. Pancreatic juice contains sodium bicarbonate to regulate acidity and the amylase enzyme helps in digesting starch. The liver stores various nutritional substances such as vitamins and iron and others and release them in blood plasma.
What is gel electrophoresis used for?
O A. Cutting DNA into sections
O B. Separating strands of DNA
O C. Performing reverse transcription
O D. Cloning organisms
Answers
Answer:
B. separating strands of DNA
Gel electrophoresis used for separating strands of DNA
What is electrophoresis?Electrophoresis can be defined as a technique used to separate molecules of DNA, RNA or protein molecules on the basis of their electrical charge and size
It also used to identify microorganismsIt is also used in genetic testingElectrophoresis analysis is used in forensics to compare DNA,Below are four major components of gel electrophoresis:
DNA is extractedIsolation and amplification of DNADNA added to the gel wellsElectric current applied to the gel.Learn more about gel electrophoresis:
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Which ones go in the circles ?
Answers
Answer:
Nucleic Acids- DNA- double chain- deoxyribose- ACGT- nucleus- mRNA
RNA- single chain- ribose- ACGU- cytoplasm- mRNA, tRNA, rRNA
Explanation:
This punnet square shows the inheritance of flower color in snapdragon flowers.
The alleles for flower color show ______ because both alleles are _____in ______individuals.
Answers
Answer:
This Punnett square shows the inheritance of flower color in snapdragon flowers.
The alleles for flower color show incomplete dominance because both alleles are expressed in heterozygous individuals.
In chicken feather color black is incomplete dominant to white. The intermediate is Blue.
A blue feathered chicken is crossed with a white feathered chicken.
If they produce 8 chicks, how many will have Blue feathers?
a.0
b.4
c.8
d.2
Answers
Answer:
about 4
Explanation:
how are the consequences of injuries to the heart and spinal cord similar to each other? How are they different from the consequences of injuries to smooth muscle?
Answers
Answer: similar: both live long
difference: the cells can't divide
Explanation:
A substitution mutation occurred and changed the 5th base in the DNA from a C to a T. Write the sequence of RNA codons that would result from this kind of mutation. **Separate each codon with a space. TACACGCAATTACCAGGGTAGCCATTGATT
Answers
The sequence of RNA codons resulting from the substitution mutation that changed the 5th base in the DNA from a C to a T is AUGUGCGUUAUCCAGGGUAGCCAAUUGA.
In DNA, the base C (cytosine) pairs with G (guanine), while in RNA, the base C pairs with G. However, due to the substitution mutation, the original C is replaced by a T (thymine) in the DNA sequence.
In RNA, thymine is replaced by uracil (U). Therefore, the RNA codons corresponding to the mutated DNA sequence can be derived by replacing each T with U and maintaining the sequence order.
The original DNA sequence TACACGCAATTACCAGGGTAGCCATTGATT would have the corresponding RNA codons AUGUGCGUUAUCCAGGGUAGCCAAUUGA. Each codon consists of three bases and represents a specific amino acid or a start or stop signal in the translation process of protein synthesis.
It's important to note that the given DNA sequence is provided as a single continuous string, and without additional information about the reading frame or specific gene sequence, it is not possible to determine the precise protein sequence or the functional implications of the mutation.
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What bonds with 2 hydrogens to form water?
Answers
Answer:
Oxygen
Explanation
yes
Answer:
oxygen
Explanation:
A water molecule consist of two hydrogen atoms bounded to an oxygen atom and it's overall structure are bent
The human sense of taste involves receptors cells that respond to _____ basic taste
Answers
The human sense of taste involves receptors cells that respond to chemicals entering oral cavity basic taste.
Taste receptors are modified elongated epithelial cells that are present on the tongue, tonsils, pharynx, epiglottis, and hard and soft palates throughout the oral cavity. Regional gene expression around taste buds regulates their formation and is in part regulated by innervating nerves.
Taste pores are openings in the epithelium for chemical substances to enter. Peripheral sensory innervation is through branches of three cranial nerves: facial (VII), glossopharyngeal (IX), and vagal (IV) (X). Only three of the four morphologically unique forms of lingual papillae—the fungiform, foliate, and circumvallate papillae—bear taste receptors.
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Other than phosphocreatine breakdown, the fastest way to resupply atp to a muscle is:_________
Answers
The quickest way to provide ATP to working muscles is through anaerobic glycolysis.
Anaerobic glycolysis: What does it do?As each glucose molecule yields two ATP, glycolysis offers a direct method of generating energy in the absence of oxygen. Anaerobic glycolysis is the term used to describe the process of breaking down glucose without the presence of oxygen.
Anaerobic glycolysis takes place where?One 6 carbon glucose molecule undergoes glycolysis in the cytoplasm, where it is oxidised to produce two 3 carbon pyruvate molecules.
Pyruvate's fate is determined by whether or not the cells have mitochondria and oxygen.
Why is phosphocreatine required by muscles?The requirement to regenerate ATP is critical because the muscles' finite supply of ATP is consumed during muscle activity very quickly.
The molecule creatine phosphate is one method by which this ATP supply is renewed (or phosphocreatine).
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5. A compound that produces hydrogen ions in
solution is a(an)
a. salt.
c. base.
b. acid.
d. polymer.
11.
12
Answers
Answer:
The answer is b
Explanation:
an acid is a compound that donates hydrogen ion
Which of the following is NOT something that both cells and virus share??
Answers
What is a genotype???????
Answers
Answer: A genotype is an individual's collection of genes.
Explanation:
How the
immune system works, explain why injecting an
antigen from a pathogen would help our immune
system create "memory" of the infection but not
cause the disease.
Answers
Answer:
Our immune system produces antibodies against that antigen of pathogen.
Explanation:
Injecting an antigen from a pathogen would help our immune system memorize the infection and protect our body from causing of the disease because our immune system produces antibodies against that antigen so when the pathogen enters our body these antibodies attack on that and prevent them of causing infection in the body so that's why injecting an antigen has to be done from the childhood to prevent diseases.
A culture of living cells includes a solution called a
Answers
Answer:
C) medium
Explanation:
medium can be solid, semi-solid or liquid
mediums are designed to grow living cells of plants, animals, humans and microbes
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Naive lymphocytes homing to lymphoid tissue use _____ to bind to CD34 and GlyCAM-1 on high endothelial venules.A.L-selectinB.ICAM-1C.CCL21D.CD2 (LFA-2)E.CD28
Answers
Naive lymphocytes homing to lymphoid tissue use L-selectin (A) to bind to CD34 and GlyCAM-1 on high endothelial venules (HEVs).
L-selectin, a cell adhesion molecule found on the surface of lymphocytes, plays a crucial role in lymphocyte trafficking by facilitating the initial tethering and rolling of naive lymphocytes on the endothelium of HEVs.
CD34 and GlyCAM-1 act as ligands for L-selectin, promoting lymphocyte adhesion and allowing them to enter the lymphoid tissue. This process is essential for immune surveillance, as it enables lymphocytes to encounter antigens and receive appropriate activation signals in secondary lymphoid organs.
In contrast, the other molecules listed (ICAM-1, CCL21, CD2, and CD28) serve different roles in immune cell interactions and are not directly involved in the process of naive lymphocyte homing to lymphoid tissue via binding to CD34 and GlyCAM-1 on HEVs. Hence, the correct answer is Option A.
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which of these sensors will allow you to observe the electrical activity of a muscle? group of answer choices ekg/emg sensor hand grip heart rate monitor respiratory belt dynamometer
Answers
The sensor that allows you to observe the electrical activity of a muscle is the EMG sensor.
An EMG sensor is an instrument that measures electrical activity in the muscles.
The electrical activity is generated when the muscle contracts, and it can be recorded using surface electrodes that are attached to the skin overlying the muscle or through needles that are inserted into the muscle.
The EMG signal provides valuable information about muscle function, such as the strength of muscle contractions, the timing of muscle activity, and the coordination of muscle groups.
EMG stands for electromyography, which is the study of muscle electrical activity. This technique is used in a wide range of applications, such as diagnosing neuromuscular disorders, assessing muscle function in athletes, monitoring rehabilitation progress in patients recovering from injury, and researching the biomechanics of movement.
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if you can't eat metal would that be not edible or not edible YET