Answer and Explanation:
The exposed example refers to a population that exhibits a logistic growth model. Population growth depends on density, the natality and mortality rate depends on the population size, which means that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population's per capita growth rate decreases as population size increases. The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that coincides with the size of the population at the equilibrium point when the natality rate and the mortality rate get qual to each other.
If the population size, N, is inferior to K (N<K) the population can still grow. When N approximates to K, the population´s growth speed decreases. When N=K, the population reaches equilibrium, and when N is superior to K (N>K) the population must decrease in size because there are not enough resources to maintain that size.
The sigmoid curve represents the logistic growth model. At the beginning population grow slowly. In the exposed example this occurred when the small group of 10 foxes moved to the new environment, starting a new population. In the second stage, the population size increases rapidly. Probably this happened when foxes reached a number of 40 individuals. And finally, slow and gradually, the population reaches the equilibrium point, K, which depends on resource availability. This point belongs to the stage where food starts to become harder to find, and much of the living space is occupied.
As the foxes population in the exposed example is still growing but in a decreased rate, we could assume that this population is reaching its carrying capacity, but it is not there yet. This population is reaching the top of the sigmoid curve. N is approximating to K, and the population´s growth speed decreases.
Answer: Transitional
Explanation: since there are no options the answer is
In your words, describe why an astronauts weight is different on the moon than on the earth?!?!
because weight depends.upon gravity and mass but gravity on earth d differs from gravitu on moon
Answer:
Explanation :The Earth's Moon has considerably less mass than the Earth itself. And also the gravitational attraction on the Moon is much less than it is here on Earth, and a person weighs less on the Moon
hope this helps you
The juxtaglomerular apparatus secretes:_________.
A. renin.
B. ADH.
C. oxytocin.
D. aldosterone.
E. angiotensin.
Answer:
I THINK OPTION B) ADH. IS THE RIGHT ANSWER.
Explanation:
HOPE IT HELP....which statement best supports the RNA world hypothesis?
Answer:
B
Explanation:
When blood calcium falls too low, a regulatory system acts in three locations to raise it. Which of these is not one of the locations?
a. stomach
b. small intestine
c. bones
d. kidneys
Answer:
a) stomach
Explanation:
The mutation that causes SCD causes what kind of change in the structure of hemoglobin?
Answer:
A group of blood disorders generally passed on from the parents to the offspring is known as SCD or sickle cell disease. Of the disease, the most common is the SCA or sickle cell anemia. In the disease, the red blood cells comprise an abnormal form of the oxygen-carrying protein hemoglobin.
Generally, humans comprise hemoglobin A, A2, and F types. Of the three types, the hemoglobin F dominates till the age of 6 weeks, after which hemoglobin A dominates till the end of life. However, in the persons diagnosed with SCA, at least one of the beta-globin subunits in hemoglobin A gets substituted by a different form known as hemoglobin S. In the disease, a single nucleotide mutation in the beta-globin gene takes place, in this at 6th position, the glutamic acid gets replaced by Valine.
You decide to halve the time you spend in the shower each day and to turn off the water while you’re brushing your teeth and washing your face at the sink. Evaluate the effect that these actions might have onto different aspects of the water cycle if every person in your neighborhood also performed them.
Answer:
Decreasing the consumption of water helps to maintain the fresh waters of our planet, the less we consume the less quickly they will end.
If we abuse fresh water, one day the planet will end and the salt water from the seas will have to be filtered, which is much more expensive and more polluting.
Explanation:
In addition, we must bear in mind that the less we use the water, the less we will contaminate it with chemicals such as shampoos, rinse creams, soap, therefore less water will end up in the non-recyclable water cycle.
All the water we use will end up being polluted and will not enter the natural cycle of water from river rainfall, irrigation and evaporation in the skies.
Which of the following represents molecular genetics?
A. Mapping out the genes and DNA in a human with the Human Genome project
B. Splicing the gene for human insulin into bacteria to produce insulin faster for diabetics.
C. Using genetic principles to calculate the probability of different traits showing up in the offspring when two individuals mate.
D. Simulating the rate of change in the deer populations due to the spread of blue tongue disease
Answer:
I think the correct answer is of letter A.
. Which biomolecules do not function in supporting a cell?
Answer:
Generally the primary organic molecules in cells which support the metabolic and biochemical process of the cells are bio molecules Theses are Carbohydrate
Protein
Lipids
and Nucleic acids of DNA and RNA. They can also be the minute hormones and metabolites present in the cells.
Generally, CHO provide structural supports to the cells,and acts as sources of energy.
Protein forms most enzymes for biochemical reactions,and aids movements, through muscle contractions. Besides,muscles are made of protein.Therefore protein forms the structural basis of the muscles.This aids movement and locomotion for support.
Lipids are the richest source of energy for the cell,and provides support the cells membrane.
The nucleic acids,are primary concerned with the transfer of inheritable characteristic from mother cells to the daughters during reproduction.While the DNA is the genetic information been transferred,the RNA is the vehicle for transmission of the genetic information as protein from the parents' nucleus to the offspring. Thus the nucleic acid roles it for transmission of genetic information as genes,(DNA) and translation of these genes as proteins(RNA).Hence,Nucleic acids does not participate in the cells' support.
Therefore
Explanation:
Answer:
Nuclei acids do not function in supporting a cell
a beaker cannot be used for measuring the volume of a liquid because
Answer:
Beakers should not be used for measuring a liquid's volume because beakers can be inaccurate. For example, they are typically accurate within 5 percent. Beakers should only be used for approximating volume.
A better choice for accurate volume would be a graduated cylinder, since they are accurate within 1 percent. The best options are pipets, burets and volumetric flasks. All three are accurate within less than 0.2%.
Essentially, beakers are not precise, and therefore should not be used for measuring the volume of a liquid.
A specific location in America produces electricity only from fossil fuels and geothermal energy. The table below shows the amount of methane in the atmosphere of the location from 1960 to 2000. Based on the table, which of these conclusions is most likely correct about the period between 1980 and 1990? Electricity was generated only from fossil fuels. Electricity was generated only from geothermal energy. Several fossil fuel units were replaced by geothermal units. Several geothermal units were replaced by fossil fuel units.
Answer:
Several fossil fuel units were replaced by geothermal units.
Explanation:
Though geothermal units also release methane - along with several other pollutants - they release FAR less than a fossil fuel plants.
From the table we can conclude that, several fossil fuel units were replaced by geothermal units.
What is fossil fuel?
A fossil fuel is a non renewable energy obtained from hydrocarbons. This type of energy source releases lots of green house gases into the atmosphere.
The energy obtained from geothermal energy is clean and does not release green house gases into the atmosphere.
Thus, from the table we can conclude that, several fossil fuel units were replaced by geothermal units.
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In a plant cell wall the layer that is between a membrane, adding additional protection and support; not found in all plant cells.
a. True
b. False
Answer: SECONDARY CELL WALL.
Explanation: When cell wall grow,it becomes thickened,then it further deposits new layers of a different material (different from that of the primary cell wall) from where secondary cell wall is formed.
This secondary cell wall is made up of cellulose,hemicellulose,and lignin.
They function in providing additional strength,support, rigidity to cells and the larger plant.
Answer:
The correct answer is "secondary cell wall".
Explanation:
The secondary cell wall is an structure found in many type of plants, located right after the primary cell wall and before the plasma membrane. The secondary cell wall is made mainly of cellulose, as well as other elements such as polysaccharides, lignin, and glycoproteins. Secondary cell walls are present in tracheary elements and within the fibers of primary xylem and the secondary xylem.
The number of possible chromosomal orientations during metaphase I is equal to the number of chromosome pairs raised to the 2nd power.
A. True
B. False
Answer:
A
Explanation:
The statement is entirely true.
During metaphase 1 of meiosis, each tetrad - a chromosome consisting of 4 chromatids - formed in prophase has 2 possible orientations. Hence, the total number of possible chromosomal orientations would be 2 raised to the power of the number of chromosome pairs present in the cell.
For example, humans have 23 pairs of chromosomes in each of their cells, hence, the total number of possible chromosomal orientations would be [tex]2^{23}[/tex] which is equal to 8,388,608 possible orientations.
The correct option is A.
During which stage of the drawing in phase should the ability waiver be signed?
A. Stage 1
B. Stage 3
C. Stage 2
D. Stage 5
Answer:
The correct answer is - option A. stage 1.
Explanation:
Drawing in phase is a process that make sure for better client motivation and establishes an individual as a professional. There are five stages of drawing in phase.
Stage 1 is the stage that involves the establishment process of an individual as professional by through understanding his craft, sincerity for the work, client rapport, maintaining integrity and enthusiasm for the work and craft.
Thus, the correct answer is - option A. stage 1.
What is the difference between cell and organelle?
Answer:
An organelle (think of it as a cell's internal organ) is a membrane bound structure found within a cell. Just like cells have membranes to hold everything in, these mini-organs are also bound in a double layer of phospholipids to insulate their little compartments within the larger cells.
Explanation:
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Which of the following relies on amolecule binding to the repressor to prevent the repressor from binding to the operator?
a. repression
b. gene expression
c. an operon
d. induction
Answer:
d. induction
Explanation:
A repressor is a protein capable of inhibiting target gene expression by binding to both operator sites and gene silencers. A DNA-binding repressor inhibits the interaction between the RNA polymerase and the DNA promoter sequence, thereby suppressing transcription into RNA. Moreover, the RNA-binding repressor is a protein that binds to the messenger RNA (mRNA) molecule in order to prevent its translation into protein. An inducer can start transcription by interacting with the repressor, thereby separating it from the DNA operator sequence.
When determining if the data accepted
or rejected your hypothesis, you are
A. Drawing conclusions
B. Asking questions
C. Summarizing the results
D. Forming a hypothesis
Answer:
c
Explanation:
When determining if the data accepted or rejected your hypothesis, you are summarizing the results.
What is a hypothesis?Hypothesis testing is a scientific process of whether to accept or decline the statement. There are two types of hypothesis null hypothesis and alternative hypothesis.
If P value is less than the alpha then null hypothesis is rejected. If P value is greater than alpha then null hypothesis is not rejected. The level of significance is often called p value.
If we want to reject the null hypothesis, we need to follow given steps:
State the null hypothesis.Support or reject a null hypothesis.Find the critical valueFind the p value.Therefore, When determining if the data accepted or rejected your hypothesis, you are summarizing the results. Option C is correct.
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Help please give me a list of prokaryotes i will give you 30 POINTS if you help me
Answer:
Escherichia coli bacterium, Streptococcus bacterium, Sulfolobus acidocaldarius archeobacterium, streptococcus pyogenes, lactobacillus acidophilus, Cyanobacteria, Archaea. Do you need more?
In what Scripture does God tell us that plants are for the needs of people and animals?
•John 3:16
•Isaiah 6:12
•Genesis 1:29-30
•Matthew 5:5
Answer:
genesis 1;29-30 God told Hebrew "See, I give you every seed-bearing plant that is upon all the earth,and every tree that has seed-bearing fruit; they shall be yours for food, explanation:
look it up in the bible or bible requst
Fats are absorbed by the epithelial cells of villi in the intestinal tract and enter the capillary beds of the circulatory system.
a) true
b) false
Answer:
This statement is False.
Because Fats are digested and absorbed In Small Intestine.
The fats should be digested and absorbed in the small intestine. So, the given statement is false.
What is fat?In terms of nutrition, biology, and chemistry, fat defined the fatty acids or it should be comprise of the compounds that should be arise in the living being or in the food. Since fats should not be absorbed via the epithelial cells of villi in the intestinal tract also not entered into the capillary beds of the circulatory system.
Therefore the given statement is false.
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The shrimp in the photograph are small crustaceans, related to lobsters and crabs. Two shrimp. Photo by Russ Hopcroft, courtesy of the NOAA Which specialized carbohydrate is used in shrimp exoskeletons? cellulose glucagon glycogen chitin
Answer:
Chitin
Explanation:
This glucose derivative is in fact the main building block of cell walls in not only arthropods (including the shrimp), but also fungi and insects, and also has a structural function in the scales of fish. The most similar commonly-known substance in terms of function is keratin, which makes up our hair and nails.
Answer:
chitin
Explanation:
trust me.... choose me... love me...
: )
Your friend does not believe in the theory of evolution—specifically because he does not believe that life originated from organic molecules that came together in a primordial soup. As someone who has studied the theory of evolution, how might you respond to his objections
Answer:
Answered below
Explanation:
In the 1920s, Russian Chemist A.I Oparan and English geneticist Haldane, first conceived and developed independently, the theory of Primordial soup. The primordial soup theory suggests that life began in a pond or ocean as a result of the combination of the right amounts of chemicals from the atmosphere and some form of energy, under the right conditions, which resulted in the production of amino acids, the building blocks of proteins from which life evolved. This is suggested to have happened 3 to 4 billion years ago.
This theory was tested by Chemist Stanley Miller and Physicist Harold Urey, in 1950. They mixed gases thought to be present in the primitive earth and electrically sparked the mixture, which resulted in the formation of amino acids.
sea turtles are what kind of vertebrae
Answer:
Reptiles
Explanation:
Snakes, lizards, turtles, crocodiles, and birds are reptiles.Reptiles are vertebrates that have scales on at least some part of their body, leathery or hard-shelled eggs, and share a number of other features
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If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition? A. both males and females B. only males C. neither males nor females D. only females
Answer:
C
Explanation:
Neither males nor females
which of the following best describes the role of an enzyme in living organisms
Answer:
They cause DNA to replicate. They denature each other. They are molecules made of amino acids that speed up chemical reactions by lowering the activation energy.
The statement that best describes the role of an enzyme in living organisms is enzymes always break down substrates into monomers during a reaction. The correct option is c.
What are enzymes?
Enzymes are proteins that increase the rate of the reaction. In the human body, enzymes are used to break down food molecules. Enzyme inhibitors are biological or chemical substances that bind to an enzyme's active site and prevent the enzyme from performing its activity.
The fundamental structure of a polypeptide chain refers to this arrangement of amino acids. This in turn dictates the enzyme's three-dimensional structure, including the active site's shape.
Therefore, the correct option is c, Enzymes always break down substrates into monomers during a reaction.
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The question is incomplete. Your most probably complete question is given below:
Enzymes raise the activation energy required to start a reaction. Enzymes work as catalysts to speed up the rate of a reaction.
Enzymes always break down substrates into monomers during a reaction.
Enzymes work as catalysts to slow down the rate of a reaction.
What type of bond involves the sharing of electrons?
Answer:
Covalent bond involves sharing of electrons.
In a car accident, Jane suffered a chest injury that resulted in impaired breathing and respiratory acidosis. How will her body compensate for this imbalance?
a) kidneys eliminate bicarbonate ions.
B) kidneys retain bicarbonate ions.
c) kidneys retain hydrogen ions.
d) kidneys eliminate carbon dioxide.
Answer:
B) kidneys retain bicarbonate ions
Explanation:
Respiratory acidosis involves the inability of the lungs to remove the Carbon dioxide in the body which result in the blood being acidic.
Jane was said to suffer a chest injury that resulted in impaired breathing and respiratory acidosis. Her body will compensate for this imbalance through the kidneys having the ability to retain bicarbonate ions. This helps to reduce the acidity as the ions are alkaline in nature.
During glycolysis, ATP is produced when 1,3 bisphosphoglycerate transfers a phosphate to ADP forming ATP. This is an example of ________. Group of answer choices
Answer:
This is an example of substrate-level phosphorylation.
Explanation:
There is oxidative phosphorylation and there is substrate-level phosphorylation. The question gives an example of substrate-level phosphorylation which describes the formation of ATP from other molecules such as ADP or GTP.
I hope this answer helps.
which best describes what happens to stop during photosynthesis
Answer:
it dosent stop
Explanation:
yes which best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesiswhich best describes what happens to stop during photosynthesis
A hiker is lost in the woods with no food for several days. As a result, the hiker develops a ketoacidosis which has lowered their blood pH. Which of the following will occur as a homeostatic response to this disturbance in pH?
a. an increase in ventilation and an increase in blood carbon dioxide.
b. an increase in ventilation and a decrease in blood carbon dioxide.
c. a decrease in ventilation and an increase in blood carbon dioxide.
d. a decrease in ventilation and a decrease in blood carbon dioxide.
Answer:
Option D is the correct answer! IG ;)
Explanation:
Hope it helped and is correct!
An increase in ventilation and a decrease in blood carbon dioxide. So, the correct option is (B).
What is Ketoacidosis?Ketoacidosis is defined as a severe diabetes complication where the body produces excess blood acids known as ketones. This condition occurs when there is not enough insulin in the body which can be triggered by infection or other disease.
The symptoms which include thirst, frequent urination, nausea, abdominal pain, weakness, fruity-smelling breath and confusion. There are a number of hospital treatments to replace fluids and electrolytes and insulin therapy may need to be provided.
During hiking, an increase in ventilation and a decrease in blood carbon dioxide will occur as a homeostatic response to this disturbance in pH, leading to ketoacidosis.
Thus, an increase in ventilation and a decrease in blood carbon dioxide. So, the correct option is (B).
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Which trait is deliberately selected for when breeding persian cats
Answer:An even-tempered cat, the Persian is known to enjoy a sunny window and show sudden bursts of kitten-like energy.
Persian At a glance
The Persian Cat Breed
The Persian is not known for a high degree of energetic exercise, so attention must be paid to weight management.
Weight range:
Male: large: >12 lbs.
Female: medium: 8-12 lbs.
Eye color:
Blue, Copper, Green, Hazel, Odd-eyed
Expectations:
Longevity Range: 8-11 yrs.
Social/Attention Needs: Moderate
Tendency to Shed: High
Coat:
Length: Long
Characteristics: Silky
Colors: White, Red, Cream, Black, Blue, Chocolate, Lilac, Silver, Golden, Cameo, Tortoiseshell, Blue-cream, Brown, Calico, Seal
Pattern: Solid Color, Tortoiseshell, Bicolor, Tricolor/Calico, Tabby, Smoke,
Explanation: