9
A population of deer live in a forest ecosystem. Which of these describes a density-independent factor that could affect this
population?
Answers
A forest fire or severe weather event could be a density-independent factor that could affect the population of deer in the forest ecosystem.
These factors are not influenced by the density of the deer population but rather are external factors that can impact the entire ecosystem and all of its inhabitants. Other examples of density-independent factors could include natural disasters, climate change, or human disturbances such as logging or pollution. Examples of density-independent factors include natural disasters (e.g., wildfires or floods), extreme weather conditions (e.g., drought or heavy snowfall), and human-induced habitat changes (e.g., deforestation or pollution). These factors affect the deer population in the forest ecosystem without being influenced by the population density of the deer.
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Related Questions
which is not one of the dna sequences known to regulate eukaryotic gene transcription by rna polymerase ii? group of answer choices terminator sequence enhancer sequence origin of replication core promoter
Answers
The dna sequences known to regulate eukaryotic gene transcription by rna polymerase ii will be " origin of replication".
Promoter sequences were DNA sequences that specify the starting point of an RNA polymerase-mediated transcription of such a gene. The 5' terminus of the transcription start site or immediately upstream are the traditional locations for promoter sequences.
Enhancers were regulatory DNA segments of gene expression which increase a promoter's activity without regard to position, orientation, or distance. In eukaryotic organisms, these sequences are essential for controlling the expression of genes that are specific to particular tissues.
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Blood supply to an arm is cut off. Blood in the arm is sampled after five minutes and analyzed. Which of the following would occur?
Answers
If blood supply to an arm is cut off, the arm would become ischemic, which means that there would be no blood flow to the tissues in the arm, which could lead to tissue damage or death and after five minutes, the blood in the arm would have decreased oxygen levels, increased carbon dioxide levels, increased acidity, and decreased pH.
The correct option to the given question is option d.
If blood supply to an arm is cut off, the arm would become ischemic. The absence of blood supply means that the cells in the arm would not receive oxygen or nutrients, which are essential for cell function and survival.
After five minutes, if blood in the arm is sampled and analyzed, the following changes would be observed:
Decreased oxygen levels: Since blood is not flowing to the arm, oxygen levels in the blood would decrease. This would lead to hypoxia, which is the condition of not having enough oxygen to meet the body's needs.
Increased carbon dioxide levels: As oxygen levels decrease, carbon dioxide levels in the blood would increase. Carbon dioxide is a waste product of cellular metabolism, and it is normally carried away by the blood to be exhaled by the lungs. If blood flow is cut off to the arm, carbon dioxide would build up in the tissues.
Increased acidity: When cells are deprived of oxygen, they switch to anaerobic metabolism, which produces lactic acid. The accumulation of lactic acid in the tissues would lead to an increase in acidity.
Decreased pH: As a result of the increased acidity, the pH of the blood would decrease. pH is a measure of how acidic or alkaline a substance is. A lower pH indicates higher acidity.thus, correct option is d.
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9. A finch population has genetic diversity. Some of the finches have an allele that gives them
longer beaks. Due to pollution, the ecosystem changes and seeds become harder to find. The
finches with long beaks can dig the seeds out more easily than the finches with short beaks.
a) Which type of bird is selected for in the polluted ecosystem?
b) How will the allele frequency change in the finch population?
c) is this an example of natural selection explain
Answers
Answer:
A) the finch with the longer beak
B) the allele will continue to become more prominent as the smaller beak birds die off
C) Yes, the birds with the longer beaks will continue to live on because the birds with the smaller beaks can’t find the seeds as easily.
Explanation:
Seeds are harder to find, so finches with larger beaks get selected in a polluted environment. This is a natural selection. If this continues, then the alleles for short beak will vanish.
What is natural selection?
Natural selection is a process in which nature selects an organism that can fit well. If an allele is selected in a population and present for a longer time, then it replaces other alleles in that population. Example: In a population, both short-beaked and long-beaked finches are present.
Due to pollution, long-beaked finches are able to find more seeds than short-beaked finches. Here, nature favors long-beaked finches over short-beaked finches. If this continues for a longer generation, then alleles for the short beak will vanish. Only alleles for long beaks will be in the population.
Hence, long-beaked finches are selected. It is an example of natural selection. The allele frequency of the long beak will increase while decreasing for the short beak.
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The tallest building in the world. the Burj Khalifa in Dubai, is 0.828 kilometers high, What is the building's height in centimeters?
Answers
Answer:
82,800 Centimeters
Explanation:
Agree or Disagree?
Energy from the sun warms the atmosphere directly
Need ASAP.
Answers
How many amino acids would be coded for with 42 nucleotides?
Answers
explanation
Salt in soil may affect plant growth. Independent variable: ?
Dependent variable: ?
Hypothesis: If ____ Then ____ Because.
Answers
Answer:
Dependent variable because it is a possible result of what isn't changed
Al is analyzing the musculature involved in the athletes he coaches. Today he is observing a basketball player executing a jump shot. Which muscles are involved at the hips, knees, and ankles as the athlete jumps? which muscles are involved at the shoulders, elbows, and wrists as the athlete shoots the basketball?
Answers
Muscles of the hips and ankles are involved at the hips, knees, and ankles as the athlete jumps. The muscles of the arm, forearm, and hand are involved as the athlete shoots the basketball.
When landing from a jump, the muscles of the hips (gluteals), knees (quadriceps and hamstrings), and ankles (calves) that increase jump height are just as important. The flexors of the arm (anterior deltoid, biceps, coracobrachialis), forearm (brachialis), and hand during the handling phase, as well as the extensors (triceps) and pronators (pronator teres) of the forearm during the finishing stage of the shot, are the primary muscle groups of the upper limb that intervene during the action of the shooting. Until the player does not bend, the lower limb muscles contract isometrically and work concentrically (knee flexors) during the bending step.
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If the original mass of Carbon 14 was 24grams, how many grams would be left after 4 half lives?
Answers
Answer:
Explanation:
After for half lives have passed, how much of the original sample will be left? ... If one half-life (50 %) of the original carbon-14 is left in a material, ...
Which process is represetned by the arrow in the diagram?
Energy Available
for Use by
Living Organisms
Energy
Stored in
Food
a)
growth
b) respiration
c) regulation
d) photosynthesis
Answers
Answer:
photosynthesis
Explanation:
photosynthesis is the process by which food is gotten from the sun
identify the parts of this food chain. the sun produces provides the energy for grass to grow. a grasshopper eats the grass. a bird swoops down and eats the grasshopper. a bobcat captures and eats the bird. mushrooms breakdown the bobcat when it dies.
Answers
The food chain consists of the following parts: sun, grass, grasshopper, bird, bobcat, and mushrooms.
The food chain begins with the sun, which provides the energy for the grass to carry out photosynthesis and grow. The grasshopper then feeds on the grass, obtaining energy and nutrients from it.
Next, a bird preys on the grasshopper, consuming it as a source of food. The bird, in turn, becomes the prey for a bobcat, which captures and consumes the bird to meet its energy needs.
The food chain does not end with the bobcat. When the bobcat dies, mushrooms come into play. Mushrooms are decomposers, which means they break down dead organic matter.
In this case, the mushrooms break down the remains of the bobcat, aiding in the process of decomposition. They help break down the organic materials and return nutrients back to the soil, completing the cycle.
Thus, the mushrooms play a crucial role in recycling the nutrients from the dead bobcat back into the ecosystem, sustaining the food chain and supporting the growth of other organisms.
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2. Most mutations are "silent." What does this mean?
Answers
Explanation:
Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein.
Sample Response: When there is less rainfall, land,
which is part of the geosphere, becomes dry. When there
is not enough water, plants will not get the nutrients they
need from the soil and animals will not get enough water,
and they will die. Both plants and animals are part of the
biosphere. Less precipitation would also mean less water
in lakes and groundwater, parts of the hydrosphere, and
less evaporation. The atmosphere may also be affected
due to less water vapor.
Which ideas did you include in your answer? Check all
that apply.
Droughts can cause the geosphere to be very dry.
Droughts can affect the survival of organisms in the
biosphe.
Droughts can affect the amount of water in the
hydrosphere.
Droughts can affect the amount of water vapor in the
atmosphere.
Answers
Answer: there is no correct answer to this question i just took the test and the answer is whatever you want to answer
Explanation:
just took it on edg 2020
When there is less or no rain than expected it will lead to draughts.
Draughts:When there is less rainfall all the parts and organisms of the earth get affected. Water is an essential component of life. Less rainfall leads to the scarcity of water on the earth.
Farmers will not get enough amount of water for farming, groundwater levels also get affected. Plant and animal life also gets affected, and this affects the survival of organisms. Draughts can also affect the amount of water in the hydrosphere.
Food, fruits, and vegetables also get reduced because of less amount of rainfall. Therefore good rain is essential for the lives of the plants and animals. This is important for the survival and the good life of the organism.
Therefore, When there is less or no rain than expected it will lead to draughts.
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baby weston's digestive system did not fully develop and does not function properly. this problem likely arose from a defect in the formation of
Answers
Baby Weston's digestive system is not functioning properly due to a defect in its formation leading to a malformed or underdeveloped digestive system. This is a serious condition that affects the ability of the body to properly digest and absorb nutrients from food.
The digestive system is a complex network of organs and structures that work together to break down food, absorb nutrients, and eliminate waste.The formation of the digestive system begins early in fetal development, with the formation of the gut tube, which eventually develops into the stomach, small intestine, and large intestine. During this process, the gut tube must properly divide and form into distinct structures, such as the stomach and small intestine.
In Baby Weston's case, there was a defect in this process, leading to a malformed or underdeveloped digestive system.This defect can result in a variety of symptoms, including difficulty swallowing, vomiting, abdominal pain, and malnutrition. In severe cases, it may also lead to complications such as bowel obstruction, infection, and even death. In Baby Weston's case, the malformed digestive system is likely causing poor nutrient absorption and poor growth.
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at what level does natural selection occur?
Answers
Answer:
The hierarchy of selection. We most typically think of natural selection working at the level of the individual, favoring those better at leaving behind more individual descendants. However, with a little imagination, we can see how natural selection might work at other levels of biological organization as well.
Explanation:
what do radio waves carry?
Answers
Answer:
soundddddddddddddddd
Please help me!! I need this till the end of the day!!
Answers
A trait that is sex-linked is present on one of the sex chromosomes and is inherited according to the animal's sex. Depending on the gender of the relevant animals.
How are qualities handed down according to Mendelian genetics?According to this Mendelian principle, whether a trait will be inherited depends on how these units are transmitted. Each parent contributes two genes to each individual, making them the source of one gene for each attribute. The alternative versions of these units are now referred to as "alleles".
How are sex-related features passed down?Sex-related illnesses are inherited via one of the sex chromosomes, the X and Y chromosomes. When a faulty gene from one parent can lead to a disease, this is known as dominant inheritance.
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How might biodiversity be important to an ecosystem’s health and stability?
Answers
Ecosystems with higher biodiversity are more stable as they can easily adjust to changes. They also have fewer species that depend on just one another for food, shelter and maintaining their environment
HURRY ITS URGENT
What is the atomic number of an atom that has 29 protons, 35 neutrons in the nucleus?
options:
64
29
cannot determine from information given
35
Answers
Answer:
29
Explanation:
atomic number is found from the number of protons
Can someone help me answer this please ( be fast because this is due in five minutes)
Answers
Answer:
The first question is the third option. I do not know the second.
Explanation:
Answer:
1. only when both alleles are recessive
2. crossing over of chromosomes during prophase
Describe why certain traits increase in frequency in a population. Provide ONE example to support your response. Need to give an example of a specific animal or plant that this occurs in!!!!!
Answers
Natural selection is a powerful force that drives the evolution of many different traits in populations.
Why do certain traits increase in frequency in a population of organisms?Certain traits increase in frequency in a population due to the process of natural selection.
Natural selection is a mechanism of evolution in which individuals with certain advantageous traits are more likely to survive and reproduce than those without the traits, leading to an increase in the frequency of the advantageous traits in the population over time.
For example, the evolution of antibiotic resistance in bacteria is a clear example of natural selection at work. Antibiotic resistance arises when some bacteria in a population develop a genetic mutation that allows them to survive exposure to an antibiotic, while other bacteria without the mutation are killed. The resistant bacteria then reproduce and pass on the resistant trait to their offspring, leading to an increase in the frequency of the resistant trait in the bacterial population.
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Use this dichotomous key to identify the taxonomic order of each insect. (Hint: All of the insects belong to different orders). The information for the first insect has been completed for you.
Answers
Answer:
Explanation:
not 100% sure, but I just did it and this is pretty close if not right
Answer:
Same thing as the other person...
TRUE/FALSE.Late in puberty, the sex hormones signal the growth plate of a bone to stop growing; once this happens, the bone cannot get longer, but it can grow in width.
Answers
The sex hormones tell a bone's growth plate to stop developing towards the end of adolescence; after this point, the bone can only grow in breadth. This statement is true.
Towards the end of puberty, these hormones signal the growth plates, also known as epiphyseal plates, to close. The growth plates are areas of cartilage located at the ends of long bones, and they are responsible for longitudinal bone growth.
When the sex hormones signal the growth plates to close, it signifies the end of bone lengthening. Once the growth plates are closed, the bones reach their final length, and they cannot grow longer. However, it's important to note that bones can continue to grow in width, a process known as appositional growth. This occurs through the deposition of new bone tissue on the outer surface of the existing bone, increasing its diameter.
While bone lengthening ceases in late puberty due to the closure of growth plates, bone remodeling, and adaptation can still occur throughout life in response to mechanical stress, hormonal changes, and other factors.
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explain how genetic drift arises from sampling effects in finite populations. explain how genetic drift affects allele frequencies and why the intensity of those effects depends on population size.
Answers
In the absence of natural selection, genetic drift leads to alleles becoming fixed in a limited population during the course of evolution. Allele frequency and their magnitude are influenced by genetic drift.
Genetic drift, also known as allelic drift or the Wright effect, is a shift in a population's frequency of an existing gene variant (allele) brought on by chance. Genetic drift, may totally vanish due to genetic drift, hence reducing genetic variation.
The frequency of an event is its repetitions per unit of time. As a contrast to spatial frequency, it is also sometimes referred to as temporal frequency, and as a contrast to angular frequency, it is sometimes referred to as ordinary frequency.
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which of the following statements are true about sister chromatids? choose 1 answer: choose 1 answer: (choice a) a they each contain different alleles. (choice b) b they are tightly connected at the centromere. (choice c) c you get one from your mother and one from your father (choice d) d when attached, they are considered two chromosomes
Answers
The true statement about sister chromatid is: (b) they are tightly connected at the centromere.
Chromatid is the part of the chromosome that has a long thread-like appearance. there are two chromatids in one chromosome and they are denoted as sister chromatids. Each chromatid is the house for certain genes.
Centromere is the region of the chromosome where the two sister chromatids attach together. These are the constructed regions of the chromosome. Centromere is also the region for the attachment of spindle fibers during the process of cell division. Spindle fibers do not attach directly to the centromere instead attach via a protein called kinetochore.
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The illustration shows a pedigree with an autosomal recessive mutation.
What is the possibility that the male in the F 2 generation will express the mutation?
70%
25%
100%
50%
Answers
Answer:
50%
Explanation:
Sana makatulong
ASAP HELP!!! PLEASE ANSWER THIS!!! I GIVE COINS!!! I GIVE BRAINLIEST TOO!!!!
Which ecosystem has the greatest biodiversity?
Answers
Answer:
Ecosystem A.
Explanation:
I believe that this is the most diverse
Explanation:
I believe that this is the most diverse
Which of the following is not a factor that is required for the formation of hurricanes?
A: Very high winds in the upper atmosphere
B: Ocean temperatures of atleast 80 degrees F
C: Low winds in the upper atmosphere
D: Warm, moist air
Answers
Answer:
Either A or C
Explanation:
Answer:
Hurricanes start with warm and cool climates for them to start. The stronger the climate, the stronger the hurricane is going to be. The winds are very high, going from a category 1, where it does damage bur not a lot, to a 5, where damage is really bad in some areas. So, your correct answer is C because in the hurricane, there needs to be high winds for it it become a hurricane
Explanation:Please give Brainlyest
This mechanism of evolution occurs when individuals migrate between populations, and increasing genetic diversity or variation
O extinction
O gene pool
O gene flow
O genetic drift
Answers
Answer:
The answer is gene flow..
I am holding $2 in dimes and quarters. There are 11 total
coins in my hand. How many are dimes and how many
are quarters?
Answers
Answer:
4 quaters and 2 quaters make up 50 cents then with the dimes you should have 5 dimes making it also 50 which also equals a dollar leaving you with 2 dollars
Explanation:
;)
Answer:
six quarters. five dimes