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Marta_Voda [28]
4 years ago
6

Describe two prerequisites for determining population size or density (# indiv / area) and potential challenges?

Biology
1 answer:
zaharov [31]4 years ago
4 0
<span>To determine population size one must have an effective way to count individuals in a given area. This can be challenging since individuals move and may be accounted for multiple times, therefore skewing the final results. Population density requires one to also calculate the area in which the population resides. This is relatively simple to do, but if individuals then exit or enter the calculated area, then the population density changes.</span>
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Imagine that smurfs live in widely separated groups and rarely interbreed, so geneticists know very little about them. On one oc
Keith_Richards [23]

Hello! Your answer is A, blue is dominant to white.

A dominant gene means that it is always expressed if present, no matter what other genes there are. For example, if there is a dominant blue gene, and a recessive red gene, blue will be expressed.

In this case, we see that all three children are blue. This shows that blue is most likely dominant, and white is recessive.

Let's approach the other case, that white is dominant to blue. If white is dominant, then the blue smurf must have two blue recessive traits, and the white smurf would either have two white dominant traits, or one white and one blue trait. The only possible way the children can have a blue color is if the white smurf is heterozygous (meaning it has two different genes, in this case one blue and one white), and passes down the recessive gene three times. As you can see, this is very unlikely.

If white and blue are codominant, then the children would have a mixture of the two genes. (Most likely). This is not the case.

Therefore, your answer is A.

Hope this helps!

5 0
4 years ago
A ___________ is the smallest unit of life?
ohaa [14]

Answer:

Cell

Explanation:

A cell is the smallest unit of a living thing.

6 0
3 years ago
Read 2 more answers
a rock is dropped from a height of 60 m and is in free fall. What is the velocity of the rock as it reaches the ground 3.5 secon
oksian1 [2.3K]

Data given

                 Initial Velocity = 0 m/s  

                 Change in distance x = 60m  

                 Change in time = 3.5s

                Acceleration due to gravity = -9.81 m/s^2  

Required

               Final Velocity (vf) = ?  

Solution

             According to first equation of motion

             Vf = Vi+gt  

             Put the values, we will get

              Vf = 0 + (-9.81) (3.5)  

             -34.3 m/s (Answer)


7 0
4 years ago
A gene has the base sequence of CGT AT gave an example of a frame shift mutation on this gene
Inessa05 [86]
A frameshift mutation is a mutation which changes the sequence read and transcribed by the ribsome, also presenting the possibility of coding for the wrong amino acid. You can have two types; frameshift substitution or frameshift deletion. In a substitution, a mutation occurs, adding a new basepair and shift the sequence read to the right. In a deletion, a mutation deletes a base pair and moves the sequence read to the left.

frameshift substitution: CGG TAT
frameshift deletion: CTA T
7 0
4 years ago
Critical thinking includes the analysis of evidence. (points : 1) true false
enot [183]
 <span>False is a statement to a person or group made by another person or group who knows it is not the whole truth, intentionally.</span>
3 0
4 years ago
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