1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
krok68 [10]
4 years ago
15

Why is it that some organisms do not appear to be perfectly adapted to their environment?

Biology
1 answer:
Klio2033 [76]4 years ago
4 0
No population or organism is perfectly adapted. ... The population or individual does not "want" or "try" to evolve, and natural selection cannot try to supply what an organism "needs." Natural selection just selects among whatever variations exist in the population. The result is evolution.
You might be interested in
I need the answer for this
saul85 [17]
I think that u need to use the book because it said which part from number 3? not sure tho<span />
7 0
3 years ago
What is the answer please someone answer fast I need it
gizmo_the_mogwai [7]
I believe the answer would be B I think sorry in advance if im incorrect 
7 0
3 years ago
Read 2 more answers
Damian spends an evening babysitting for a neighbor. Damian uses four different toys to keep the children occupied. He notices t
OLEGan [10]
I almost wanna say the orange red green blue thing because that's what it looks like but maybe you'll get an answer from this

5 0
3 years ago
Key deer are found only on certain islands in the Florida Keys. Populations are typically small enough that genetic drift has ca
vagabundo [1.1K]

Answer:

The frequency of A1 be on Big Pine Key after a single generation of migration from No Name Keyp is 0.2276

Explanation:

Whenever it occurs migration between two populations, there is genetic flux going on. Genetic flux might be considered as an evolutive strength only if migration > 0 and if the allelic frequency in one generation is different from the allelic frequency in the next generation.  

Genetic flux acts homogenizing the allelic frequencies between the two populations, and it might introduce variability.

By knowing the allelic frequencies in both populations at a certain time and the migration rate, we can calculate the allelic frequencies of populations in the next generation. This is:

pA₂=pA₁(1-m)+pB₁ m

pB₂=pB₁(1-m)+pA₁ m

Being

  • A one population and B the other population
  • pA₁ and pB₁ the frequencies of the p allele before migration,
  • pA₂and pB₂ the frequencies of the p allele after migration,
  • m the migration rate

In the exposed example, we know that:

  • No Name Key population allelic frequency: A1 = 0.43 and A2 = 0.57
  • Big Pine Key population allelic frequency: A1 =0.21 and A2 = 0.79
  • Migration rate m=0.08

Let´s say that p represents A1 allele, and q represents A2 allele.

The frequency of A1 allele (p) be on Big Pine Key (Population B) after a single generation of migration from No Name Key (Population A)

pB₂=pB₁(1-m)+pA₁ m

pB₂=0.21 x (1 - 0.08) + 0.43 x 0.08

pB₂= 0.2276

The allelic frequency in a population after one generation is the allelic frequency of individuals of that population that did not migrate (21 x  (1 - 0.08) plus the allelic frequency of the new individuals that came from the other population (0.43 x 0.08).

You can corroborate your result by calculating the q allele frequency in the next generation and summing both of them up. The result should be one.

qB₂= qB₁(1-m)+qA₁ m

qB₂= 0.79 x (1 - 0.08) + 0.57 x 0.08

qB₂= 0.7724

p + q = 1

0.2276 + 0.7724 = 1

7 0
3 years ago
Which statement is true regarding the two beakers and the contents of each?
alexandr1967 [171]

Answer:

a

Explanation:

8 0
3 years ago
Other questions:
  • This diagram shows that embryos of certain species develop almost identically in the earliest stages of embryonic development. T
    10·1 answer
  • Adolescents experience a shift in ___________ that delays the body's time to sleep
    5·1 answer
  • One reason native plants are declining is that the invasive plants absorb nitrogen from the soil about twice as fast (α = 2). Ho
    12·1 answer
  • What would be the priority when caring for a primigravid client whose cervix is dilated at 8 cm when the fetus is at 1+ station
    9·1 answer
  • ) Glycogen is A) the form of carbohydrate that is stored in liver and muscle tissue. B) a polysaccharide made by plants. C) the
    10·1 answer
  • What are animals whose body temperature is regulated mainly by internal bodily processes called?
    10·1 answer
  • How do rabbits gain energy?
    5·1 answer
  • Something which has to do with drawling is referred to as
    14·1 answer
  • The graph shows the size of two populations of the same species over time.
    13·2 answers
  • In the case of a tick feeding off a deer, the deer would be considered _____ and the tick would be considered _________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!