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Naddika [18.5K]
3 years ago
14

According to the International Union for Conservation of Nature (IUCN) giraffe numbers across the continent of Africa fell 40% b

etween 1985 and 2015. The main threats to the giraffe population include a shrinking habit, conflict, and poaching. Checking the data, we see that while four subspecies have declining populations, four subspecies have growing populations. This is a modern-day example of natural selection at work. What elements of natural selection are at work here? A) Environmental conditions reduce the population numbers; only the fittest subspecies are able to survive. B) Overpopulation exists in a shrinking habitat; some subspecies decline in number; differential reproduction occurs. C) The death rate of some subspecies is elevated due to conflict and poaching; death is random; differential reproduction occurs. D) Genetic variation exists in the giraffe population across Africa; only those animals with a specific gene pool, represented by certain subspecies, can survive. Eliminate
Biology
2 answers:
GREYUIT [131]3 years ago
8 0

Answer:

According to my calculations 1+1=2 so the answer is A

Explanation:

if 1+1=2 then the answer is A

Fynjy0 [20]3 years ago
6 0

Answer: it’s b I got it right

Explanation:

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Your answer would be ( A star has 2 star systems )

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3 years ago
Male-patterned baldness is more common in males as the name suggest.why is this?
Ray Of Light [21]

Answer:

mark brainliest :))

Explanation:

Because baldness is a sex-linked trait.  

In other words, men are simply more likely to express the trait for baldness than women are, because they only need one set of genes for baldness, while women need two.  

If, for example, for each gene there is a 1/2 chance that the gene will be for baldness and 1/2 that it will not, then men have a 1/2 chance (because 1/2^1 = 1/2) of being bald, while women have a 1/4 chance (because 1/2^2 = 1/4) of being bald.  

This is the reason it's called "male-pattern baldness": it is more common in males. However, this does not explain nor rule out the dearth of women with baldness-women can get it too: it's just less common

5 0
4 years ago
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Plants and animals that live in estuaries face a dilemma in maintaining water balance inside their cells. During high tide they
jok3333 [9.3K]

Answer:

The correct answer is "a hypertonic solution".

Explanation:

Seawater is the most clear example of a hypertonic solution in nature. The concentration of ions in seawater are far more superior than the concentration of ions inside a plant or an animal cell, since seawater have an osmolarity of about 1000 mOsm/l. Therefore, at high tide a plant or animal cell will be in a hypertonic solution, and the cells must have adaptions to avoid cell shrinking and dead.

6 0
3 years ago
Which stage is the last stage of speciation?
MrRa [10]
D is the correct answer. Hope this helps.

5 0
4 years ago
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Choose the term that correctly describes the relationship between these two sugar molecules
DIA [1.3K]

Answer;

-Structural isomers.

Explanation;

-Isomers are molecules that have the same molecular formula, but have a different arrangement of the atoms in space.

-Structural Isomers are molecules which have the same molecular formula but have different connectivities. That is; the molecules have the same molecular formula, but their atoms have different arrangements or bonds.

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3 years ago
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