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solong [7]
4 years ago
9

African infants have had a greater chance of survival if they have a living maternal grandmother who is without young children o

f her own. This fact has been used to support an evolutionary explanation of ________.
a. habituation.
b. conservation.
c. assimilation.
d. stranger anxiety.
e. menopause.
Biology
1 answer:
NemiM [27]4 years ago
5 0

Answer:

The correct answer is - option E.

Explanation:

African infants have had a higher chance of survival if they have a living grandmother who is with no young child of her own, this fact supports the evolution of menopause.

The 2 major hypothesis related to the evolution of menopause explains either to help the mother of the infant, protecting from the risk related to age-specific mortality or to provide maternal grandmothers who enhance their inclusive fitness.

Thus, the correct answer is - option E.

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In humans, to fold the tongue is a dominant trait (L), and the straight tongue is the recessive trait. What are the probabilitie
kaheart [24]

The given question is incomplete as the genotype of the parents is not given, so the answer is providing in the followings case:

1. dominant parent and recessive parent

2. heterozygous parents

Answer:

1. dominant parent and recessive parent:

dominant parents can be represented by LL and recessive parent is represented by ll, so the gametes would be L, L and l, l.

so,

 L    L

l  Ll   Ll

l  Ll   Ll

so there are all offspring in heterozygous condition as we known one or two dominant allele masks the recessive allele for the trait so 100% offspring can fold their tongue.

2. heterozygous parents

In this case, parents have Ll genotype and gametes would be L and l for each parent so,

    L    l

L   LL  Ll

l    Ll    ll

In this case, one is pure dominant and two heterozygous whereas only one is recessive so, the phenotype of offspring that cant fol the tongue would be:

3/4 = 75%

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The correct answer is True.

I hope this helps you and have a great day!! :)
5 0
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Why is photosynthesis important for plants?
Aleksandr [31]

Answer:

Plants perform photosynthesis because it generates the food and energy they need for growth and cellular respiration. It is important to note that not all plants photosynthesize. Some are parasites and simply attach themselves to other plants and feed from them.

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Answer:

c. The flea beetle can become an invasive species

Explanation:

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In this example, the leafy surge is a good example of an invasive species, it was accidentally introduced and has grown out of control, damaging the range land. In an attempt to control this, we deliberately introduced <em>another non-native species</em>.

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