Eagles

cricket20 [7]

Answer:

During photosynthesis, plants take the water from the soil, and the carbon dioxide from the air, and they make sugars out of it. When plants have the right balance of water, air, sunlight and nutrients, their cells grow and divide, and the whole plant gets bigger and bigger. And that's how plants grow.

Explanation:

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8 0

3 years ago

Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide and "a" is a recessive gene for the inability to tas

dexar [7]

Complete question:

Suppose "A" is a dominant gene for the ability to taste phenylthiocarbamide and "a" is a recessive gene for the inability to taste it. Which couples could possibly have both a child who tastes it and a child who does not?

a. father AA, mother aa

b. father Aa, mother AA

c. father Aa, mother Aa

d. father AA, mother AA

Answer:

c. father Aa, mother Aa

Explanation:

According to the given information, the ability to taste phenylthiocarbamide is a dominant trait and is imparted by the allele "A". This phenotype would be expressed in both homozygous and heterozygous conditions. The non-taster phenotype would be expressed in the homozygous recessive genotypes only.

To have both taster and non-taster children, both the parents should have at least one copy of the recessive allele. Among the given options, the father with genotype Aa and the mother with genotype Aa have the possibility to have both taster and non-taster children.

Aa x Aa= 3/4 taster (1/4 AA and 1/2 Aa): 1/4 non-taster (1/4 aa)

4 0

3 years ago

The surface are of a sphere can be approximated as follows

11Alexandr11 [23.1K]

The surface area of a sphere can be approximated as follows: Surface area = 4πr2; where r is the radius of the sphere; π is a constant that is roughly equal to 3.

6 0

3 years ago

What is the major advantage of sexual reproduction over asexual reproduction?

jarptica [38.1K]

Asexual reproduction produces genetically similar or same offspring whereas sexual reproduction [produces genetically varied offspring.

3 0

3 years ago

Which of the following samples has the greatest population density?

Andrews [41]

The right answer is D.

The density of a given population is calculated by dividing the number of inhabitants by the area expressed in km² (or in hectares).

Number of inhabitants ÷ area (in km²) = number of inhabitants / km²

A = 125000 organism/ 2.5 m2 = 50,000 organisms / m2

B = 13000 organisms / m2

C = 37500 organisms / m2

D = 200000 organisms / m2

8 0

4 years ago

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