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3 years ago

An infant moves involuntarily when you touch the soles of his feet. such a movement is

1 answer:

6 0

The movement is a called a reflex, which is a sudden muscle movement in response to a stimuli. The reflex you are describing is a reflex known as a plantar reflex, which is present in infants and children but goes away before adulthood (ideally).

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Plants that produce seeds within a cone are called _____.

Sedbober [7]

Answer:

Gymnosperm

Explanation:

8 0

3 years ago

If the dominant alleles for stem color and fasciation are commonly located on the same chromosome, how could the dominant allele

VikaD [51]

Answer:

Chromosome crossing over in prophase 1 where DNA segments are moved between the homologous pair.

Explanation:

3 0

3 years ago

In rabbits, short hair (S) is dominant over long hair (s). What genotype and phenotype ratios are expected from a cross between

irga5000 [103]

Answer:

Answer:

Genotype Phenotype

SS 1/4 Short hair 3/4

Ss 2/4 Short hair 3/4

ss 1/4 Long hair 1/4

Explanation:

Both are heterozygous for the trait so we can expect that the cross would be:

Ss x Ss

S s

S SS Ss

s Ss ss

So the resulting off-spring would have the following genotype and phenotype:

1 out of 4 will have a genotype of SS.

2 out of 4 or half will have a genotype of Ss.

1 out of 4 will have a genotype of ss.

But because short hair is dominant the phenotype ratios would differ because Ss and SS would express short hair, so we add up their ration:

Short hair: 1/4 + 2/4 = 3/4

Long hair: 1/4

So in summary:

Genotype Phenotype

SS 1/4 Short hair 3/4

Ss 2/4 Short hair

ss 1/4 Long hair 1/4

Explanation:

7 0

3 years ago

Michelle drew a simple diagram to show how a hurricane forms. Which location on the diagram indicates a low-pressure area?

inysia [295]

Answer:

"Location 4" indicates a low-pressure area

Explanation:

A low-pressure area is defined as the region in which the pressure in the atmosphere is comparatively lesser than nearby surrounding areas. This region is a depression that is comprised of more winds, warmer air, and lifting of air mass takes place.

In a low-pressure zone, the warm air becomes less dense, due to higher temperature, as a result of which it rises up into the atmosphere. As it rises up into the atmosphere, it eventually cools and condensation starts taking place. After a definite period of time, rainfall occurs.

Thus, in the given image, location 4 shows the low pressure area.

3 0

3 years ago

Which of the following observations tells the biologist that the organism is eukaryotic? Choose all that apply.

melomori [17]

Answer:

The answers are B, C, D.

4 0

3 years ago