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2 years ago

Which of the following situations is most likely to involve the action of the parasympathetic nervous system?

Biology

1 answer:

stiv31 [10]2 years ago

5 0

Out of the following given choices

a) Brooke’s finger accidentally grazes the hot iron; she immediately yanks her hand away.

b) After a satisfying evening meal, Callum relaxes in front of the television. c) Walking toward her car is a deserted parking garage one night, Danica is surprised by a strange man appearing from nowhere. d) Emmeline feels queasy as she approaches the front of the class to give a speech; suddenly, her throat goes dry.

The answer is B. The parasympathetic nervous system is part of the autonomic nervous system that regulates the unconscious actions of the body. The system is regarded as significant in the ‘rest-and-digest’ activity and also the ‘breed-and-feed’.

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Mendel performs a cross using a true-breeding pea plant with round, yellow seeds and a true-breeding pea plant with green, wrink

timama [110]

Answer:

F1 Generation -

Genotype - GgRr

Phenotype - Green and round

F2 generation -

Genotype Ratio –

GGRR: GGRr: GgRR: GgRr: GGrr: Ggrr: ggRR: ggRr: ggrr

1:2:2:4:1:2:1:2:1

Phenotypic ration

Green & round: Green & wrinkled: yellow & round:yellow : wrinkled

9: 3:3:1

Explanation:

G represents Green seed color

g represents yellow seed color

R represents round seed

r represents wrinkled seed

Here G is dominant over g and R is dominant over r

F1 generation -

Genotype of true breeding parents will be

GGRR and ggrr

The offspring produced will be -

GgRr

Genotype - GgRr

Phenotype - Green and round

F2 Generation -

Genotype Ratio –

GGRR: GGRr: GgRR: GgRr: GGrr: Ggrr: ggRR: ggRr: ggrr

1:2:2:4:1:2:1:2:1

Phenotypic ration

Green & round: Green & wrinkled: yellow & round:yellow : wrinkled

9: 3:3:1

8 0

1 year ago

Sugar beets (Beta vulgaris) are a major crop in the Red River Valley of the North. Why do you think the beets have to be harvest

makvit [3.9K]

<h2>Sugar beet harvest </h2>

Explanation:

Sugar beets have to be harvested and stockpiled in September because they have to get the root out of the ground before the ground freezes

Sugar beets are harvested with two primary pieces of equipment
The defoliator removes the green leaves and slices a slab from the top of the sugar beet root
This removed slab is the growing point of the sugar beet and contains high levels of impurities, which impede the factories ability to extract the sugar from the remainder of the harvested root
The sugar beet root is then harvested with a pinch wheel harvester, which pinches the root and lifts from the soil
The sugar beet harvester also separates some soil and conveys the sugar beet into a truck to be transported to a receiving station

3 0

2 years ago

The use of ________ can result in decreased appetite, difficulty sleeping, stomach ache, and headache.

irinina [24]

stimulants. There's also a Quizlet that has this exact question if you would like a link.

8 0

2 years ago

Read 2 more answers

Suppose that Gene B occurs in a sea turtle gene pool where the frequency of the B1 allele is 0.5 and the frequency of the B2 all

disa [49]

Answer:

Frequency of the B3 allele $= 0.1$

Explanation:

The allele frequencies in a given population remain constant which means that every generation will have the same gene pool across the generations. As per Hardy Weinberg’s first equilibrium equation, the sum of frequency of all the alleles at a given locus is equal to one

Thus, if "p" represents the frequency of B1 allele and "q" represents the frequency of B2 allele and "r" represents the allele for B3 allele. Then, sum or "p", "q" and "r" is equal to one.

$p+q+r = 1\\$

Substituting the given values, we get -

$0.5 + 0.4 + r = 1\\0.9 + r = 1\\r = 1-0.9\\r = 0.1$

5 0

2 years ago

Which of the following is the strongest evidence that protein structure and function are correlated?

kenny6666 [7]

Answer:

Explanation:

To denature a protein is to alter its three dimensional structure. Loss of protein structure consistently correlates with loss of protein function, so it is a strong correlation.

5 0

2 years ago