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3 years ago

Which area of the brain influences sleep and dreaming?

1 answer:

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The actions of sleep and dreaming are influenced by the pons. This portion of the brain is located above the medula, and connects the upper and lower parts of the brain. In addition to driving sleep and dreaming, it also synthesizes signals to control movements on the two sides of the body.

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I need help with the last two questions pleaseit’s due today.

Ivan

D) yes because in order to inherent a recessive trait you would have to have two recessive genes. In this case it’s (gg)
E)Yes because the parents have the genes (Hh) and (hh). (I’m assuming based off the first question) Therefore, if an offspring has hanging earlobes there’s a 50% chance they’d have the genes (Hh)

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3 years ago

Directions: Read and understand each question very well. Write the letter on a separate sheet of paper. 1. Which of these explai

tresset_1 [31]

Answer:

1.D

2.D

4.theres no picture so i am not sure what to answer,youre on your own here, just read and research about it on ur module or in the internet, u can do it:D

5.B

6.A

7. the choices arent very clear in what you copy and paste here but the answer is, revolution of the earth around the sun and the earth tilting on its axis or "rotation"

Explanation:

HOPE IT HELPS<3

KEEP LEARNING BUD

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3 years ago

He light colored rock pocket mice in New Mexico blend in with the sandy soil of the area, but on darker lava flow, the light col

fiasKO [112]

Answer: option B they have a random gene mutation that affects their fur colour.

Explanation :-

Variation is the phenomena which occurs in all populations.
These variations result in slight differences in the phenotypes of individuals .

These variations only arise due to random mutations that arise in the individuals’ genome and then can be inherited by their offspring.

There is always a probability of one particular trait to make the individuals survive better in the environment as compared to other trait.

The individuals having the trait that helps them to survive better in the environment tend to survive more and leave more progeny. This is termed as survival of the fittest.

Thus, according to the question it can be inferred that the dark fur colour arose due to a random mutation since it is the only source of variation. Since, in the given environmental conditions the mice having the dark fur colour were less susceptible to the predators they are better fitted to survive.

The dark brown fur coat mice, survive better, leave more progeny and hence, increase their population with time. However, the orginal source of origin of this trait was a random mutation. Had this mutation not occured, the dark coloured fur mice would not have been there.

So, a random gene mutation affecting the fur colour made the dark coloured mice first appear in the population.

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3 years ago

Read 2 more answers

How would a forensic scientist MOST accurately describe the chemical properties of a cup of gasoline?

Reil [10]

Answer: A. It is liquid and weighs two pounds.

Explanation:

A provides the most details and includes a quantitative measurement however an actual cup of gasoline does not weigh 2 pounds.

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1 year ago

What did gregor mendel want to find out when he decided to study pea plants.

Alexxx [7]

Answer:

How traits/characters were passed down and inherited from parents to offspring.

7 0

2 years ago