Daniel and nellie are hoping to maximize nellie's chances of becoming pregnant. when should they have intercourse?

Primate evolution and behavior, such as hunting skills, have been directed in part by the development of depth perception. What

Morgarella [4.7K]

Answer:

The answer is the placement of the eyes.

Explanation:

Developing depth perception through evolution for reasons such as hunting and movement was crucial in the survival of the species and it was made possible by the change in the location of the eyes to the front of the head. Because of the location of the human eyes and the distance of approximately 6 centimeters between them, they perceive slightly different images of the world and this also helps with the depth perception.

I hope this answer helps.

4 0

3 years ago

Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and

o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors to input sensory signals to the spinal cord and the brain are categorized based on their diameter, sizes, and nature of myelination. Based on this;

A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells

A-beta are next in diameter, myelinated and sensitive to sensation of touch.

A-delta followed in diameter, and size. They are mylinated, and sensitive to pain and temperature.

C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.

Therefore, if the speed of conduction,of action potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction) :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0

3 years ago

Natural selection causes A. changes in allele frequencies within a population. B. changes in the mechanism of inheritance. C. th

wolverine [178]

Answer:

Natural selection causes change in allele frequencies within a population.

So option A is correct one.

Explanation:

Natural selection generally work on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.

4 0

3 years ago

1. Changing environmental conditions, such as temperature or pH, can affect enzyme shape. How would this alter the enzyme's func

valentina_108 [34]

hi <3

changes in the enzyme's shape would decrease its ability to function as this would change the active site of the enzyme, meaning it is harder for it to carry out its job.

this is why we try to keep enzymes in their optimum environmental conditions so they can function their best

hope this helps :)

5 0

3 years ago

What rhetorical question appeal is Antony making to the audience in this passage from Julius caesar

Artemon [7]

Hey there! If these are the answer choices

A. Pathos

B. Cosmos

C. Ethos

D. Logos

The correct one is the bolded one.

Hope this helped

6 0

3 years ago

Read 2 more answers