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mylen [45]
3 years ago
13

The graphs here show the distribution of beak depths for the ground

Biology
1 answer:
dedylja [7]3 years ago
5 0

Answer: (A) Natural selection tend to reduce genetic variation as there was a smaller distribution of beak depths, but it tends to select for the most fit phenotypes, as there was an increase in average beak depth after the drought.

Explanation: The picture below shows proof if needed. On USATP

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On what structures are genes located and what is their primary function?
padilas [110]

Explanation:

Genes are located on chromosomes, which are large pieces of DNA contained in a eukaryotic cell's nucleus.

8 0
3 years ago
List 3 ways muscle action may be determined.
In-s [12.5K]

Answer:

The muscle action can be determined by:

* Prime Movers and antagonist: Prime movers are also called the agonist, it is the muscle that provides the force that drives the action. Regarding to the antagonist muscle, it is the opposite to a prime mover as it provides resistance or reverse in a given movement. They are paired up on opposite sides of a joint.

* Synergists: There are one (or more) synergists involved in an action, the are muscles that help the prime mover when it is playing its role.

* Stabilizers: Their fuction is to keep bones immobile when it is needed. For example, the muscle of your back, they are stabilizers when the keep your posture sturdy.

6 0
3 years ago
What happens when potassium ions continue to enter into the neuron after generation of an action potential?
nadya68 [22]
As the action potential passes through, potassium channels stay open a little bit longer, and continue to let positive ions exit the neuron. This means that the cell temporarily hyperpolarizes, or gets even more negative than its resting state.
5 0
3 years ago
The vagina is at risk for infection because of its location and because it opens to the outside of the body. What is a protectiv
denpristay [2]

Answer:

The correct answer is- Normal vaginal pH is acidic (4 to 5), which protects from infection.

Explanation:

The vaginal part in woman have high tendency to get infection because of moist internal condition and its location but vagina also have a protective mechanism which protect it from the infection.

A woman's vagina contains many species of Lactobacillus genus which secrete lactic acid and hydrogen peroxide that maintains the low pH level in the vagina. So due to this reason, the normal pH of the vagina remains between 4-5 which does not allow pathogenic bacteria to flourish and cause infection.

5 0
3 years ago
If two trucks have the same mass, but truck A is traveling 15 km/h, and truck B is traveling 30 km/h, what statement is true? Qu
Montano1993 [528]

Given that the two trucks have the same mass but different velocities, that is truck A is traveling 15 km/h and truck B is traveling 30 km/h,  hence  Truck B will have a greater stopping distance.

The reason why Truck B will have a greater stopping distance is because it speed is greater hence more distance to cover.

From the following expression

Speed = Distance/Time

Distance = Speed*Time

More on the kinetic Energy

Following from the given problem truck B will also have more kinetic energy because it velocity is more

Formula

KE= 1/2mv^2

Hence the more the velocity for a constant mass the greater the Kinetic energy

Learn more:

brainly.com/question/20658056

 

6 0
3 years ago
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