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3 years ago

What factors determine the rate at which a population is increasing or decreasing?

1 answer:

7 0

What factors determine the rate that a population is increasing or decreasing? Birthrate, death rate, and the rate at which individuals enter (immigration) or leave (emigration) a population all affect population growth!
Here you goooo!!! :)

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AnSWER THIS ASAP!Please

Setler79 [48]

Answer:

a method of classification of animals and plants according to the proportion of measurable characteristics that they have in common. It is assumed that the higher the proportion of characteristics that two organisms share, the more recently they diverged from a common ancestor.

Explanation:

3 0

3 years ago

Which of the following statements correctly describes some aspect of ATP hydrolysis being used to drive the active transport of

saw5 [17]

Answer:

B) This is an example of energy coupling

Explanation:

Energy coupling is a process by which cells carry out thermodynamically unfavorable, endergonic (energy-requiring) reactions to other exergonic (reactions that liberate free energy) reactions.

Reactions which are endergonic do not occur spontaneously as they result in a decrease in entropy and a positive free energy change, ∆G.

Exergonic reactions occur spontaneously as they result in an increase in entropy and have a negative free energy change, ∆G.

For example, the active transport of ions against their concentration gradients in cells is a non-spontaneous endergonic process which is coupled to the hydrolysis of ATP, an exergonic process in other for the reaction to proceed. ATP hydrolysis phosphorylates an amino acid side chain in the transport protein which then drives the forward process of transport of the ion.

Considering the above,

Option A: The hydrolysis of ATP is endergonic, and the active transport is exergonic is false because ATP hydrolysis is exergonic while active transport is endergonic.

Option B: This is an example of energy coupling is true.

Option C: Both ATP hydrolysis and active transport are spontaneous because they result in an increase in entropy of the system is false because only ATP hydrolysis is spontaneous

Option D: Neither ATP hydrolysis nor active transport is spontaneous is false because ATP hydrolysis is spontaneous.

Option E: ATP is acting as a transport protein to facilitate the movement of the ion across the plasma membrane is false because ATP is not a protein, rather it serves to activate the transport protein by phosphorylating it.

8 0

3 years ago

Imagine that you are studying the food preferences of a lizard species across its range. You have hypothesized that because thes

vfiekz [6]

Answer: Option A

Explanation:

The hypothesis states that the lizards living in different regions belong to the different food preferences.

No, the hypothesis will be proved correct only when the lizards will be kept in the same condition then their food preferences will be studied.

If their food preference will still be the same then it can be concluded that they reflect parental food preferences.

Else, if they will feed on the food given to them then the hypothesis will be rejected.

3 0

3 years ago

someone please help me with Part A and B on biology please i really need help will give brainliest read hard and rotate phone i

finlep [7]

<em>Hi there, I come in behalf of jcherry99,</em>

So, first question -

This shouldn't be that much of an issue, since we have the text to help us out, but I'll try breaking it up into more simpler words:

The placenta is incide the uterus, where the baby starts forming. As you might already know, babies do not eat while they're inside woman's bellies:

So how do they feed?

They feed throught the umbilical cord.

So why is the placenta there? Why would the baby want anything apart from food?

The placenta, instead of trading food with the baby, regulates temperature, supplies it with nutrients, exchanges gas with the mother (which the mother later exchanges with the environment) and gets rid of waste.

And, food is not everything for a baby that is in the urge of developing complex muscles, bones, etc.

Second "question" -

I do not actually know what I'm supposed to do, since there is no question. But I can tell you this - the information contained in part B is correct:

The amnioic sac provides babies with a liquid which allows him to move freely in the uterus, which is very helpful. But, note that he doesn't start moving randomly, he is always in a fetus or similar-to-fetus position.

Hope it helped,

BioTeacher101

6 0

3 years ago

Antigens are Multiple Choice something made by a white blood cell to destroy a pathogen. membrane receptors on B-lymphocytes. di

Zolol [24]

Answer:

Something that an antibody or T-lymphocyte binds to

Explanation:

As per the definition, antigens are the substances or molecules that are capable of inducing an immune response. When our immune system detects any unwanted substance or molecule in our body, the specific type of antibody is made against that antigenic substance and the antibody made against it binds to the antigen so that the other immune cells can recognize it and destroy it and protect us form its harmful effect. T-cell are also involved in recognizing antibodies and specific T-cell can bind to the antigen.

8 0

3 years ago