1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
3 years ago
9

Why are human populations not limited by the carrying capacity of their ecosystems

Biology
1 answer:
Akimi4 [234]3 years ago
6 0

The human populations are not limited by the carrying capacity of their ecosystems, and they are the only species on Earth that are able to perform such a thing. The main reason for this is that the humans are able to transport resources of all sorts and for all needs from very distant places. Even if there's a very large population surrounded by desert, the humans are still able to survive by simply bringing in the necessary things from other places throughout he means of transportation. Another reason is that the humans are able to change and manipulate their environment to certain extent, being able to provide for themselves even in ecosystems that naturally are nowhere near close to provide those things for them.

You might be interested in
The mitotic spindles arise from which cell structure?
Lapatulllka [165]

Answer:

The correct option is : b. centrosome

Explanation:

Centrosome is a cell organelle, which acts as the microbule organizing center and also regulates the cell cycle progression in an eukaryotic cell.

During the prophase stage of the cell cycle, the centrosomes are associated with the membrane of the nucleus. The nuclear membrane ruptures during the mitosis and the interaction of the centrosome nucleated microtubules with the chromosomes leads to the formation of the mitotic spindle.

<u>Therefore, mitotic spindles arise from the centrosome.</u>

5 0
3 years ago
The form of circulatory shock known as hypovolemic shock is ________. the form of shock caused by anaphylaxis any condition in w
WITCHER [35]

Answer:

The form of circulatory shock known as hypovolemic shock is the condition when the plasma level of blood and the body fluids level is decreased rapidly causing insufficient level of oxygen in the blood . the form of shock caused by anaphylaxis any condition in which blood vessels are inadequately filled and blood cannot circulate normally shock that results from large-scale loss of blood volume, or after severe vomiting or diarrhea always fatal

Explanation:

  • hypovolemic shock is one type of shock among different kinds of shock. it happens when body fluids or blood plasma level starts to decrease rapidly due to some internal or external injury such as bleeding, dehydration, burns, and severe vomiting, diarrhea.
  • later causes body fluid loss which decreases the o₂ level in blood.
  • this causes lack of o₂ supply in organs which is indeed a fatal condition.
5 0
3 years ago
A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choose mates
kompoz [17]

Answer:

In the cardinals, if the females start using a different criterion than the color of the feather when they choose couple, most likely to happen is that decreased variation in the shades of red because no form of the trait is advantageous.

Explanation:

Options for this question are:

  • <em>Increased variation in the shades of red because the selection pressure has been relieved.</em>
  • <em>Increased variation in the shades of red because the cardinals try different ways to impress the females.</em>
  • <em>Decreased variation in the shades of red because no form of the trait is advantageous.</em>
  • <em>Decreased variation in the shades of red because the only reason for variation was selection pressure.</em>

In the context of natural selection, male cardinals court females using the coloring of their feathers as a form of sexual selection. This means that the shades of red in the feathers are a selection criterion in these birds, and the more visible shades represent an advantage.

But, if the selection criterion was not the color of the feathers, this trait would no longer represent an advantage in the competition between the males to be chosen as a mate. Instead, the trait that would determine sexual selection would be the one that experiences an increase in its variation<em>.</em>

5 0
3 years ago
How does blood flow through the heart and lungs during fetal circulation?
mestny [16]
Most blood flows across to the left atrium through a shunt called the foramen ovale. then from the <span>left atrium, </span>blood<span> moves down into the lower chamber of the </span>heart. <span>It is then pumped into the first part of the large artery coming from the </span><span>heart</span>
7 0
3 years ago
Which of the following are useful traits of cloning vectors?
SSSSS [86.1K]

Answer:

The correct answer is option - e. all of the above are useful traits.

Explanation:

A cloning vector is a small segment of DNA that can be established stably in an individual organism and able to internalize a foreign DNA for cloning purposes. The cloning vector could be taken from different organisms such as plasmid of a bacterium, or DNA from a virus. A cloning vector must possess some characteristics -  

The cloning vector must be self-replicating ability in the host cells, it should be small in size with restriction site for the restriction endonuclease enzymes in it. The replication character of the vector should not interfere with the internalized DNA fragment. The presence of marker genes in the vector is also a property that is helpful in identifying of recombinant cells.

Thus, the correct answer is option - e. all of the above are useful traits.

7 0
3 years ago
Other questions:
  • Check all factors that were constant throughout
    7·2 answers
  • Humans have altered the water cycle by
    5·1 answer
  • A large portion of precipitation in the rainforest occurs as a result of _______.
    12·2 answers
  • _____ populations have continued to increase due to use of technology.
    12·1 answer
  • What is a human egg cell
    13·2 answers
  • Does 68% of the electrical energy in the United states produced by nuclear fuel
    10·1 answer
  • The electrons are not shared equally creating a _________ molecule.
    13·1 answer
  • PLEASE HELP!! 20 POINTS<br> Why are meiosis and fertilizations said to be "complimentary processes"?
    13·2 answers
  • Jason is swimming in his backyard pool and notices that sounds underwater are different than sounds above water. What best expla
    12·1 answer
  • Why do you want a small motor unit for fine motor skills?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!