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
nikklg [1K]
3 years ago
10

Can someone really help me ASAP!!!

Biology
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

when a concentration gradient exists and more of the substance is on the inside of the cell

Explanation:

Active transport moves substances against the concentration gradient, from an area of low concentration to an area of high concentration. It requires the use of energy, usually in the form of ATP.

Hope that helps.

You might be interested in
15,000 years ago, when humans were foragers and hunters, what characterized daily life? What were humans eating, and where and h
lisabon 2012 [21]

1. 15,000 years ago the humans were still hunter-gatherers. Their daily lives were largely based around one thing, finding enough food to survive through  the next few days. This means that they had to constantly be on the move, be it for hunting animals, or for finding rich places with eatable plants. There was lot of walking, running, and scouting involved every day. It was a lifestyle of ''living through the day''.

2. During this period of time, the diet of the humans was consisted of animals they hunted, fish, and plants. There were differences from region to region though, so the people that lived along the coastline based their diet on marine animals, the ones that were living in colder regions were eating mostly meat, while the ones living in forested areas or grasslands had combination of plants and meat. The lifestyle in general was moving from place to place, be it on a daily basis, weakly, or seasonally, depending on the conditions. Some of these people were making small shelters, some of which were retractable and they were moving them with them, while others were using caves.

3. There are many difference between the forager peoples and the agriculturalists. The foragers were nomads, thus they were moving very often from one place to another, while the agriculturalists were having a settled lifestyle. The nomads very often had bad injuries which were often fatal, usually because of hunting, while the agriculturalists had much better health because they had much safer lifestyle. The foragers were not able to produce their own food, but instead they were relying on mother nature, while the agriculturalists were producing their own food and had the food problem solved.

4 0
3 years ago
Read 2 more answers
1. What does Kes73 have that makes it interesting to astronomers?
nata0808 [166]

The thing that makes kes73 interesting to astronomers is ; ( A ) A second star.

kes73 is believed by astronomers to have come from the explosion of dying stars in the supernova. The gases from the dying stars explode and scatter across forming a colorful cloud known as kes73.

At the center of the colorful cloud formed from the gases of the dying stars is a second star ( magnetar ) which is the most powerful star in the galaxy due to its  magnetic force.

Hence we can conclude that the thing that makes kes73 interesting to astronomers is the presence of a second star

Learn more : brainly.com/question/24245572

8 0
3 years ago
Which of the following is a parasitic worm? a. leeches b. hookworms c. planaria d. flukes
yan [13]

Leeches are parasitic because they suck blood not giving any benifit but harm.

3 0
3 years ago
Read 2 more answers
Which of the following is a good predictor of biodiversity in terrestrial ecosystems?
finlep [7]

The correct answer is - predator species in a community.

In the terrestrial ecosystems, a very good and usually sure predictor of the biodiversity is the existence of a predator species. The more predator species there are, the higher the biodiversity, and vice versa, the less predator species, the lesser the biodiversity.

The reason why the predators are such a good predictor of the biodiversity is that they are the species that are on the top of the food chain. That means that the predators are dependent for their survival on all the other species bellow them in the food chain, which is pretty much all species apart from themselves.

If a predator is present, than there has to be pray. If there's pray, omnivores and herbivores, than there has to be plants. All of the organisms are connected to one another, and the ones on the top of the food chain are the most dependent on the others, thus their existence usually means a healthy ecosystem with higher biodiversity.

4 0
3 years ago
The single largest portion of the human genome consists of noncoding _______, some of which include ______. These are DNA segmen
yuradex [85]

Answer:

Repetitive DNA segments: transposable elements.

I hope it helps.

8 0
3 years ago
Other questions:
  • The line y=-8 is... horizontal,slanted, vertical?
    5·1 answer
  • As part of a fraternity initiation ritual, Saul is instructed to interrupt a school basketball game by running on the court nake
    15·1 answer
  • Without redox reactions, NADH cannot unload its electrons and the process of__ will be shut down
    14·2 answers
  • Dust in homes often clings to furnishings due to electrostatic interactions. Describe how you think tiny dust particularly acqui
    11·2 answers
  • What is a good surface area to volume ratio of a cell
    7·1 answer
  • A functional group that is acidic and part of the amino acid backbone: ____________
    15·1 answer
  • Which of these male reproductive structures is unpaired (meaning there is only one in the body)? epididymis corpus cavernosum bu
    15·1 answer
  • Crop rotation is a method of soil conservation because _______. a. the land produces more than one type of crop b. it requires p
    12·2 answers
  • Can an organ do the same job as an organ system ?
    12·2 answers
  • When is the best time to get the flu vaccine? Why?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!