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
Helen [10]
3 years ago
10

why is it important that a cell membrane contains opening into the cell a the opening allows chemical such as oxygen and other n

utrients into the cell b the opening will allow the cell to grow larger see the openings are only used for carbon dioxide to leave the inside of the cell the opening in the cell membrane allows DNA to come in and out of the cell ​
Biology
1 answer:
wolverine [178]3 years ago
4 0

Answer:

Explanation:

Cells generate energy from the controlled breakdown of food molecules. ... View Terms of Use  molecules that other cells rely on for the energy required to sustain growth, metabolism, ... proteins that span the cell membrane permit specific molecules into the cell, Figure 2: Cells can incorporate nutrients by phagocytosis.

You might be interested in
Oxytocin and antidiuretic hormone (adh) are synthesized in the ________ but released from the ________.
zvonat [6]
<span>Oxytocin and antidiuretic hormone (adh) are synthesized in the  ypothalamus but released from the posterior pituitary.</span>
8 0
2 years ago
Que características poseen los babuinos que no poseen los Lemures
Vedmedyk [2.9K]

Answer:

Opposing thumbs, expressive faces, complex social systems: it's hard to miss the similarities between apes and humans. Now a new study with a troop of zoo baboons and lots of peanuts shows that a less obvious trait -- the ability to understand numbers -- also is shared by humans and their primate cousins.

"The human capacity for complex symbolic math is clearly unique to our species," says co-author Jessica Cantlon, assistant professor of brain and cognitive sciences at the University of Rochester. "But where did this numeric prowess come from? In this study we've shown that non-human primates also possess basic quantitative abilities. In fact, non-human primates can be as accurate at discriminating between different quantities as a human child."

"This tells us that non-human primates have in common with humans a fundamental ability to make approximate quantity judgments," says Cantlon. "Humans build on this talent by learning number words and developing a linguistic system of numbers, but in the absence of language and counting, complex math abilities do still exist."

Cantlon, her research assistant Allison Barnard, postdoctoral fellow Kelly Hughes, and other colleagues at the University of Rochester and the Seneca Park Zoo in Rochester, N.Y., reported their findings online May 2 in the open-access journal Frontiers in Comparative Psychology. The study tracked eight olive baboons, ages 4 to 14, in 54 separate trials of guess-which-cup-has-the-most-treats. Researchers placed one to eight peanuts into each of two cups, varying the numbers in each container. The baboons received all the peanuts in the cup they chose, whether it was the cup with the most goodies or not. The baboons guessed the larger quantity roughly 75 percent of the time on easy pairs when the relative difference between the quantities was large, for example two versus seven. But when the ratios were more difficult to discriminate, say six versus seven, their accuracy fell to 55 percent.

That pattern, argue the authors, helps to resolve a standing question about how animals understand quantity. Scientists have speculated that animals may use two different systems for evaluating numbers: one based on keeping track of discrete objects -- a skill known to be limited to about three items at a time -- and a second approach based on comparing the approximate differences between counts.

Explanation:

4 0
2 years ago
Which of the following are located on a plant's leaves?
Luba_88 [7]

<h2><em><u>stomata </u></em><em><u>is </u></em><em><u>located </u></em><em><u>on </u></em><em><u>the </u></em><em><u>plants </u></em><em><u>leave </u></em></h2>

5 0
1 year ago
Read 2 more answers
Which complex carbohydrate contains only a-1,4-glycosidic linkages?
Andrei [34K]

Answer: Amylose

Explanation: Which complex carbohydrate contains only a-1,4-glycosidic linkages? Amylose (Amylose is formed from a-1,4-glycosidic linkages of glucose.)

5 0
3 years ago
Explain why extended exercise is considered to be "healthy"
sp2606 [1]
Many physical disorders that occur in humans are attributed to the styles of living and general eating habits. Conditions such as diabetes, depression, dymentia and even some cancers are led by bad eating habits. A friend once asked me: Now that I do not want to become obesse but want to be muscular, what will I do since I have to gain mass but I don't want to overfeed? My answer was so simple. EXERCISE
Exercise can be in many forms. The most common modes of exercise are gym and athletics. If you don't do regular exercise, your body does not find a chance to get rid of the many wastes produced by different metabolic processes. Some of these products are toxic and they lead to bad effects in the body. The effect is getting lifestyle diseases.
Exercise plays a key role in boosting your memory. During and after exercise, blood becomes more oxygenated and the supply of oxygenated blood to the brain is increased. This ensures there is renewed strength in the brain parts e.g. hypothalamous and hence boosting thinking ability.
We can not overlook the fact that exercise is fun. When exercising, you are happy and happiness makes you stay healthy.




3 0
2 years ago
Other questions:
  • Which statement concerning production of offspring is correct
    6·1 answer
  • A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after two h
    14·2 answers
  • Which gas in Earth's atmosphere helps living things make proteins?
    11·2 answers
  • The most common map projections are based on three geometric shapes. Which of the following geometric shape is not one of the th
    15·1 answer
  • Cholesterol is an essential component of cell membranes.<br><br> True<br> False
    7·1 answer
  • The polysaccharide that is responsible for the strong structural nature of plant cell walls is
    9·1 answer
  • An air mass takes on temperature and moisture characteristics of the land
    10·1 answer
  • Ecosystems / 11 of 18
    9·1 answer
  • Why does water have a strong surface tension and why is this important?
    9·1 answer
  • Why DNA is absent in blood plasma?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!