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PIT_PIT [208]
2 years ago
6

The diagram is a model of one way that materials move across the cell membrane. Oxygen molecules are represented by two red circ

les. Carbon dioxide molecules are represented by a gray circle with two red circles attached. The left-hand side of the diagram shows the beginning concentrations of the two types of molecules. The right-hand side shows how the molecules have moved over time.
A.They move to an area with a lower oxygen concentration.



B.They become transport proteins in the cell membrane.



C.They merge with the cell membrane to form vacuoles.



D.They move to an area with a higher oxygen concentration.
Advanced Placement (AP)
2 answers:
SpyIntel [72]2 years ago
8 0

Answer:a

Explanation:

Ive done this and i remember it as a

Mashutka [201]2 years ago
4 0
This app is for school my guy
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N2 + O2 + Energy >2NO how does this model show the components of the sysytem
ololo11 [35]

Answer:

good evening I can't see it remain money for the authorization letter from your side and photocopy of your passport requirement

Explanation:

HVDC CFCs verb CFS by good evening I can't see it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in filling the forms it remain money am done in

7 0
2 years ago
[EDITED] NEED HELP ON STATS QUESTION 40 POINTS
Margaret [11]
<h3>Answer:</h3>
  1. A — 1
  2. B — ∑[k=0..2] 15Ck(.24^k)(.76^(15-k))
  3. D — 12 and 3.1
  4. A — 0.1091
  5. B — 0.83 ...
<h3>Explanation:</h3>

1. The probability is 0.52 that the officer will pull over a driver and then the expected number more. So, if x is the expected number of drivers pulled over until one is not texting, we have ...

... x = 0.52(1+x)

... 0.48x = 0.52

... x = 0.52/0.48 = 13/12 = 1 1/12 ≈ 1 . . . . matches selection A

(<em>Comment on this result</em>: I find it interesting that these are the odds in favor of finding a driver who texts. That is, if the probability of texting is 0.98, the odds are 49:1 that a driver will be texting, and the expected number of pull-overs is 49.)

2. The probability of at most 2 being cured is the probability of 0, 1, or 2 being cured. You need to add up those probabilities. The sum in answer selection B does that.

3. The mean of a binomial distribution is ...

... μx = np = 60·0.2 = 12

... σx = √(np(1-p)) = √(12·0.8) ≈ 3.0984

These match selection D.

4. 20C14(0.8^14)(0.2^6) = 38760·.043980·0.000064 ≈ 0.109100 . . . matches A

5. mean(x) = 0.94; mean(x^2) = 1.58, so ...

... σx = √(1.58 -0.94²) ≈ 0.83 . . . . matches selection B

3 0
3 years ago
What is one method that helps control online fraud?
lara [203]

Answer:

b

Explanation:

A _ P _ E _ X

5 0
1 year ago
The history of the Philippines is believed to have begun with the arrival of the first humans using rafts or boats. True or Fals
klemol [59]
True The history of the Philippines is believed to have begun with the arrival of the first humans using rafts or boats at least 709,000 years ago as suggested by the discovery of Pleistocene stone tools and butchered animal remains associated with hominin activity.
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Which of these is a form of nonrenewable energy?
dmitriy555 [2]

Answer:

natural gas

Explanation:

i think this is right

6 0
3 years ago
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