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Rudik [331]
3 years ago
13

Particles too large to enter the membrane need to use a transport-channel proteins, no energy is required and they move from hig

h to low concetration.
A-Ion Pump
B-Facilitated Diffusion
C-Simple Diffusion
D-Osmosis
and it is not C because that’s what i picked
Biology
1 answer:
alina1380 [7]3 years ago
4 0

Answer:

B

Explanation:

Facilitated diffusion because the transport channel proteins facilitate(help) the particle to enter the cell

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What’s 8 and 9 please help
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8. is more fertilizers as that is the thing ehich changes everything because without that nothing will change
9. is the colour of light or plant growth i am unsure sorry
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Which comic book featured the first appearance of iron man?
rosijanka [135]

I think it is in Tales of Suspense #39 that the cover dated March 1963. May 1968  Iron Man #1 received its own title.

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to meet cellular needs for food,water,energy,waste removal,multicellular organisms have developed various specializations,such a
Dvinal [7]

Answer:

The correct answer will be- true and structural specializations

Explanation:

The evolution of life on earth has suggested that life has moved from the simplicity to complexity or from single-celled organism to multicellular organism.

This multi-cellularity is achieved through the property of called cellular differentiation and specialization. as the cellular complexity increases, therefore, cellular demands like the use of energy, food, water and other variables increased.

This lead to the formation of the organ and organs system specializes to perform specific functions like the digestive system and another biological system.

Thus, true and structural specializations are the correct answer.

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3 years ago
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How many nucleotides are there in a codon?
cestrela7 [59]

Answer:

three

Explanation:

Each codon consists of <em>three nucleotides</em>, usually corresponding to a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C.

6 0
3 years ago
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In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over
jeyben [28]

Answer:

1. ddaa

2. DdAa

3. One from each parent

4. False

5. 0.25

6. 0.25

7. 0.25

8. 0.5

Explanation:

The remaining part of the question is  

1. What is Jane's genotype?  

2. What is Paul’s genotype?  

3. Where did Jane get her gene for curly hair? From her mother or father?  

4. True or False: Jane's mother was heterozygous for curly hair?

5. What fraction of Paul and Jane's children should have curly hair and dimples?  

6. What fraction of their children would have straight hair and no dimples?  

7. What fraction should have dimples but not curly hair?  

8. What is the probability of getting any offspring with dimples

Solution

1. Genotype of Jane's mother -ddaa

2. Genotype of Paul (heterozygous for dimples and curly hair) – DdAa

3. One “a” gene from mother (whose genotype for hair was aa) and second “a”gene from father (whose genotype was  Aa)

4. False.  She was having straight hair

5. Offspring of  Paul and Jane  

DdAa (4), Ddaa (4), ddAa(4) and ddaa (4)

4 out of 16 offspring will have curly hair and dimples = 0.25

6. ddaa, 4/16 = 0.25

7. Ddaa , 4/16 = 0.25

8. Ddaa, DdAa, 8/16 = 0.5

6 0
3 years ago
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