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Cerrena [4.2K]
3 years ago
15

The rate of diffusion is affected by which of the following? A) temperature B) size of molecules C) steepness of the concentrati

on gradient D) A and B E) A, B and C
Biology
2 answers:
S_A_V [24]3 years ago
8 0
The answer isssssss E


Gre4nikov [31]3 years ago
7 0
The answer is E) A, B, and C. All three factors will affect the rate of diffusion.
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When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3 A. What is the resi
blondinia [14]

Answer:

The resistance of the device is 27Ω

Explanation:

When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3 A.

In order to calculate the resistance of the device, we know that the resistance is directly proportional to the voltage in the terminals of the device and the current flowing through it.

Using Ohm's law

R=\frac{V}{I} \\R=\frac{81V}{3A}=27Ω

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3 years ago
Heavenly bodies that travel around a planet are called satellites or moon which planet has no satellite or moon
IceJOKER [234]

Answer:

i think its A. i dunno if it is btw have a nice day

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3 years ago
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Compared to humans, elephants have a dramatically low instance of cancer. Elephants have multiple copies of the
Yanka [14]

Elephants have multiple copies of the p53 genes that play an important role in the control of cell division.

<h3>What is the role of p53 genes in elephants?</h3>

P53 is an important regulator of the DNA repair processes and controls uncontrolled cell proliferation. When DNA is harmed, the protein becomes active and aids in orchestrating a response that stops DNA replication and fixes any incorrect copies of the cell. The oncogene MDM2 E3 ubiquitin ligase, another protein, is responsible for deactivating the p53 repair activity in duplicated cells with intact DNA since it is not required.

A human with only two alleles from a single gene has much fewer molecular anti-cancer interactions than an elephant, which has 40 alleles, or versions, from its twenty p53 genes. Although the elephant may appear to have excessive genetic diversity, each of its 40 alleles is structurally slightly different.

I understand the question you are looking for is this:

Compared to humans, elephants have a dramatically low instance of cancer. Elephants have multiple copies of the _____ genes that play an important role in the control of cell division.

Learn more about p53 genes here:

brainly.com/question/19581609

#SPJ4

6 0
2 years ago
How does the movement of materials across the cell membrane relate to an<br> organism’s survival?
ioda

I believe it relates because as we know the cell membrane is permeable meaning that allows oxygen, carbohydrates, food to enter the cell but it doesn't allow the entrance of large molecules that harm the cells.

After all the movement around it, matters because for example without food the mitochondria won't be able to create the energy and then with that energy, the nucleus to use it to complete the main the activities of the cell.

Hopefully this what you meant when you asked the question. Have a nice day/evening

8 0
3 years ago
A report on the structure of the plasma membrane and its role in maintaining the cell
ycow [4]

<em>The structure of the plasma membrane is to protect the cell from its surroundings. The plasma membrane is composed of a bilayer of phospholipids, with their hydrophobic, fatty acid tails in contact with each other. The landscape of the membrane is studded with proteins, some of which span the membrane. Some of these proteins serve to transport materials into or out of the cell. Carbohydrates are attached to some of the proteins and lipids on the outward-facing surface of the membrane. These form complexes that function to identify the cell to other cells. The fluid nature of the membrane owes itself to the configuration of the fatty acid tails, the presence of cholesterol embedded in the membrane (in animal cells), and the mosaic nature of the proteins and protein-carbohydrate complexes, which are not firmly fixed in place. Plasma membranes enclose the borders of cells, but rather than being a static bag, they are dynamic and constantly in flux</em>.

Hope this helped you-have a good day bro cya)

7 0
3 years ago
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