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Basile [38]
3 years ago
7

How does friction affect objects?

Biology
1 answer:
nexus9112 [7]3 years ago
5 0
Friction creates heat between two objects rubbing together, and slows the moving object down.
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Explain why facilitated diffusion may need to occur and in what direction the particles diffuse in. Identify the molecules that
Goryan [66]

Answer:

Sometimes molecules cannot move through the cell membrane on their own. These molecules need special transport proteins to help them move across the membrane. Facilitated diffusion is the diffusion of substances with the help of transport proteins in the plasma membrane. These special proteins are called channel proteins or carrier proteins, and they are attached to the cell membrane. In fact, they go through the cell membrane, from the inside of the cell to the outside. Facilitated diffusion is used for molecules that cannot diffuse rapidly through cell membranes on their own, even when the molecules are moving from high to low concentration areas. An example is the sugar plants and animals use for energy, called glucose. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient so it does not require the use of cellular energy.

6 0
2 years ago
HELP
bija089 [108]

Answer:

B

Explanation:

Amino acids fold to form the protein and give it its functionality. Different orders of amino acids fold differently and make a different shape. The shape of the protein defines its function. The function will vary wildly

4 0
2 years ago
A human body cell has 46 chromosomes which diagram Represents Mitosis in a human body cell
Scrat [10]

Answer:

The diagram which shows the formation of two daughter cells is mitosis.

A human body cell has 46 chromosomes when mitosis in a human body cell occurs, the parent cell divides into two daughter cells which has the exact number of chromosome i. e. 46 in each daughter cell. When replication of chromosome occurs, two identical copies of chromosomes are formed.

5 0
3 years ago
What are tube feet?
Margarita [4]

Answer:

Explanation:

(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.

6 0
3 years ago
What is the relationship among genes, chromosomes, and DNA?
horsena [70]
Chromosomes makes up genes while genes and chromosomes make up the entirety of DNA. A living organism inherits 46 chromosomes, 23 from each parent. These chromosomes are not genes but they form genes, which are just the traits of an individual that are unique. DNA is the entire make up of an organism that controls everything about a person such as likelihood to have disease or their physical appearance.

please vote my answer brainliest. thanks!
4 0
3 years ago
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