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IrinaK [193]
3 years ago
10

Nucleotides are the basic unit of what macromolecule

Biology
1 answer:
Afina-wow [57]3 years ago
5 0
DNA (deoxyribonucleic acid)
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Which of the following describes an interaction between the endocrine system and the excretory system?
blondinia [14]
The answer would be c. This is because hormones are apart of the endocrine system and dispose of extra salt in the body. Helping with urinating is part of the excretory system.

Hope this helps :)
8 0
3 years ago
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Which of the following is a correct difference between active transport and facilitated diffusion?
sweet-ann [11.9K]

Answer:

Active transport requires energy from ATP while facilitated diffusion does not

Explanation:

Active transport and facilitated diffusion with the use of channel and carrier proteins are both ways by which ions, polar and large molecules cross a selectively permeable membrane.

The major difference is that; Active transport transport these particles from a low to high concentration, which is against concentration gradient and hence, energy is required to perform the task

Facilitated diffusion transport from a high to low concentration, which is through a concentration gradient and hence, no energy is required to perform the task.

6 0
3 years ago
Explain how the human body cools itself.
Annette [7]

Hi there!


There is a way that the human body cools itself, but it sounds so weird!


Did you know that when you sweat after doing something constantly, the sweat tries to cool the body down? It's true!


I learned this is physical science class, and we tested it for ourselves. We ran around a bunch of times around my old school and then we started sweating. Not too long afterwards, we started cooling down because of the sweat.


Weird, right?


Hope this helps!

Message me if you need anything else! :D

6 0
3 years ago
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Where is skeletal muscle found?
Diano4ka-milaya [45]
Your skeletal muscle is found between the bones
3 0
3 years ago
Patches of fibrocartilage formed in the healing of a fracture are called __________, whereas the bony collar formed around the f
SashulF [63]

Answer:

Patches of fibrocartilage formed in the healing of a fracture are called <u>soft callus</u>, whereas the bony collar formed around the fracture is called <u>hard callus</u>.

Explanation:

In the fibrocartilage or soft bone callus phase, the necrotic bone is removed by osteoclastia and dead soft tissues are being removed by macrophages. The fibroblasts are activated and a granulation tissue is generated that supposes the appearance of new vessels and, with them, the arrival of more connective tissue cells. A tissue called fibrous callus or fibrocartilage begins to form, composed of a poorly structured amalgam of fibrous tissue, cartilage, and amorphous bone.In hard callus, bone and later cartilage are deposited in the growing historical mass. The two collars of callus,  fixed to the bone at some distance from the fracture, they grow upwards and towards each other, forming an arc  on focus.

7 0
2 years ago
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