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Nata [24]
3 years ago
5

Is this correct ? ...​

Biology
1 answer:
elena55 [62]3 years ago
7 0

Answer:

The compression-ventilation ratio for CPR is 15 compressions to 2 ventilations. So the answer here is 4, not 2.

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Epinephrine acts as a signal molecules that attaches to ____ proteins.
tia_tia [17]

Answer:

G-protein-linked receptor

Explanation:

Epinephrine acts via G-protein-linked receptors. The heterotrimeric G proteins located within the cell are activated by G protein-coupled receptors that span the cell membrane. Signaling molecules bind to a domain on the GPCR located outside the cell, and an intracellular GPCR domain then in turn activates a particular G protein.

7 0
4 years ago
Which statement is true about photosynthesis?
aleksley [76]

Answer:

during photosynthesis energy from the Sun is stored in chemical bonds of a glucose molecule

5 0
3 years ago
An igneous rock contains
Morgarella [4.7K]
These minerals are quartz, feldspar, mica, and usually hornblende. Granite forms as magma cools far under the earth's surface. Because it hardens deep underground it cools very slowly. This allows crystals of the four minerals to grow large enou
6 0
3 years ago
Which statement is correct concerning the process of ecological succession? Shrubs will replace pines during succession. Primary
Mariana [72]

Answer:

Option (2).

Explanation:

Ecological succession is the change in the ecological community of the species with respect to time. Two  types of the succession are  secondary succession and primary succession.

The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.

Thus, the correct answer is option (2).

3 0
3 years ago
Which is the term for a hormone that acts on the same cell that secreted it? A : limited hormone B : paracrine C : autocrine D :
suter [353]

Answer:

C: autocrine

Explanation:

There are three types of hormones according to where their target cells are.

  • Endocrine: Their target cells are distributed far and they travel via blood to reach the target cells.
  • Paracrine: Their target cells are often their neighbors so they often diffuse to reach them
  • Autocrine: Their secretion acts on themselves. Hence they are their own targets.  
3 0
3 years ago
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