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Andreyy89
3 years ago
13

PLEASE HELP!!! I. NEED HELP IN BIOLOGY FAST!! EXPLAIN!!

Biology
2 answers:
Serhud [2]3 years ago
4 0

Answer:

True

Explanation:

andre [41]3 years ago
3 0

Answer:

True

Explanation:

Most cells are specialised to perform particular functions, such as red blood cells? that carry oxygen around our bodies in the blood, but they are unable to divide. Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost.

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Assoli18 [71]
You produce carbon dioxide and molten iron 
<span>pour off molten iron </span>
<span>mix with limestone and coal </span>
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4 0
4 years ago
A barrier separating the cell’s genetic information from the cell’s cytosol.
malfutka [58]

Answer:

All cells hace a barrier around them that separates them from the environment and from other cell.The barrier is called the plasma membrane,or cell membrane.

8 0
2 years ago
How many major climate types are there,worldwide
professor190 [17]
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4 years ago
If a chemical reaction is reversed, what happens to the enthalpy of the reaction?
nataly862011 [7]

Answer:   C. The sign of the enthalpy of the reaction reverses.

Explanation: Enthalpy of a reaction is the net heat absorbed or released  during a chemical reaction.It is represented by \Delta H. It is negative for exothermic reactions in which heat is released and is positive for endothermic reactions in which heat is absorbed.

When a chemical reaction is reversed the heat of the reaction changes its sign.

CaCO_3\rightarrow CaO+CO_2   \Delta H=+ve

The decomposition of calcium carbonate is an endothermic reaction as heat is required to break the bonds and thus energy is absorbed.

CaO+CO_2\rightarrow CaCO_3    \Delta H=-ve

When the reaction is reversed, the reaction becomes exothermic as now bonds are getting formed and energy is released.

4 0
3 years ago
Read 2 more answers
Answer Under 20-30 minutes and I give a brainiest!!
Nataliya [291]

Answer:

They quickly become fatigued.

Explanation:

1. They use peristalsis to move substances through tubes - True

2. They form structures like blood vessels and the small intestine - True

3. They quickly become fatigued - False

4. They are connected by gap junctions - True

Hope this helped :)

3 0
2 years ago
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