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nikklg [1K]
3 years ago
10

DESCRIBE what activation energy is.

Biology
2 answers:
Trava [24]3 years ago
8 0
Minimum energy required to start a chemical reaction
Semmy [17]3 years ago
5 0
Activation energy is the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.

for example , striking a match on the side of a matchbox provides the activation energy, in the form of heat produced by friction.
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What the process and energy needed?
leva [86]

Answer:

C. Diffusion and no energy needed.

Explanation:

A - Passive transport doesn't require energy.

B - Osmosis would be if the 25% H2O went into the 82%

D - Active transport doesn't apply because molecules aren't moving across into a higher concentration.

Diffusion is when parts of the 82% go into the 25%.

6 0
2 years ago
Please help thanks .
Yuliya22 [10]

Answer:

D. It will be smaller than today's population

Explanation:

This is because the death mortality will be highly lowered

6 0
2 years ago
Read 2 more answers
Energy from the sun comes from fusion. What happens during that reaction?
dmitriy555 [2]
Hey there, 

Your answer is:

<span>Hydrogen turns into helium. 
</span>
Hope this helps...Good Luck
8 0
3 years ago
Drag each tile to the correct location.
OLEGan [10]

Answer:

Plant-like:

presence of flagella

shows the absence of cell wall, though chloroplast may be present

Animal-like:

absence of cell wall, as well as chloroplast

Fungus-like:

feeds on decaying matter

enclosed by a membrane called a pellicle

slime mold belongs in this category

Explanation:

The protists can be classified into three groups (plant-like, animal-like, fungus-like) based on the method of nutrition, movement, and mode of reproduction.

Plant-like protists have chloroplasts and trapped sunlight to form food ad energy (photosynthesis). They also have flagella used for the movement.

Example: Algae

Animal-like protists are heterotrophs that cannot make their food. They do not have chloroplast and cell wall outside the cell membrane.

Example: Protozoa

Fungus-like protists are single-cell eukaryotes that have a protective layer outside the cell membrane called pellicle. They feed on decaying organic matter.

Example: Slime mold and water mold

7 0
3 years ago
For scanning a slide ___ power is usually used
Dmitrij [34]
Low power is usually used for scanning a slide. This lets the person see more of the slide at once.
4 0
3 years ago
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