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Advocard [28]
3 years ago
10

Observation:most plants have green leaves

Biology
1 answer:
Kitty [74]3 years ago
7 0

Chlorophyll is a pigment found in the thylakoid membranes of the chloroplasts in the leaves. This is why plants are green. The simple answer is that plants are green because they have green chloroplasts.

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Why social relationships are necessary for the survival of human being​
prisoha [69]

Answer:

They help you live longer

Explanation:

Research has shown that social connections not only impact your mental health, but your physical health as well. A review of 148 studies (308,849 participants) indicated that individuals with stronger social relationships had a 50% increased likelihood of survival.

3 0
2 years ago
Most sidewalks are made out of solid concrete sections. There are spaces between the sections. What happens to the spaces during
VladimirAG [237]

Answer:

The options are :

The spaces get wider because the concrete sections shrink.

The spaces stay the same because the concrete sections does not shrink or expand.

The spaces get narrower because the concrete sections expand.

Some spaces get wider, some spaces get narrower, and some spaces stay the same because each concrete section behaves differently on a hot summer day.

The answer is

Some spaces get wider, some spaces get narrower, and some spaces stay the same because each concrete section behaves differently on a hot summer day.

Concrete surfaces react with a change in temperature by either shrinking or expanding depending on the temperature difference.

When there is an increase in temperature it expands a bit and shrinks a bit too when the temperature is decreased.

5 0
3 years ago
One piece of evidence for the endosymbiotic theory is that the mitochondria and chloroplasts of eukaryotes _____.. . A.self-repl
Olenka [21]
<span> D.all of the above

</span>

Mitochondria and chloroplasts have striking similarities to bacteria cells. They have their own DNA, which is separate from the DNA found in the nucleus of the cell. And both organelles use their DNA to produce many proteins and enzymes required for their function. A double membrane surrounds both mitochondria and chloroplasts, further evidence that each was ingested by a primitive host. The two organelles also reproduce like bacteria, replicating their own DNA and directing their own division.


6 0
3 years ago
The primary organic source of energy for living things are
GarryVolchara [31]
The sun is the primary source of energy for living things mostly organisms like plants and ecosystems. But if you're talking about the bonds inside organic molecules, which are carbohydrates. With this, the energy from the sun gets trapped within a chemical bond and still relates to photosynthesis in plants.
7 0
3 years ago
What kinds of evidence and scientific techniques could the biologists use to determine the evolutionary relationship of the clou
MA_775_DIABLO [31]

Answer:

im christian i dont believe in evolution

Explanation:

i can talk to you about creation though?

6 0
2 years ago
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