BIOLOGY HIGH SCHOOL

All of the chemical reactions within an organism is known as_____.

Answers

Answer 1
Answer: I think it's Metabolism. 
Answer 2
Answer:

I think it's Metabolism.

is right

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Which of the following ideas is supported by Darwin's observations of local variation among tortoises in the Galapagos islands?A: artificial selection
B: adaption
C: acquired characteristics
D: tendency towards perfection

Answers

B adaption because galapagos islands the is like no food

Which of these statements about osmosis and active transport is NOT correct? A) Both endocytosis and active transport require cell energy.

B) Osmosis requires cell energy while active transport does not.

C) Neither faciliated diffusion nor osmosis requires cell energy.

D) Diffusion of gases and other small molecules requires no energy on part of the cell.

Answers

Answer:

The correct answer would be option B.

Osmosis refers to the passive movement of water down the concentration gradient across a semi-permeable membrane. Thus, it does not require cell energy.

In contrast, active transport requires cell energy as it transports substances across the cell membrane against the concentration gradient, that is, from the region of low concentration to the region of high concentration.

It usually gets energy by ATP hydrolysis.

Examples may include sodium-potassium pump, GLUT transporters in intestinal cells et cetera.
B)bcz osmosis donot require energy but active transport does require energy

Horses and zebras can be bred to produce a zorse, which is sterile. Which is most likely the reason zebras and horses are considered separate species?

Answers

For an organism to be considered as same species, it is important that their progeny can mate and produce viable offspring for generations. In this case, the mating of zebra and horse does not produce a fertile offspring, hence, their offspring cannot produce future generation, so, they cannot considered to be in same species.

Moreover, there are difference in the number of chromosome in between zebra and horse, and the zorse's number of chromosome is also different from the zebra and horse. In a species, the number of chromosomes must be same, so, this is also a factor, why they are not considered as a same species.

Because they cannot breed together to provide fertile offspring. (If their children cannot have children they are most likely to be considered separate species)

Which of the following conduct the most pollination for angiosperms? squirrels
butterflies
birds
bees

Answers

In this item, we are given with four insects and animals: (1) squirrels, (2) butterflies, (3) birds, and (4) bees. we are to determine which among them conduct the most pollination for angiosperms. The answer to this item is bees. That is the fourth among the choices.
Bees are the most responsible organsism for pollination in angiosperms. They take nectar from the flowers of angiosperms,and bees take the pollen.When bee visits other plan, they may leave the pollen there and cause pollination. This is a mutual relationship.

In the 1800s the most widely favored explanation of genetics was "blending." Explain the concept of blending, and then describe how Mendel’s "particulate" (gene) hypothesis was different.

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I need the answer to!!!

A single atom of gold can be

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neither a molecule or a compound xD
a molecule is usually reserved to represent the smallest particle of a compound.    
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