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balandron [24]
3 years ago
11

Which best defines genes?

Biology
1 answer:
Y_Kistochka [10]3 years ago
5 0
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases
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Explain the functions of the spiral cord​
AURORKA [14]

Here you go

The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. The human spinal cord is protected by the bony spinal column shown to the left. The spinal column is made up of bones called vertebrae.Information (nerve impulses) reaching the spinal cord through sensory neurons are transmitted up into the brain.

Hope it helps

Please mark me as Brainliest

5 0
3 years ago
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Tiger beetles are such fast runners that they can capture virtually any nonflying insect. However, when running toward an insect
Delicious77 [7]

Answer:

The correct answer is option (B) "In pursuing a swerving insect, a beetle alters its course while running and its pauses become more frequent as the chase progresses".

Explanation:

One hypothesis suggest that the tiger beetles stop for a moment when they attack because it can't keep its pace and they have to rest, while the other hypothesis suggest that the tiger beetles could not process the rapidly changing visual information when running. The experiments results would support only the second hypothesis if they show that in pursuing a swerving insect, a beetle alters its course while running and its pauses become more frequent as the chase progresses. If a beetle altering its course have to stop more often than a beetle running straight, it would make sense that it has to stop because is unable to process the changing visual information rapidly enough.

7 0
3 years ago
Why are tissues necessary?
alukav5142 [94]

Answer:

The tissues are essential because it represents a level of organisation in living organisms. Tissues also function by transporting nutrients and connects bones and other body parts.

Explanation:

6 0
2 years ago
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Examine the diagram of the cell cycle. Which label identifies the stage in which the DNA is copied and the cell grows? W X Y Z
kondor19780726 [428]

The right answer is Y (G2 phase).

The interphase is the moment when the cell lives and does everything for which it is programmed. She is also preparing to divide. The steps of the division are detailed below:

Phase G1 (W) comes from a word "GAP" (= interval). During this phase, the cell performs its normal metabolism, it grows to a critical size that will give the signal to move to phase S which consists of replicating the nuclear DNA (X).

Once DNA replication is complete, phase G2 begins (The letter Y). Here, the growth of the cell end, but it will continue to fulfill its functions. During this phase, the centrosomes replicate, they will allow the smooth course of the mitosis. This phase ends by passing the G2 checkpoint, where the mitosis begins.

The shortest phase (Z) is M phase (mitosis / meiosis).

(I don't know if it is the same diagram but i mean this one)

4 0
4 years ago
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What shark is georgia’s official state fossil?
bekas [8.4K]

Answer:

The shark tooth is designated as the State of Georgia's official fossil.

Explanation:

3 0
4 years ago
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