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Lelu [443]
2 years ago
8

In which biome would you likely find primarily evergreens, such as pine, fir, and spruce?

Biology
1 answer:
SSSSS [86.1K]2 years ago
8 0
My guess is taiga? if there are options go with the closest to that
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Use the terms below to complete the sequence of the levels of organization in a multicellular organism.
Valentin [98]
Cells -> Tissues -> Organs -> Organs systems -> Organisms
6 0
3 years ago
Jill stepped on a tack. Which part of the central nervous system caused her foot to move off the tack quickly in a reflex respon
Veseljchak [2.6K]

Answer: Spinal cord.

Explanation:

The spinal cord of the central nervous system helps to move off quickly as a part of the reflex response. Jill stepped on a tack and suddenly he realizes that he should quickly move his legs out of the tack.

The pain is not stimulated until the signals reaches from the receptor to the brain. The formation of the reflex arc ensures that the amount of potential tissue damaged is less.

It forces the body to move quickly from the place that is causing damage.Example: Moving the leg up involuntarily when stepped on pin.

This occurs because the sensory neurons connects to the motor neurons within the spinal cord.This leads to the contraction of bones and muscles.

Hence, the correct option is spinal cord.

4 0
3 years ago
The interaction between DNA and histone proteins (forming nucleosomes) plays a key role in the regulation of gene expression in
ladessa [460]

Answer:

A. The chromatin near cis-regulatory sequences will be more closed and there will be less transcription.

Explanation:

In the presence of histones, the cis-regulatory sequences of DNA like promoter, enhancers etc. are not exposed. The function of the histone acetyltransferases (HATS) is to cause chromosome decondensation i.e. removal of histones from the DNA so that transcription of the DNA could occur. Histone acetyltransferases (HATS) cause acetylation of lysine amino acid of the histone proteins. Acetyl group is negatively charged so the acetylation of histone proteins leads to the removal of their positive charge which ultimately leads to the decrease in the interaction between N terminal of histones and negatively charged phosphate group of the DNA molecule. As soon as histones are removed from the DNA where cis-regulatory sequences are located, the DNA becomes accessible for transcription.

But here a drug has been added which blocks the activity of histone acetyltransferases (HATS) in cancer cells. So it is quite evident that in these cells, histones will not get removed from the cis-regulatory sequences of DNA so the DNA will be more closer or tightly packed as a result of which  less transcription will occur.

7 0
3 years ago
The term for energy of movement
lara31 [8.8K]

Answer;

-Kinetic energy

Explanation;

The energy associated with motion or movement is called kinetic energy.

-Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy is stored energy and the energy of position; gravitational energy.

-An object that has motion - whether it is vertical or horizontal motion - has kinetic energy. Kinetic energy is calculated by the formula 1/2mv², where m is the mass of the object and v is the velocity of the object.

-Therefore, kinetic energy depends upon two variables: the mass (m) of the object and the speed (v) of the object.


5 0
3 years ago
how do mosses, ferns, gymnosperms, and angiosperms reproduce? general ideas with similarities and differences is what we’re look
lord [1]

Answer:

angiosperms and gymnosperms away from water, mosses and ferns with water

Explanation:

Pollen allows angiosperms and gymnosperms to reproduce away from water, unlike mosses and ferns which require water for sperm to swim to the female gametophyte.

4 0
3 years ago
Read 2 more answers
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