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kati45 [8]
3 years ago
13

HELPPPPPPPPP

Biology
1 answer:
belka [17]3 years ago
3 0
Answer : B turning off gene expression

Hope this helps. - M
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The main site for photosynthesis in plants is the
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leaves

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The main site for photosynthesis in plants are the leaves. Leaves are the main spot of a plant where you can see photosynthesis occur.

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The technique psychologists use to measure electrical activity in the brain is 1. EEG 2. Lesion 3. FMri 4. CAT Scan 5. PET Scan
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Answer:

The correct answer is 1. EEG.

EEG or electroencephalography is a technique used to measure the electrical activity of the brain.

8 to 16 pairs of electrodes are placed on the scalp which record the electrical activity or impulses (in volts) generated by thousands of neurons or nerve cells present in the brain.

It provides the real-time imaging of the electrical activity of the brain.

The recorded impulses are first sent to the amplifier as the magnitude of the brain's electrical impulses is very low.

The amplifier then amplifies the results and show it on the screen in the form of voltage units.

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3 years ago
Which of the following temperature scales is not regularly used in science?
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The answer is Fahrenheit because it doesn't convert well with the other two. thanks i hope this helps and please give me a brainiest answer i need four to advance to the next rank.
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3 years ago
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two pure breeding lines of pea, one tall and hairy, the other short and smooth, are crossed. the f1 hybrid is tall and hairy. th
wolverine [178]

The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups.

<h3>How do phenotypic classifications work?</h3>

The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups. If any of the single homozygous recessive genotypes (i.e., A bb or aaB_) exhibits the same phenotype as the double homozygous recessive (aabb), then a 9:3:4 phenotypic ratio will result.

<h3>What does phenotypic classification entail?</h3>

phenotype, all of an organism's observable traits that emerge from the interaction of its genotype (total genetic inheritance) and environment. Observable features include things like behavior, biological characteristics, colour, shape, and size.

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8 0
1 year ago
He tells his students that _____ in the ______ help coordinate contraction of certain muscles and relaxation of others. Answers:
krek1111 [17]

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A. motor neurons; peripheral nervous system

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Motor neurons carry signals from the peripheral nervous system to the muscles. This causes the muscles to either relax or contract. Note that the peripheral nervous system consists of neurons and parts of neurons outside of the central nervous system which consists of the brain and spinal cord. When signals are transmitted between the motor neurons and peripheral nervous system, this causes a response to stimulus in the muscles which would either, relax or contract.

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4 years ago
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