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3 years ago

What kind of relationship do these

Biology

1 answer:

Lisa [10]3 years ago

7 0

Answer:

a.commenslism

Explanation:

hope it helps

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Describe what it means if a muscle is striated and what it means if a muscle is said to be under voluntary control.

lions [1.4K]

Answer:

When a muscle is said to be striated it is striped and a muscle that is said to be under voluntary control is being able to move it on command / voluntary movement unlike involuntary movement.

3 0

3 years ago

True-breeding flies with singed bristles (s) and normal wings (L) were crossed to true-breeding flies with normal bristles (S) a

mina [271]

Answer:

The correct answer is -

Possible F2 offspring genotypes and phenotypes:

SsLl: normal bristle, normal wing

Ssll: normal bristle, vestigial wing

ssLl: singed bristle, normal wing

ssll: singed bristle, vestigial wing

Explanation:

In this case, the genes 's' and 'L' and genes 'S' and 'l' are linked, they will be passed on to the gamete together.

The cross would be as follows:

F1:

Parents: singed bristles and normal wings x normal bristles and vestigial wings

Genotype: ssLL SSll

Gametes: sL Sl

F1: SsLl ( normal bristles and normal wings )

For F2,

Parents: normal bristles and normal wings x singed bristles and vestigial wings

Genotypes: SsLl ssll

Gametes: SL, Sl, sL, sl

Cross:

SL Sl sL sl

sl SsLl Ssll ssLl ssll

Thus the possible offspring will have -

SsLl: normal bristle, normal wing

Ssll: normal bristle, vestigial wing

ssLl: singed bristle, normal wing

ssll: singed bristle, vestigial wing

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3 years ago

_______ is a brain-imaging technique that shows us precisely which areas of the brain are active at a particular moment in time;

expeople1 [14]

The answer is "PET scan" or "PET-CT".

PET scan or positron emission tomography uses the technology behind conventional CT scans but performs to quantify the function in specific parts of organs (i.e. brain). The patient will be given a positron emitting substance most commonly fluorodeoxyglucose or FDG via intravenous injection. After which, the patient will go to the PET machine and the PET machine will measure the positron emitted throughout the body. Positron is well correlated to the function of a specific part of an organ.

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3 years ago

Which of these is an abiotic element of a desert ecosystem?

exis [7]

The answer is A-Sand

I took a test with that same question and I got it right!.

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3 years ago

Read 2 more answers

14. Nicole is studying plant cells under a microscope. She observes one set of structures that she

tatyana61 [14]

Answer: Yes, many plant cells have both mitochondria and chloroplasts!

Hope this helped! :D

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3 years ago