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IgorLugansk [536]
3 years ago
10

A student is instructed to record the odor of a substance after heating it in a test tube. Which is the

Biology
2 answers:
Grace [21]3 years ago
4 0

Answer:

A Wave the fumes from the test tube toward the nose with a hand and inhale

Explanation:

Vedmedyk [2.9K]3 years ago
3 0

Answer:

A. Wave the fumes from the test tube toward the nose with a hand and inhale

Explanation:

Hope this helps

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Which cells quickly respond to produce antibodies on second exposure to the same antigen?
Vilka [71]

Answer:b-cells produce antibodies or (memory b-cells)

Explanation:B cells are one of the two types of lymphocytes, the other kind being T cells. B-cells have a very specific function: the production of antibodies, which play a major role in immunity. Memory cells remember specific foreign invaders, pathogens, and antigens to fight them off if they come back in the future.

6 0
3 years ago
A fly has two alleles for the color of its eyes. The green allele is recessive, and is represented by Q. The blue allele is domi
Kruka [31]

The value of Q is 0.44 if 20 organisms of 100 organisms are green.

Explanation:

Data given:

alleles for the color of eyes of fly:

blue allele = dominant represented by P

green allele = recessive, represented by Q

total number of organism = 100

number of recessive trait organism, q^{2} = 20

Q =?

The allele frequency of the green eye is calculated as:

\frac{total number of recessive alleles}{total number of all alleles}

= \frac{20}{100}

q^{2}= 0.2

q = \sqrt{0.2}

q = 0.44

0.44 is the frequency of Q allele in the population.

Q is the homozygous recessive alleles in the population and its value is 0.44.

5 0
3 years ago
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All living things that lack a nucleus are called prokaryotes<br>True or false
ipn [44]
Despite these similarities, prokaryotes and eukaryotes differ in a number of important ways. A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.
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3 years ago
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A young woman was going on a walk through the woods when she felt a mosquito bite her. She has a history of large local reaction
zhenek [66]

Answer: uhh

Explanation: i need points

7 0
3 years ago
Which of the following kinds of questions cannot be answered within the
o-na [289]

Answer:

I believe the answer is B. Questions about the value of scientific knowledge

Explanation:

Because we are still learning new things and a piece of scientific knowledge that is not so useful now could end up being way more useful for something we have not discovered yet.

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