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Ann [662]
4 years ago
12

NEED HELP ASAP PLEASE WITH #20!! Am I right? Not sure, please help thank u

Biology
1 answer:
Vesnalui [34]4 years ago
7 0

Answer:

it's a molecule

Explanation:

if it was just hydrogen it would be an atom, but when you add another element it becomes a molecule.

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Answer:

haploid gamete cells

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3 years ago
Nitrites are often added to meat products as preservatives. in a study of the effect of these chemicals on bacteria, the rate of
tatyana61 [14]
Nitrites are 307880 115 and control is 30 8112 1250
Let X be nitrate group and let Y  be a control group.
If ∪X-∪Y∠0 then we can say that nitrates decrease the number of amino acids which is taken.
Hypothesis test.
H0:∪X-∪Y=0Vs. Where H1:∪X-∪Y∠0.
Sample for X = 7880 and Y = 8112 and Sx∧2=variance sample for X = 1115∧2 = 1243225 and Sy∧2 = variancesample for Y= 1250∧2 = 1562500. The size of the sample = 30 for both cases.
Test statistics is Z =((7880-8112)-0)/squareroot (1243225/30+1562500/30) = 0.758623)
Value of P = P(Z∠z)
=P(Z∠-0.758623).
Since P-value is greater than the importance of 0.02, we can not reject the null hypothesis. The conclusion is that ∪x-∪y =0 a good example is nitrates does not decrease the number of amino acid which is taken.
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3 years ago
A basic observation of a star is how bright it appears. This brightness is known as the star's
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Star brightness is defined by either <span>D. apparent magnitude - when we measure it from Earth (that is how bright it is from Earth) - this is the closest to "basic observation" and the best answer

or by absolute magnitute - how bright it would be at a certain distance (this allows to compare the brightness).


</span>
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4 years ago
Read 2 more answers
A scientist is on-site studying a coral reef food web. What can you infer about her location? *
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Answer:

she is in a submersible near the ocean floor.

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Explain why the small piece of plant tissue is dipped in disinfectant when growing new plants from using cells from a parent pla
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Answer: Disinfectant is a chemical formulation which may include biological components used to reduce the population of a microbe from a living or dead surface.

Explanation:

The plant tissue is treated with a disinfectant before culturing it and growing new plants. This is done to remove dirt, dust, foreign particles like pollen, microbes from the plant tissue surface or from plant part. This help in growth of disease free and contamination free plants. The culture can be utilized for different cycles of plant growth as it remains free from any kind of contamination.

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