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2 years ago

What macromolecule is made up of nucleic acids?

Biology

2 answers:

Salsk061 [2.6K]2 years ago

7 0

RNA.

Explanation: nucleic acid makes up both RNA and DNA.

lesya692 [45]2 years ago

3 0

Answer:

RNA

Explanation:

Macromolecules made out of units called nucleotides, come in two naturally occurring varieties: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). :)

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A source from which organisms generally take elements is called

Anit [1.1K]

Answer:

A source from which organisms generally take elements is called exchange pool (option B).

Explanation:

Options for this question are:

Food web.
Exchange pool.
Reservoir.
Biotic community.

The term exchange pool is related to the biogeochemical cycles that exist in nature, referring to the source from which elements present in the environment become part of living organisms.

Exchange pools are the biotic components -like animals and plants- of an ecosystem, which determine the passage of elements between living beings. An element can remain as a reservoir (abiotic) in the soil, and then be incorporated into the exchange pool.

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3 years ago

You are doing research on a bacterial species, trying to determine the nature and structure of a number of intracellular inclusi

Mashcka [7]

Answer:

Transmission Electron Microscope.

5 0

2 years ago

If a plant has the TtSs genotype, what would the genotypes of its gametes be? A. Tt, Ss, TS, and ts B. TT, tt, SS, and ss C. TS,

FinnZ [79.3K]

The genotypes of its gametes would be TS, tS, Ts, and St. This would mean the answer would be C. Hopefully this helps you.

6 0

3 years ago

Two insecticides will be compared for their effectiveness in eliminating aphids on tomato plants. Forty tomato plants of the Big

densk [106]

Answer:

The t-test

Explanation:

The researcher should use a t-test to compare the two means and check if they are significantly different from each other.

In using the t-test, both null (H0) and alternate (H1) hypothesis are made such that:

H0: n1 = n2
H1: n1≠ n2

Thereafter, the value of t is calculated and compared to its critical value on the table. The formula for calculating the t goes thus:

$t = \frac{Y_1 - Y_2}{\sqrt{\frac{S_1}{n_1} + \frac{S_2}{n_2} } }$

where, Y1 = mean of population 1, Y2 = mean of population 2, S1 = variance of population 1, S2 = variance of population 2, n1 = number of individuals in population 1 and s2 = number of individuals in population 2.

At the end of the day, if the calculated t value is more than the critical value of t, the H0 is rejected and it shows that the two means are significantly different. Otherwise, the H0 is accepted and this shows that there is not significant difference between the mean of population 1 and that of 2.

7 0

3 years ago

Which would you expect to be more fertile: the soil on a hillside or on a valley floor? why?

Whitepunk [10]

The soil on the valley floor because it would not have runoff. Hope this helps.

5 0

3 years ago