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Nitella [24]
3 years ago
13

Groups of five plants are given 1, 2, and 3 grams of nitrate and 1, 2, and 3 grams of phosphate in all combinations over a perio

d of one month. The researcher measures plant height and weight at the end of the experiment. What is missing in this experimental design?
Question 9 options:

a control

an independent variable

a dependent variable

a constant
Biology
1 answer:
snow_tiger [21]3 years ago
3 0

Answer:

a control

Explanation:

you need something to compare it to to see if anything happens

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AysviL [449]

Answer:

A DNA sequence codes for the same proteins in different species

Explanation:

All living organisms store their genetic information in DNA (genetic material). The manner through which information in the genes are encoded is the GENETIC CODE. The genetic code comprises of all the codons that specifies amino acids in living organisms. The genetic code has several characteristics, which includes that the GENETIC CODE IS UNIVERSAL

The genetic code is said to be universal because all known living organisms use the same genetic code to encode their genetic information. This means that a DNA sequence codes for the same proteins in several different species. For example, codon AUG encodes the amino acid METHIONINE in every living organism.

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Answer:

False

Explanation:

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