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e-lub [12.9K]
2 years ago
7

1. Which of the following provides the best evidence that living things use and

Biology
1 answer:
Rina8888 [55]2 years ago
8 0

Answer:

b. The cells of living things contain molecules made of the elements carbon, hydrogen, and

oxygen, the same elements found in the glucose consumed by living things.

Explanation:

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A heterozygous, three-horned alien from Mercury has met and fallen in love with a four-horned alien from Jupiter. What would hap
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Because the three-horned alien is heterozygous, we know that three must be dominant to four, because the gene for the three horns is "hiding" the gene for four horns. Therefore, the three-horned alien has the genotype Tt (T for three horns, and t for four horns). The four horned alien must be tt, because that is the only way that a recessive trait may be seen.  If you solve the punnet square on a cross between Tt and tt, you end up with half three (heterozygous) and half four (homozygous recessive) it is a bit easier to explain with something a little "closer to home" if you want me to explain it again, just say so, I don't mind!
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3 years ago
I WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!
Alex Ar [27]

Answer:

a

Explanation:

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2 years ago
Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
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3 years ago
Explain how water, glucose and mineral salts are transported through a plant
spayn [35]

Answer:

Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

 

pls mark brainliest. Thank you

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2 years ago
what variable is measured in a experiment? A. independent variable B. experimental variable c. Dependent variable
Damm [24]
C. Dependent variable

The independent variable is what you want to change (ex amount of light given to plants)

The dependent variable is what changes because of the independent variable (ex the height of the plants)

So Independent is what you change, Dependent is what you measure
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