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pochemuha
3 years ago
8

A student wants to answer the question “Does adding calcium powder to soil make pea plants grow faster?” She adds calcium powder

to the soil of 12 plants and does not add it to the soil of a second group of 12 plants. She measures the growth of all of the plants in each group for a month. Which statement best summarizes the factors that need to be controlled in this experiment?
Biology
1 answer:
Serhud [2]3 years ago
7 0
<span>All plants should be the same age and health and be given equal amounts of water and sunlight.</span>
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Assume a population is in Hardy-Weinberg equilibrium for the B gene, which has two alleles, B and b. In this population of 100,0
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Answer:

160

Explanation:

If p = frequency of dominant allele and q = frequency of recessive allele according to Hardy-Weinberg equilibrium,

p + q = 1

p² + 2pq + q² = 1

where p² = frequency of dominant homozygous genotype

q² = frequency of recessive homozygous genotype

2pq = frequency of heterozygous genotype

Here,

b = 4% = 0.04

bb = 0.04 * 0.04 = 0.0016

Number of individuals in population = 100000

Number of homozygous bb individuals = 0.0016 * 100000 = 160

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A cast is the final step that shows the mold. No cast? No mold.

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a researcher proposes a model of an enzyme catalyzed reaction in which reactant is converted to a product. The model is based on
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Answer:

<u>The enzyme's active site binds to and stabilizes the transition state, which decreases the activation energy of the reaction.</u>

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