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Rainbow [258]
3 years ago
12

Which characteristics describe this rock sample? Check all that apply. large crystals coarse texture evidence of rapid cooling f

ine texture evidence of slow cooling small crystals

Biology
2 answers:
Kisachek [45]3 years ago
7 0
The answer is A B E
Lena [83]3 years ago
3 0

Answer:

a, b, e

Explanation:

You just have to pay attention to what you see

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Who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.
Paraphin [41]
LeveneChargaffWatson and CrickNirenberg and Matthaei
4 0
2 years ago
Suppose a population is carrying a condition controlled by two alleles: R (dominant) and r (recessive). Only homozygous individu
White raven [17]

<span><u>The answer is A. 72.25 percent.</u>

The Hardy-Weinberg principle can be used:</span>

<em>p² + 2pq + q² = 1</em> and <em>p + q = 1</em>

where <em>p</em> and <em>q</em> are the frequencies of the alleles, and <em>p²</em>, <em>q²</em> and <em>2pq </em>are the frequencies of the genotypes.

<span>The <em>r</em> allele (<em>q</em>) is found in 15% of the population:
q = 15% = 15/100
Thus, q = </span><span>0.15

To calculate the <em>R</em> allele frequency (<em>p</em>), the formula p + q = 1 is used:
If p + q = 1, then p = 1 - q
p = 1 - 0.15
Thus, </span><span>p = 0.85

Knowing the frequency of the <em>R</em> allele (<em>p</em>), it is easy to determine the frequency of the RR genotype (p²):
p² = 0.85² = 0.7225

Expressed in percentage, p² = 72.25%.</span>

4 0
3 years ago
Is water an abiotic or biotic factor?
nikklg [1K]

Answer:

Abiotic

Explanation: Water is not a living thing, therefore water is an abiotic factor.

3 0
3 years ago
WILL GIVE BRAINLIEST thank you!!
boyakko [2]

Which is not an emotional reaction to stress?

picking a fight

feeling moody or aggressive

noticing your heart racing

bursting into tears more often

6 0
4 years ago
What climate conditions occur during La Niña?
Aleks [24]

Answer:

Stronger prevailing winds and more hurricane activity .

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3 years ago
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