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Sedbober [7]
3 years ago
14

An educated guess or rational explanation about a specific phenomenon

Biology
1 answer:
Step2247 [10]3 years ago
6 0
Hypothesis: <span>An educated guess or rational explanation about a specific phenomenon</span>
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Does fruit salad go through a chemical change ?
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Answer:

(3) Rusting of almirah is a chemical change since during rusting, a new chemical compound called hydrated iron oxide (rust) is formed. ... (7) Making a fruit salad with raw fruits is a physical change since there is no change in the chemical properties of the fruits but only the physical appearance has changed.

Explanation:

I just got it right on my test

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During the process of fertilization, which step happens first?
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A Sperm attaches to an Ooctye
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Water blank when it becomes ice​
kolezko [41]
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A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

q^2\\= (0.3)^2\\= 0.09

As per Hardy-Weinberg's second equation of equilibrium

p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42

Hence, option C is correct

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3 years ago
What is one of the causes of mechanical weathering?
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Carbon dioxide hopefully I think ❤️
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