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Alika [10]
3 years ago
6

When observations, over time, repeatedly support an assumption, the assumption comes to be known as a principle true or false

Biology
1 answer:
pentagon [3]3 years ago
8 0
True......................
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D. All biotic factors

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Redi's experiments were accepted by all as proof of the theory of biogenesis.
Charra [1.4K]

Answer: True.

Explanation: Francesco Redi was a scientist who designed an experiment to test the spontaneous creation of maggots. It consisted of placing fresh meat in two different jars; one of them was left open (so flies could enter) while the other was covered with a cloth.

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4 years ago
Plz im kinda stuck we never learn anything in class​
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Take a clearer picture and upload and I’ll see if I can help ♥️
7 0
3 years ago
In a population of cats, the phenotypic frequency of black cats is 91%, and the phenotypic frequency of white cats is 9%. Assumi
Talja [164]

Answer:

1. Allele frequency of b = 0.09 (or 9%)

2. Allele frequency of B = 0.91 (0.91%)

3. Genotype frequency of BB = 0.8281 (or 82.81%)

4. Genotype frequency of Bb = 0.1638 (or 16.38%)

Explanation:

Given that:

p = the frequency of the dominant allele (represented here by B)  = 0.91

q = the frequency of the recessive allele (represented here by b)  = 0.09

For a population in genetic equilibrium:

p + q = 1.0 (The sum of the frequencies of both alleles is 100%.)

(p + q)^2 = 1

Therefore:

p^2 + 2pq + q^2 = 1

in which:  

p^2 = frequency of BB (homozygous dominant)

2pq = frequency of Bb (heterozygous)

q^2 = frequency of bb (homozygous recessive)

p^2 = 0.91^2 = 0.8281

2pq = 2(0.91)(0.9) = 0.1638

4 0
3 years ago
Channel proteins and carrier proteins are both a type of transport protein. t or f
Romashka [77]

Answer:True

Explanation:

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4 years ago
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