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egoroff_w [7]
3 years ago
5

The concentration of atmospheric carbon dioxide is currently decreasing due to human activities. Please select the best answer f

rom the choices provided T F
Biology
2 answers:
ICE Princess25 [194]3 years ago
8 0
Your Answer would be FALSE
Sliva [168]3 years ago
7 0
The answer would be false, i hope this helps
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After each step in a dichotomous key the steps get ____?
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A gradual change in the environment takes place slowly over a long period of time.
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To measure the population of lake trout in a 250-hectare lake, 400 individual trout were netted and marked with a fin clip, then
kenny6666 [7]

Answer:

Estimated size is 1600

Explanation:

Given data:

Size of lake is 250 hectares

Total number of trout who netted is 400

Total number of trout in next week is 200

Total number of trout having fin clip 50

estimation population size is estimated by mark rupture as follow

Estimated population size = \frac{(marked\ initally \times total\ recaptured)}{mark\ recaptured}

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Estimated size is 1600

4 0
3 years ago
Excretion is the process of removing wastes and excess water from the body.<br><br> True <br> false
JulijaS [17]
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3 0
3 years ago
A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. if he marries a woman who is also
kakasveta [241]
<span>F- allele for freckles
f- </span><span>allele without freckles

1) The man is heterozygote and has freckles, its indicating that the allele for freckles is dominant.
A cross between him and a woman who is also </span><span>heterozygote: Ff x Ff
it would result in the following probabilities:
- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff

Their son would have a probability of 75% of being born with freckles.


2) The cross resulted in this probabilities:
</span><span><span>- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff
So, the chance of being born heterozygote for this gene is 2/4, which is the same as half (50%).
</span></span>
6 0
3 years ago
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