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Phoenix [80]
1 year ago
15

In the excretory system , a waste substance called ______ is filtered out of the blood.

Biology
1 answer:
Kitty [74]1 year ago
8 0

Answer:

urea

ignore this line

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Round seeds are dominant over wrinkled seeds in
antoniya [11.8K]

Genotype - RR - 25%, Rr - 50%, rr - 25% (1:2:1)

Phenotype - Round seeds - 75%, Wrinkled seeds - 25% (3:1)

<h3>How explain your answer?</h3>

Let the letter "r" stand for the alleles, where R is round seeds and r is wrinkled seeds. A genotype is an individual's genes represented through alleles. Phenotypes are how the genes express themselves. In other words, genotypes will be written using letters, the alleles, and phenotypes will be the possible outcomes of the alleles.

Both of the parent seeds have the genotypes Rr and the phenotype of round seeds.

If you create punnet square (which had four boxes in total) 1 will have RR, 2 will have Rr, and 1 will have rr. These are the ratios for the genotypes. Each box represents 25%, so the percentages will be 25, 50, and 25. Finally, 3 of these boxes (RR and Rr) will result in round seeds because those are dominant. Only the genotype rr will result in wrinkled phenotype. Therefore, the ratio is 3:1 or 75% to 25%.

Thus, this could be the answer.

To learn more about genotypes and phenotypes click here:

brainly.com/question/20730322

#SPJ1

5 0
2 years ago
A forest habitat contains a great deal of plant and animal life. Using the forest habitat as a model, explain the difference bet
Vanyuwa [196]
OK, richness you do have to depend on any one

4 0
3 years ago
Some scientists claim that humans are responsible for the increase of CO2 in the atmosphere. Evaluate which system the increased
forsale [732]

Yes, human activities are a significant cause of the increase in the amount of Carbon dioxide in the atmosphere.

<h3><u>Explanation:</u></h3>

The increasing amount of CO_2 is a big problem in today's world for the atmosphere. Human activities are playing a vital role in the rise in CO_2. Carbon emission is majorly happening because of pollution. The pollution by vehicle, wax factories, chemical factories, etc. also, some other kinds of Carbon emission activities are there like burning coal and plastic produces Carbon in very high amount and this Carbon directly mix into the atmosphere.

Due to the increase in CO_2, both natural and agricultural ecosystems are suffering. CO_2 causes air pollution, and because of that, the quality of crops is declining day by day. Also, the natural vegetation is struggling as the rainwater is also not pure; the amount of acidic content in natural rain is increasing per year. All these activities are leading towards global warming, which one day will bring our earth to an end. So it is imperative to take some severe legal measures to save the environment and decline the amount of CO_2 producing.

3 0
3 years ago
What is the mechanism that determines which color of corn is most prevalent
Marat540 [252]
I think it's the banana.
5 0
3 years ago
Question 3
WARRIOR [948]

He was the first to provide an explanation of evolution supported by evidence.

5 0
3 years ago
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