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Anika [276]
2 years ago
8

Which is the most comprehensive ecological unit of the biosphere?

Biology
1 answer:
maw [93]2 years ago
8 0

Answer:

D. Biome

Explanation:

The most comprehensive ecological unit of the biosphere is the biomes. Biomes are the largest ecological unit of life.

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EQ: What is the scientific Method and<br> how do we use it in our everyday lives?
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Answer:

The scientific method :

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or prediction

Explanation

that's the scientific method but there are many example to how you use it in everyday life i.e the lights went out and you want to find out why, perhaps you didn't pay your bill or maybe the power went out.  then you would go through the steps to find out what happened

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In cattle, RR = red, Rr = roan, and rr = white. What are the predicted color phenotypes for the offspring from crosses between:
timofeeve [1]

Answer:

a) 100% roan

b) 50% red, 50% roan

c) 50% roan, 25% red, 25% white

Explanation:

a) A red bull has the phenotype RR, a white cow has the phenotype rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow only has r alleles to pass on:

                               Bull

                        R               R

                r      <em>Rr             Rr</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

The offspring can only be Rr, so all of them will be roan. (100% roan).

b) A red bull has the phenotype RR, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow has an R allele and an r allele to pass on:

                               Bull

                        R               R

               R      <em>RR            RR</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

<em />

50% of the offspring will be RR, and 50% will be Rr. So half of the offspring will be red, and half will be roan.

c) A roan bull has the phenotype Rr, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull has an R allele and an r allele to pass on, and the cow also has an R allele and an r allele to pass on:

                               Bull

                        R               r

               R      <em>RR            Rr</em>

Cow    

               r      <em> </em><em>Rr             rr</em>

<em />

25% of the offspring will be RR, 50% will be Rr, and 25% will be rr. So half of the offspring will be roan, a quarter will be red, (RR), and a quarter will be white (rr)

6 0
3 years ago
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