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Morgarella [4.7K]
3 years ago
10

Two students are comparing scientific experiments to investigations. They came up with the following ideas.

Biology
2 answers:
balandron [24]3 years ago
7 0

Answer:

Explanation:

Student A because it requires a hypothesis

Sergeu [11.5K]3 years ago
3 0
The correct answer is, student A because it required experimental and control groups.
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In Drosophila, straight wings are dominant to curved wings (c), smooth eyes are dominant to sparkling eyes (spa), and tan body i
77julia77 [94]

Answer:

\frac{1}{8}

Explanation:

Straight wings are dominant over curved wings

Let Straight wings : H

curved wings : t

smooth eyes are dominant to sparkling eyes

let smooth eyes = H

spark ling eyes = t

tan body is dominant to ebony body color.

Again; Let tan body color be H

Let ebony color be t

If flies that are heterozygous for all three traits are crossed;

we have HtHtHt × HtHtHt

Then the selected trihybrid traits for the cross will be (HHH,HHt, HtH, Htt, tHH, tHt, ttH, ttt)

We will realize that from the punnet square in the diagram below, the proportion of the offspring would you expect to be heterozygous for all three traits (i.e HtHtHt) is asterisk in the punnet square and will be \frac{8}{64}

= \frac{1}{8}

7 0
3 years ago
What are the Seven parts of the water system
koban [17]

1: Evaporation

2: Condensation

3: Sublimation

4: Precipitation

5: Transpiration

6: Runoff

7: Infiltration

4 0
2 years ago
If humans evolved from monkeys, why are<br> there still monkeys?
Alina [70]

Firstly, humans did not evolve from monkeys. Instead, monkeys and humans share a common ancestor from which both evolved around 25 million years ago. This evolutionary relationship is supported both by the fossil record and DNA analysis. A 2007 study showed that humans and rhesus monkeys share about 93% of their DNA.

8 0
2 years ago
Grasslands are _______.
dmitriy555 [2]
<span>The grasslands typically lie in the middle of large lanmasses, or the interior of continents, where rivers are most likely to flow far away from seawater sources. Here the ever present value of water can be seen, as it supplies the source of life to all the plants and animals in the ecosystem in a lush and relatively cushy environment when compared to the biomes like the desert or savannah.</span>
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3 years ago
Which of the following best explains what would happen if there were no decomposers in an ecosystem? (1 point)
Elina [12.6K]
<h3><u>Answer;</u></h3>

A). Organic compounds would not be available for use by autotrophs.

<h3><u>Explanation;</u></h3>
  • The stability of an ecosystem depends on the actions of the decomposers.
  • Therefore, if there were no decomposers in an ecosystem then, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
  • The carbon and nitrogen necessary to build organic compounds, and then cells, allowing an organism to grow, would be insufficient. Other nutrients necessary for an organism to function properly would also not be sufficient.
6 0
3 years ago
Read 2 more answers
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