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fiasKO [112]
3 years ago
10

Pea plant cross: PpYy x PpYy

Biology
1 answer:
tatyana61 [14]3 years ago
6 0
(Pp)(Yy) —> PY, Py, pY, py
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Between water, plant, air,sun which is the most important and without which one can die​
Diano4ka-milaya [45]

Answer:

I think the answer is air

I don’t think you can last 2 minutes without air

Explanation:

If it helped please give me brainliest

5 0
3 years ago
I don't what it wants me to answer, if you understand it please help​
Over [174]

Hello!

An initial observation is the first thing a scientist notices about a topic before conducting the experiment. We can see that it is the first thing in the paragraph in this case, that dandelions grow as unwanted weeds in many lawns.

The hypothesis is the guess about the result of an experiment made before the experiment is conducted. In this case, it is that a weed killer (Killimal) would kill all the dandelions while leaving the grass healthy. This is not specifically a guess made by the scientist, but more like a prediction he wanted to verify.

An independent variable is the variable being changed in the experiment by the scientist. Here, it is whether Killimal was sprayed or not.

The dependent variable is the variable being measured, and the one being affected by the independent variable. His observation would be whether the grass and dandelions would be killed. This is because the weed killer would be directly affecting whether or not these would be killed.

The control variables are ones which are kept the same in the experiment as to not interfere with the final results. In this case, it would be the density of dandelions, the amount of sunlight, and the amount the plants were watered. These were kept exactly the same, as they could've affected the dependent variable if changed.

The control group was the one that is not impacted by the independent variable. The control group makes sure that it actually is the independent variable affecting the dependent, and it isn't some outside unknown variable. This would be the plot without the Killimal.

The experimental group is the one being experimented on from the independent variable. This would be the plot with the Killimal.

Hope this helps!

8 0
3 years ago
explain why biologists say that a cell is alive, but none of the individual molecules inside the cell are alive.
Alborosie
Because the cell is considered an organelle which is a biological mechanism which consists of different parts, whereas a molecules is a single part and not a mechanism.
5 0
3 years ago
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Why is East Ferris running out of water
Lana71 [14]

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East Ferris running out of water because the amount of available freshwater decreases when people use more than the amount that flows into their area.

5 0
3 years ago
Which of the following is true of Mendelian inheritance
Ksivusya [100]
<h2><u>Answer</u> :</h2>

The correct option is A. If a dominant allele is present, the recessive allele won’t be seen.

The dominant allele is the one which appear, and the recessive one isn't shown.

For example - If a person has 2 alleles of eye colour as B ( black ) and b ( brown ), in which black is dominant and the brown one is recessive, then the person will have black eye colour because only dominant allele shows its characteristics.

_____________________________

\mathrm{ \#TeeNForeveR}

8 0
3 years ago
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