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zimovet [89]
2 years ago
5

Which best explains why water boils in a pot sitting over fire?

Biology
1 answer:
natima [27]2 years ago
8 0

Answer: Thermal energy from the fire moves to the water in the form of heat.

Because according to second law of thermodynamic, heat flows from higher to lower temperature region. Heat is the transfer of energy from an object at higher temperature to an object at a lower temperature. so energy flows from warmer to colder objects

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In a certain plant, tall stems (t) are dominant to short stems (t). a farmer crosses a short-stemmed plant with a heterozygous l
melisa1 [442]

The answers would be:

Genotype                Phenotype

     Tt                      Tall stemmed

     tt                       Short stemmed

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

<u />

<u>You can read on to see how this was done:</u>

Tall stems (T) are dominant to short stems (t).

First figure out the genotypes of the parents. We have a short-stemmed plant and a heterozygous long-stemmed plant cross.

For short stem to occur, you need 2 pairs of short alleles. So the first parent would have a genotype of tt.

Heterozygous long-stemmed means that the parent has one of each allele. So the genotype of the second parent would be, Tt.

Now we can make our Punnett Square.

tt x Tt

<u>       t        t  </u>

<u>T |  Tt  |   Tt</u>

<u>t  |   tt  |   tt</u>

Let's list down the genotypes and phenotypic results.

Genotype        no.         Phenotype

     Tt                 2           Tall stemmed

     tt                  2           Short stemmed

So from that we can answer the other questions:

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

8 0
3 years ago
Emily wanted to see what battery lasted the longest. She put each battery into a clock and recorded the time that the clock stop
ryzh [129]

<u>Answer:</u>

<em>A constant is something whose value cannot be changed and is used for comparison purpose. </em>

<u>Explanation:</u>

The controlled variable is a type of variable whose value is kept constant during the experiment to get the desired or expected result. The difference between constant and a control variable is that the constant can never be changed.

However, the value of control variable can be changed but is kept constant with a purpose in an experiment to get the data. The controlled variable in a battery can be the multi meter that should be used for all the batteries.

7 0
3 years ago
The solution inside a plant cell is approximately a 1% saline solution. In a 25% NaCl solution the cytoplasm of a plant cell wil
Ber [7]

a 25% of sodium chloride will cause the cell to burst from c.membrane. answer is b.

6 0
2 years ago
Which property of sodium<br>is not typical metal<br>,​
kykrilka [37]

Explanation:

It's a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF).

7 0
3 years ago
What occurs during metaphase 1 of meiosis?​
alisha [4.7K]

Answer:

The pairs of chromosomes become arranged on the metaphase plate.

Explanation:

Please mark brainliest and have a great day!

3 0
3 years ago
Read 2 more answers
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