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Lelechka [254]
3 years ago
13

Which best describes a scientific theory?

Biology
1 answer:
Alex777 [14]3 years ago
8 0

Answer:

C.

Explanation:

A theory is not a guess but an explanation of <u><em>why</em></u> things happen.

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Which of the following would differ if you compared the same reaction taking place with and without an enzyme
SIZIF [17.4K]

Answer:

The correct answer is - option C.

Explanation:

Chemical energy is the energy that every substance or chemical have and its not affected by the presence or absence of the enzyme, while the activation energy is the required energy to initiate for a chemical reaction. If the energy of the chemical reaction is less than the activation energy reaction will not take place.

Presence of a enzyme lowers the amount of the energy for the initiating the reaction which is activation energy and the chemical reaction takes place.

Thus, the correct answer is - option C.

3 0
3 years ago
In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes orange color. The heterozygote i
allochka39001 [22]

Answer:

A) tortoiseshell female; black male

Explanation:

Females have two X chromosomes and males have an X and a Y chromosome.

<u>The possible genotypes and phenotypes are</u>:

  • XᵒXᵒ: black female
  • XᵒY: black male
  • XᴼXᴼ: orange female
  • XᴼY: orange male
  • XᵒXᴼ: tortoiseshell female

<u>Cross of a black female and an orange male</u>

<h3>XᵒXᵒ  x  XᴼY</h3>

The female only produces Xᵒ gametes. The male produces Xᴼ and Y.

The possible offspring therefore is:  XᵒXᴼ (tortoiseshell females) and XᵒY (black males). The answer is A.

5 0
3 years ago
Hellllllllllppppp pleasse!!!!!!!
LekaFEV [45]

Answer:

Im not sure but I think its a

Explanation:

I learned it in class

4 0
3 years ago
Read 2 more answers
Which factors should scientists measure to learn how each<br> population changed over time?
Art [367]

Explanation:

The statistical study of populations and how they change over time is called demography. Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume.

4 0
2 years ago
What feature of bacteria makes them more capable of causing disease?​
zzz [600]

Answer:

They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick.

Hope this helps!

5 0
3 years ago
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