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Yuliya22 [10]
3 years ago
7

A change in ________ can often cause mass extinctions of animals that are adapted to warm, tropical waters.

Biology
1 answer:
gavmur [86]3 years ago
8 0
The climate of the habitat
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PLEASE HELP ME !! I NEED ANSWERS ASPA!!
Lina20 [59]

Answer:

New Orleans and New York City, United States

Explanation:

6 0
4 years ago
Read 2 more answers
Can a hypothesis be proven true? Why or why not?
VladimirAG [237]

Answer: Hello! xoxo

Upon analysis of the results, a hypothesis can be rejected or modified, but it can never be proven to be correct 100 percent of the time. For example, relativity has been tested many times, so it is generally accepted as true, but there could be an instance, which has not been encountered, where it is not true.

5 0
3 years ago
Which of the following statements regarding restriction enzymes is NOT true?
Anni [7]

Answer:

The correct option is option A

Explanation:

Restriction enzymes are endocleases that cleave DNA fragment (<u>of usually four, five or six nucleotide long</u>) at <u>specific sites to produce blunt or sticky ends</u>. They <u>recognize palindromic sequences of host DNA when cleaving the specific sites</u>. The sequences below (on complementary strands) give an example of a palindromic sequences.

5'-CCC║GGG-3'

3'-GGG║CCC-5'

As can be seen above, when read from 5' to 3', the two sequences are the same despite being on opposing strands. And when cut between the guanine (G) and cytosine (C) (as shown above), it produces a blunt end. But when cut as shown below produces a sticky end.

5'- G║AATTC -3'

3'- CTTAA║G -5'

The explanation above shows options C and D are right while option A is wrong (hence the correct option).

Also, bacteria prevent their own DNA from been digested by restriction enzymes by adding methyl group to their restriction sites <u>which prevents restriction enzymes from recognizing restriction sites of their DNA;</u> this generally makes bacterial DNA to be highly methylated. This explanation makes option B right also.

6 0
3 years ago
The image size of a cell is 2mm. the real size of the cell is 0.01mm. Calculate the magnification​
Ksivusya [100]

Answer:0.03mm.

Explanation: Add the 3+1 to the and you get 0.03mm.

7 0
3 years ago
Read 2 more answers
In two or more complete sentences explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps.
Basile [38]
First of all you have to make both sides of the equation equal

KClO3 -------- KCL + O2

this is the way i would do it first

K - 1                K - 1
Cl - 1               Cl - 1
O - 3                O-2   From this we can see that the oxygen of both don't equal

So than from this we would need to find the common factor of the oxygen which is 6. So we would multiply 3 by 2 to get 6 as well as 2 by 3 to get 6.
The equation will now look like
K - 1                         K - 1
Cl - 1                        Cl - 1
O - 3 (2) = 6             O - 2 (3) = 6

so the final answere:

KCl2O3 --------- KCl + 3O2
5 0
4 years ago
Read 2 more answers
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