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docker41 [41]
1 year ago
10

Why is ​DDT​ still a controversial issue?

Biology
1 answer:
timama [110]1 year ago
4 0

Answer: DDT still has limited use in disease vector control because of its effectiveness in killing mosquitos and thus reducing malarial infections, but that use is controversial due to environmental and health concerns.

Explanation: Hope this helps :)

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When does DNA polymerase check for mutations?
marta [7]

Answer:

during DNA replication

Explanation:

During DNA synthesis, when an incorrect nucleotide gets inserted in daughter strand of DNA, DNA polymerase goes back by one nucleotide pair, excises the mismatched nucleotide and repairs error. Thus, the DNA polymerase checks for mutations at the time of DNA replication

3 0
3 years ago
Describe how is an organism's food and habitat related
Brums [2.3K]
As we already know, organism mean's something that is living.
Well, at a habitat there is going to be some animal's or insect's because it's that animal's or insect's habitat. ( They live there.) Well <u>most</u> organism's are food.
( NOTICE I bloldfaced "most", this is because not all organism's are food) Okay, let's go over what we just said. Organism's are living thing's and habitat's are places where organism's live. Now we have to think about this, you stated, Describe how is an <u>organism's food</u> and habitat related. The one thing we have not talked about is, <u>organism's food</u>. Okay, Animal's live in habitat's and so do organism's.
 ( Remember, some <u>organism's eat other organism's</u>) This is how organism's food and habitat are related.

<u>Hope this help's!</u>
<u>Good luck on your </u>
<u>home work! (:</u>


5 0
3 years ago
Read 2 more answers
The brilliant research scientist, Professor "Iron-Mike" Scrawll is studying a new pore-forming toxin from the pathogenic bacteri
Dafna11 [192]

Answer:

The correct option is C - Professor Scrawll applied 100 nM BurD to the cells for 24 hours, while Dr. Bogey applied 1 nM BurD to the cells for 12 hours.

Explanation:

The correct option is C - Professor Scrawll applied 100 nM BurD to the cells for 24 hours, while Dr. Bogey applied 1 nM BurD to the cells for 12 hours.

As the exotoxin, BurD is very stable and lyse the ankle cells very quickly, more concentration and more time of action should only lyse the cells. Perhaps Dr.Bogey's ankle cells were not lysed because the concentration she used was only 1nM compared to the 100nM concentration used by Dr. Scrawll, and the time period of incubation was only 12 hours compared to the 24 hours used by Dr. Scrawll.

Considering the other explanations given in the remaining options, the concentration and time of incubation used by Dr. Bogey are more than that used by Dr. Scrawll which should only have possibly lysed the cells. Moreover, contamination with bleach also should have only lysed the cells.

5 0
3 years ago
Which method of finding exoplanets involves directly viewing the planet through various types of telescopes?​
musickatia [10]

Answer:A star with a planet will move in its own small orbit in response to the planet's gravity. This leads to variations in the speed with which the star moves toward or away from Earth, i.e. the variations are in the radial velocity of the star with respect to Earth. The radial velocity can be deduced from the displacement in the parent star's spectral lines due to the Doppler effect

Explanation:

5 0
2 years ago
The molecule that fixes atmospheric CO2 in C4 plant is
Anna11 [10]

Answer:

co2 its the carbon dioxide oxcil

6 0
3 years ago
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