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vlada-n [284]
3 years ago
9

Which of the following accurately reflects the beliefs on Earth's early history?

Biology
1 answer:
harina [27]3 years ago
3 0
The following statements accurately reflect the beliefs on Earth's early history:
B. Scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.

The following statements are incorrect:
A. Scientists believe that DNA may have existed before RNA - Scientists actually believe the opposite - RNA may have existed before DNA.
C. Scientists believe that microspheres nearly prevented the development of early life.
D. Scientists believe that oxygen was plentiful in the early atmosphere - again, scientists believed the opposite

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Pros and cons of canopy fogging
pishuonlain [190]

Pros:

It is (mostly) based on pyrethrine spray which kills the insects rapidly.

It not poisonous to other animals.

It uses synthetic, natural spray which is safe to use because it breaks down within 10 minutes.

Te technique can reach tall forests.

It can be used in closed spaces ( greenhouses, basements etc).

 

Cons:

It requires windless circumstances ( which is mostly at nights).

Breathing fog may cause respiratory and throat irritation to some.

 

5 0
3 years ago
An imaginary species of bears, fur color can be purple or gold. Gold is the dominant trait. How would the bear look if the gene
BARSIC [14]

Answer:

<h2>Gold</h2>

Explanation:

Assume Gold trait =P ,

Purple= p,

Given:

Gold (P) is dominant over purple(p), so P is dominant over p.

If the bear is homozygous pp ( recessive)  then bear will look purple,

If the bear is heterozygous Pp, then bear will look gold,

If the bear is homozygous DD( dominant), then the bear will look GOLD,

6 0
3 years ago
Based on the concept of the global conveyor belt, what happens to ocean water as it moves from Antarctica to the equator?
marta [7]

What happens to the ocean water as it moves from Antarctica to the equator is : ( B ) It becomes less dense and rises to the surface.

<h3>Concept conveyor belt </h3>

The conveyor belt is a system of oceans which transports water and propel deep current of water bodies across the globe based on the differences in water densities.

As the ocean water moves from the Antarctica to the equator the cold ocean water mixes with the warm ocean water at the equator, which makes the water less dense and rises to the surface.

Hence we can conclude that What happens to the ocean water as it moves from Antarctica to the equator is  It becomes less dense and rises to the surface.

Learn more about the conveyor belt : brainly.com/question/14910379

#SPJ1

8 0
2 years ago
How do doctors confirm a disease.<br>please tell fast.​
ra1l [238]

Answer: They usually run tests too see. For example, that's why they made blood tests. They take you blood from you, and run tests to see if you have a disease.

Explanation: Hope it helps!

7 0
2 years ago
Distinguish between the fossils of ice age mammals found in the La Brea Tar Pits and the organisms that make up the
Neko [114]

Answer:

Explanation:

The tar located in the La Brea tar pits is today a fossil fuel that began its formation many hundreds of millions of years ago from the bodies of marine organisms. During the last ice age that ended a few tens of thousands of years ago, some animals got trapped in the tar and left their bones behind. They are not something that created it but only got trapped in preexisting tar.

4 0
3 years ago
Read 2 more answers
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