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Lemur [1.5K]
3 years ago
7

if an average of 5000 asteroids bombarded earth every million years during the hadean, calculate the total number of asteroid im

pacts that occurred during this eon.
Biology
1 answer:
attashe74 [19]3 years ago
5 0

Answer:

3.5 x 10⁶ asteroid impacts

Explanation:

The Hadean Era was about 700 million years long, so 5000 x 700 = 3500000 or 3.5 x 10⁶ asteroid impacts.

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Snakes don't have hands and legs​
IgorLugansk [536]

Explanation:

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7 0
3 years ago
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If two species are branching off of the same node in a phylogeny, is it possible to tell which species evolved first?
Alekssandra [29.7K]
I don't think so, becuase they both branch off and they have a common ancester.
6 0
3 years ago
Define Tidal Voulume and give its amount in ml:
Art [367]

Answer:

Amount of air inhaled or exhaled per breathing stroke is called as tidal volume. Tidal volume is 400 ml for women while for men it is 500 ml.

Explanation:

In respiration, tidal volume is defined as the volume of air that a person inhales or exhales  in one stroke of normal breathing.  

The tidal volume varies in adult men and women.  In resting condition,  tidal volume is 400 ml for women while for men it is 500 ml.

This tidal volume varies with the requirement of the body. During intense physical exercise the amount of gas intake increases in order to full fill the requirement of body and hence the tidal volume increases.  

7 0
3 years ago
Which of the following is a true statement about constellations and galaxies?
pishuonlain [190]
I would say the answer is C

Galaxy

- It is a collection of billions of stars.
- Resembling human beings or animals.
- There are billions of galaxies in the Universe.
- There are not many galaxies, which are visible to the naked eyes.


Constellation

- It is a collection of only a few stars.
- Stars in the constellation are arranged in patterns resembling human beings or some animals.
- There are only about 88 constellations.
- There are many constellations, which can be observed with the help of naked eyes.
6 0
3 years ago
PLEASE WRITE IN OWN WORDS, HELP!
Lelechka [254]

Answer:

Evolution means change in the physical features of an organism.

Explanation:

Evolution means change in the physical features of an organism. Evolution occurs in the population of an organisms due to various factors such as mutation, non-random mating and natural selection. Nonrandom mating occurs when an organism prefer mating with particular superior organisms or with the similar organism. Mutation in the genetic makeup of an organism is also responsible evolution. this mutation occurs when an organism experience ultraviolet radiation from the sun, or also occur if an error in DNA during cell division. Gene flow is also known as gene migration is the transfer of genetic material or traits from one population to another when the organism is migrated to another environment. Some organisms are selected naturally because they have the potential to survive in that environment so they survive and that doesn't adopt itself to the environment, it will extinct from the environment.

8 0
3 years ago
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