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hammer [34]
3 years ago
11

The condition on Earth billions of years ago.

Biology
1 answer:
expeople1 [14]3 years ago
6 0
Billions of years ago Earth was just a planet made out of rocks. After the Big Bang Theory, Earth was being formed. After it was formed it took years and years for life to even start on earth. What started life was when Earth started to produce it's own water then soon it made volcanoes which made islands which formed into gigantic places that we call home. Later on Earth started to produce it's own weather and atmosphere. As earth had it's first rainfall, the ground started to grow green leaves that we call grass and trees. With those changes, life was starting to be born. The first living things on Earth, singled-celled micro-organisms  or microbes lacking a cell nucleus or cell membrane known as prokarotes. Later on the the organisms starting producing more organism which evolved later into human and animal life.

Hope this helped <span />
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The crystal of a mineral are always the same size. True or false
Lelechka [254]
Hello!

False! They vary from crystal to crystal. Nothing is ever honestly the same size of one another, especially not crystals. They're all different, like snowflakes.

Hope this Helps! Have A WONDERFUL Day! :)
7 0
3 years ago
Read 2 more answers
Bruce Wallace (1963) established a laboratory population in which the recessive allele lt was at a frequency of 0.5. He propagat
Alenkinab [10]

Answer:

a. True

Explanation:

Bruce Wallace was a professor emeritus of genetics who performed many population studies. He worked in 1958 at the University of Cornell as a professor of genetics. In 1963, he performed a population study wherein the recessive allele <em>It </em>was at a frequency of 0.5. The population was propagated for 10 generations and the frequency of <em>It</em> for each generation was determined.

The result of this study showed that<em> lt/lt </em>died without reproducing, whereas, individuals with genotype <em>+/+ </em>were normal.

8 0
3 years ago
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ValentinkaMS [17]

Answer:

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Explanation:

3 0
3 years ago
The occurrence of discarded fishing gear still catching or entangling fish is known as
MariettaO [177]

Answer:

D. ghost fishing

Explanation:

The nets are also called "ghost nets" being left behind or lost in the ocean by fishermen.

Also, never leave nets in the water. Our Earth needs healing.

6 0
3 years ago
To find the graphical solution when adding vectors, you can draw a(n) ____ from the starting point to the ending point.
ehidna [41]

Answer:

arrow (which creates the resultant vector)

Explanation:

When you use the graphing technique when adding vectors, you can use the head to tail method to draw the vectors. And from the starting point or the tail of the first vector you drew, you will draw an arrow touching heads with the head of the last vector drawn.

With that, you can use a ruler to measure the resultant vector's magnitude, and use a protractor to measure it's direction.

Below is an example:

Let:

V1 = Vector 1

V2 = Vector 2

R - resultant vector.

4 0
3 years ago
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