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Ksju [112]
3 years ago
5

What are traces or remains of organisms that lived in the past

Biology
1 answer:
liq [111]3 years ago
6 0
D.) Fossils.      Fossils are skeletons of creatures that lived in the past. 
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3 years ago
Explain the RNA hypothesis?
Sonbull [250]
Here is the answer to this question:
<span>
According to the </span>RNA<span> World </span>Hypothesis<span>, life later evolved to use DNA and proteins due to </span>RNA's<span> relative instability and poorer catalytic properties, and gradually, ribozymes became increasingly phased out. The ribosome, a large molecular machine that drives protein synthesis, is a ribozyme.
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I hope this helps you

4 0
3 years ago
Read 2 more answers
50 points + brainliest <br> WRONG ANSWERS WILL BE REPORTED
Vsevolod [243]

Answer:

i.  (answer is in the file I attached)  

ii. underground parts of the plants are thick , fleshy and swollen because they store food in the form of starch.

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iv. this plant is called a water lettuce it's leaves are modified to form modified to form hydrophyte They are aquatic plants that have evolved to thrive in water. This is capable of comprehending with aquatic macrophyte, which will be entirely submerged in water and in some circumstances allowed to float on the water's surface.  

hope this helps :)

7 0
3 years ago
How does the digestive work
mamaluj [8]
Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. ...Digestive juices contain enzymes that break food down into different nutrients.
3 0
3 years ago
___ is a type of weathering caused by a chemical reaction which water
Gala2k [10]

Answer:

Chemical weathring

Explanation:

Oxidarse the rock

6 0
2 years ago
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