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quester [9]
3 years ago
5

What trait most likely evolved in ferns that was not

Biology
1 answer:
nata0808 [166]3 years ago
5 0

HI Mate! The right answer is vascular tissue!

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In cells, __________ are proteins that are needed to lower the amount of energy required to start chemical reactions.
asambeis [7]
<span>In cells, enzymes are proteins that are needed to lower the amount of energy required to start chemical.</span>  

 Enzymes are biological catalysts which accelerate chemical reactions (reactions are millions of times faster than without them). Every enzyme has an active site which binds substrates and converts them into products. 
6 0
3 years ago
1. Suppose the country is going through a period of economic contraction. What kinds of
Mademuasel [1]

Answer:

Increase in prices of commodity

Scarcity of petroleum

Economic recession

Lack of social amenities e. G water and light

Explanation:

Am not so sure tho but I think I've helped a bit with this

4 0
3 years ago
Define the following term: <br> First order consumer:
sergey [27]

Answer:

First order consumer: the first step in the food chain; they eat the producers

Explanation:

These organisms are usually herbivores. They eat the producers (plants).

8 0
3 years ago
The medium of a wave is________.
fenix001 [56]
I might be wrong but I think C ( what the wave it traveling through). I think C because a wave medium is the substance that carries a wave (or disturbance) from one location to another. The wave medium is not the wave itself and it doesn’t make the wave. It just Carries or transports the wave from its source to other locations.
8 0
2 years ago
Read 2 more answers
What are the 3 different shapes, or structures, or carbon base molecules?
ddd [48]

Answer:

Carbon based molecules have 3 main structures which are

straight chain

branched chains

rings

Explanation:

The structure or shape of carbon can be a straight chain, branched chained or in the form of rings. Examples of straight chain carbon includes propane, butane and pentane. Examples of branched chain carbons include members of the alkyl group like methyl and ethyl. Ring shaped carbons form structures in the form of rings like benzene which forms a six carbon ring. All these structures are made and dependent on the ability of carbon molecules to form four covalent bonds. Enormous, complex molecules can be formed by the binding of carbon chains to carbon rings. The carbon based molecules are very important as they are the basic buiilding blocks of life. Many important molecule like the DNA, RNA, lipids are made up of carbon atoms.

3 0
3 years ago
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