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Natasha_Volkova [10]
2 years ago
7

What needed to happen before life could exist on Earth?

Biology
1 answer:
Dmitrij [34]2 years ago
3 0

Answer:

The condition of the Earth had to become favourable before it could support any form of life.

The formation of the different layers around the earth like the ozone layer was necessary before life could originate. Primitive species such as some prokaryotes were able to live in hydrothermal conditions during the initial times. With the passage of time, as the concentration of oxygen increased due to photosynthetic prokaryotes, situations became favourable for eukaryotic organisms to arise.

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Charles Darwin took a five-year voyage around the world observing different
Juli2301 [7.4K]

Answer:

Natural selection.

Explanation:

Natural selection is when organisms who are most adapted to their environment survive and pass on their genes while those with "unfit" genes die and don't get the chance to reproduce! This slowly creates a population that is most well suited to their habitat. Hope this helps again LOL! :)

7 0
2 years ago
Enzymes function most efficiently at the temperature of a typical cell, which is 37
Dvinal [7]

Answer:

I believe the warmer the heat is the molecules will speed up and the cooler the molecules are the slower it'll be

8 0
3 years ago
In a flowering plant, blue flower (B) trait is dominant to white flower (b) trait. A true-breeding blue flower plant (BB) is cro
scoundrel [369]

Answer: D. 100%

Explanation:

One parent is with is a true breeding blue flowering plants this means the two alleles of the genotype are homozygous dominant alleles (BB).

The other parent is a true breeding with flowering plant, this means the two alleles of the genotype are homozygous recessive alleles (BB).

When both parents are crossed, the possible genotype outcome is

B B  *  b b

Bb Bb Bb Bb

Therefore since the blue flowering plant allele (B) is dominant to the white flowering plant allele (b) the probability of an offspring outcome to be a blue flowering plant is 4/4 which is 100%.44

Answer is 100%

3 0
3 years ago
Read 2 more answers
How many of the offspring will exhibit tortoiseshell coloring?
Jet001 [13]
The answer is two and four hope this helps
8 0
3 years ago
In dna replication, each individual parent strand acts as a _____ strand for the synthesis of a _____ strand.
irina [24]
The answer is template strand; daughter strand.

<span>In DNA replication, each individual parent strand acts as a <u>template</u> strand for the synthesis of a <u>daughter</u> strand. DNA replication is a process of producing of two identical copies of DNA from the original DNA. DNA molecule consists of two strands and each strand serves as a template strand for the synthesis of a daughter cell. DNA polymerase binds to the origins of replication and synthesises daughter strands by adding complementary nucleotides.</span>
5 0
2 years ago
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