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kotykmax [81]
2 years ago
14

How is modern Earth different from Earth over four billion years ago?

Biology
2 answers:
Alex_Xolod [135]2 years ago
5 0

Answer:

c and b

Explanation:

cause I believe that because of the populations and polutions that is cause of humans we are now lack of protective shield and green gases within our atmosphere

ki77a [65]2 years ago
4 0
I believe it’s B. Oxygen depleted from the earth making many animals smaller and not as mutated.
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Somebody help me so I can give y’all some points
Fynjy0 [20]

Answer:

d is the correct answer

Explanation:

an ionic bond forms when positively charged metal ion attract to negatively charged ones

hope this helps !

5 0
2 years ago
Read 2 more answers
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DiKsa [7]

Answer: Dominant

Explanation: If the trait is dominant, one of the parents must have the trait. Dominant traits will not skip a generation. If the trait is recessive, neither parent is required to have the trait since they can be heterozygous. Determine if the chart shows an autosomal or sex-linked (usually X-linked) trait.

5 0
3 years ago
How are the results of genetic drift similar to the results of gene flow?
Fynjy0 [20]
The answer is Both result in a change in allele frequencies in the affected population

Genetic drift is a change in the frequency of alleles in a population as a result of random sampling of organisms. I<span>magine you have two different alleles in the population responsible for red and white color of a flower. Their allele frequencies are 0.2 for white flowers and 0.8 for red flowers. After some change in the environment, only white flowers survive. They will reproduce, and in the population, there will be only white flowers. The population for these flowers will increase from 0.2 to 1.
Speaking of gene flow, it is not as dramatic and drastic as genetic drift, but still, it includes a transfer of alleles from one population to another, so there is expected a change in allele frequency.</span>

5 0
3 years ago
Which process is responsible for causing menstruation
Setler [38]

Explanation:

the process in a woman of discharging (through the vagina) blood and other materials from the lining of the uterus at about one monthly interval from puberty until menopause (ceasing of regular menstrual cycles).

4 0
3 years ago
Once amylase has broken down starch, can it break down another starch molecule?
Juliette [100K]

Answer:

Yes, amylase can be reused, and when fulfills its catalytic function, it is free to catalyze the breakdown of another starch molecule.

Explanation:

Amylase is an enzyme capable of catalyzing the breakdown of starch bonds, separating it into glucose molecules.

The enzymes, including amylase, have the property of being free and without structural alteration when catalyzing a reaction, to bind to the specific substrate and catalyze a new reaction.

Amylase is not consumed, unlike a reagent, so it can be reused in new reactions.

4 0
2 years ago
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