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Mandarinka [93]
3 years ago
11

As much as 90 percent of the oxygen in our atmosphere is the result of what?

Biology
1 answer:
pychu [463]3 years ago
7 0
90% of the atmosphere is the result of photosynthesis.
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What makes up 21 percent of the earths atmosphere
never [62]
  the answer is 21<span>% oxygen, </span>
6 0
3 years ago
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Ben Affleck has a cleft chin, but his ex-wife Jennifer Garner does not. Neither one of their two daughters (Violet and Seraphina
kherson [118]

Answer:

Ben - Y Xc

Jen - XCXC

Violet - XCXc

Seraphina - XCXc

Samuel- Y Xc

Explanation:

Given -

Ben has a cleft chin

Let the allele for cleft chin be "c"

and the allele for normal chin be "C"

When Ben with cleft chin mates with wife Jennifer Garner having normal chin, then the two girl child do not have cleft chin but the boy has cleft chin.

This means that the allele C could be X -linked and the mother is not the carrier but the father is

The genotype of father Ben would be Y Xc

Genotype of mother would be XCXC

Genotype of two daughters XCXc  , XCXc which means they are carrier for the next generation

Genotype of Boy - Y Xc

3 0
4 years ago
[Please help me with this question and please explain WHY you chose what you chose] The diagram shows a plant and an animal cell
Free_Kalibri [48]

Answer:

B. Both cells use the same molecules for energy

Explanation:

The mitochondrion is considered the powerhouse of the cell and it is the only place that makes energy in the cell

7 0
3 years ago
Glucose produced by autotrophs
Rudik [331]
Process of photosynthesis makes glucose. Excess glucose is stored as starch, or made into cellulose in cell walls.
6 0
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Mammalian evolution began with the evolution of the first synapsids. What is the defining synapomorphy of synapsis?
Feliz [49]

Answer:

b. a single temporal fenestra

Explanation:

Synapsids have a temporary fossa in the lower part of the temporal bone. These reptiles mamiferoides only have a single inferior temporal fenestra.

The synapsids were the first amniots to diversify and appeared  in the middle of the Carboniferous. These first synapses were characterized by the presence of a single temporary fenestra behind each orbit, through which the mandibular muscles pass.

4 0
3 years ago
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