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2 years ago

PLEASE HELP ME WITH SCIENCE WILL MARK BRAINLIEST!

Biology

2 answers:

MAVERICK [17]2 years ago

8 0

Answer:

1 Photosynthesis uses CO2 and expels O2 and the reverse for respiration

2. stratosphere where ~90% of it is

3. Less infrared radiation is able to escape from the earth into space and that infrared radiation hits the GHG gases and the radiation is turned into kinetic or heat energy trapping which warms up the earth

Explanation:

Gennadij [26K]2 years ago

8 0

Answer:

1. Used by Photosynthesis: CO2 Expelled: O2

Used by Cellular respiration: O2 Expelled CO2

2. Most ozone (about 90%) is found in the stratosphere, which begins about 10–16 kilometers (6–10 miles) above Earth's surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer”

3. The surface of the earth heats up

Explanation:

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Answer:

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2 years ago

A population is made up of individuals where 77 have the A1A1 genotype, 65 have the A1A2 genotype, and 123 have the A2A2 genotyp

lana [24]

Answer:

Frequency of allele A1- 0.41

Explanation:

In Hardy weinberg equilibrium,

P refers to the dominant allele

q refers to the recessive allele

The allele frequency will be p+q=1

The genotypic frequency is- P²+q²+2pq=1

P²= genotype of dominant trait ( A1A1)- 77

2pq= genotype of heterozygotes (2pq)- 65

q²= genotype of recessive trait (A2A2)- 123

Total number of offsprings= 77+ 65+ 123

= 265

Now to calculate allele frequency of A1=

$\dfrac{\text{number of A1A1 offspring}}{ \text{total number of offspring}}+\dfrac{1}{2}(\dfrac{\text{number of A1A2 offspring}}{\text{total number of offspring}})$

= 77/265 + 1/2( 65//265)

= 0.290+ 0.122

= 0.413

Thus, 0.41 is correct.

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