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ahrayia [7]
3 years ago
6

Photosynthesis occurs in

Biology
1 answer:
Natasha_Volkova [10]3 years ago
7 0

Answer:

B. chloroplasts

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle

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According to the theory of evolution what causes living things on earth to change over time
dangina [55]

Answer:

I believe its D

Explanation:

Darwin said that a lot of evolution had to do with natural selection and that seems to be around the same thing.

6 0
3 years ago
What problems still exist in using natural regeneration?
qwelly [4]
Natural regeneration of forests and woodlands is the process by which new trees grow from seeds that have fallen and germinate where they have fallen.  The biggest problem with natural regeneration is that is unpredictable.  As a result, it cannot be used for commercial farming. For most of the last two or three hundred years, forests and woodlands have restocked by using transplants grown in nurseries. The young trees are planted in equidistant rows. This allows each tree the best possible change of optimal growth. 
4 0
3 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.

3 0
3 years ago
Which items are sources of soil pollution or soil pollutants?
Wewaii [24]
Which items are sources of soil pollution
Answer:plastics
3 0
2 years ago
When you dig a water well for a house, you must pay per meter. Based on this image, how deep would you have to drill to reach an
Lerok [7]

14 is my best guess

6 0
3 years ago
Read 2 more answers
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