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Phoenix [80]
3 years ago
7

The biosphere (life) is composed primarily of water and ____.

Biology
1 answer:
ra1l [238]3 years ago
5 0
That would be living things.
Because...
Biosphere= living things
Lithosphere= land
Hydrosphere= water
Atmosphere= air
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Question 10 of 10
sasho [114]

Option D

polymerase chain reaction (PCR) do Makes more copies of a sample of DNA

<u>Explanation:</u>

A procedure to create several portraits of a distinct DNA section is termed as Polymerase chain reaction. In other words, it is a lab routine handled to compose various representations of a portion of DNA. PCR is extremely explicit and can be utilized to increase, or model, a particular DNA destination from a hybrid of DNA particles.  

In PCR, the effect is regularly cycled within a range of temperature variations, which deduct countless models of the destination range to be exhibited. PCR intends to obtain sufficient of the objective DNA region that it can be examined or applied in some other way.

5 0
3 years ago
Which component CANNOT be part of this strand?
baherus [9]

uracil

Explanation:

because the rest are part of the DNA strand

7 0
3 years ago
What is the type of allele that only affects the phenotype in the homozygous condition?
sergeinik [125]
I thinking the answer was for some genes, both alleles express together. Others combine to give an average phenotype....
3 0
3 years ago
Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Mrrafil [7]

Answer:

number 1 answer is 3.

number 2 energy is flowing upwards. ex grasshopper eats the grass, rat or whatever that is eats the grasshopper, and the hawk eats the rat. energy is going up each trophic level.

number 3. if the grass became polluted, then animals would get pollution in their bodies and at some point would die. eventually the grass would die too. primary consumers such as mouse, rabbit, grasshopper/snails would accumulate the most pollution because they directly eat the grass. whatever that is in the grass goes straight into their bodies.

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3 years ago
Before scientists learned how to make artificial fertilizers, what key process limited the amount of nitrates available to plant
zavuch27 [327]
I believe rottening would be the answer. Rotting, dead plants and animal feaces make great fertilizers. 
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