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ale4655 [162]
3 years ago
10

What can plant reproduction tell us about the evolution of plants?

Biology
1 answer:
Elenna [48]3 years ago
3 0

Answer:

Reproduction is important in plants to produce their progeny and to maintain its population. Plant reproduction helps to maintain its birth rate and sustain the ecosystem. Reproduction helps to acquire new variations and adapt to the environment with the most desirable characters.

Explanation:

sorry if im wrong

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Name the trophic levels in an ecosystem and explain how energy moves through the trophic levels. Use the food chain and food web
ella [17]

Answer:

there are four trophic levels first are producers then primary  consumers then secondary consumers then teritary consumers

Explanation:

grass - grasshopper - frog - snake - eagle is a simple food chain

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During the S phase in the cell cycle, the chromosomes are replicated so that there are two copies. These copies are necessary so that each daughter cell created during the M phase will have an identical copy of the DNA.

Therefore, the answer is A: The DNA must be replicated. 


The chromosomes joining, cell membrane expanding, and cytoplasm separating all happen during the M phase (mitosis).
4 0
3 years ago
The enzyme that catalyzes the fixation of carbon dioxide in photosynthesis is _____. See Section 10.4 (Page 224) . View Availabl
olasank [31]
<h2>Answer is "RuBisco"</h2>

Explanation:

  • It contains high measures of fundamental amino acids, which makes it somewhat interesting among vegetable proteins. Because of its properties, RuBisCo is a generally excellent possibility for food applications. It can not exclusively be utilized as a protein source yet in addition as an emulsifier, frothing and gelling operator
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4 0
3 years ago
If the sympathetic nervous system prepares your body for ____________, the parasympathetic nervous system prepares your body for
lesantik [10]
The closest answer is C

The sympathetic nervous system is the part of the autonomic nervous system that prepares the body to react to stresses such as threat or injury.

The parasympathetic nervous system is the part of the autonomic nervous system that controls functions of the body at rest.
5 0
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Phytoplankton form the base of food webs, but are only present in the upper few hundred meters of the ocean. A number of factors
Ksenya-84 [330]

Answer:

The correct answer is d. Oxygen

Explanation:

Phytoplanktons are responsible for the fixation of approximately half of the global carbon therefore seawater has high CO2 concentration which is required by phytoplanktons to make their food.  

They are the primary producers of oceans and they are responsible to support the food chain of oceans. Factors that can limit their growth are mainly sunlight and nutrients like phosphorus, nitrogen, etc.

As phytoplanktons are photosynthetic they release oxygen itself as a byproduct therefore oxygen is not a limiting factor to phytoplanktons. So the right answer is d.

6 0
3 years ago
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