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Arturiano [62]
3 years ago
13

Consider this ecological pyramid found in Great Lakes ecosystem. Ecological pyramids are diagrams that are used to show how much

energy the number of organism or how much biomass may be found at each tropic level of all the food webs of a community. Why are the autotrophs, in the case the algae, always placed at the base of the pyramid ?
A) autotrophs are always the most numerous in any ecosystem

B) autotrophs are the starting point of the carbon cycle in any ecosystem

C) autotrophs are responsible for converting solar energy into usable chemical energy

D) autotrophs work with saprophytes and detritivores to recycle energy into the food web
Biology
1 answer:
sergeinik [125]3 years ago
4 0
The answer is C, i just did it and got it right so you can trust this answer, i wrote so much because of the 20 character thing
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In the F2 generation of a dihybrid cross two phenotypes appear in the ratio 1:1. two phenotypes appear in the ratio 3:1. four ph
Bezzdna [24]

Answer:

four phenotypes appear in the ratio 9:3:3:1

Explanation:

<em>For a dihybrid cross in which the two genes concerned obey simple dominant/recessive law and are independently assorting, </em><em>four phenotypes are produced in the ratio 9:3:3:1. </em>

The dominant gene takes up the largest ratio (9/16) while the recessive gene takes up the smallest (1/16). Any deviation from 9:3:3:1 and the number of phenotypes produced from a dihybrid cross is an indication that the genes involved do not obey Mendelian laws.

8 0
2 years ago
What type of cell organelle is only found in animal cells? (1 point)
Talja [164]

Answer:

lysosomes

Explanation:

Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.

5 0
3 years ago
Which of these is a biotic component of an environment?
maksim [4K]

<span>       Biotic components or biotic factors are  any living organisms that affect another organism. These components shape an ecosystem which includes animals that consume organisms in question and its living food that the said organisms consume. Biotic components include human influence. Producers, consumers and decomposers usually comprise biotic components.</span>

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3 0
2 years ago
What is digestion and how does it work
slamgirl [31]

Answer:

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

Explanation:

Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body. Waste products of digestion pass through the large intestine and out of the body as a solid matter called stool.

3 0
2 years ago
Which data help hydrologists predict floods? Select the two correct answers
Alika [10]

Answer:

Which data help hydrologists predict floods?

Impermeable land area

Snowpack

Explanation:

Impermeable land area , Snowpack

The above factors are very essential to an hydrologist to predict floods though other factors such as topography, drainage among others are also inclusive to make the prediction rightly.

3 0
2 years ago
Read 2 more answers
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