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nikklg [1K]
2 years ago
11

Food webs, food chains, and trophic levels are all tools to help ecologist understand which of the following

Biology
1 answer:
oksian1 [2.3K]2 years ago
6 0

The energy flow within an ecosystem.

Animals can utilize both radiant and fixed energy. The fundamental unit of electromagnetic waves like light is radiant energy. Fixed energy is chemical potential stored in various organic materials that can be damaged to release their energy.

Autotrophs are organisms that can fix radiant energy and can synthesize organic compounds from inorganic materials. Heterotrophs are organisms that cannot receive energy from an abiotic source but rely on organic compounds produced by autotrophs that are rich in energy.

To learn more about Autotrophs here:-

brainly.com/question/11209881?referrer=searchResults

#SPJ9

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A longshore current flowing southwards along a coast will primarily transport sediments
babunello [35]

Southwards parallel to the shoreline.

A geological course that is made up of the movement of sediments like silt, clay, shingle and sandd within a coast parallel to the shoreline, which is reliant on oblique approaching wind direction is called longshore drift. Oblique incoming wind restraints water along the coast, and so creates a water current which moves parallel to the coast.


4 0
3 years ago
Which of the following is true of vacuoles?
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3 years ago
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What can you infer from this graph?
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3 years ago
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You perform an experiment in which chromatin is isolated from sea urchin sperm cells and briefly digested with micrococcal nucle
irga5000 [103]

Answer:

a) DNA fragments associated with histone proteins are all multiple in length (i.e., 260 bp, 520 bp, 780 bp, etc), thereby suggesting the presence of a pattern of organization in the chromatin  

b) it suggests that each unit of organization (ie, each nucleosome) consists of 260 bp associated with chromatin proteins

Explanation:

The nucleosome is considered as the basic unit of chromatin. A nucleosome consists of approximately two turns of DNA wrapped around a core of eight histone proteins (i.e., a histone octamer). The histone octamer consists of two copies of each of the histones H2A, H2B, H3, and H4. Moreover, the nucleosomes are connected together by linker DNA sequences which vary between 10 and 100 bp in length.

8 0
2 years ago
Ligases are enzymes that link two dna fragments together. Suppose a bacterium develops a mutation in the ligase gene needed for
Goryan [66]

Answer:

Cell will not replicate because of incomplete DNA replication.

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DNA replication is crucial for reproduction/replication of any organism as it involves the duplication of genetic material. So if an organism is unable to perform proper DNA replication it would not be able to reproduce.

DNA polymerase is the enzyme that synthesize the new DNA strand in DNA replication. DNA polymerase can synthesize a strand only in 5'→3' direction. Both of the strands of DNA molecules are opposite in direction. So one strand is synthesized continuously called as leading strand while the other strand is synthesized in form of okazaki fragments called as lagging strand.

The okazaki fragments are joined together by the enzyme ligase. So if Ligase enzyme is absent in bacteria it would not be able to synthesize the lagging strand of DNA and thus could not be able to produce a replica of DNA. And if there is No replication of DNA then No replication of cell would occur.

8 0
3 years ago
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