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guajiro [1.7K]
3 years ago
15

Which of the following best explains what would happen if there were no decomposers in an ecosystem? (1 point)

Biology
2 answers:
Elina [12.6K]3 years ago
6 0
<h3><u>Answer;</u></h3>

A). Organic compounds would not be available for use by autotrophs.

<h3><u>Explanation;</u></h3>
  • The stability of an ecosystem depends on the actions of the decomposers.
  • Therefore, if there were no decomposers in an ecosystem then, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
  • The carbon and nitrogen necessary to build organic compounds, and then cells, allowing an organism to grow, would be insufficient. Other nutrients necessary for an organism to function properly would also not be sufficient.
stich3 [128]3 years ago
6 0

Answer:

The correct answer is option A, that is, organic compounds would not be available for use by autotrophs.

Explanation:

Decomposers play an essential part in the accurate working of the environment and the ecosystem. The decomposers degrade the substances found in the dead species or any non-living component. The prime function of decomposers is to clean the nature by modifying the composite organic substances found in the waste components and dead species into basic organic constituents that eventually goes inside the soil, and makes the soil fertile for the autotrophs or producers.

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3 years ago
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1. Please describe the signal transmission across a myoneural junction that allows the nervous system to move the muscles of a f
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4. Exocytosis of acetylcholine into the synaptic cleft occurs.

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Which statements about the phylogenetic tree are true?
Alex777 [14]

Image is not avilable fo rthe question. The image is attached below:

The phylogenetic tree shown here displays the major clades of chordates.

Which statements about the phylogenetic tree are true?

A) Organism (c) is a common ancestor of lampreys and lungfishes.

B) Birds and ray-finned fishes have a notochord and jaws.

C) Lancelets and coelacanths are more closely related than are chimaeras and coelacanths.

D) Mammals and turtles are more closely related than are lungfishes and sharks.

E) Rays and frogs have vertebrae.

F) Descendants of organism (d) have limbs with digits.

G) Hagfishes, lungfishes, and frogs have lobed fins.

H) Organism (a) is a common ancestor of all chordates.

Answer:

B, D, F, E, H.

Explanation:

A phylogenetic tree is a diagram representing evolutionary relations between species. Phylogenetic trees are not conclusive evidence nor theories. In a phylogenetic tree the pattern of branching illustrates how organisms or other groups developed from a set of similar ancestors.

Some of the examples of phylogenetic tree are as following:

  • A notochord and jaws includes in birds and ray-finned fishes.  
  • Mammals and tortoises are closer to one another than lungfish and sharks are.  
  • Organic Descendants (d) have wings.  
  • Rays and frogs are columned vertebrally.  
  • A shared ancestor of all chordates is the organism (a).

Hence, the true options are B, D, F, E, H.

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Which of the following was NOT a job available to English colonists?
ankoles [38]
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