How do determine the trophic level of a species?

Biology

1 answer:

nikdorinn [45]2 years ago

8 0

Answer:

plants and algae make the own food and are called producers herbivours eat plants are called consumer carnivouros that eat herbivourous are called secondary consumer carnivouros that eat other carnivourous are called tertiary consumer

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Eighty percent of nephrons in the human kidney are located in the ________ and have short nephron loops.

lesantik [10]

answer:

renal cortex.

explanation:

eighty - five percent of nephrons are cortical nephrons,

deep in the renal cortex; the remaining 15 percent are

juxtamedullary nephrons, which lie in the renal cortex

close to the renal medulla.

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2 years ago

What is the shortest period in which a population of darwin's finches can evolve?

Studentka2010 [4]

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3 years ago

Where does spongy bone occur in the skeleton?

Murrr4er [49]

spongy bone is found in the bones of the skull, sternum, vertebrae, the pelvis, the lining of the marrow cavity and the epiphysis.

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3 years ago

Pls help

DochEvi [55]

Answer: Don't know sorry

Explanation:

4 0

3 years ago

Of the following choices, what is the approximate LD50 of the least toxic substance? 20 mg/kg, 70 mg/kg, or 130 mg/kg

pychu [463]

The approximate LD50 of the least toxic substance will be 130 mg/Kg.

The dose necessary to cause the death of 50% of a population under test after a predetermined test period is known as the LD50 value for a drug.
Commonly used as a broad indicator of a substance's acute toxicity are LD50 values.
Greater toxicity is indicated by a lower LD50. A low LD50 of 500 mg/kg or less implies severe toxicity.
Moderate toxicity is indicated by an LD50 of 500 to 1,000 mg/kg. A modest toxicity level of 1,000 to 2,000 mg/kg is indicated.
The species is especially vulnerable to the poison if the LD50 is low. The lethal dose (LD50) of a specific poison might change significantly between several animal species.
Thus out of all the options, LD50 130 mg/kg will have the lowest toxicity and 20 mg/kg will be the highest.

learn more about LD50 here: brainly.com/question/24845532

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2 years ago