Anew species is discovered and scientists are trying to classify it. one of the key features found is that the species is entirely dependent on other organisms for its food necessary to sustain life. what type of species is this? a. autotrophic b. mixotrophic c. producer d. heterotrophic

Option D

Explanation: The organism that cannot synthesize their own food are kept in the category of heterotrophs. These organism derive their energy from the organism that make food.

These organisms lack the ability of making food by the help of the process  photosynthesis. They lack the pigment required for this process.

These kinds of organisms are termed as Heterotrophic organism.

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides