PLEASE HELP ASAP What negative consequence can occur when non-native species are introduced into an ecosystem?

Native species will prey on the invasive species.
The introduced species prey on native species.
The introduced species mate with native species, adding genetic variety.
The introduced species strengthen the ecosystem by adding diversity.

Rotenone is an insecticide that is toxic

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur