Which of the following about abiotic factors in ecosystems is true?
a.
abiotic factors in healthy ecosystems are not in balance.
b.
abiotic factors are located in the soil of ecosystems only.
c.
abiotic factors are part of a dynamic system.
d.
abiotic factors in ecosystems are used up by the living components.

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

In the diagram below, which organelle is a ribosome, which combines amino acids and produces proteins? оооо

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. me % babies born at different weights - babies born in that category which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and totum save and exit next submit type here to search