Answer:
Genes
Explanation:
Genes code for proteins that leads to certain traits to be expressed, leading to phenotype to be seen based on different genotypes expressed.
Answer:
D
Explanation:
It is often like this: cell->tissue->organ->system
Answer:
The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
Answer:
the answer would be the first one which is sexual reproduction