The lumen of a hollow organ such as the stomach is considered to be part of the environment.

Apart of an ecosystem that can restrict the growth of a population is referred to as

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

Amines amides and amino acids are categories of