The diagram below shows the change in plant species during ecological succession, beginning with the pioneer species. Which type of plant species does species 2 most likely represent?

Classify the structures as homologous or analogous, depending on their structure and function.

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time