Which are the first cells to arrive at a bacterial infection? O A. Macrophages
O B. Antigens
O C. Lymphocytes
OD. Neutrophils

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

The carrier molecules of the electron transport system are located in the

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm