Which of the following infectious doses would indicate a pathogen with more virulence factors? 10
1,000,000
1,000
10,000

sex cells are usually half's then they find another half and make a fertilize egg

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?

d. planting trees

the trees take in carbon to make oxygen.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.