Why is a second blood test necessary three months after a person thinks he or she has been exposed to hiv?

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Pls need ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

This is collection of data made by comparing objects in standard units. in science, the units are metric.