The red structure represents a. ANSWER I WILL MARK BRAINLIEST.

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

Homo heidelbergensis was a tall, muscular hunter, who used both tools and weapons. because h. heidelbergensis was not a gatherer/forager, but ate a varied diet including meat and fish, we would expect to see what anatomical changes?