Which of the following is an example of a parasite? a. A flea that bites an animal and sucks its blood to survive.

b. An orchid flower that sits on a tree branch

c. The bacteria that live in human intestines and help humans digest things.

d. An Egyptian plover that cleans a crocodile's teeth.

hmm helpo?

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic