Rust on rocks is it a Mechanical or

chemical

A blood pressure of 60 over 80 would indicate that a patient had ... a) high blood pressure b) normal blood pressure c) low blood pressure d) not been correctly monitored (this reading is impossible)

Q5: does a child inherit 50% of all their DNA from mom and 50% from dad?

How did doubling the rabbit population affect the grass, snakes, and hawks first

Describe the changes in Earth's biodiversity over geologic time scales, including mass extinctions.

Plete each question by choosing or typing in the best answer. 1) A group of hikers find a fallen tree in a forest. The dead tree trunk is covered by mushrooms and other fungus.

Battery disposal is a disadvantage of which form of energy?

If a cell has 4 pairs of chromosomes, after mitosis each daughter cell will have how many chromosomes?

Which two families of flowering plants provide protein for the majority of humans?

A. what are the primary abiotic factors that will affect life underwater? b. Explain how the abiotic factors such as depth, Temperature, and some other mentioned in the questions before affect aquatic organisms.

What is a prokaryote, and when did prokaryotes arise?