Which organisms would weather the rock to

begin soil formation?

A. Grasses and other pioneer species

B. Bacteria and other decomposers

C. Lichens and mosses

D. Roots of shrubs and trees

2 positive and 2 negative effects of biodiversity

A distraught patient is admitted to the emergency department with symptoms of palpitations, tachycardia, chest pain, and shortness of breath that started 30 minutes ago. the physical examination reveals no physiologic basis for the symptoms.

Which is the first part of the immune system to attack an invader? O A. B cells B. Macrophages O O C. Lysozymes O D. T cells

Which term describes the rate of energy output from a light source? A. absolute magnitude B. apparent magnitude C. luminosity D. temperature

The digestive system is responsible for fighting off infections extracting energy from food delivering oxygen to the rest of the body movement

What might happen if the human body did not have specialized cells, tissues, organs, and organ systems to maintain homeostasis?

Put in order to describe normal neuron communication.

The amniotic egg is a characteristic of amphibians. reptiles. birds. both b. and c ...

Why is it important for a cell to be able to efficiently repair its DNA?

Not getting enough sleep and eating a regular diet of junk food will have what effect on the immune system?