A substance that enters Earth's cycles and does harm to living things is

A. a pollutant.

B. freshwater.

C. hydrogen.

D. oxygen.

What is a research finding?

Who came up with the cell theory

Suppose that the plasma membrane around a eukaryotic flagellum is opened to reveal the axoneme inside. the radial spokes connecting the peripheral microtubule doublets to the central pair are then broken by chemical treatment and atp is added.

What happens when oxygen atoms share electrons A) They form covalent bonds B) They form ionic bonds C) They form polar molecules D) They form water molecules

Which of the following distinguishes the 38 organisms in the kingdom Fungi from other Eukaryotic organisms A - Fungi reproduce using spores B - Fungi obtain nutrients by absorption

Is an apple core biodegradable?

Why is zachs hair dark like his mothers and not bond like his fathers

What is Atlcin's diet and how does it work?

Which statement is incorrect? Group of answer choices All of the following are correct Muscle cells are surrounded by a branching network of transverse tubules.

What event occurs when a microbe acquires a genc mutation that allows it to resist the effects of a. Virulence b. Infection c. Antibiotic resistance d. Placebo effect