What is a base?

a) a substance that is alkaline

b) a substance that can accept an OH ion

c) a substance that can donate an H + ion

d) a substance that has a low pH value

Jaimerais avoir des exercices en anglais

Which task would be completed by an ecologist? Question 1 options: explore the medicinal uses of nectar inoculate cattle against infection survey and classify mollusk fossils test the effect of cyanide on algae

Which was part of Aristotle's primary biological classification system?

A carcinogenic mutation is not inheritable. What could be the reason for this?. A: it occurs in germ cells and can be passed on to decendants during reproduction. B:the mutations could be treated by chemotherapy.

The average human pulse rate is (beats/minutes): A : 60 B : 72 C : 88 D : 98

What is the advantage of having a folded membrane surrounding the cell, within the cytoplasm, or within an organelle?

Considering the effects of nutritional deficiencies on the immune system, severe deficits in calories and protein lead to deficiencies in the formation of which immune cells?

Which process takes place in meiosis but not in mitosis

Which process would enable a white blood cell to ingest a bacterium?

Elements are composed of atoms of at least two different types. a. True b. False