Which of the following about a nucleus is true? e. a nucleus is the cell’s DNA/
f. a nucleus is a membrane-covered organelle inside a prokaryotic cell when its DNA resides.
g. a nucleus is a membrane-covered organelle inside a eukaryotic cell where its DNA resides.
h. a nucleus is also known as a cell membrane.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Which feature would you expect to find in a population in which sexual selection depends on male competition?

Astudent constructs a venom diagram to compare the organelle last in plant and animal cells which organelle should be listed under “both” in the diagram?