What formed at the center of the nebula after spinning occurred?

These are complex proteins that speed up chemical reactions by lowering the amount of energy needed to get the reaction started.

Which is an organelle that performs cellular respiration and is paired with its correct function?

When examining cells in the lab you noticed a particular tissue sample is 45% of the cells in the mitotic phase how do you explain this observation

Molecules tend to move from an area of high concentration to an area of low concentration in a process known as

Which term is used to describe this type of genetic disorder

Plant cells can synthesize organic molecules and later break them down to extract that energy for performing life processes. These activities require direct interaction between the

Which of the following is a key element of naturalism

Jan noticed that when she put a tomato in water, it sank. When she put an apple in water, it floated. Why did the tomato sink while the apple floated?

an ___organism has different types of cells that are specialized for various functions. (fill in the blank)

What process reshuffles allele combinations between homologous chromosomes? a. genetic recombination b. asexual reproduction c. independent assortment d. mitosis