Which of the following is a metal?

A.

calcium (Ca)

B.

iron (Fe)

C.

sodium (Na)

D.

all of these

Describe the role in water in a hydrolysis reaction

Explain why a plasmid and a segment of DNA to be inserted into a plasmid must be cut with the same restriction enzyme. Use the term sticky ends in your response.

Which statement correctly explains whether more ATP is found in muscle cells or bone cells? A. More ATP is found in muscle cells because they use energy less efficiently than bone cells. B.

What is the climate zone around the equator that extends from approximately 23.5 degrees north latitude to 23.5 degrees south latitude

What's the jet stream and why is it important

As a future biologist, you are studying alien cells from the planet Pandora in the Alpha Centauri star system. You find that these cells contain RNA consisting of 10 different nucleotide bases, and proteins consisting of 76 different amino acids.

Using renewable resources while ensuring that they are not depleted is a practice called

How many molecules of atp can be produced from one molecule of glucose, both when oxygen is present and where oxygen is absent?

What's the mechanism of the phospholipid bilayer of the cell membrane?

Describe the role of stem cells in multicellular organisms