Which of the following is the raw material from which sedimentary rocks are formed?

A. lava from volcanic eruptions

B. magma from the mantle

C. weathered remains of other rocks

D. none of these

Under which conditions is it appropriate to re-contact the individuals who provided biological specimens?

What are the monomers of proteins

Which amino acid chain will be formed by the codons below AAG AGA UGA

What are the components to a freshwater ecosystem?

Can be separated physically is it a mixture or a element or a compound

Why do many different types of proteins exist even though there are a limited number of amino acids

What is a difference between embryonic and adult stem cells? embryonic stem cells are undifferentiated; adult stem cells are partially differentiated. it is easier to enucleate embryonic stem cells.

A cell must be from a plant if the cell has:

What are two examples of the way the actions of humans harm some living things?

The chart shows the percentage of different elements in the human body. Which element is the most prevalent in the human body? (A) nitrogen (B) hydrogen (C) carbon (D) oxygen