What element do all organic compounds contain?

Nitrogen

Oxygen

Carbon

Hydrogen

Do sponges have joints

A few years after a major oil spill, which area is most fragile in terms of biodiversity? 1 benthic areas 2 polar water 3 middle water 4 open ocean

In the structural organization of many eukaryotic genes, individual exons may be related to which of the following?

What covers a cell, for biology.

Does kinetic energy have more energy in the solid state than in the liquid state?

Why can alternative splicing of messenger RNAs (mRNAs) be advantageous for eukaryotic organisms? A-allows exons from two different genes to be spliced into a new mRNAB-increases the variety of proteins that can be producedC-decreases the average

Karen has type 1 diabetes, and she often forgets to administer insulin to herself. why does her breath usually have a fruity odor?

3. In the Phylum Porifera, the highest level of organization is arguably only at the cellular' levél. How have the cnidarians become more complex in terms of organization? What does this mean?

Explain the biological process that enables the roots epidermal cells to do this

Which term describes when individuals leave more offspring than other individuals?