What is meant by the following statement.

the cell membrane is semipermeable?

How do cells regulate gene expression using alternative rna splicing?

Which is not a characteristic of minerals? are solids with a fixed shape and volume are organic in nature are naturally occurring have a definite chemical composition have a definite crystal structure

What is cell membrane

What causes cold, deep currents to from in the oceans near the poles

Radioactive dating of fossils and rocks is possible because radioactive isotopes

Greg checks his watch one day at noon when the Sun is directly overhead. He decides to check his watch when the Sun is directly overhead again tomorrow.

What is the primary function of the juxtaglomerular complex?

Which is an example of how stem cells are currently being used

Describe the type of evidence that scientists used for classifying organisms before they were able to sequence dna

Which of the following is true for DNA but not RNA? Release of PPi from the monomer provides the energy for polymerization. It has 4 different bases. It has secondary structure. None of the above; all are true for both DNA and RNA