If two species have very similar structures, they have evolved from a

Which characteristics describes all eukaryotic but no prokaryote

How do the nervous system of clams and octopuses differ?

What is the analysis of grade? Group of answer choices A state-regulated, guaranteed concentration of essential elements in a fertilizer product A technique used to determine fertilizer quality.

What is the correct sequence after an egg is fertilized?

When aerosols containing pathogens spread disease from a distance of less than one meter, it is considered A) waterborne transmission. B) airborne transmission. C) vector transmission. D) contact transmission.

What are facts about embryonic stem cell research?

Which is a cause of mechanical weathering? A. sunlight B. oxidation C. physical forces D. natural acids

Both chloroplasts and mitochondria are like in that they both have membranes and their own

Which of the following is an example of an organ? A) Stomach B) Brain cell C) Muscle Tissue D) Heart

In a cell that is not dividing, the unwound, filamented mass of dna and associated proteins is called