What molecules make up the rails on the DNA structure

Which type of reproduction produces an exact copy of the parent organism? Sexual reproduction Replication Mitosis Asexual reproduction

Who is the discover of photosynthesis?

You are doing an experiment outside on a sunny day. you find the temperature of some sand is 28° c. you also find the temperature of some water is25° c. explain the difference in temperatures.

The chronic inflammatory lesions in the pancreas and persistence of symptoms seen in chronic pancreatitis are most frequently the complications of

Albinism is a genetic mutation that results in some animals being born without the enzyme that produces the pigment for skin and eye color. All BUT one statement is a possible explanation for this mutation. Which is NOT an explanation?

Since mature red blood cells do not contain a nucleus, more room is available for what?

What does a cladogram show about organisms?

What is the most efficient enzyme known that can catalyze hydrogen?

The process where sediments turn into a sedimentary rock through compaction or cementation is called

Muscles in animals are often found in pairs, because A. muscles need to be able to both push and pull. B. muscles can only push. C. muscles can only produce a force as they relax. D. muscles can only pull.