What is made of a single, long molecule of DNA?

allele

nucleus

chromosome

protein

Which of these parts of our nonspecific defense occur on the interior of our bodies? A: Skin B: Saliva in mouth C: Natural Killer cells D: Digestie juices E: Phagocytes F: Nasal mucus

About 1.2 billion years ago, eukaryotic and multicellular organisms evolved because

Humans have 23 pairs of chromosomes. by contrast, chimpanzees have 24 pairs of chromosomes and lack any pair resembling the long human chromosome 2 pair;

A student plants an experiment to find out if house plants will grow faster when they are watered more. Describe two variables that the student should keep constant

Consider the prompt. We would expect to see TSG's activated at which location (s) in the cell cycle? A) A B) D C) B and D Eliminate D) A and C

Bacteriophages are bacteria that engulf and destroy viruses

What important role do fungi play in the environment

N males, which of the following organ performs a dual function of ejaculation of sperm and voiding of urine?

Men do not have all ___ in their testes at birth.

All of the following compounds are fibers except a, pectin b, hemicellulose, c, cellulose. d. lignin e, glycogen