Meiosis is important for sexual reproduction because it gives sex cells (gametes) what unique feature?

The cross-section, or diameter, of the hair shaft is much larger in coarse hair than in which of the following? A. Fine hair B. Gray hair C. Curly hair D. Blonde hair

What are two ways DNA and RNA differ?

When substances are put together, broken into their most basic particles, and spread evenly through another substance they form a?

3) Atoms in the same family on the periodic table have ___ numbers of valence electrons & ___ properties a) dissimilar, dissimilar b) dissimilar, similar c) similar, similar d) similar, dissimilar

What does primary productivity measure?

How is an allele described? form of a gene one haploid cell part of a chromosome short segment of DNA

Because cell membranes are selectively permeable they are capable of interacting with the outside environment. This interaction enables the cell to

How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm is encased in a grain of pollen to travel to an egg. C.

Which is used by scientists to find out how different species are related? a. the locations of islands in an ocean b. the food an organism eats c. the order of amino acids in a protein

What word or phrase would you use to describe this genotype? AA