A girl walks 2 km north, then 2 km east, then 2km south, then 2km west. what distance does she travel? what is her displacement?

What are two raw materials necessary for the process of photosynthesis?

Which two space shuttle's were lost to explosions?

A) Chromosome B) DNA nucleotide C) Codon D) Gene Place the components in order, from smallest to largest. A) A0B0D0C B) B0C0D0A C) C0D0B0A D) D0C0B0A

In corn, the allele A allows the deposition of anthocyanin (blue) pigment in the kernels (seeds), while aa plants have yellow kernels. At a second gene, W - produces smooth kernels, while ww kernels are wrinkled.

Is it true or false scientists must reapeat an experiment for it to be usefuk?

Both klebsiella pneumoniae and streptococcus pneumoniae avoid phagocytosis by releasing a-b toxins that kill leukocytes. a. True b. False

How does a virus cause disease?

Excretion of wastes is important to maintaining homeostasis. which three are involved in the excretion of wastes in humans? A. Urinary, skeletal, reproductive B. Circulatory, integumentary, Muscular C. Digestive, respiratory, urinary d.

How can we predict which elements are stable under natural conditions and which elements tend to undergo chemical reactions

Homologous sequences: A. are expected to have very similar sequences in related organisms B. are expected to have similar sequences in related proteins but from unrelated or distantly related organisms C.