This year will have a February 29th if, and only if, this is a leap year. Which word phrase in the statement makes this a biconditional?

Both Gregor Mendel and Alfred Wegener proposed ideas that were not accepted completely by the scientific community during their lifetimes.

Which is an abiotic factor that characterizes the taiga biome? A. coyotes B. coniferous trees C. long, dry, cold winters D. long, dry, hot summers

What is not associated with DNA during interphase of the cell A. histones B. Chromosomes C. Double helix D. Chromatin

Which key feature distinguishes a synovial joint from other joint types?

If a DNA molecule is compared to a spiral staircase what parts makes up the steps

How far is the sun from the earth?

An Average human muscle contains more than 1,000 mitochondria. Explain why

A unique species of snail has been discovered in the Negev Desert. At night, these snails use a toothlike rasping organ in their head to scrape up porous limestone; they then digest the algae that lived in the rock pores. This scraping organ is the:

When double stranded dna is "cleaved" or cut. there are two ways that the cut might be repaired what are the two ways?

Companies have been collecting data on an organism in a habitat surrounding a local tidal power plant. They compare data with a habitat that is not near a local tidal power plant.