Who figured out a way to determine the type of blood from a dried bloodstain

What do they call the hybrid when a donkey and a horse mate

A scientist is studying an organism and has classified it as an animal. Which statement must be true about the organism? A) It is multicellular. B) It displays radial symmetry. C) It has a backbone. D) It contains cells without nuclei.

Sugar loaded into the source end of the phloem draws water into the sieve tubes by osmosis, raising the pressure. What happens to the water at the sink end?

When would chromatin be the most tightly coiled?

Classify each phrase as applying to the lytic cycle, the lysogenic cycle, or both types of reproductive cycles of phages.

When a light is on it is part of a scolde circuit

What type of symmetry does an organism have if it has five identical parts extending from a central hub? A. bi-radial symmetry B. mirrored symmetry C. penta-radial symmetry D. tubed symmetry

Most cars contain external combustion engines. True Or False!

There is a mutation in the gene that encodes tRNAlys. The mutation does not affect the anticodon in tRNAlys but results in a tRNAlys that is recognized and charged by aminoacyl-tRNAser synthetase.

What characteristics do biologists use to classify arthropods?