How might irrigation harm soil and soil organisms? A. It can waterlog the topsoil. B. It can recirculate salts to the topsoil. C. It can leach minerals from the soil. D. It can cause compaction.

Which of these can be used to see how climate has changed over time? A. ice cores B. tree rings C. both of these

What evidence does Dr. White use to describe the species Ardi as "neither a chimp, nor ... human."

What proses does binary fission undergo witch type of reproduction?

What digestive substances are bound to the microvilli of columnar epithelial cells of the small intestine?

Which of these would require signal transduction? a. Sound stimulation the transcription and translation of proteins involved in inner ear hair. b. Sugar stimulating the production of sugar degrading enzymes c. Both require signal transduction.

Water vapor becomes liquid water droplets

In a plant, the allele for tall stems (T) is completely dominant to the allele for short stems (t). A second gene located on a separate chromosome determines flower color.

Hemophilia is a condition in which blood does not clot properly. What is the main effect of this condition?

Thrombocytes develop from large cells known as macrophages? True or false?

How many cellular divisions occur in meiosis?