Lake jackson has disappeared and reappeared about four times since 1907. it last disappeared in 1999. which of these most likely caused lake jackson to disappear?

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Genetic orders can result when sister chromatids fail to separate properly during which phase is this problem most likely to occur

Imagine that you are searching your room for a textbook. which portion of the cortex would be most active during this search?