Arrange the following organisms in order from earliest to latest appearance: amphibians, jawless fish, trilobites, bony fish.

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.

Cedric has a low fever and minor aches. yesterday, he went to the doctor for his booster shot and receive the flu shot. which best explains why he has this reaction?

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities