What weird creature lived during the cambrain period that was characterized by seven pairs of legs a tube like body and a row of spikes on either side of its back?

Nitrofurantoin used during the fifth week of pregnancy places the neonate at risk for which condition?

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

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.