The hypothesis of was that all the continents once were joined as a single supercontinent and have since drifted apart. plz

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.