Marsupials are found in north america and australia, but they would not have been able to swim across the ocean. according to scientists, how did this group of organism come to live on two separate continents ?

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.

What does the positioning of transcription factors determine?

Warmer ocean surface water would most likely be found near