In salt water fish, chloride cells in the gills: a. passively transport Cl- from the ECF to the external environment. b. actively transport Cl- from the external environment to the ECF. c. actively transport Cl- from the plasma to the ECF. d. actively transport Cl- from the ECF to the external environment.

Why do you think the puppy litter was all dark-haired?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Explain why ecosystem diversity results in species diversity in a healthy biosphere