Which of the following choices contains two ways in which carbon dioxide
enters the atmosphere?"
O A erosion and transpiration
O B decomposition and respiration
C volcanic activity and photosynthesis
Dhuman activity and formation of fossil fuels

Q1.8. continuing your studies, you perform a transplant experiment. you chisel up multiple rocks from the upper intertidal zone, each holding 10 individuals of species a, and move them to the lower intertidal zone among individuals of species c. you count the number of individuals of all species on the rocks every day for 30 days. based on your findings, what can you conclude? (remember that all 3 species settle in this zone at equal rates.)

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f