The bloody-heart lichen is composed of a fungus and an alga. The alga makes food through photosynthesis and the fungus encloses the alga, providing support. What kind of relationship is this?
A
competitive
B
commensal
C
mutualistic
D
parasitic

How was the climate when the ambulocetus was alive

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables