Which of these creatures are real?
a. xenomorph
b. fish in trees
c. headcrab
d. antlion
e. grunt

What are two reasons for why a species might disappear from the fossil record?

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?