What supports the theory that the universe is expanding?
a: parallax
b: light-year
c: main sequence
d: h-r diagram
e: red shift
f: fusion
g: elliptical galaxy
h: barred spiral galaxy
j: irregular galaxy
k: milky way galaxy

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

In guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i