Ascientist observes two stars in the night sky through a telescope. star a is white in color and relatively dim. the star’s estimated temperature is very high.
star b is red in color and extremely bright. the star’s temperature is low compared with other stars.

the scientist classify the two stars.
star a is ( a. black dwarf b. white dwarf c. neutron star d. red super-giant)
star b is ( a. black hole b. red dwarf c. red giant d. supernova)

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes

What type of cell division is used to replace old cell?