What do most birds do in the wintertime?
a.
they stay in their nests all winter to keep warm.
b.
they group together to keep each other warm.
c.
they find a warm garage or vacant building to live in.
d.
they fly south for the winter because more food is available and it is warmer.
need !

Chimeras are interesting organisms that have two different sets of dna. chimeras occur when when two different zygotes fuse to form one organism. some chimeras have no outward symptoms,while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process