Animals are ________ that ingest their food.

animals are multicellular ________.

animal cells lack _____ ______. (NOT cell membranes)

________ are groups of cells that have a common structure and/or function.

after a sperm fertilizes an egg, the zygote undergoes rapid cell division called _______.

cleavage leads to a formation of a ________.

the blastula undergoes _________, forming gastrula with different layers of embryonic tissues.

(slide 5- know what it looks like)

a ________ is a sexually immature and morphologically distinct from the adult.

larva eventually undergoes __________.

all animals, and only animals, have ______ ______ that regulate the development of body form.

zoologists sometimes categorize animals according to a _____ _____, a set of morphological and developmental traits.

Some animals have _____ ________.

(slide 10)

two sided symmetry is called ______ _________.

(slide 10)

(bilaterally symmetry)

a _____ (top) side, and a _______ (bottom) side.

(bilateral symmetry)

a right and left ______ sides.

(bilateral symmetry)

_______ (head) and ________ (tail) ends.

_________, the development of a head.

During development, three ____ ______ give rise to the tissues and organs of the animals embryo.

(slide 12)

Most diploblastic animals possess a _____ _______.

a true body cavity is called a ______ and is derived from mesoderm.

__________ are animals that possess a true coelom.

a ___________ is a body cavity derived from the mesoderm and endoderm.

Triploblastic animals that lack a body cavity are called ___________.

based on early development, many animals can be categorized as having ________ development or _________ development.

in protostome development, cleavage is _______ and ________.

in deuterostome development, cleavage is _________ and _________.

in protostome development, the blastopore becomes the ________.

in deuterostome development, the blastopore becomes the _______.