All animals are _______________

Animal cells don't have ____________

Heterptrophs means must consume ____________ for their carbon sources

Animals are ___________

Animals are complex organisms because of their_________

some animals digest food within individual cells, others digest food using _________

food is stored in animal bodies as __________

The two body systems that allow animals to move and respond to changes are___________

Having specialized cells that enable animals to seek out food, mate and protect themselves from predators, is a definition of ______________

The process of uniting a sperm cell with an egg cell to form a zygote is called

An eight-cell stage embryo continues its development to become a __________

when the blastula folds inward, a _____________ is formed

The 3 embryonic layers formed during gastrulation are _________

The outer layer of a gastrula is the __________________

The inner layer of a gastrula is the ____________