True or False: Animals lack cell walls.
What type of animal consumes autotrophs?
What type of animal consumes heterotrophs?
What type of animal consumes both heterotrophs and autotrophs?
The germ layer is composed of what?
Answer: Ectoderm, mesoderm, endoderm
What is the larva stage?
Answer: Sexually immature stage that looks different from adult stage
What is metamorphosis?
Answer: Marked change in body form
What animals are not organiz
Describe the cleavage pattern of deuterostome embryonic cells?
Answer: New cells do not develop along an axis on top of 4 cell embryo.
What happens to protostome embryo cells when fate cells are excised?
Answer: Development is arrested.
What happens to d
What does the extracellular matrix does what to the plasma or cell membrane?
Answer: Supports the membrane
What communicates with the cytoskeleton?
Answer: Extracellular matrix
What are glycoproteins?
Answer: Proteins with sugar chains attached
How many phyla are metazoans divided into?
What is molecular systematics?
Answer: Analyzing unique sequences within certain genes to identify clusters of
What 2 features do most phylogenies agree on?
Answer: Separation of annel
What does the mesoderm give rise to? What region is it located in?
Answer: Skeleton, muscles, circulatory system, kidneys, & reproductive system.
In middle region of germ layer.
What does the endoderm give rise to? What region is it located in?
What kind of symmetry do sponges have?
What kind of symmetry do most animals have?
Answer: Radial or bilateral symmetry
What is radial symmetry?
Answer: When any plane passing through an animal's center divides the animal
into mirror im
What type of animals live mainly/entirely on land?
What type of animals live mainly/entirely in water?
T/F Some animals reproduce asexually.
Germ cells are also known as?
In embryo developm
What is an open circulatory system?
Answer: When there's no distinction bewtween circulating/extracellular fluid.
What is a closed circulatory system?
Answer: Circulatory fluid is enclosed in blood vessels and transported
What gives ri