a. formed from 3 layers but have no cavity.
b. organs formed from mesoderm cells.
c. digestive tract runs entire length of body.
100
What is symmetry?
a balance in proportions of an object or organism
100
What is the sail fin on an iguana?
Dorsal
200
What is an organism that doesn't move place to place?
Sessile
200
What is the driest biome?
the desert
200
What is 4 characteristics of pseudocoelomates?
1. fluid filled body cavity
2. organs formed from mesoderm cells
3. moves quickly because of muscles are attached to the mesoderm
4. digestive tract
200
What is bilateral symmetry?
can be divided down its length into almost equal haves
200
What is the back of your neck?
Dorsal
300
What are smaller versions of an adult?
Juveniles
300
How much precipitation does the rain forest get per year?
200-600 cm/yr
300
What is 3 jobs of exoskeleton?
1. protects soft body
2. prevents water loss
3. found in invertebrates
300
What is an posterior?
the tail
300
What is the mouth of a shark?
Ventral
400
What is a hollow ball of cells?
Blastula
400
What animals are found in the grassland?
Lions, cheetahs, zebras, etc.
400
What is 5 characteristics of coeloms?
1. greatest diversity
2. cushions and protects internal organs
3. fluid filled space surrounded by mesoderm
4. provides space for muscle growth
5. digestive tract
400
What is an example of a bilateral symmetry?
a spider
400
What is the pouch of a kangaroo?
Ventral
500
What is formed when one side of the blastula folds inward?
Gastrula
500
What is the 3 layers in the rain forest?
Canopy, understory, and the ground.
500
What is 7 characteristics of animals?
a. eukaryotics
b. multicellular
c. heterotrophic
d. composed of cells
e. digest food
f. move of obtaining food
g. do not grow entire life.
500
What is another bilateral example?
acoelomate- flatworm
500
What is the navel of a killer whale?
ventral- like belly button
dorsal- for the blow hole
ventral is the better answer