Show:
Animals
Sponges and Cnidarians
Worms and Mollusks
Arthropods
Echinoderms
100
What is the difference between anatomy and physiology?
Anatomy is the study of structure, whereas physiology is the study of function
100
What body symmetry do sponges have?
None
100
What structure do gastropods have that help them obtain food?
Radula
100
What do all arthropods have in common?
Outer skeleton, segmented body, and jointed appendages
100
What kind of skeleton do echinoderms have?
Endoskeleton
200
Name an animal that has radial symmetry
Starfish, sea urchins, jelly fish
200
How do sponges obtain oxygen and food?
Water currents bring them to the sponges
200
Most mollusks have a(n) ________ circulatory system, whereas segmented worms have a(n) ________ circulatory system
closed, open
200
How many body sections do insects have?
Three
200
What are the projections on an echinoderm's body that allow them to move?
Tube feet
300
Animals can be categorized into 35 major groups, each of which is called a _________
Phylum
300
How do cnidarians obtain food?
They use stinging cells to capture food
300
What are the three types of worms?
Flatworm, round worm, segmented worm
300
Which group of arthropods has the least number of pairs of antennae?
Arachnids
300
How do echinoderms reproduce?
Males release sperm into the water, and females release eggs into the water. Fertilized eggs develop into larvae and eventually undergo metamorphosis to become adults.
400
What is tissue?
A group of similar cells that perform a specific function
400
What is the difference between a polyp and a medusa?
Polyps are adapted to being attached to a surface, whereas medusas are adapted for swimming
400
All mollusks have a mantle. What is the function of the mantle?
It covers and protects internal organs, including an organ called a foot.
400
What is the difference between complete and gradual metamorphosis?
Complete has distinctly different stages. Gradual has no distinct larval stage
400
What does the water vascular system do?
It helps the echinoderm to move
500
What are the four main functions of animals?
1) Obtaining food and oxygen 2) Keeping conditions stable 3) Movement 4) Reproduction
500
The cnidarian life cycle is similar to plants. What would be analogous to the gametophyte and the sporophyte?
Sporophyte = polyp Gametophyte = medusa
500
Describe the life cycle of a tapeworm.
An infected prey is eaten by a predator. The worm attaches itself in the digestive tract of the predator. The tapeworm grows and releases sperm and egg. Fertilized eggs are released with the predator's waste. The waste may be picked up by a prey, and the prey gets infected.
500
What are chelipeds?
The big claws on a crustacean used to help gather food
500
What are the four major groups of echinoderms?
Sea stars, brittle stars, sea urchins, sea cucumbers