Animal basics
What is the smallest unit of life in an animal (or any living thing)?
Cell
What is the difference between a vertebrate and invertebrate?
Vertebrates have backbones while invertebrates do not.
What are the 2 types of cnidarian body types?
polyps and medusas
What are 2 things that mollusks and arthropods have in common?
both animals, both invertebrates, both have exoskeletons, both are heterotrophic
How many legs do insects have?
All animals are heterotrophs, autotrophs, or omnitrophs?
Heterotrophs
What are the 2 types of symmetry that animals can have? List an example of an animal with each.
Bilateral symmetry: humans, cats, dogs, etc.
Radial symmetry: starfish, sea urchins, jellyfish, etc.
How do worms contribute to their ecosystems?
Loosen soil which allows air and nutrients in, also allows plant roots to grow more easily.
Decomposers that help break down dead matter.
What is the purpose of an arthropod's exoskeleton?
protection, prevents too much water from evaporating out of the arthropod, provides body structure
Insects are a type of what group?
arthropods
What is homeostasis?
the constant process of maintaining stable internal conditions
What is benthic ecology?
The study of the deep ocean/ocean floor ecosystem
You guys freaked out when I told you that 1 million worms live in each square meter of damp sand on the beach. Out of the 3 major types of worms (roundworms, flatworms, and segmented worms), which type of worm are those?
Roundworms
What are 3 examples of crustaceans?
lobsters, crabs, crayfish, shrimp
Insects are the only known invertebrates with _______.
wings
What are the 4 levels of structure in animals?
Cells, tissues, organs, systems
What is a colony?
A group of many individual organisms living together as one (like coral and Portuguese Man-of-Wars)
Sponges have a unique process of asexual reproduction. What is it called?
Budding
What are 2 of the 5 groups of arthropods?
crustaceans, arachnids, centipedes, millipedes, and insects
What are 3 examples of echinoderms?
sea stars, sea urchins, brittle stars, sea cucumbers
Do animals reproduce sexually or asexually?
Both! Most reproduce sexually, but some can reproduce asexually if they need to.
What type of animal is coral?
Cnidarians! Polyps, specifically.
What type of symmetry do sea sponges have?
None! They are one of very few animals that do not have body symmetry.
What is molting?
Echinoderms have an _____(endo/exo) skeleton.
endoskeleton!