Animal Classification
This kingdom includes all animals.
Invertebrates lack this structure.
Backbone
Fish breathe through these organs.
Gills
Why might a behavior that seems risky (like loud mating calls) still be passed down in a population
Because it increases mating success, which can outweigh the survival risk
2 part: Which is not an amphibian? Salamander, newt, turtle, frog. And, for the one that's not an amphibian, what is it?
Turtle, reptile
What makes two animals part of the same species?
they can breed and produce fertile offspring
Sponges belong to this simple phylum.
Porifera
What is the main job of a backbone?
to support the body and protect the spinal cord
In some species, animals will help raise their siblings instead of having their own offspring. Why might this behavior evolve?
Because it increases their inclusive fitness — helping relatives pass on shared genes
Which animal is not a hypercarnivore? King cobra, lion, polar bear, spider, emu
Emu - omnivore
Insects belong to this phylum.
Arthropoda
How does having an exoskeleton help insects survive?
it protects their body and prevents drying out
Why do mammals have fur or hair?
To help control body temperature
Why might animals use ritualized displays (like puffing up or showing feathers) instead of fighting?
To settle conflicts without physical harm, which helps both individuals avoid injury
What is possibly the only animal product on earth that humans cannot eat, or else they'll likely die?
Polar bear liver - toxic levels of vitamin A
This class includes animals like frogs and salamanders.
Amphibia
Earthworms are part of this segmented group
Annelids
Amphibians have thin, moist skin and lay eggs in water. What does this tell us about their environment needs?
They need to stay near water to breathe and reproduce
What is innate behavior, and what's it's purpose?
Behavior that's genetically hardwired in an organism and can be performed in response to a cue without prior experience. Survival.
Why do larger fish have more mercury than smaller?
Bioaccumulation, the process where substances, particularly toxins, build up in living organisms over time, often in fatty tissues.
The scientific system used to name species is called this.
Binomial nomenclature
This insect undergoes complete metamorphosis, including a pupal stage.
Butterfly or moth
What is one reason mammals typically invest more energy in raising their young than reptiles do?
because mammals have fewer offspring and rely more on parental care to increase survival
Perhaps the simplest example of an innate behavior, this term refers to an involuntary and rapid response to a stimulus, or cue.
Reflex action
True or false: Less time separates the existence of humans and the Tyrannosaurus rex than the T-rex and the Stegosaurus.
True