Science 6-16

What is the definition of an animal

Feed on organic matter

What are the three criteria an animal has

Feeding on organic matter, Be able to move from one place to another, be made up of multople cells with organells and produce collagen

What is collagen

A protein that provides structure to cells and holds them together

What are the three requirements of a mammal

Have a spinal cord and brain, produce milk, have hair, and have three middle ear bones

What does the spinal cord do

Sends sensory information to the brain

What does viviparous mean

Give birth to live young

What 2 mammals are not viviparous

Platypus and Echidna

What do the bones in the ear hel with

Transmitting sound vibrations into messages for the brain

What does oviparous mean

They reproduce by laying eggs

What does ovoviviparous mean

They give birth to to offspring that are already developed and hatched internally

What reptiles come occasionally on land

Sea snakes and crocodiles

Example of a fully aquatic amphibian

axolotols

Example of a semi-terrestrial amphibian

frogs

How is the mudskipper special

They use modified gills to survive in muddy environments

What are arthropods

Insects and arachnids

What is the definition of an insect

Three body segments and six legs

What is the definition of an arachnid

Two body segments and 8 legs

Examples of an arachnid

Mites, ticks, scorpions

What are some characteristics of Antrhopods

No spinal cord, open circulatory system, hemolyphm for oxygen

What insects have social groups

Honeybees and ants

Examples of lonley insects

Grasshoppers and wasps

What supports the arthropod structure

Exoskeleton

What is the Goliath bird eater

A tarantula that will occasionally eat birds (mostly earthworms)

What percent of anial species are arthropods

80-85

Example of a plantlike animal

Sea Sponge

Example of an animal that looks like an insect but is not

Tardigrades

How do some sea slugs obtain energy

Photosynthesis

What is behavior

The way animals interact with other organisms, internal signals, and the physical environment

What is internal stimuli

Sensations that come from within an organisms’s own body

What is external stimuli

Anything outside the animal to which it can respond

What is the reason that animals interact with each other

animals get along better in groups

What is a disadvantage of the bright peacock feathers

it makes it easy for predators

What is ecology

Study of how living organisms interact with the environment to maximize their chances of survival and reproduction

What is an organism

study of single individual

What is a population

All organisms in the area from the same species

What is a community

Multiple different populations

What is an ecosystem

Multiple communities + plants

What is a biome

multiple ecosystems

what is the biosphere

all environments on earth

What is a keystone species

a species that is so vital to the ecoystsem, without it the ecosystem would collapse

What is taxonomy

concerned with classification of all organisms

what is the binomial name

the two part latin scientific name

What is the order of the taxnomoy from broadest to speific

domain, kingdom, phylum, class, order, family, genus, and species

What is a phlyogenic tree

a visual of evolutionary history between taxa based on features, behavior, genetics, and/or geographic locations

What is a divergence event

A point where two species can no longer bread because their genetic code is too different

When did the theoretical single celled organism that all animals share live

4.2 billion yrs

What is its name

Last Universal Common Ancestor (LUCA)

What do scientist believe to be the first multicellular animal

sponge or jellyfish

What was the first animal to transition to land and when

P.newmani, 420 million

What is the oldest known mammal and when did it live

Basioldon, 225 million

What percent of mammals survived mass extinction

7

What domain do all animals belong to

Eukarya

What kingdom to all animals belong to

Animalia

What phylum do animals with spinal cords belong to

Chordata