Lesson 1: Physical Structures of Living Things
Holes on the surface of a plant leaf through which gases pass
a characteristic that increases an organism's ability to survive and reproduce in its enviornment
adaptation
name the two types of adaptations in animals
behavioral and physical
this is the process of an animal changing form during their life cycle
metamorphosis
support
Air holes on the skin of an insects boday
spiracles
a random change in a gene
mutation
this describes animals that no longer have a species alive
extinct
1. egg
2. tadpole
3. legs/tail
4. gills-->lungs
5. adult
These are the five stages of __________ metamorphosis.
amphibian
a flower is a plants structure for:
reproduction
A hard skeleton on the outside of her body
exoskeleton
true or false: adaptations happen quickly
false
this is when animals are born knowing how to do something rather than learning it from their parents
instinct
Name the four stages of complete metamorphosis
egg, larva, pupa, adult
blood vessels in humans and tissues in plants have the same function. they are both structures for:
circulation
Plants that have a circulatory system are called _______ plants
vascular
the predictable order of changes in communities after a change occurs
succession
migration and hibernation are types of this behavioral adaptation: ________ changes
seasonal
Name the three stages of incomplete metamorphosis
egg, nymph, adult
lungs, spiracles, and gills are structures for:
respiration
What does succession always follow?
change
this helps species develop adaptations to survive in their natural environment, favoring useful mutations and reducing harmful ones (2 words)
natural selection
useful changes in the body parts of an animal are called __________, or physical, adaptations
structural
this is the process by which an animal sheds its outer covering
molt
Name the three types of structures in plants and animals: structures for...
1. support
2. respiration/circulation
3. reproduction