way long ago
traditional classification tended to take into account primarily
general similarities in appearance
mosses and their relatives are nonvascular plants called
bryophytes
What do plants need to survive?
water and minerals
gas exchange
movement of water and nutrients
sunlight
types of mammals
monotreme - lays eggs
marsupial - pouch
placental - internal development in placenta
What is an organism's niche?
place in the food chain
temperature it can survive in
role as predator or prey
how it reproduces
according to evolutionary classification, species within the same genus should
be more similar to each other than they are to other species
____________________ complete their life cycle in two years, whereas annuals complete their life cycle in one growing season
biennials
The late Triassic and Jurassic periods were so important to this group that the Mesozoic Era is often called the
what are saprobes?
feed on decaying matter
what is a limiting nutrient?
a single nutrient that is scarce or cycles very slowly that limits an ecosystem from thriving
the three domain system recognizes fundamental differences between two groups of
prokaryotes
The reproductive organ of an angiosperm is a ________________, which attracts animals with its vibrant colors.
flower
This group of reptiles has a hidden third eye, and is only found in islands off of New Zealand.
Tuatara
what are the types of symbiotic relationships?
commensalism: one benefits, one is unphased
parasitism: one lives on or inside another and harms it
What affects a population's size?
number of births, number of deaths, number of individuals entering or exiting the population
The domain that includes the kingdom Eubacteria
Bacteria
________________ fungi cause diseases in plants, animals, and sometimes humans by living directly on them or in them.
parasitic/pathogenic
characteristics of mammals
lungs, hair or fur, chambered heart, live birth, mammary glands to produce milk for young
____________________________ were the first vertebrates that were not dependent on water for reproduction.
reptiles
what is an endangered species?
A species whose population size is declining in a way that places it in danger of extinction
Animal-like protists are classified by their
movement
_________________ are small, often microscopic organisms floating, drifting, or weakly swimming in bodies of water.
plankton
the three parts of the mammalian brain we discussed
cerebrum - complicated behaviors
cerebellum - muscle movement
medulla oblongata - involuntary functions
group of animals that have moist skin and mucus glands
amphibians
The removal of one species from a food web causes a
trophic cascade