Science term 3 Flashcards
what is a ectotherm
animals that body temperature changes with the weather, these are reptiles amphibians fish
what is endotherm
animals that generate their own heat these are mammals and bird
what is prokaryotes
they have free floating DNA and are things like bacteria
what is a eukaryote
they have a true nucleus
what are the different eukaryotes categories
animals, protists, fungi, plants
what are the different animal categories
invertebrates and vertebrates
what’s another way to say vertebrate
chordates
what are the different vertebrates
reptiles, birds, amphibians, mammals fish
How do we classify different mammals
by there reproductive methods
what are the different reproductive methods of mammals
placental, monotremes, marsupials
what’s a ecosystem
All the living things in an area and the way they affect each other and the environment
what does abiotic mean
non-living factors in the environment
what does biotic mean
living factors in the environment
what does Interdependence
depending one each other for survival
what is a producer
they are plants and are at the bottom of the food chain
what are decomposers
they break down dead and decaying organisms and it becomes fertilizer for more plants
what is intraspecific
Competition between organisms of the same species
what is interspecific
Competition between different species
what is a structural adaption
a adaption of the organisms physical body e.g. sharp claws, powerful muscles camouflaged fur, long neck
what is a physiological adaption
an internal process or chemical reaction e.g. poison/venom, hibernation, colour-changing pigments, silk production, milk production
what is a behavioural adaption
how an organism acts or behaves e.g. stalking prey, mark territory, courtship dance, nocturnal, fighting for dominance, migration, close petals at night
name the 3 symbiotic relationships what they are
parasitism(-/+), commensalism(+/o) mutualism(+/+)
if there is more prey what happens to the predators
there is more predators and prey decreases
if the predator population is more than what happens to the prey
there is less prey
