9 Characterisitcs of life
made of cells, adapt to changes, develop, uses energy, moves,reproduces
all the chemical reactions within an organism
to build or make something
An organism's regulation of its internal environment to maintain conditions suitable for survival.
increase in size
The group with the normal or natural conditions. You already know the results in this group.
*THE TEST GROUP*. It has all the same conditions of the control group except for the 1 thing you test.
an explanation of a natural phenomenon that is supported by scientific evidence. A hypothesis that has withstood repeated testing over a period of time.
facts about nature that are known to be true.
An explanation for a question or a problem that can formally be tested. An educated guess.
using as many senses to gather information about a particular situation. EX: Women is kneeling.
made from observations and data collected. Inferences will be used to form a conclusion. EX: Women is using electricity.
living factors in the environment
non-living factors in the environment
Highest level of biological organization made up of all the ecosystems on earth.
3 levels of biosphere
Consist of communities of organism and the abiotic factors that affect them.
trap energy from the sun to make their own food through photosynthesis.
organisms that cannot make their own food, they eat the producers.
cannot make their own food.some eat for energy and nutrients.
are organisms that break down the remains of dead or decaying plants and animals and return them to the soil. Decomposers absorb nutrients from organisms.
both species benefit in this (++)
one partner benefits and the other one stays to same. (+0)
Parasites benefit but causes harm to the host (+-)
very low animals left in species. Could become extinct.
no more animals left in the species
matter is composed of
particles of atoms
low energy, slow speed, packed tight
medium energy, medium speed, looser packed
most energy, fast speed, packed very loose.
cannot be broken down
composed of two or more separate elements; a mixture.
solid - liquid
liquid - gas
gas - liquid
liquid - solid
solid - gas
has carbon, hydrogn and oxygen
all living things are made of cells. cells are the basic unit of sturcture. all cells are produced from other cells.
stores food water and waste
organelle that contains chlorophyll ONLY IN PLANT CELL
protects the plant cell ONLY IN PLANT CELLS
where all the cells activities take place
controls all the cells activities
protects the cell, controls what goes in and out of cell,
Movement of a fluid from an area of higher concentration to an area of lower concentration.
transport of water
where most fossils are found
changes in an organisms DNA adaptations are result of
any variation that makes an organism better suited to its environment
series of changes that occur within an entire species over a period of time
keeping traits that parents developed during their lives. REJECTED! EX: mom dies hair blue baby will have blue hair.
humans choose organisms with the best traits and breed them to get offspring with best traits from both.
4 Parts of Darwins theory
1.organisms producing more offspring than can survive
2.variations are found amoung individuals of a species
3.some variations enable members of population to survive and reproduce better than others
4. overtime offspring of individuals with helpful variations make up more and more pop.
Get nutrients by eating dead or decaying animals