an internal system of tube like structures through which water and good move inside the plant
What contributions did Carolus Linnaeus make to the field of taxonomy?
He came up with the naming and subgrouping system
Major characteristics used to classify organisms into kingdoms
If the organism is...unicellular or multicelluar...autotroph or heterotrpoh...prokaryote or eukaryote
How do bacteria survive without a nucleus?
because the genetic material in their cells isnt contained in the nucleus
How do bacteria become resistent to antibiotics?
because the white blood cells multiply overtime
Functions of the circulatory system
Transports oxegen, carbon dioxide, nutrients, wastes, hormones, and enzymes...regulates body temperature...clots blood to prevent fluid loss...and fights illness'
The pulmonary artery is different than all the others because...
it's the only one that carries deoxegenated blood
the pulmonary vein is different than all the other veins because...
it's the only one that carries oxegenated blood
Job of the Leaf
to capture the suns energy and carry out the food-making process of photosynthesis
3 main characteristics of plants
the science of sorting living things into groups based on similarities and differences
the preserved remains or traces of an organism that lives in the past
What can be learned from fossils?
about organisms that're extinct and about how and when a new organism evolved
Compare punctuated equilibria and gradualism
Gradualism states that evolution occurs slowly but steadily and that tiny changes gradually add up to major changes over a long period of time white punctuated equilibria states that species evolve during short periods of rapid change. There are also times of no change. Also, species evolve quicker when isolated (ex. continental drift.)
Petrified fossils-how they're formed
remains are buried in sediment and eventually turned to rock
a hollow space in sediment in the shape of an organism
Casts-how they're formed
when a mold is filled in with hardened minerals
Preserved Remains-how they're formed
when an organism is preserved in a substance such as ice, tar, or sap
What role did Darwin play on the Beagle?
He was the naturalist, and he had to learn as much as he could about the living things he saw on the voyage.
3 examples of nonvascular plants
Peat moss, liverworts, and hornworts
What contributions did Aristotle make to the field of taxonomy?
He classified organisms into 3 groups...land dwellers, sea dwellers, and air dwellers
the amount of energy needed to raise the temperature of one gram of water by one celcius degree
The process by which individuals that are better adapted to their environment are more likely to survive and reproduce then other members of the same species
4 factors that may contribute to Natural Selection