Exam 1
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• What are the 6 characteristics of living organisms?
• Have organized Cells • Acquire Energy + materials • Grow and develop • Reproduce • Respond to stimuli • Adapt to environment
a collection of the same species that can interbreed
Population
a collection of different species that live in the same area
community
The process of cells taking on different shape/form and function
Differentiation
What are the 6 unique characteristics of plants?
• Multicellular Eukaryotes • Cell Walls made of cellulose • chloroplast used for photosynthesis • Store food + energy as starch • Multicellular embryos that develop within female sex organs • Life cycle alternation between haploid (sex organ) and diploid generation)
The four major plant groups
nonvascular, vascular seedless plants, vascular seed plants gymnosperms, angiosperms
Liverwort, hornwort, mosses. No vascular tissue. No true leaves, stems, or roots. Relies on water for sexual reproduction. Uses spores for dispersal.
Nonvascular
Lycophytes, ferns and their relatives. Vascular tissues, have true stems and leaves, rely on water for sexual reproduction, use spores for dispersal
Vascular seedless plant
Cyads, Gingko, gnetophytes, Conifers. Vascular tissues, have true stems and leaves, no need for water to sexually reproduce, use naked seeds for dispersal, do not have flowers.
Vascular seeded plants (gymnosperms)
Monocots, Eudicots. Have vascular tissues, true leaves, stems, and roots, no water needed for sexual reproduction, enclosed seeds for dispersal, has flowers
Angiosperms
The thing you change within an experiment
Independant variable
The thing you are measuring within an experiment
Dependent variable
SI Unit for Mass
kg
SI Unit for Length
Meter
SI Unit for Temperature
K
4 Major effects of plant domestication
• More and larger fruits/grains • Thicker stalks • Seeds easily separate from chaff • Seeds stay on parent plant
What bacteria do legumes have a symbiotic relationship with
Rhizobium
Second highest protein producer
Peanuts
Legumes- pods that split open (Beans, peas, lentils)
Dehiscent
Legumes- pods that dont split open (peanuts)
Indehiscent
Which wheat variety is the most important type grown today?
Bread wheat
Which wheat variety is the second most important type grown today?
Durium wheat
What percentage of corn is grown for animal feed?
40
What percentage of corn is grown for biofuel?
33