cell organelle function
cell chemistry
cell cycle
genectics
Evolution
100
what is a thin flexible barrier around the cell
cell membrane
100
What is a compound that produces hydroxide ions in solution
base
100
what are the four phases of mitosis
prophase metaphase anaphase and telophase
100
the gene combinations that might result from a genectic cross can be determined by drawing a diagram known as ?
punnet square
100
only certain indivuals of a population produce new indivuals
natural selection
200
what cell organelle provides support and protection for the cell
cell wall
200
what solution contains higher concentration of H ions than pure water and have ph values below 7
acidic solution
200
What is a fan like microtuble structure that helps to seperate the chromosomes
spindle
200
cases in which one allele is not completly dominant over another is called?
incomplete dominance
200
Which scientist was the first to recongnize that living things have changed over time and that all species were decended from other species
Jean-Baptiste Lamarck
300
What is the difference between an animal cell and plant cell
animal cells do not have a cell wall or choraplasts to make there own food but plant cells do.
300
What do chemists use to indicate the concentration of H ions in solution
pH scale
300
What is the first and longest phase of mitosis
prophase
300
both alleles contribute to the phenotype of the organism
codominace
300
What scientist proposed that war, famine, and disease limited the growth of human population.
Thomas Malthus
400
What organelle controls most cell processes and contains the hereditary information of DNA
nucleus
400
what compounds make up carbohydrates
carbon, hydrogen,and oxygen atoms
400
What is the "in-between" period of growth in mitosis
interphase
400
What is organisims that have two different alleles for the same trait
heterozygous
400
What scientist proposes that earth is shaped by geological forces that took place over extremly long periods of time
James Hutton
500
how is the cytoskeleton helpful to the cell
it contains protein filaments that helps the cell maintain the cells shape
500
why are water molecules polar?
because there is an uneven distrubution of electrons between the oxygen and hydrogen atoms
500
how many chromosomes does a human body contain
46 chromosomes
500
What did gregor mendel experiment with?
pea plants
500
who concluded that species change over time
Charles Darwin
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