Who is responsible for building the first simple microscope?
Isaac Newton
The Royal Society of London
Antoni van Leeuwenhoek
Louis Pasteu
Antoni van Leeuwenhoek
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The bran of the seed contains primarily
a. lipopolysaccharides. b. proteins and vitamins. c. fiber and minerals. d. fructose. e. none of these.
A somatic cell from a corn plant normally contains 20 chromosomes. How many sister chromatids would that cell contain during G2 of the cell cycle?
A. 20 B. 10 C. 40 D. 0
Which is the correct sequence of increasing organization?
A) Atom, molecule, tissue, cell B) Organelle, tissue, cell, organ C) Organ, tissue, cell, molecule D) Molecule, cell, organelle, organ E) Cell, tissue, organ, organ system
In a species such as elephant seals, in which males are significantly larger than females, the most likely mating system is:
a. polyandry. b. promiscuity. c. monogamy. d. It is impossible to predict the mating system with only this information. e. polygyny.