The organic material found in topsoil is called (humus/peat/compost)
What will be an ideal response?
humus
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Which of the following antibiotics is produced by bacteria in the genus Streptomycetes?
A. Chloramphenicol B. Tetracycline C. Vancomycin D. All of the choices are correct.
A molecular analysis of plasma or nuclear membranes would reveal the presence of _____
a. cellulose and chitin b. suberin and cutin c. phospholipids and proteins d. microtubules and microfilaments e. phospholipids and nucleic acids
Which characteristic is NOT associated with red muscle fibers?
a. myoglobin b. fast fibers c. many blood vessels d. make up postural muscles e. large amounts of oxygen
The fruit produced by angiosperms is an evolutionary adaptation that most often
A. nourishes the seeds within the fruit on ripening B. aids in seed dispersal C. attracts pollinators D. inhibits seed germination until favorable environmental conditions occur E. provides an energy source for the plant egg cell prior to fertilization