Plants use day-length cues to make preparations for winter, such as increasing the size of roots and other storage organs
A. true
B. false
A
You might also like to view...
Archaeal promoters are most similar to those of ________.
A. eukaryotes B. viruses C. bacteria D. both viruses and bacteria
Fish in a marine environment must maintain a relatively constant ion concentration in their tissues and blood. How do the chloride channels in the gills aid fish in the removal of excess ions?
A. The chloride channels create a countercurrent system where ions are lost from the gills and water is absorbed to dilute other ions (NaCl). B. The chloride channels create a countercurrent system where water is lost from the gills and chloride ions are absorbed. C. The chloride channels actively move ions into the gills and water will follow though osmosis. D. The chloride channels actively remove ions from the gills and water will follow through osmosis.
Fertilization in mammals normally occurs in the
a. ovary. b. uterus. c. vagina. d. oviduct. e. follicle.
A testcross is a mating of an individual with an unknown genotype and an individual that Select one:
a. is homozygous dominant. b. is homozygous recessive. c. has a known genotype. d. is a wild-type. e. is heterozygous.