A gemma is a sexual reproductive structure produced by certain liverworts
____________________ Indicate whether the statement is true or false.
F, asexual
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Old man's beard (Usnea trichodea) and yellow Evernia lichens are sensitive to elevated levels of
a. sulfur dioxide (SO2). b. nitrogen oxides. c. nitrate. d. sunlight. e. fluoride salts.
Organisms that reproduce sexually have ________ as sex cells that carry the genetic information from each parent.
A. diploid gametes B. diploid morulas C. diploid zygotes D. haploid gametes E. haploid zygotes
Dipeptidase is an enzyme found in your small intestine that helps break polypeptides down. What would its most likely products be?
A) amino acids B) proteins C) triglycerides D) oligosaccharides
In a lichen, the fungal partner ________.
A. provides a substratum within which the alga grows B. protects the alga from excess light intensities C. provides water and minerals to the alga D. All of the choices are correct.