Why would you argue that liverworts should be considered the “first land plants” versus hornworts and
vice versa?
What will be an ideal response?
Liverworts do not have stomata, while hornworts and all other plants do. Liverworts also lack three
introns that occur in liverworts and all other plants. On the other hand, many hornworts have a cell
feature that is common in green algae, but not found in any other plant group. Many hornworts have a
large chloroplast in each cell that contains protein bodies called pryenoids.
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Which one of the following parts of the brain regulates heart activity?
A) cerebrum B) cerebellum C) thalamus D) midbrain E) medulla oblongata
During an infection, white blood cells travel to the infected site and phagocytize the pathogens. After phagocytosis,
primary lysosomes fuse with the phagocytic vesicle to form a larger vesicle called a secondary lysosome. The purpose for this process is to: a. Both B and D. b. degrade the bacteria and export it from the cell. c. wrap the pathogen in additional membrane, rendering them harmless. d. mix the pathogens with strong hydrolytic enzymes and destroy them. e. coat the bacteria in lipids derived from the Golgi complex, which cover and smother them.
The term clade most closely refers to:
a. a class. b. the binomial system of classification. c. a mechanism of horizontal gene transfer. d. a subspecies of organisms does not include a subgenus. e. a group of organisms that share common characteristics inherited from a common ancestor.
Which of the following is the most likely to be secreted into the renal tubule for excretion?
A) Water B) Excess Na+ C) Glucose D) Amino acids E) Vitamins