Introduction-to-Biology 試験問題を無料オンラインアクセス

A student notes thatclub mossesform an outgroup, whileferns, gymnosperms, and flowering plantsform an ingroup on a plant cladogram (algal ancestor at the base). Whichbranching pointis the student considering?

• A.Seeds
• B.Leaves with branching veins
• C.Vascular tissue
• D.Embryo protection

(Use the exhibit "Simple Diffusion (No ATP)".) What process is depicted?

• A.Simple diffusion, which does not require energy
• B.Facilitated diffusion, which requires energy
• C.Active transport, which does not require energy
• D.Osmosis, which requires energy

A molecule doesnotdissolve in water and consists ofglycerol covalently bound to three fatty acid tails.
What is the primary function of this molecule?

• A.Genetic information storage
• B.Cell communication
• C.Catalysis of chemical reactions
• D.Energy storage

Using theTetrapod Cladogram (Node E)and standard vertebrate traits, whichtwo character statesare shared byboth Tiger and Gorilla?(Choose 2 answers)

• A.Three middle ear bones
• B.Fur
• C.Loss of tail
• D.Jaw

Ocean acidification dissolves calcium-based exoskeletons of purple sea urchins. Some individuals have a trait making their exterior more acid-resistant. If acidification increases, how is this population most likely to evolve?

• A.Acid-resistant exoskeletons become more common
• B.Less acid-resistant exoskeletons become more common
• C.Longer, more rigid spines become more common
• D.Shorter, more flexible spines become more common