Give an example of exaptation in humans? What will be an ideal response?
Our opposable thumbs are an example of exaptation. The opposable thumb evolved as a mechanism to
grasp branches and support the arboreal existence of our ancestors. The same thumb and finger
arrangement made possible the use and production of tools in our more recent ancestors.
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Most synapses found so far in the mammalian central nervous system (CNS) are classified as _____
A) chemical rather than electrical B) electrical rather than chemical C) magnetic rather than chemical D) magnetic rather than electrical
________ is a rare, intramolecular posttranslational process that allows for self-catalytic removal of specific amino acid sequences.
Fill in the blank(s) with the appropriate word(s).
The ____ feeds on penguins and other seals
a. Guadalupe fur seal b. elephant seal c. Steller's sea lion d. leopard seal e. harbor seal
Which type of plant hormone can be produced by boiling DNA?
a. salicylic acid b. auxins c. cytokinins d. abscisic acid e. jasmonates