5 Written Questions
5 Matching Questions
- threatened species
- bilateral symmetry
- stop codon
- a the amount, or mass, or organic material in an ecosystem
- b as defined in the U.S. Endangered Species Act, a species that is likely to become endangered in the foreseeable future throughout all or a significant portion of its range
- c an arrangement of body parts such that an organism can be divided equally by a single cut passing longitudinally through it. A bilaterally symmetrical organism has a mirror-image right and left sides.
- d the ideas, customs, skills, rituals, and similar activities of a people or group that are passed along to succeeding generations
- e in mRNA, one of the three triplets (UAG, UAA, UGA) that signal gene translation to stop.
5 Multiple Choice Questions
- the middle layer of the three embryonic cell layers in gastrula; gives rise to muscles, cones, and the dermis of the skin, and most other organs in the adult.
- in molecular biology, a piece of DNA, usually a plasmid or a viral genome, that is used to move genes from one cell to another
- the long-term prosperity of human societies and the ecosystems that support them
- a type of prezygotic barrier between species; the species remain isolated because structural differences between them prevent fertilization
- in animal behavior, an inquiry that focuses on the environmental stimuli, if any, that trigger a particular behavioral act, as well as the genetic, physiological, and anatomical mechanisms underlying it.
5 True/False Questions
monophyletic → pertaining to a taxon derived from a single ancestral species that gave rise to no species in any other taxa
self-fertilization → a hard, external skeleton that protects an animal and provides points of attachment for muscles.
biodiversity crisis → the current rapid decline in the variety of life on Earth, largely due to the effects of human culture
horseshoe crab → a bottom-dwelling marine chelicerate, a member of the phylum Arthropoda.
r-selection → the concept that in certain populations, a high reproductive rate is the chief determinant of life history