Changes in the DNA sequence that affect the expression of genetic information are called A) infiltrations B) mutations C) replications D) transformations

Which of the following characteristics refers to a savannah biome, but not to a temperate prairie biome? tropical or subtropical location herds of grazing animals primary plant life is thick grasses

What is the connection between the different structures ferns use to reproduce? A. The fertilize egg produces spores. B. The eggs are fertilized by the spores. C. The spores grow into new individuals by asexual reproduction. D.

Which of these is true of bryophytes? A. the gametophyte is not free living B. the haploid form is dominant C. the sporophyte is free living D. the sporophyte is dominant

Darwin observed an orchid flower with petals arranged in very long, thin tubes, rather than broad and flat, as we might see in other common flowers. What is the advantage to the orchid having an 11-inch-long nectar tube arrangement of the petals? A.

Which of the following is not a difference between the autonomic nervous system and the somatic nervous system? a. The number and types of neurotransmitters. b. The presence of ganglia. c. The number of motor neurons. d.

Heterogeneous mixture is one that is not Uniform throughout Easily mixed together Made of two or more liquids Edible by humans

What exhibits gill slits at some stage of its development?

Domain: Kingdom: • Eukaryote • Autotroph • Simple organization

How is isotope and nucleus related

What happens to a food chain when an organism is removed