The majority of bacterial DNA is negatively super coiled
Indicate whether the statement is true or false
TRUE
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When a tissue has become sensitized from a maladaptive immune response toward a normally harmless substance, this is termed what?
a. infection b. immunocompromised c. hypersensitivity d. immunodeficiency
The earliest vascular plants on land had underground stems (rhizomes) but no roots. Water and mineral nutrients were most likely obtained by _____
A) diffusion through stomata B) absorption by mycorrhizae C) osmosis through the root hairs D) diffusion across the cuticle of the rhizome
Which is an incorrect match of taxonomic category and common name?
A. Actinopterygii/ray-finned fish B. Squamata/lizards and snakes C. theropods/crocodiles D. Dipnoi/lungfish E. Apoda/caecilians
Darwin was influenced by which concept attributable to Charles Lyell?
a. The geological history of Earth is a series of catastrophes. b. Acquired characteristics can be inherited. c. Natural selection operates on the tremendous variation found in nature. d. All life forms a part of a great Chain of Being. e. Gradual geologic forces formed the earth's current landscape over a long period of time.