Organisms that can grow without oxygen are called ______.
a. anoxyic
b. phototrophs
c. anaerobes
d. cyanobacteria
c. anaerobes
Organisms that can grow without oxygen are called anaerobes and were the only organisms that could survive in Earth’s early atmosphere.
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When Mendel crossed yellow-seeded and green-seeded pea plants, all the offspring were yellow seeded. When he took these F1 yellow-seeded plants and crossed them to green-seeded plants, what genotypic ratio was expected?
A) 1:2:1 B) 3:1 C) 9:3:3:1 D) 1:1 E) 1:1:1:1
Most actinoplanetes are found in marine habitats.
Answer the following statement true (T) or false (F)
An obligate anaerobe is an organism that:
A. is poisoned by oxygen B. requires oxygen C. can use oxygen but can get along without it D. does not use oxygen but is not poisoned by it E. produces oxygen
How do somatic neurons and autonomic neurons differ? (Check all that apply.)A) Somatic neurons innervate the body surface, while autonomic neurons innervate internal structures.B) Somatic neurons control skeletal muscle, while autonomic neurons control smooth and cardiac muscle.C) Somatic neurons control exocrine glands, while autonomic neurons do not.D) Somatic neurons control their effectors directly, while autonomic neurons use a series of neurons.E) Somatic neurons are always excitatory, while autonomic neurons may be either excitatory or inhibitory.
What will be an ideal response?