The physical appearance and physiology of an organism, resulting from interactions of its genetic makeup and its environment, is its
(a) phenotype.
(b) hybrid vigor.
(c) dominance.
(d) genotype.
(a) phenotype.
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When we say that an organism is haploid, we mean that _____.
A. its cells each have two sets of chromosomes B. its cells each have one chromosome C. its cells each have one set of chromosomes D. Its cells have one half of a chromosome
Answer the following statements true (T) or false (F)
1. Rods and cones, like most sensory receptors, depolarize open receiving a stimulus. 2. Perception of salty tastes occurs at the level of the taste bud. 3. Death of hair cells resulting from repeated exposure to loud noises is thought to be caused by metabolic "exhaustion" of these cells from continuous activation. 4. The most common defect in color vision, termed red-green color blindness, results from a faulty opsin gene. 5. Compound eyes in invertebrate animals are composed of many smaller ommatidia.
Distinguish between the central and peripheral nervous systems
What will be an ideal response?
Which of the following applies to the deepest zone of a large lake?
a. effective recycling of minerals b. anaerobic conditions c. a mineral-poor zone d. plentiful light penetration e. numerous organisms