What is haplodiploidy, and how is it related to altruism in honeybees?
What will be an ideal response?
ANSWER: Drones (male bees) are haploid, while queen bees are diploid. Worker bees are either 50
percent or 100 percent related to each other, depending on whether they share the same
alleles from their mother. Nonreproducing workers help to pass alleles they share into the
next generation by caring for their siblings.
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Ionotropic receptors found at synapses are operated via _____
A) ligand-gated ion channels B) second-messenger-gated ion channels C) electrical synapses D) inhibitory, but not excitatory, synapses E) excitatory, but not inhibitory, synapses
By definition, a nerve is
a. a bundle of sensory, motor, or both types of nerve fibers outside the central nervous system. b. a single extension of a neuron. c. the same as a neuron but within the central nervous system. d. a collection of nerve cell bodies outside the central nervous system. e. a fiber more than ten inches in length.
Bacteria use the protein ________, which is structurally related to tubulin, to form a ring at the site where the two daughter cells will separate
Fill in the blank with correct word.
What are single-celled forms of fungi called?
a. Yeast b. Viruses c. Lymphocytes d. HIV