In what group of animals are monogamy and cooperative care of the young by two parents most common?
What will be an ideal response?
birds
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When plasmogamy occurs in two compatible mating types of fungi, a dikaryotic cell is formed in the hyphae. For some groups of fungi, only one or a few cells are dikaryotic
In other groups of fungi, a majority of the cells that make up the fungal hyphae are dikaryotic. What might be an advantage of having dikaryotic hyphae? A. Dikaryotic hyphae have more nuclei and there can be higher rates of transcription and translation and more digestive enzymes made by each cell. B. Dikaryotic hyphae are able to divide more rapidly than hyphae with only one nucleus. C. Karyogamy can occur in more than one cell and more fruiting bodes can be produced, increasing the number of spores produced through sexual recombination. D. Karyogamy can occur more rapidly when a dikaryotic hypha finds an alternate mating type.
The nucleus of an atom contains
a. neutrons and protons. b. neutrons and electrons. c. protons and electrons. d. protons only. e. neutrons only
The height at which green anoles and brown anoles perch in trees overlaps a bit. When brown anoles were introduced to islands inhabited by green anoles, the green anoles evolved a higher number of specialized toe scales in order to perch higher than they previously did when they were the sole species on the island. This is an example of:
A. Interference competition B. Ecological character displacement C. Ecological release D. Escape-and-radiate coevolution
Astronauts returning to Earth from an extended stay in space have to be extremely careful not to break a bone. It takes several weeks to restore normal bone strength. Which would be the best regimen to rebuild the lost bone tissue?
A) Stay inactive, avoiding exercise until the lost bone tissue is rebuilt. B) Start with walking and build up to jogging, with an extra regimen of light weight lifting in the gym. C) Hit the gym and get going with a few weeks of heavy weight lifting. D) Several weeks of swimming will rebuild all lost bone mass.