In red-winged blackbirds, females tend to choose males with the most desirable territories and males compete with each other for territories.True or false: Redwing blackbirds demonstrate both intersexual selection and intrasexual selection.
Answer the following statement true (T) or false (F)
True
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In Thomas Hunt Morgan's experiments, the ratio of red-eyed flies to white-eyed flies appeared to follow a simple Mendelian pattern of inheritance. What observation(s) did he make that led to his conclusion that the white-eyed trait was actually not a simple Mendelian trait?
A. He was able to correlate the expression of white eyes to the inheritance of an X chromosome. B. He saw that only males had white eyes. C. He observed that the white-eyed trait was recessive. D. He was able to correlate the expression of white eyes to the inheritance of a Y chromosome because only F2 males had white eyes and the trait is recessive. E. He was able to correlate the expression of white eyes to the inheritance of an X chromosome because only F2 males had white eyes and the trait is recessive.
Which group of receptors is most important to help a diver maintain an upright position while
exploring a dark passageway in an underwater shipwreck? a. proprioceptors b. nociceptors c. chemoreceptors d. mechanoreceptors e. electroreceptors
population
What will be an ideal response?
Bacteria can synthesize unsaturated fatty acids only under anaerobic conditions.
Answer the following statement true (T) or false (F)