Biology, 19.11.2019 23:31, nickname278
Male peacocks have tail feathers that make up 60% of their body length. during the mating season they fan their tails and shake these feathers in front of females. females evaluate the tail-shaking behavior as part of selecting their mate. which of the behaviors below is most likely to have been the original behavior that, through natural selection, resulted in this mate choice behavior of tail shaking?
a. flight
b. head movement to make eye contact
c. sound production with the larynx
d. involuntary muscle contraction like shivering
e. grooming feathers with the beak
Answers: 3
Biology, 21.06.2019 23:00, carlie4charlie
Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?
Answers: 1
Biology, 22.06.2019 02:30, taythestargazer71
Did you know that a blue wales tongue weighs more than an elephant?
Answers: 2
Biology, 22.06.2019 10:00, bobbyhsu3751
Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area
Answers: 1
Male peacocks have tail feathers that make up 60% of their body length. during the mating season the...
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