Tag Archive | "selection"

What Are Selection Effects And Complementarity?


What are some examples?

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Simple Multi-choice Question About Natural Selection Vs Evolution?


I have an exam tomorrow, and i’m reviewing practice exams. Here are the questions I am stuck on:
Evolution vs Natural Selection:
a) creates higher forms
b) is goal-directed
c) is non-directed
d) leads to increased structural complexity
Which of the following is not an example of niche construction:
a) human skin adapting to UV light
b) humans domesticating animals
c) humans adopting agriculture in west africa
d) earthworms modifying soil
What is science?
a) a belief system
b) a system of expert validation
c) a body of truth
d) a methodology

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Biology..please..help?


1. Hawaiian honeycreepers are a group of birds with similar body shape and size. However, they vary greatly in color and beak shape. Each species occupies its own niche and is adapted to the foods available in its niche. The evolution from a common ancestor to a variety of species is an example of _____.
divergent evolution
cross-pollination
vegetative propagation
convergent evolution
2. _____ selection favors one extreme form of a trait in a population.
Directional
Stabilizing
Disruptive
Natural
3. Which answer BEST shows an animal’s adaptation to the tropical rain forest?
camouflage in a tree frog
the long neck of a giraffe
an elephant’s long trunk
migration of birds in winter
4. Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be observed. These features are an example of _____.
artificial selection
homologous structures
vestigial structures
comparative embryology
5. Which of the following is not a factor that causes changes in the allelic frequencies of individuals in a population?
stabilizing selection
directional selection
random selection
disruptive selection

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Unrelated Species Filling Similar Niches Sometimes Resemble One Another Because Of A Process Called?


a. convergent evolution
b. competition
c. mutation
d. co- evolution
e. natural selection
i have searched and searched for this answer and still nothing please help.((:

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Please Help With Biology?!?


1.
Hawaiian honeycreepers are a group of birds with similar body shape and size. However, they vary greatly in color and beak shape. Each species occupies its own niche and is adapted to the foods available in its niche. The evolution from a common ancestor to a variety of species is an example of _____.
(1 point)
divergent evolution
cross-pollination
vegetative propagation
convergent evolution
2.
_____ selection favors one extreme form of a trait in a population.
(1 point)
Directional
Stabilizing
Disruptive
Natural
3.
Which answer BEST shows an animal’s adaptation to the tropical rain forest?
(1 point)
camouflage in a tree frog
the long neck of a giraffe
an elephant’s long trunk
migration of birds in winter
4.
Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be observed. These features are an example of _____.
(1 point)
artificial selection
homologous structures
vestigial structures
comparative embryology
5.
Which of the following is not a factor that causes changes in the allelic frequencies of individuals in a population?
(1 point)
stabilizing selection
directional selection
random selection
disruptive selection

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Music Playlist Suggestions (for Sex)?


yea its for sex teehee.. get over it. im lookin for anyone who can list some songs thatd be a good selection. something on the lines of sexual eruption by snoop and speechless by beyonce, anything that sounds like speechless is perfect but i dont want any creepy old *** music, keep it relatively new unless it completely fits this niche.
im assuming there are gunna be **** heads that write some stupid crap so if it says answered already and the answers are retarded…help me out i appreciate it

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