Evolution, Biodiversity and Population Ecology  How Natural selection shapes organisms? What does Population ecology study? Which factors limit population growth?

select all assumptions that are true about a population that is in hardy weinbirg equilibrium - random mating  - small population  -mutation rate is zero  - gene flow is occurring  -no natural selection

Voles of two different colors, brown and gray, live on the same island. Hawks find these voles to be their primary food source. The voles are distributed through grassy areas in the north of the island and across lava flows in the south part. Which of the following is predicted by natural selection? Hawks find the voles by movement so it won't matter. A vole population that starts as a random mixture will never adapt to the environment. Brown voles are good at hiding in the grass; gray voles are excellent at climbing over lava flows. Consequently, the vole distribution will reflect the ability of hawks to identify each of them in its natural environment. If they stay as a mixed population, they will remain mixed because the two varieties will not interbreed with each other. The hawk population will be skewed toward the north side of the island

How does an understanding of evolution enhance our ability to conserve endangered species? Think back to all of the topics we discussed this semester and how they might apply to species conservation.

46. Natural selection operates through   differential resource use and differential status.   differential survival and differential reproduction.   differential survivorship and differential mortality.   differential reproduction and differential fertility.   differential resource use and differential reproduction.

A farmer wants to make a better corn plant that produces more and bigger kernels. In the chart, information is provided on two ways organisms can change over time. Natural Selection Selective Breeding Humans are not involved in the evolution process Human intervention is involved More generations are involved in natural selection, so it is a slower process Selective breeding is a faster process Survival of the fittest increases species' chance for survival Adaptations may not necessarily improve survival Mutations that result in natural selection occur randomly The desirable charactenstics are artificially chosen What is the best way for the farmer to improve his crop and why? Use evidence from the table to support your reasoning. Please write in complete sentences.

ch N S QUESTION 1 Standing upright helped our ancestors scan across savannas for potential predators. This is an example of what? 01. Niche separation O2. Superposition 3. A selective pressure for bipedalism O4. Original verticality QUESTION 2 Which anatomy parts were impacted by bipedalism? O 1. Spine 02 Fomur Sav Click Save and Submit to save and submit. Click Save All Answers to save all answers. 69°F Sur CH ADI fo fe 4+ f6 40 # 3 E D 14 $ IOI 4 fs % 5 A +- & 7 R T Y G F H 8 U O f10 ► 11 f O J K

In each experiment, what was the variable that differed??

In which population is evolution by natural selection most clearly demonstrated? Group of answer choices A virus sweeps through a population and makes everyone ill.  A virus sweeps through a population and kills 10% of infants. It is not clear why some die and some don't. A virus sweeps through a population and kills 20% of the population. It is not clear why some die and some don't. A virus sweeps through a population and permanently sterilizes the 10% of the population that has allele hx25c.

Which of the following are accurate descriptions of natural selection? Select all that apply. •It selects for traits that increased the complexity of the organism . ���It creates genetic variation. •It creates physical variation. •It selects for traits that helps organisms reproduce most successfully.