Today we are seeing an increased rate of environmental change which must have an effect on evolution as a whole.     True     False

Which of these is NOT an assumption made by HWE? Group of answer choices Mating is random No adaptation Infinitely large population No natural selection No mutation

Arrange the following mechanisms associated with evolution from most general (i.e. most inclusive) to most specific (i.e. least inclusive): 1 natural selection 2. microevolution 3. intrasexual selection 4. evolution 5. sexual selection     Multiple choice 4,2,1,3,5 4,1,2,3,5 1,2,4,5,3 4,2,1,5,3 1,4,2,5,3

Origins of Modern Humans Current data suggest that modern humans evolved from archaic humans primarily in East Africa. A 195,000 year old fossil from the Omo 1 site in Ethiopia shows the beginnings of the skull changes that we associate with modern people, including a rounded skull case and possibly a projecting chin. A 160,000 year old skull from the Herto site in the Middle Awash area of Ethiopia also seems to be at the early stages of this transition. It had the rounded skull case but retained the large brow ridges of archaic humans. Somewhat more advanced transitional forms have been found at Laetoli in Tanzania dating to about 120,000 years ago. By 115,000 years ago, early modern humans had expanded their range to South Africa and into Southwest Asia (Israel) shortly after 100,000 years ago. There is no reliable evidence of modern humans elsewhere in the Old World until 60,000-40,000 years ago, during a short temperate period in the midst of the last ice age.

all mechanisms of evolution are random

What is the role of variation in evolution If heterozygosity is reduced what happens to the potential for evolution? The phenotype and genotype of a population is due to a mosaic of random and directed processes some of these have to do with history.some are related to adaptation etc. As completely as possible,discuss the role of chance and direction in evolution and in determining the phenotype of a population

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.

Which of the following is the hypothesis that individuals who possess favorable traits are more likely to survive and reproduce than those who possess less favorable traits?     genetic drift     gene flow     mutation     natural selection

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.