15. What is the ultimate source of all variation in and among populations? Genetic mutations that result in viable offspring Factors in the environment that may affect development Diverse habitats O O O Natural selection
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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
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- Moth Graph During the fourth generation, 200 dark moths were captured from clean forest B. About how many total moths were recaptured from polluted forest A during the fourth generation? Number of dark moths found in different forests 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 В 200 100 EN E O G 4) search Number of dark moths captured 近e-SC5 x P Parchment Exchange-Leader X + -re.learn.edgenuity.com/player/ Science - SC5181 A ก 11 4 O Habitat fragmentation O Habitat restoration O Habitat destruction. 14 15 Unmathis question C The Venus flytrap is a carnivorous plant that eats insects. Suppose the county where these are located decides to do wide scale spraying to kill various types of swarming bugs. This causes the number of Venus flytraps to decline. What type of habitat problem is the Venus flytrap experiencing? O Habitat degradation M Oll A PART DELL Save and Exit Next < ☆ English Sign out Submit * Oct 27 Kinley Heath 19 X 10:21 0. PREDATION has an After being stung by too many scorpions, you decide to shift your research focus to studying a predatory spider and its fly prey. After much careful work you find that the prey intrinsic rate of growth of 1-0.1, and the predator experiences a death rate of dp=0.5 in the absence of prey. Spiders prey on the flies at a rate of p=0.001 and convert their prey in to offspring at a rate of c=0.2. In the space below, plot the state space isoclines for each species. Be sure to label all axes and intercepts. this plot and the appropriate dN/dt equations, what are the short term dynamics of ton and prey populations with the following initial population sires? (e. calculate what Using ill be in the next time period) edaion
- Solar farms are often installed in areas in the midwestern United States previously used as cropland. Native and non-native plants often grow in these fields occupied by the solar panels. (g) Describe how the shift from agricultural crops to native plants may impact the biodiversity of insect populations.destion 6 Which statement describes the most likely outcome for the owl and toad populations in an environment in which skyglow and glare become factors? A. Skyglow causes the owl population to experience a decrease in hunting success; glare causes the toad population to experience a decrease in mating success. B Skyglow causes the owl population to experience a decrease in hunting success: glare causes the toad population to experience an increase in mating success. C. Skyglow causes the owl population to experience an increase in hunting success; glare causes the toad population to experience an increase in mating success. D. Skyglow causes the owl population to experience an increase in hunting success; glare causes the toad population to experience a decrease in mating success.Scenario: You have been hired by an electric utility company whose stockholders are really pressing the company on ESG matters (environmental, social, governance). The company owns thousands of acres of land surrounding one of its powerplants and leases much of this land to local farmers for agriculture. However, local environmental groups have been stating concerns in the local newspaper about the loss of insect biodiversity on in meadows surrounding the agricultural activities. You have been tasked by the company to develop an experiment to investigate whether a loss of insect biodiversity is occurring in these meadows because of these agricultural activities. Action Steps: Propose a coherent and testable hypothesis that captures some aspect of this concern. Identify the independent and dependent variables in this experiment. Identify any possible confounding variables that might influence your experiment. Identify appropriate controls for your experiment. Demonstrate how you…
- One of the major issues in reducing the production of greenhouse gases is the ability to produce and use alternative fuels such as hydrogen, methane or ethanol. Compare and contrast these options with special regard for how they may be biologically produced.(25) | Microsoft T: 6X E EverFi Educatic -er| Portal henrico.schoology.com Q2 End of 9 Weeks Test What is one negative aspect of utilizing wind turbines on the peak of mountains? O They can interfere with the migratory routes of birds O The energy produced is a toxic waste that can not be easily destroyed O The cost of maintaining a wind turbine outweighs the energy that will be produced O They pollute the air with atmospheric emissions e Type here to searchBased on the text for mosquitoes eating: 1. Identify abiotic factors that support the survival and reproduction of the mosquitoes and explain why the mosquitoes needs this factors. 2. Identify biotic factors that support the survival and reproduction of the mosquitoes and explain why the mosquitoes needs this factors. 3. Predict what factors in the environment can be altered to decrease the survival and reproduction of mosquitoes and why?
- Due to its ability to camouflage itself from predators, the White Peppered Moth of England was once much more abundant than the Black Peppered Moth. As the Industrial Revolution hit, factories began to release black soot which coated everything, including tree bark. Because the moths’ habitat was now darker, the white moth became much more susceptible to predators. At the same time, the Black Peppered Moth was now more protected and began to increase in number.This story is an example of A. natural selection. B. extinction. C. endangered species. D. mutation.Activity 4. Make a Dichotomous Key. Make a Dichotomous Key for the animals illustrated below https://www.flickr.com/photos/queenslandstatearchives 137884088126 https:pixabay.com/vectors/biodiversity earthworm fertilizer-160380 https:Weommens.wikimedia.arg/aiki/File:CSIRO_Seienoeimage 2186 ARed ackSprderjpg https://en.wikipedia.org/wiki/Tamaraw %3D II IVIntroduction The Rock Pocket Mouse The rock pocket mouse, Chaetodipus intermedius, is a small, nocturnal animal found in the deserts of thesouthwestern United States. Most rock pocket mice have a sandy, light-colored coat that enables them to blendin with the light color of the desert rocks and sand on which they live. However, populations of primarily dark-colored rock pocket mice have been found living in areas where the ground is covered in a dark rock calledbasalt caused by geologic lava flows thousands of years ago. Scientists have collected data from a population ofprimarily dark-colored mice living in an area of basalt called the Pinacate lava flow in Arizona, as well as from anearby light-colored population. Researchers analyzed the data from these two populations in search of thegenetic mutation responsible for the dark coat color. Their analyses led to the discovery of a mutation in theMc1r gene that is involved in coat-color determination. The MC1R Gene Two pigments…