low did doubling the rabbit population affect the grass, snakes, and hawks at first? low did halving the rabbit population affect the grass, snakes, and hawks at first?
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A: Hello, thank you for your question. Hope this answer helps you :)
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- Direction: Analyze the situation and tell what limiting factor is being described. Choose in the box below the type of limiting factors. Mortality Natality Emigration Immigration Situation Limiting Factor 1. Every year, there's an increase in the population of migratory birds in Candava. Pampanga. 2. The increase of the population of frogs during rainy days. 3. Russian population decline due to Covid-19 effect. 4. Decrease in the population of birds when they move to another place due to unfavorable weather conditions. 5. The population in the Philippines increases due to teenage pregnancy.Unit D: Assignment 8A Module 8: Population and Community Dynamics If 15 years ago, 34 of 88 zebra fish had the red colour, has microevolution occurred? Why or why not? 28. A. No. The allele frequency has remained the same. B. Yes. The allele frequency has changed. C. No. The allele frequency has changed. D. Yes. The allele frequency has remained the same. 29 There are particular factors that cause the diversity in a gene pool to change. Hoccribed3. Explain why it is common practice to also collect information about the physical environment when sampling populations: Quadrat 5 Quadrat 4 Quadrat 3 Quadrat 2 Quadrat 1 0 QUADRAT Height/m Light / arbitrary units Humidity / percent Temperature / °C 1 0.4 40 99 2 0.8 56 88 3 1.2 80 50 Percentage cover 68 72 76 14.3 14.2 Kichen 12.1 12.2 13 4 5 1.6 2.0 72 78 intain: 100 Red stem moss Fern moss Snake moss Star moss Eye brow moss Broad leaved star moss Tree moss Lichens (various species) 4. The figure (above) shows the changes in vegetation cover along a 2 m vertical transect up the trunk of an oak tree (Quercus). Changes in the physical factors light, humidity, and temperature along the same transect were also recorded. From what you know about the ecology of mosses and lichens, account for the observed vegetation distribution:
- 2. What is the generation time, net reproductive rate, and intrinsic rate of increase? 3. Plot the change in population size over time (for 10 years) starting with 10 individuals. 4. What would the female population size be in 25 years? 5. If hares were an endangered species, what other kinds of information would you need to gather to support your predictions made in 3 and 4?1. Base on the graph below, why might the sex ratio of bird species in the figure change from as they grow from juveniles to adults? 0.5 0.5 40 50 30 40 30 20 20 10 10 0.30 0.36 0.42 0.48 0.54 0.60 Sex ratio 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Sex ratio (b) A) Nesting females are vulnerable to predatory attack. B) Males that are unable to mate die quickly. C) Females are less able to feed effectively as juveniles. D) More females are required to sustain the population. Frequency (a) Frequency IAPPLY YOUR KNOWLEDGE Human populations are subiect to the same population control factors in the environment that mipact natural populations. For example, during the 14th century, the bubonic plague killed approximately one- third of the human population. A. Is the bubonic plague an example of a dènsity-dependent or density-independent factor? Explain. B. Two-thirds of the population survived the bubonic plague, even though many of the survivors were most likely bitten by disease-carrying fleas. In terms of evolution, explain how it was possible to be a survivor. C. Discuss two ways that humans have increased the carrying capacity of their population.
- ation moths PHASE 4: Clean forest Complete the following steps: Select initial allele frequencies 6 SUBMIT Click Next generation to wait a year for first generation of moths Click Capture moths to monitor population numbers Calculate phenotype frequencies in 5th generation. Record in Lab Data Calculate allele frequencies in 5th generation. Record in Lab Data Calculate genotype frequencies and number of moths in 5th generation. Record in Lab Data1. If there are 500 eagles in a population in year 1, and 550 eagles in the population in year 2, what is 2? a. What equation will you use? (Hint: the goal is to caleulate 2) b. What is 2? ANSWERS:Which of the following is best at showing the life expectancy of an individual within a population? quadrat mark and recapture survivorship curve life table
- QUESTION 7 You are working on an undergraduate project, studying an insect species. A recent study showed that the pigmentation pattern used for camouflage is made by an enzyme K. However, it has been shown that, when compared to the Kk individuals, the KK homozygotes would have a higher chance of dying from pigment overdose before growing up, while the kk individuals can easily fall to predation before becoming adults. In fact, when compared to the Kk individuals, the estimated selection coefficients for KK and kk are 0.25 and 0.5, respectively. You are interested in what would happen to these alleles. At present, you have conducted a population survey and have 1000 larvae in your collection. Among them, 360 are KK, 480 Kk and 160 kk. How many larvae would survive to adulthood? O 170 O 417 583 750 830 (Following up on Question 7.) What would be the KK genotype frequency at the adult stage? O 0.090 O 0.270 O 0.325 O 0.360 O 0.529 QUESTION 8Please present an example of your own that demonstrates the founder effect. Your example must include the following: 1. The organisms you use must be birds 2. You must include the size of the population(s) 3. You must include the effect on alleles (increase or decrease) in the populationThẻ graphs below represent h What can you conclude from the researcher's results? Cactus Corner Desert Valley 20 • Short horns O Long horns 0. 6. 12 12 Weeks Weeks The hypothesis that longer horns offer greater protection against predation is supported. • The hypothesis that longer horns offer greater protection against predation is NOT supported. The experiment is well designed, but the results are inconclusive about the hypothesis. The experiment is not well designed to test the hypothesis. MacBook Pro Surviving Lizards 20