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- How munch bigger is feral cat compare to main coon cat? Are they really big as bobcat? If main coins were feral Will they be huge?Prey size may favor a particular body size among pumas. Graph the relationship between puma weight and prey weight. Pay attention to which variable is the independent variable.Activity 3: DIFFERENCES IN SPECIESResearch 5 similar species with different characteristics.Example: Gartner snakes live One lives in waterin the same regionOne lives in land
- Data was collected concerning Galapagos bird beak size over time. There are 13 types of Galapagos finches, and they are also known as Darwin's Finches. These finches share the same habits and characteristics except for one; they all have different beaks. The differences in their beaks might be the most important aspect of their survival because beak size determines the type of seed able to be eaten. Only the birds with the largest of beaks are able to eat the toughest, biggest, and spine covered seeds. Based on the data given, choose the BEST conclusion. A) This data shows that over time the type of food available remained constant. Eliminate B) This data shows that the environment did not change over the course of time. C) This data shows a fluctuation in bird species over time most likely due to food availability. D) This data shows a fluctuation in bird species over time most likely due to the inheritance of acquired characteristics. Not GradedIguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Galpagos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.3 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.3 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). How much did the population size on each island change between the first and second census?Iguana Decline In 1987, Martin Wikelski began a long-term study of marine iguanas in the Galpagos Islands. He marked iguanas on two islandsGenovesa and Santa Feand collected data on how their body size, survival, and reproductive rates varied over time. He found that because iguanas eat algae and have no predators, deaths usually result from food shortages, disease, or old age. In January 2001, an oil tanker ran aground and leaked a small amount of oil into the waters near Santa Fe. FIGURE 44.3 shows the number of marked iguanas that Wikelski and his team counted in their study populations just before the spill and about a year later. FIGURE 44.3 Shifting numbers of marked marine iguanas on two Galpagos islands. An oil spill occurred near Santa Fe just after the January 2001 census (orange bars). A second census was carried out in December 2001 (green bars). Wikelski concluded that changes on Santa Fe were the result of the oil spill, rather than sea temperature or other climate factors common to both islands. How would the census numbers be different from those he observed if an adverse event had affected both islands?
- Old People e = 100 calories λ = 10 per night h = 2 hours Middle Aged People e = 400 calories λ = 20 per night h = 5 hours Young Adults e = 300 calories λ = 10 per night h = 2.5 hours Suppose that the organism need 1000 calories per night. - Which food item should the organism prefer, and which ones would you expect them to eat on a regular basis? Explain why and show calculations. - Explain marginal value theorem, and how it might relate to an organisms foraging decisions. - λ for Old People should increase in the coming years. How could that affect this organisms feeding on humans?1) Think back to the example of ovenbird evoluon in South America. Ovenbirds are a diverse family of small, insect-eang birds that live mainly in South America. Different ovenbird species have adapted to rocky ocean shorelines, snowy mountains, scorched deserts and tropical rainforests. Like finches, ovenbirds have a variety of beak sizes and shapes, an important indicator of food preference that makes them ideal for studying evoluon. In ovenbirds, "some [beaks] are long and down-curved, like a scythe, for probing into crevices in tree bark and others have short dagger-like bills." What conclusions did the researchers reach? A) ovenbirds are diverse because they do not share any common ancestors B) ovenbirds because successful because they are not native to the area and could easily colonize the area C) birds have different beaks that help them exploit different resources and avoid competition 2) One ant species from Africa is best at competing for space, but is worse at colonizing a…Introduction 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…
- Wind, Warmth Boost Insect Migration Wind and warmth can improve travel time for the billions of insects worldwide that migrate each year, according to a first-ever radio-tracking Researchers equipped monarch butterflies and green darner dragonflies with radio transmitters and tracked them through southern Ontario and several northern States to learn how environmental factors affect daytime insect migration. The study found wind and temperature are more important influences than precipitation for bugs on autumn migration flights spanning thousands of kilometres between their breeding and wintering grounds. Threatened by habitat loss, land use changes and global warming..some 40 percent of insect species risk extinction, yet we know little about what happens to organisms when they migrate. On average, monarchs flew about 12 km/hour and darners about 16 km/hour. The farthest a monarch travelled in one day was 143 km at 31 km/hour, including windspeed. In a single day, a darner flew…three living creature, X,Y,Z. They are given food m and n, where m is obtained from plants and n from meats. X eats m, Y eats n, Z eats both. How you are going to categories the living creatures based on their food source?9)In the video, Dr. Paine says, "all animals are equal, but some animals are more equal than others." Which of the following statements explains what he meant by this? a)Some animals eat at lower trophic levels than others b)Some animals have greater effects on their ecosystem than others c)Some animals are more important to energy flow through their ecosystem d)Some animals are in greater abundance than others e)Some animals eat at higher trophic levels than others