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A:
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A: All the substances that we see around can be living or nonliving.
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A: Geographical isolation is one of the ways of evolution where individuals of species are separated…
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A: Domestication is process that means raising of plants and animals, by care of humans.
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A: A national park is an area used for the conservation purpose and it is always a protected area.…
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A: Emergent properties- It's a term commonly used in science,systems theory, philosophy,urban…
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A: Identification : Whittaker proposes 5 kingdom classification based upon cell structure,…
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A: The dung bettles are the type of beetles that feed on the dung and the faeces. The male has a horn…
Q: The scientific name for the African rock python is Python sebae. Which name indicates its genus?
A: A name given to a creature by researchers, notably the scientific name, which includes the genus and…
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A: Feral cats and domestic cats As cats are Carnivores they depend on their head and jaws for catching…
Q: Describe the characteristics that humans share with the chimpanzees.
A: Humans and chimps descended from the same ancestor. Chimpanzees and humans are the most closely…
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A: Sea lions are pinnipeds, meaning they have external ear flaps, long foreflippers, the ability to…
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A: Gibbons, Orangutans, Gorillas, Chimpanzees, and Humans are classified as hominoids.
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A:
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A: Ecosystem can be described as the geographic area where all the organisms stay together and form a…
Q: The cranial capacity of Archiac Homo sapiens is approximately 1200 cc 900 cc 1450 cc 700…
A: Humans do not evolve from the todays chimpanzees but human develop along side with the chimpanzees…
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Q: discuss three adaptive traits that enable camels to survive in arid environmental condition
A: Camels are called as the “ship of the desert”. They are so well adapted to the desert conditions…
Q: Name two different species of cattle.
A: Cattle is a plural term that in general refers to all bovine animals which include cows, buffalos,…
Q: Describe two mammal order, structures, and behaviors.
A: Mammals Mammals are the vertebrate animals which have warm blood and hairy body.
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- Upland game hunters in Illinois have been noticing a decrease in therabbit and pheasant populations over the past five years. They havelobbied the Department of Natural Resources and the statelegislature to allow them to shoot red-tailed hawks, one of therabbit’s and pheasant’s main predators. Explain why shooting hawkswill not ultimately solve the problem of a decreased rabbit andpheasant populationThe Atlantic cod population is of primary economic importance to fishingcommunities throughout the maritime provinces in Canada. Unfortunately, thispopulation has underwent an extreme collapse in recent years due to overfishing.Some argue, however, that the collapse of the cod population may actually beattributed to an increase in the population of harp seals, a known predator ofcod. One suggestion to help cod stocks recover is therefore to permit the huntingof harp seals on a large scale. Suggest and explain one potentially negativeconsequence of limiting the harp seal population.In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The data collected during this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Fill in the last column for each year. The first has been calculated for you. Then graph the deer and wolf populations on the graph below.…
- In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The data collected during this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Fill in the last column for each year. The first has been calculated for you. Then graph the deer and wolf populations on the graph below.…One concept of conservation biology is known as minimum viablepopulation. Some species’ populations are so fragmented andsmall that they may have very little genetic variability left. Withminimal genetic variation in the population, there is little likelihoodthat a population can adapt to an environmental threat, such as anew disease. Florida panthers are at or below the minimum viablepopulation level (estimated population less than 80). 1)Do you think that it is practical to use limited resources toconserve a population like the Florida panther? 2)Why?Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
- Populous nations such as China have instituted strict policies tocurb population growth. In 1979, China implemented a “one-child”policy.Do you think that such strict control methods are appropriatefor population control?The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US. However only 5 million acres now remain causing major declines in the Gopher tortoise population. Given this, what is expected to happen to overall diversity of species that depend on Gopher Tortoise burrows?a. increaseb. decreasec. stay the sameIn a population of sociable weavers (small birds that live in the African savanna), body weight was recorded for 977 birds and graphed. (n) Identify and describe the type of selection that is occurring in the population of sociable weavers. (o) A group of fire ants from North America were accidently brought to African savanna by an American tourist in their luggage. The fire ants bite and cause harm to all organisms and their food supply in the savanna. Explain how the fire ants will impact the ecosystem dynamics
- SCIENCE, TECHNOLOGY, AND SOCIETY Some people regardthe rapid population growth of less industrialized countries asour most serious environmental problem. Others think that thepopulation growth in industrialized countries, though smaller,is actually a greater environmental threat. What problems resultfrom population growth in (a) less industrialized countriesand (b) industrialized nations? Which do you think is a greaterthreat, and why?* This is a made up animal. Could dispersion be a population characteristic for the following animal. Their specialized energy consumption (diet) needs to undergo multiple energy transfers with considerable energy losses (radiant energy to aquatic animals) to support their species. is a slow-moving carnivore with a duck bill, flippers, a long neck, and a short range of motion. Is slow and awkward, with no fangs, claws, or nails. While this species is a mammal, it also has the ability to lay eggs as a part of its reproductive cycle. However, a female Jacks can only lay one egg every 5 months. Unlike similar freshwater semi-aquatic mammal species, the beaver, the Platyoth, doesn’t build itself a home or nest instead, it roams. At night, the Jack will locate riparian sedges to hide for sleep.The global human population has surpassed 7 billion, far exceeding our population’s size throughout our history on Earth. Name some specific means by which we have apparently raised Earth’s carrying capacity for our species. Do you think we can continue to raise our carrying capacity? How might we do so? What limiting factors exist for the human population today? Might Earth’s future carrying capacity for us decrease? Why or why not?