Cumulative Exam — Cumulative exam Answers

Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the population density of bison living in Yellowstone?a.1.3 bison/mib.16 bison/mic.77 bison/mid.0.77 bison/mi

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Which of the following is not a reason for cluster distribution of organisms?a.localized availability of resourcesb.herd behaviorc.hive behaviord.territorial behavior

A scientist conducted an investigation about the effects of diet on disease resistance in mice and made surprising observations. The mice with a genetic ear mutation seemed to show similar patterns of resistance compared to mice with normal ears. Based on this information, what will the scientist most likely do next?

Which of the following is not true of deciduous forests?a.characterized by four seasonsb.trees lose their leaves in the fallc.precipitation is concentrated in one season d.averages 30-60 inches of precipitation annually

Organisms that live in desert and desert-scrub biomes have developed unique adaptations that aid in their survival. Coyotes are crepuscular desert mammals that grow to be approximately three feet tall and weigh between 20 and 50 pounds when full-grown. How does being crepuscular help enable the coyote to survive the heat of the desert? a. It is only active at dawn and dusk b. It is only active at noon c. It is only active at night d. It is only active in the morning Please select the best answer from the choices provided

Which question about dinosaurs is a scientific question?

The three methods for determining population size are observation, mark and recapture, and sampling.

The biogeochemical cycles move through biotic and abiotic regions.

A scientist performs an investigation and discovers that increased temperature decreases the number of offspring that an organism produces. Then, the scientist asks a new question about the impact of climate change on the species because

Organisms that live in deciduous forests have developed unique adaptations that aid in their survival. How are the bill and feet of the platypus specially adapted for survival in their environment? a. close the nostrils in its bill when diving underwater; pointed bill for spearing fish for food; detect vibrations of moving prey using the pads on their feet b. detect the electrical discharges of prey in water using small pits on its bill; crush the food with grinding pads on the top and bottom of its bill; webbed feet c. have wide nails for digging burrows; webbed feet; grind food with modified teeth on the upper part of their bill d. detect the electrical discharges of prey in the sand using small pits on its bill; pointed bill for spearing fish for food; ‘finger-like’ toes on their feet that help them hold onto and eat their food Please select the best answer from the choices provided

What is the purpose of the dense hairs around the flowers of the woolly lousewort?a.The dense hairs keep moisture off the flower.b.The dense hairs trap heat from the sun.c.The dense hairs protect the flower from caribou.d.The dense hairs keep the flower’s seeds from blowing away.

The sun is the ultimate source for energy on the Earth.

Which statement is true for photosynthesis?

A question about a moral issue

Plants do not adapt to their environment because they do not compete for resources.

Which question is a nonscientific question?

Duck-billed platypuses are one of five kinds of monotremes.

Which of the following statements about the tundra is true?a.The tundra has a dense covering of trees.b.There are two main categories of the tundra biome.c.Temperatures in the tundra range from extreme highs to extreme lows.d.The tundra biome does not support animal life.

What is likely to happen in the long term if the Earth continues to absorb more energy than it emits?a.The Earth will discontinue recycling energy.b.Organisms will begin to compensate for the change by incorporating more energy.c.The overall temperature of the Earth will increase.d.The nutrient cycles will happen more frequently.