Interdependence Of Life: Question Preview (ID: 18795)

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In what type of symbiotic relationship does one species benefit while the other is not affected?
a) predation b) mutualism c) commensalism d) competition
How could you use a dichotomous key?
a) to identify an organism you found on a field trip b) to identify the habitat of an unknown organism c) to figure out what predators feed on an orgamsm d) to identify how an unknown organism reproduces
What effect would the removal of insects and rabbits from an ecosystem MOST LIKELY have?
a) a decrease in plants b) a decrease in coyotes and ravens c) an increase in eagles and squirrels d) an increase in snakes and coyotes
You are having a hamburger for lunch . What was the original source of the energy in the beef of the hamburger?
a) a cow b) air c) plants d) sunlight
The tall trees living in a fo rest make it difficult for small plants on the fo rest floor to get the sunlight they need. In terms of sunlight, what kind of relationship exists between the trees and the smaller forest plants?
a) mutualism b) predation c) parasitism d) competition
Some shark species allow small fish to enter their mouths without eating them. The small fish feed on scraps of nutrients around the shark's teeth. The sharks get their teeth cleaned. What kind of relationship is this?
a) commensalism b) parasitism c) mutualism d) predation
The Northern spotted owl makes its horne only in old-growth forests. What will happen to a population of Northern spotted owls if all the trees in the forest where it lives are destroyed by a fire?
a) the population will begin living on the ground b) the population will die off c) the population will be unaffected d) the population will move to the desert
A cow eats grass to get energy. Which sentence correctly describes the energy transfer?
a) All the stored energy goes from the producer to the consumer. b) Most of the stored energy goes from the producer to the consumer. c) Some of the stored energy goes from the producer to the consumer. d) None of the stored energy goes from the consumer to the producer.
As bees gather nectar, they transfer pollen from one flower to another. Which BEST describes the relationship between the bee and the flower?
a) Neither the bee nor the flower benefits. b) The bee benefits, but the nower is harmed c) The bee and the flower both benefit d) The flower benefits, but the bee does not.
Which of the following is a symbiotic relationship in which both organisms benefit?
a) mutualism b) commensalism c) parasitism d) competition
If the snake population of an ecosystem suddenly died off, which species would MOST LIKELY increase in number?
a) wolf b) cougar c) deer d) mouse
A new species of organism is introduced into an ecosystem in which it has no predators. The organism feeds primarily on mice. What effect is this organism MOST LIKELY to have on the mouse population?
a) The new organism will cause the number of mice to increase. b) The new organism will cause the number of mice to remain the same. c) The new organism will cause the number of mice to decrease d) The new organism will have no effect.
Which of the following provides the MOST energy to Earth's organisms?
a) oxygen b) carbon dioxide c) sunlight d) water
In a food chain, what is the role of the fungi?
a) to convert nitrogen from the air into a form of nitrogen that can be used by plants b) to break down wastes and return matter to the environment c) to move energy from producers to consumers d) to convert the energy of sunlight into chemical energy
Suppose the available nutrients in the soil of an ecosystem decrease. Over time, which adaptation is MOST LIKELY to evolve among the plants that survive there?
a) the plants will grow taller b) the plants' root systems will become larger c) the plants will develop bigger flowers d) the plants' need for water will decrease
Certain bacteria live in the human intestine, where they are protected and make vitamins that the human body uses. What type of symbiotic relationship is this an example of?
a) mutualism b) competition c) commensalism d) parasitism
Which of the following BEST explains why humans selectively breed plants?
a) to produce offspring that are genetically identical b) to produce offspring that have greater genetic variation c) to produce offspring that have specific traits d) to produce offspring that have no genetic similarities to one another
A fox eats a rabbit that feeds on plants. The fox is a
a) producer. b) primary consumer. c) secondary consumer. d) decomposer.
Which list below shows the order in which energy flows through an ecosystem?
a) sun to producers to consumers b) consumers to producers to sun c) sun to consumers to producers d) consumers to sun to producers
What is the relationship between human and mosquitoes?
a) mutualism b) parasitism c) commensalism d) predation
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