Fall 2016 Sem Test Study Guide Question Preview (ID: 34161)


Fall 2016 Sem Part 2. TEACHERS: click here for quick copy question ID numbers.

What is the role of the Sun in a forest ecosystem?
a) It provides the energy for all living organisms.
b) It allows oxygen to be formed in the animals.
c) It gives chlorophyll to the producers.
d) It decomposes wastes into nutrients.

Which of these describes a mutually beneficial relationship between two organisms?
a) a dog with worms in its intestines
b) a turtle and a snail that both eat grass live in a river
c) a honeybee pollinating a plant and receiving nectar for food
d) a small fish attached to a shark, eating tiny pieces of the shark's food as it floats by

Which biome receives between 0 and 25 centimeters of precipitation each year, has a temperature range from –27° to 5° Celsius, has frozen soil, and is home to hares, caribou, and wolves?
a) tundra
b) mountain
c) desert
d) savanna

Autotrophs are organisms that produce their own food. Which do scientists classify as autotrophs?
a) plants
b) chordates
c) fungi
d) mold

What is the first source of energy for all food webs?
a) plants
b) minerals in the soil
c) decomposers
d) sunlight

What is the correct series of steps for the movement of energy in a food chain?
a) producers-- consumers-- scavengers and recyclers-- sun
b) sun-- consumers-- producers-- scavengers and recyclers
c) sun-- producers-- scavengers and recyclers-- consumers
d) sun-- producers-- consumers-- scavengers and recyclers

Food webs in the rainforests of Asia contain thousands of species of animals and support many large, predatory animals. Others biomes, such as the taiga of Northern Europe, contain less than 100 animal species and have only a few large predators. Wha
a) number of producers
b) number of herbivores
c) number of carnivores
d) number of decomposers

Karl describes an ecosystem that he visits frequently. The plant life in the ecosystem is mostly grass, about 3 feet tall. The grass is in a muddy area that floods each afternoon with a mix of freshwater and saltwater. There is a small river present.
a) shoreline ocean ecosystem
b) freshwater ecosystem
c) coral reef
d) estuary ecosystem

Which of the following symbiotic relationships is considered parasitic?
a) bees transporting pollen from flowers
b) pilotfish swimming under sharks
c) clown fish bringing in food for the anemone where the fish makes his home
d) ticks feeding on a dog

Oxygen is released into the air by
a) the sun.
b) animals.
c) volcanoes.
d) plants.

What is the function of the cell membrane?
a) It controls materials that enter and exit the cell.
b) It supplies the cell with energy.
c) It stores genetic material.
d) It transports enzymes.

The cells of green plants are capable of producing relatively large amounts of oxygen and simple sugars. Which cell structure is necessary for most green plants to carry out these processes?
a) lysosome
b) chloroplast
c) cell membrane
d) nucleus

What pair of cell structures are found in plant cells, function in protecting the cell and making food, and are not found in animal cells?
a) the cell membrane and ribosomes
b) chloroplasts and cell wall
c) mitochondria and a nucleus
d) flagella and Golgi bodies

What is the primary function of mitochondria in a cell?
a) They store genetic information.
b) They convert food molecules into energy the cell can use.
c) They trap sunlight and use the energy to make food.
d) They ship proteins and other substances across the cell membrane.

Albert is studying food web relationships in wetland ecosystems. He learned that hawks feed on shrews and shrews feed on cattails. What is the original source of energy for wetland ecosystems?
a) plants
b) insects
c) predators
d) the sun.

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