Science 7 Chapter 1-3 - Test Prep Flashcards
Which of the following two organisms are producers?
a. plants and phytoplankton b. plants and consumers c. consumers and phytoplankton d. phytoplankton and chlorophyll
a. plants and phytoplankton
Producers make food using ______ to trap the Sun’s energy in a process called photosynthesis.
a. food chains b. chlorophyll c. cellular respiration d. microscopic organisms
b. chlorophyll
Only a small amount of the energy stored in food is available to the next organism in a food chain because
a. there are more producers than consumers in a food chain
b. there are fewer top consumers than producers in a food chain
c. primary and secondary consumers compete for food
d. most of the energy is used for life processes
d. most of the energy is used for life processes
Temperature, light, air, water, soil, and climate are all __________ parts of the environment.
a. biotic b. abiotic c. living d. boreal
b. abiotic
Choose the phrase that correctly finishes this statement: “A species is…”
a. a specific part of the abiotic environment
b. a way of describing all the living parts of an ecosystem
c. a group of organisms that can successfully mate with each other and reproduce
d. part of the natural decomposing materials in soil
c. a group of organisms that can successfully mate with each other and reproduce
Which of the following are necessary for the survival of living things?
a. air, water, food, and a suitable place to live
b. air, water and companions
c. temperature, light, air, water, soil, and climate
d. oxygen, carbon dioxide, soil, and energy
a. air, water, food, and a suitable place to live
Ecology is the study of the
a. abiotic parts of the environment, such as climate, air, and soil
b. biotic parts of the environment, such as animals and plants
c. interactions between organisms
d. interactions between organisms as well as the interactions between organisms and their environment
d. interactions between organisms as well as the interactions between organisms and their environment
What is an ecosystem?
a. All the interacting organisms that live in an environment and the abiotic parts of the environment that affect the organisms
b. A person who observes and studies the interactions between the biotic and abiotic parts of the environment
c. The relationship among the biotic parts of the environment
d. The relationship between all the abiotic elements of a pond
a. All the interacting organisms that live in an environment and the abiotic parts of the environment that affect the organisms
Large regions that have about the same temperature and amount of rain or snow are known as…
biomes
The four major biomes of Canada are…
tundra, grassland, boreal forest, and temperate forest
What is a population?
A group of individuals of the same species that live in the same ecosystem
Food, water, shelter, and a space in which to live all describe an organism’s…
habitat
When populations share their environment and interact with populations of other species, it is called a…
community
Scientists refer to a biological community and the abiotic parts of the environment that affect the community as…
an ecosystem
If you studied ecosystems to learn about relationships between organisms and any changes in populations that take place over a long period of time, you would be…
an ecologist
Scientists often estimate population sizes in ecosystems by marking off a specific area using a…
quadrat
Which of the following is a way of counting the number of organisms in a small area to estimate the number of organisms in a much larger area?
a. communicating b. sampling c. organizing d. banding
b. sampling
The space where an organism lives and the role an organism plays within its ecosystem is referred to as a…
niche
An organism that creates its own food is called…
a producer
A consumer is…
an organism that cannot produce its own food
Herbivores, carnivores and omnivores are
a. plants, animals and micro-organisms
b. three types of consumers
c. three types of producers
d. three of British Columbia’s 10 ecoprovinces
b. three types of consumers
An organism that eats decaying plants and animals is called…
a scavenger
Parasitism, commensalism and mutualism are
a. three examples of producers
b. the three main types of symbiotic relationships
c. the three main types of ecological relationships
d. three examples of abiotic interactions
b. the three main types of symbiotic relationships
Which of the following is NOT an example of a parasitic organism?
a. tapeworm b. mistletoe c. termite d. lice
c. termite
Which of the following is a symbiotic relationship where one partner benefits and the other does not benefit or lose from the relationship?
a. commensalism b. mutalism c. parasitism d. decomposition
a. commensalism
Which of the following is a symbiotic relationship where both partners benefit?
a. mutualism b. parasitism c. commensalism d. symbolism
a. mutualism
Which of the following is a symbiotic relationship where one partner benefits and the other is harmed?
a. commensalism b. mutualism c. symbolism d. parasitism
d. parasitism
The amount of carbon in the environment
a. does not change
b. is converted to heat and lost to the abiotic environment
c. is called the carbon cycle
d. immediately converts to carbon dioxide
a. does not change
The way in which carbon is used and reused through the ecosystem is called…
the carbon cycle
The four main processes of the water cycle are
precipitation, condensation, transpiration, and evaporation
The process in which water evaporates from the leaves, stems and flowers of plants is called…
transpiration
The process in which liquid water changes into gas is called…
evaporation
The process in which water vapor changes to a liquid is called…
condensation
Water that moves over the surface of the ground into lakes and rivers is called…
run-off
When any substance is added to the environment faster than it can be broken down, stored, or converted to a non-harmful form, it is called…
pollution
Bioaccumulation is…
the build-up of pollutants in an organism
In a food chain, the organisms most affected by bioaccumulation are…
top consumers
Any abiotic or biotic factor that controls the number of individuals in a population is…
a limiting factor
A population that has reached the largest number of individuals that the environment can support over a long period of time
a. has no limiting factors
b. contains only top consumers
c. has reached its carrying capacity
d. has changed from a food chain to a food web
c. has reached its carrying capacity
The predator-prey cycle shows
a. how one population can limit another population
b. how wolves and elk maintain a mutualistic relationship
c. how bioaccumulation helps maintain balance in nature
d. how pollutants are recycled through species in the environment
a. how one population can limit another population
Competition for resources is a limiting factor because
a. there is only a limited amount of food and living space available in any ecosystem
b. predator-prey populations often increase and decrease in cycles
c. abiotic factors such as light, water, and temperature are present
d. cities, highways, campgrounds and orchards provide alternate environments for animals and plants
a. there is only a limited amount of food and living space available in any ecosystem
One of the main reasons wildlife populations become threatened is…
loss of habitat
The gradual change in the make-up of a biological community over time is called
ecological succession
Areas set aside to protect examples of the different habitats in the province are called…
ecological reserves
___________ is the careful and responsible management of something for which you are responsible.
Stewardship
The Nisga’a operate fish wheels on both the lower and the upper Nass River, allowing biologists to tag fish at the lower wheel and count them upstream. This is an example of a. an ecological reserve b. a habitat restoration project c. a habitat enhancement project d. environmental monitoring
d. environmental monitoring
Objects found in nature that people use to meet their basic needs are a. baseline resources b. natural resources c. symbiotic resources d. traditional resources
b. natural resources
Which of the following is NOT a renewable resource? a. natural gas b. trees c. fish d. wheat
a. natural gas
Which of the following is a non-renewable resource? a. timber b. cattle c. coal d. orchards
c. coal
When the resources of nature are being renewed or replaced at least as fast as they are used, this is a. reliability b. renewing the resources c. susceptibility d. sustainability
d. sustainability
What is the biggest threat facing organisms today?
loss of habitat
When sulfur and nitrogen compounds mix with water vapour, __________ is formed.
acid rain
A species that is almost extinct is called…
an endangered species
A species that could become endangered if the factors limiting its population are not reversed is called…
a threatened species
Scientists use _____ to track changes in ecosystems by comparing the results of investigations done at different times. a. ecological watches b. organism monitoring c. environmental system gathering d. ecosystem monitoring
d. ecosystem monitoring
Four common types of ecosystem monitoring are…
physical monitoring, environmental monitoring, chemical monitoring, and biological monitoring.
