Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MARY > Grade 6 - Ecosystem > Flashcards

Grade 6 - Ecosystem Flashcards

1
Q

What term refers to a community of living organisms interacting with their environment, which can vary in size from large areas like a pond or a backyard to smaller environments like a discarded bottle or a log, and can be either natural, such as a wilderness area, or human-made, like an aquarium?

A

Ecosystem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What term is used to refer to any living species or organism?

A

Individual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Refers to a group of similar organisms that can breed and produce offspring.

A

species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What do you call a group of organisms of the same species that live in a specific and similar geographic area at a given time?

A

population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

True or False: Organisms in a population may have different characteristics such as color, covering, shape, and size between themselves and other populations.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

This refer to populations of different species in a specific area at a given time.

A

community

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

This refers to the variation of living things together in one area.

A

biodiversity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

This includes some communities of living organisms interacting with the nonliving environment.

A

ecosystem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

This refer to a groups of ecosystems with similar climate (weather, temperature) and the same kind of biotic and abiotic factors in a large area on Earth’s surface.

A

biome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is formed when we all consider all the different biomes, the atmosphere and with all the community of living and nonliving things in their defined habitats. This is the sum of all these ecosystems on Earth.

A

biosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What do you call the living components of an ecosystem and give some examples.

A

biotic factors.

  • plants, animals, bacteria, fungi, and protists.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

They are producers in an ecosystem. They make their own food using materials from the nonliving environment through photosynthesis

A

plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

They are consumers in an ecosystem. They cannot carry out photosynthesis so they get food from the environment by eating or consuming other organisms.

A

animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

They are organisms that feed on dead organic matter, such as decaying plants and animals.

A

scavengers and detritivores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Examples of organisms that feed on dead plants and animals.

A

earthworms, beetles, vultures, crabs, and some seabirds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Examples of decomposers, they get energy from waste materials and help break down dead animals and plants into minerals that enhance the composition of soil.

A

bacteria and fungi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

They are the nonliving components of an ecosystem.

A

abiotic factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Give some examples of abiotic factors?

A

sunlight, water, soil, minerals, air, and climate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What term is used to describe any part or condition of the abiotic environment that determines whether or not an organism can survive?

A

limiting factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Examples of limiting factor?

A

physical barriers
sunlight
food supply
space
water
temperature
soil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The primary source of energy for all living components in the planet. It provides energy for the plants to manufacture food and for crops to grow.

A

Sun

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

A series of organisms showing a one-way path of feeding relationship. The energy from food eaten is passed on from one organism to another in a sequence of events.

A

food chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the feeding mechanism or trophic level in a food chain that always begins with, such as green plants or algae?

A

producers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are the main groups of consumers based on the type of food they eat?

A

Herbivores - (plant-eaters)
Carnivores - (meat-eaters)
Omnivores - (both plant and meat eaters)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The organism that feeds directly on a producer is called?

A

primary or first-order consumer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The one that eats the primary consumer is called?

A

secondary or second-order consumer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

A number of food chains that are interconnected together is called?

A

food web

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the two general categories of a food web:

A

grazing food web
detrital food web

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Discuss the grazing food web flow.

A

In a grazing food web, the flow begins with green plants, algae, or photosynthetic planktons. The energy or food materials are passed from producers to consumers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Discuss the detrital food web flow.

A

The flow begins with organic remains. The energy or food materials are passed from dead animal or plant matter to decomposers and scavengers and then to consumers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A complete view of how the amount of energy flow in an ecosystem is provided by?

A

energy pyramid

32
Q

How does the energy pyramid works?

A

It shows the amount of energy available at every trophic level. It also illustrates the decreasing amount of energy as the energy is passed on from one trophic level to another.

33
Q

Who trap the energy from the sun and convert it to chemical energy for food making, growth, and reproduction at the base of an energy pyramid?

A

Producers

34
Q

What level of the energy pyramid where most energy is stored?

A

At the base of an energy pyramid.

35
Q

What represents the second level of an energy pyramid?

A

The first-order consumers.

36
Q

What do organisms of the same species perform?

A

Intraspecific interactions

37
Q

Fill in the blanks:

Many animals use 1._______ to communicate, while plants and other animals use chemical signals called 2.________.

A

1.sound

  1. pheromones
38
Q

Usage of pheromones for ants?

A

to track and guide their way

39
Q

How does honeybees distinguish mates from intruders?

A

Honeybees touch their antennae.

40
Q

What do organisms of different species perform?

A

Interspecific interactions

41
Q

In an ecosystem, this occurs when two or more organisms struggle to get and use the same resources at the same time.

A

competition

42
Q

An interaction where one organism (the predator) hunts, kills, and consumes another organism (the prey) for food?

A

Predation

43
Q

This is called the predator-prey relationship.

A

Predation

44
Q

A type of relationships that involve two or more species living together and interacting with one another. Interactions are not limited to feeding; it may also include sharing or reciprocal relationships

A

symbiotic relationships

45
Q

Is a type of symbiotic relationships where one organism is benefitted while the other is neither benefitted nor harmed.

A

commensalism

46
Q

Is a type of symbiotic relationships where two organisms benefit from each other. The two organisms live harmoniously together.

A

mutualism

47
Q

Is a type of symbiotic relationships where one organism benefits while the other is harmed.

A

parasitism

48
Q

A vast area of woodlands covered by a thick vegetation, tall timber trees, and a wide range of foliage, which is a group of leaves, flowers, and branches. It occupy almost 6-7% of Earth’s surface, and receive warmth and abundant rainfall throughout the year.

A

Tropical rain forest

49
Q

The highest layer of the rain forest. It receives most of the sunlight, thus helps in growing tallest trees. It is home to many wild birds such as eagles and hummingbirds, and insects such as crickets.

A

emergent layer

50
Q

The third layer and consists of the upper part of the trees. This is the primary layer of the forest.

A

canopy layer

51
Q

A layer under the thick leaves but above the ground, making it darker but cooler.

A

understory layer

52
Q

The bottom layer of the rain forest. The layer is covered with fallen leaves and small plants such as mosses.

A

forest floor

53
Q

Importance of rain forests, provide as many ways.

A
  1. Forests and its green plants produce oxygen, which is the gas that humans and animals breathe in.
  2. Forests help in soil conservation and flood prevention. Forests also lessens siltation and leaching of nutrients in the soil.
  3. Forests regulate climate. Forest trees absorb sunlight and help cool the environment.
  4. Forests provide habitats for various exotic and endemic species of plants and animals.
  5. Forests serves as watersheds. The underground water from rivers and streams that are connected to the forests become a source of water for home and industrial use.
  6. Forests serve as sources of food, medicine, and raw materials for commercial products.
  7. Forests provide opportunities for recreation and education. People go to forests to enjoy the beauty of nature and to find peace in the surroundings. Scientists and other professionals select forests to conduct field study and research about biodiversity.
54
Q

Like rain forests, they are mostly found in the tropical regions. They are from hard and soft corals, which took millions of years to form.

A

coral reefs

55
Q

What is the name of the coral reef found in Palawan, which is included in UNESCO’s list of World Heritage Sites.

A

Tubbataha Reefs Natural Park

56
Q

Coral polyps form limestone skeletons from the absorbed calcium in seawater and are deposited and the build up a chain of large rocky formations called ________.

A

reef

57
Q

Most reef-building corals contain photosynthetic algae, called ________, which live in their tissues.

A

zooxanthelae

58
Q

Different formations of coral reefs.

A

fringing
barrier
atoll

59
Q

An underwater set of living corals that grow closer to the shore and around an island.

A

Fringing reef

60
Q

Formed offshore and is separated from the shorelines by channels called lagoons.

A

Barrier reef

61
Q

A circular reef formation that surrounds a deep or large lagoon.

A

Atoll

62
Q

What are the famous atolls in our country, Philippines?

A

Tubbataha Reefs Natural Park
Apo Reef

63
Q

Importance of Coral Reefs

A
  1. They serve as habitat, shelter, and breeding sites for different species of marine animals.
  2. They act as barriers that protect coasts and communities from the damaging effects of tropical storms, strong current, and wave actions by slowing down the water before getting to the shorelines.
  3. They increase the biodiversity of the world and supply food for millions of people every year.
  4. They provide resources and income to people to feed their families.
  5. They help decrease the amount of carbon dioxide in the water.
  6. They help in developing the socio-economic status of a community with the eco-tourism and educational research on marine ecosystem it offers.
64
Q

They are wetlands along coasts and are found in tropical and subtropical regions such as the Philippines. They are characterized by salt loving trees, shrubs, and other plants.

A

Mangrove swamps

65
Q

They are recognized by DENR as the rain forest of the sea.

A

Mangrove forest

66
Q

Importance of Mangrove Swamps

A
  1. Mangroves protect the shoreline from erosion caused by damaging storms, winds, waves, and floods.
  2. They filter pollutants and trap sediments from the land.
  3. Mangroves serve as valuable nursery areas for swamp animals.
  4. Mangroves swamps provide commercial and fishing industries.
  5. Mangroves support threatened and endangered species.
  6. Mangroves offer renewable resources.
67
Q

A massive and large scale clearing of forests without replacing the collected trees.

A

Deforestation

68
Q

What are some of the effects of deforestation?

A

Global warming
Greenhouse effect
Erosion
Flash flood
Landslide
Drought
Extinction of species

69
Q

Then whitening of the coral that is due to the disappearance of the zooxanthellae.

A

Coral bleaching

70
Q

A brownish algae that live symbiotically with the corals.

A

Zooxanthellae

71
Q

What are some illegal fishing methods that destroy coral reefs?

A

dynamite fishing
cyanide fishing
Muro ami
toxic chemical bleaching

72
Q

The total quantity of human inhabitants of a particular area at a specified time.

A

Human population

73
Q

This arises when the population grows to a certain size that the food, water, space and other resources are not enough to sustain life.

A

Overpopulation

74
Q

What are the effects of overpopulation?

A

Malnutrition due to food shortage

Unsanitary lifestyle due to overpopulation

Diseases and epidemics due to overcrowding

Natural habitats converted into relocation sites for urban poor.

75
Q

___________ is needed in utilizing the available resources to meet the needs of today without sacrificing the needs of the future.

A

Sustainable development

76
Q

The measure of human demands on Earth’s ecosystems. It is the measure of the amount of natural resources we use each year.

A

ecological footprint

77
Q

WWF -

A

World Wildlife Fund

MARY (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions