1.
2.
3. Label the tiers of the forest
A red-haired cheat with pointed ears and a long tail, a hunter of birds and mice is __________________________________.
5. List the types of reservoirs:
6. Complete the sentences:
_____________________________________________________ grow in the forest, and _________________________________________________ in the meadow. All insects have notches on their bodies and have 6 legs. An ant has notches on its body, which means it is _____________________________________.
7. What natural community?we are talking. Emphasizecorrect answer.
a) forest; b) meadow; c) pond.
Last name, first name________________________________________________
Test work on the surrounding world
"Natural Communities"
1. Living things live in one place and are connected to each other. Such a union of living beings is called _________
_______________________________________________________
2. What is not true of natural communities?
a) forest; b) meadow; c) soil; d) pond.
3. Label the tiers of the forest
4. Find out the animal by description:
A small animal with a long thin tail feeds in the field all summer and autumn, and hides grain in underground holes for the winter - this is ________.
5. List the types of reservoirs: _____________________________________________________.
6. Complete the sentences:
_____________________________________________________ grow in the forest, and ___________________________________________________ in the meadow. All insects have notches on their bodies and have 6 legs. An ant has notches on its body, which means it is __________________________________________.
They call him the doctor of the forest, he saves trees from insects ________.
7. What natural community are we talking about? Underline the correct answer.
Shrubs grow here and herbaceous plants, there are many animals. There are also mushrooms here.
a) forest; b) meadow; c) pond.
A wonderful carpet of herbs spread around. Butterflies flutter silently above the flowers, bees and bumblebees hum:
a) forest; b) meadow; c) pond.
a) forest; b) meadow; c) pond.
Peas, beans, peanuts - _____________________________________
| Starfish |
10.
List the fruit crops that grow in the garden: _________________________________________________________________________________________________________.
A wonderful carpet of herbs spread around. Butterflies flutter silently over the flowers, bees and bumblebees hum:
a) forest; b) meadow; c) pond.
This is an amazing house, inhabited by numerous residents who have adapted to life in or near the water:
a) forest; b) meadow; c) pond.
8. Write down the names of groups of field crops:
Wheat, rye, buckwheat, rice, corn - _______________________
Peas, beans, peanuts - _____________________________________________
Pumpkin, cabbage, potatoes, eggplant, carrots - _________________
Sunflower - _____________________________________________________
Linen, cotton - ___________________________________________
9. Connect with arrows the habitat with animals and plants:
| Starfish |
10. A plot of land occupied by fruit crops is __________.
List the fruit crops that grow in the garden:_________________________________________________________________________________________________________________.
3. They live in trees...
c) moles, moose, worms.
4. They live on the forest floor...
c) chanterelles, saffron milk caps, boletus.
c) gopher, bustard, roe deer.
Test "Forest - natural community".
1. The forest is called a natural community because...
a) various plants grow next to each other in the forest;
b) all the inhabitants of the forest live together, are closely connected with each other;
c) the entire forest - from the treetops to the ground - is inhabited by animals.
2. In the forest, plants form tiers:
a) upper – mosses and lichens, middle – trees, lower – shrubs;
b) upper – trees, middle – herbaceous plants, lower – shrubs;
c) upper – trees, middle – shrubs, lower – grasses, mosses and lichens.
3. They live in trees...
a) squirrels, woodpeckers, nutcrackers; b) mice, hares, bears;
c) moles, moose, worms.
4. They live on the forest floor...
a) hedgehogs, moles, shrews; b) bacteria, insects and their larvae;
V) ladybugs, bark beetles, wood mice.
5. K edible mushrooms relate:
a) fly agarics, gall mushroom, false honey mushrooms; b) raincoats, toadstool, valui;
c) chanterelles, saffron milk caps, boletus.
6. Select a group of animals and plants of the forest community:
a) bell, timothy, clover, bee, quail, corncrake;
b) spruce, pine, birch, raspberry, strawberry, cuckoo, woodpecker, elk;
c) wheat, rye, corn, potatoes.
7. Find the animals of our region:
a) sable, tiger, squirrel - flying squirrel; b) elk, wild boar, bark beetle;
c) gopher, bustard, roe deer.
8. Which animal does the forest floor help:
a) hungry animals; b) small animals;
c) those animals that hibernate.
Biology test Natural communities for 6th grade students with answers. The test consists of 2 options, each with 8 tasks.
1 option
1. A natural community is formed by those located on the same territory
1) spruce stumps
2) cars
3) volcanoes
4) living organisms
2. All types of interactions between the natural community and the environment represent
3. Organisms that carry out the process of photosynthesis in an ecosystem are called
4. They feed on the remains of dead bodies and secretions of living organisms.
5.
A. Animals in an ecosystem are able to exist separately without other living organisms.
B. The bird species of the broadleaf forest differ from the set of bird species found in the steppe.
1) only A is correct
2) only B is correct
3) both judgments are correct
4) both judgments are incorrect
6.
Destroyers of organic matter and living things in the natural community include
1) bacteria
2) algae
3) soil worms
4) beasts of prey
5) mushrooms
6) flowering plants
7. Match the organism with its role in the ecosystem.
Organism
1. Spruce
2. Fox
3. Mouse
4. Birch
5. Frog
Role in the ecosystem
A. Manufacturers
B. Consumers
8. Establish the correct sequence of links in the food chain of the broad-leaved forest.
1) eagle owl
2) linden
3) finch
4) butterfly
Option 2
1. An example of a natural community is
1) waste dump
2) gas station
3) moss hummock
4) treatment plant
2. A system of complex relationships between a community of living organisms and environment represents
3. Herbivorous and predatory animals living in the ecosystem are classified as
4. Food connections that are established between organisms in a community are
1) ecosystem
2) biogeocenosis
3) power circuit
4) factors inanimate nature
5. Are the following statements true?
A. All living organisms in the community influence each other.
B. Food networks in an ecosystem are more extensive than food chains.
1) only A is correct
2) only B is correct
3) both judgments are correct
4) both judgments are incorrect
6. Choose three true statements.
The group of consumers in the ecosystem includes
1) buttercup
2) hare
3) bear
4) spruce
5) owl
6) gravedigger beetle
7. Establish a correspondence between the organism and its role in the ecosystem.
Organism
1. Rotting bacteria
2. Soil worms
3. Viper
4. Squirrel
5. Magpie
Role in the ecosystem
A. Consumers
B. Destroyers
8. Establish the correct sequence of links in the power circuit.
1) wolverine
2) earthworm
3) leaf litter
4) mole
Answer to the biology test Natural communities
1 option
1-4
2-1
3-2
4-3
5-2
6-135
7-ABBAB
8-2431
Option 2
1-3
2-1
3-2
4-3
5-3
6-235
7-BBAAA
8-3241
Environmental factors acting on the body.
biotic
abiotic
both answers are correct
What effect does light have on a plant?
growth, flowering, fruiting
seed germination
both answers are correct
Light is an environmental factor that determines the life of plants, most of which are photoautotrophic. The radiant energy of the Sun is a prerequisite for earthly life. sunlight regulates the growth and development of plants, and can also have a damaging effect. Light is one of the most important factors in the life of a green plant, as it is the source of energy in the process of photosynthesis. It also affects other functions of the plant organism - its growth, flowering, fruiting, as well as on seed germination. The attitude of plants to light is different; on this basis, three groups are distinguished: light-loving, shade-loving and shade-tolerant.
The influence of living organisms on plants.
animals eat, pollinate
darken, use as a support
both answers are correct
Animals feed on plants, pollinate them, distribute fruits and seeds. Large plants can shade young, small. Some plants use others for support. Microorganisms, decomposing plant residues enrich the soil with humus and minerals.
The influence of plants on the environment.
change the composition of air and soil
stabilize and protect the soil from destruction
both answers are correct
Plants change the composition of the air: moisturize it absorbs carbon dioxide and releases oxygen. Change soil composition- absorb some substances from it and release others into it. Plant root systems fix the slopes ravines, hills, river valleys, protecting soils from destruction. Forest plantings protect the fields from dry winds.
Characteristic features of light-loving plants.
light affects plant shape
light affects the color of the plant: stem, leaf
both answers are correct
Light-loving plants live only in open areas illuminated by the sun, where vegetation cover is quite sparse. Light has a big impact influence on plant shape. Growing in open areas, as a rule, they are low, branched, with a wide crown. Light-loving plants have a characteristic leaf structure. They are usually small, dense, with shiny thick skin and numerous stomata. Many plants have leaves covered with a waxy coating or hairs, which protects them from direct exposure to sunlight. Well developed mechanical tissues and root system.
Characteristics of shade-loving plants.
poorly developed mechanical and conductive tissues
leaf blades are fragile and thin. Stomata on the upper and lower sides of the leaf
both answers are correct
Characteristic features of aquatic plants.
small body surface
powerful root system
there is no right answer
Most plants living in water have a very large body surface. They absorb water and substances dissolved in it over the entire surface of the body, and therefore the root system is poorly developed and sometimes completely absent. There are no stomata on underwater leaves.
Types of plant communities.
forests, meadows, swamps
steppes, tundra
both answers are correct
Vegetation is the totality of plant communities that exist in a certain area. Depending on the predominance of certain species and living conditions, plant communities are united into large groups. Each type of vegetation has its own character traits, by which it can be distinguished from others. Meadows and steppes- these are thickets of grass knee-high, waist-high, or taller than human height. Some meadow and steppe grasses go from germination to fruiting and death in one season, others in two, and still others live for years and decades. Swamps are called communities of plants that are partially submerged in water and partially protruding from it. They are formed by grasses, sedges, mosses, and shrubs. Plants tundra develop very slowly. Tundra plants, as a rule, are low-growing - the snow covers and bends them down. IN deserts where it rains every year, communities of ephemerals develop. After spring rains, plants cover the soil with a carpet and in 3-8 weeks they have time to grow and bear fruit, and perennials also stock up on nutrients. The size of ephemerals depends on moisture content - plants that in moisture-rich years reach a size of 30-39 cm, and in dry years grow up to 3-4 cm. Some types of desert plants have small, almost imperceptible leaves or do without them at all - photosynthesis is carried out by stems . Other plants have large leaves in the wet season and small ones in the dry season.
Life forms of plants that make up a deciduous forest.
first tier: oak, linden, birch
first tier: grass, bird cherry
first tier: grasses and ferns
Plant communities do not arise by chance: they develop gradually over many millennia. As a result, different plant species in the community adapt to living together. Layering is most clearly expressed in forest communities. In a deciduous forest, oaks, lindens, birches and other large trees form the first upper tier.
Natural changes in plant communities can be caused...
climate change
soil composition or structure; the vital activity of the plants themselves
both answers are correct
Natural changes in plant communities can be caused by changes in climate, soil composition or structure, and the vital activity of the plants themselves. Under the influence of these reasons, some plants may appear in a community, while others may disappear. Vegetation changes also occur in forest communities. Shade-tolerant spruce trees grow beautifully under the canopy of a birch forest. Years go by. The spruce grows and occupies the upper tier of the forest. Old birch trees are dying. But young light-loving birches cannot survive - there is too little light for them under the spruce crowns. Gradually there is a change in vegetation in the lower tier. Thus, the birch forest is replaced by spruce forest.
The ancestors of the kingdom of green plants.
unicellular algae
bacteria
lichens
Screening test on the topic “Natural communities”
Students______3rd grade___________________________
1.What is a natural community?
a) the complex unity of living and inanimate nature;
b) unity of plants, animals, people;
c) water, air, minerals, soil;
d) trees, shrubs, mushrooms, herbs.
2.What does not apply to natural communities?
a) forest; b) meadow; c) soil; d) pond.
3. What natural community are we talking about?
Shrubs and herbaceous plants grow here, and many animals live here. There are also mushrooms here.
a) forest; b) meadow; c) pond.
A wonderful carpet of herbs spread around. Butterflies flutter silently over the flowers, bees and bumblebees hum.
a) forest; b) meadow; c) pond.
This is an amazing house, inhabited by numerous residents who have adapted to life in or near the water.
a) forest; b) meadow; c) pond.
4. The main plants of the forest.
5. The main plants of the meadow.
a) bushes; b) trees; c) herbs; d) algae.
6. Which natural community do these inhabitants belong to?
Blueberry, yarrow, quail, filly
a) forest; b) meadow; c) pond.
Arrowhead, beaver, reed, reel
a) forest; b) meadow; c) pond.
Weasel, euonymus, slug, thrush
a) forest; b) meadow; c) pond.
7. Who are called “live filters”?
a) crayfish; b) toothless; c) pike; d) newts
8. What are we talking about: from soil-to-plants, from plants into the bodies of animals, and with the remains of plants and animals back into the soil?
a) power circuit; b) the water cycle in nature; c) cycle of substances.
9. The main participant in the cycle of substances?
a) mushrooms; b) animals; c) bacteria; d) plants.
10. Helps bacteria in the circulation of substances.
a) moles; b) mushrooms; c) leeches; d) beetles.
