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Biblioteka

S7- Plants: Section 4.0 Quiz

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Posljednje ažuriranje 5 months ago
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Pitanje 4
4.

A canola crop that is grown without irrigation yields 1120 kg of seeds per hectare. With irrigation a canola

crop yields approximately 10% more seeds per hectare. The yield per hectare is now ...

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Pitanje 1
1.

When growers and scientists work together to get more useful parts per plant, they are trying to increase ...

Pitanje 2
2.

An artificial plant environment is one in which all of the growing conditions can be controlled. The following

is an example of an artificial environment ...

Pitanje 3
3.

In order to make an artificial environment work without soil, plants are grown in a ...

Pitanje 5
5.

Spreading manure over cropland is a technique growers use to improve the yield of different crops. This

action adds this nutrient to the soil ...

Pitanje 6
6.

A group of organisms that all have similar traits and who’s offspring can reproduce are called a ...

Pitanje 7
7.

The special traits or characteristics that distinguish one organism from another is called a ...

Pitanje 8
8.

A plant that is selected because it is more resistant to disease is an example of ...

Pitanje 9
9.

Scientists can now change plants by going inside the plants cells and modifying some of it’s genetic

material. This process is part of a science called ...

Pitanje 10
10.

A very small section of a plant cell’s nucleus is called a ...

Pitanje 11
11.

The process which combines genetic material from one organism into another organism, to make a new

organism is called genetic ...

Pitanje 12
12.

Canola is an oilseed crop that is valued for its ...

Pitanje 13
13.

The breeding of super weeds may be happening with the Canola crop. This is suspected, because scientists believe the canola plant is cross-pollinating with ...

Pitanje 14
14.

Insects, fungi and weedy plants are the pests that cause the most damage to plants. Fungi and

bacteria cause ...

Pitanje 15
15.

Dandelions are super weeds because they had no natural controls when they were introduced to North

America from Europe. They were brought here to be used as a ...

Pitanje 16
16.

Canola is popular with insects, fungus and weeds. One such pest is wild oats. This pest causes damage because it ...

Pitanje 17
17.

Trying to get rid of certain pests can be a problem. If a non-native species is introduced to a certain area, without natural predators, it often becomes a pest. One such example was the introduction to North America from Europe of a plant that was used as a salad vegetable. It was ...

Pitanje 18
18.

Herbicides, insecticides and fungicides are used to control weeds, insects and fungus. The use of these pesticides caused another problem. They build up over time in the the food chain and get stored in organisms, just as food energy is stored. This process is called...

Pitanje 19
19.

Organic food is food that has been grown without the use of chemical fertilizers and chemical pesticides. To provide the needed nutrients to grow the plants, they use ...

Pitanje 20
20.

Biological control is one way to reduce the effect of pests on plants. To keep a pest’s numbers under control, these biological controls would likely be used ...

Pitanje 21
21.

Chemicals that are used as pesticides can wash off many plants and become poisonous in the soil. This is referred to as soil ...

Pitanje 22
22.

When we don’t investigate all of the possible factors and outcomes for our actions in the environment, these might occur ...

Pitanje 23
23.

Balancing the needs of humans and the needs of the environment is called ‘Environmental ...

Pitanje 24
24.

One of the effects of monoculture farming practices is that pests feeding on that crop have a large food

supply. Monoculture is also a farming practice that actually lowers ...

Pitanje 25
25.

Forestry practice can disrupt some predator-prey relationships. Logging roads actually help predators

find their prey, because the prey ...

Pitanje 26
26.

Using good quality seeds, removing weeds before the seeds mature and planting a variety of crops, instead of a monoculture, will reduce the need for ...

Pitanje 27
27.

Sustainable practices in the production of plants, such as crop rotation, have led to other benefits that were unintentional. One such benefit is ...