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4 years ago

What do the elements in Group 17 have in common?

Biology

2 answers:

aleksandrvk [35]4 years ago

8 0

They rarely tact with any other elements

gulaghasi [49]4 years ago

6 0

A. They tend to form ions with a -1 electric charge.

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Please help due tomorrow

Ivahew [28]

Answer No 1)

Decomposers are an important part of the food chain because they are the main organisms through which materials are recycled. Decomposers break down dead, decaying material so that the materials can be recycled into the Earth. From the Earth, the materials are taken by the plants as nutrients and the cycle continues again and again. Hence, decomposers are an important part of the food chain.

Answer No 2)

Fungi can be found in terrestrial ecosystems.

Snails can be found in terrestrial ecosystems such as a agricultural areas.

Earthworm can be found in terrestrial areas such as a garden.

Pill bug can be found in terrestrial ecosystem such as a forest.

Answer No 3)

Fungi are heterotrophic and have and gain nutrition mainly by absorbing organic compounds from the environment.

Snails usually feed on parts of plants such as a plants stem or roots. Some fungi might also consume fungi or mushrooms.

Earthworms feed on the decaying matter as they eat soil.

Pill bugs, primarily consume plant matter that is either decaying or is already dead and decomposed.

Answer No 4)

Fungi act as decomposers or saprotrophs and recycle nutrients in the ecosystem.

Snails will consume rotting vegetation like moist leaf litter and recycle the nutrients in them.

Earthworm feed on the organic waste in the soil. They break them large organic waste particles so that bacteria and fungi can feed on it and release these nutrients in the atmosphere.

Pill bugs are decomposers. They digest waste like scat as well as decaying matter from dead plants and animals, and then return the essential nutrients back into the soil.

Answer No 5)

Grass ⇒ Grasshopper ⇒ Snake ⇒ Hawk ⇒ Fungi

Thistle ⇒ snail ⇒ Seng Thrush ⇒ Hawk

Soil containing plant remains ⇒ earthworm ⇒ blackbird ⇒ hawk

Soil containing plant remains ⇒ pill bug ⇒ bird ⇒ hawk

6 0

4 years ago

How much energy would be available to the next levels of the food chain?

KengaRu [80]

Answer:

since only 10% is passed you multiple the number given by .10

Explanation:

so 35,000*.10=3500 which is the first blank and you multiply that by .10 to get 350 and thats the second blank, then do that again to get 35 and then again and you get 3.5

7 0

4 years ago

Question 1

sertanlavr [38]

Question 1
decrease coal consumption

question 2
coal

question 3
coal

question 4
wind

question 5
increased greenhouse gases

8 0

4 years ago

Read 2 more answers

Name three reasons that this area has a high rate of speciation and explain

taurus [48]

In the gradual speciation<span> model, species diverge slowly over time in small steps while in the punctuated equilibrium model, a new species diverges rapidly from the parent species. The two key influencing factors on the change in </span>speciation rate<span>are the environmental conditions and the population size.</span>

6 0

3 years ago

Read 2 more answers

Light intensity (%) O2 produced

kirill115 [55]

Answer:

By the process of photosynthesis, green plants synthesize carbohydrates or food (products) from carbon dioxide and water (reactants) with the help of chlorophyll and sunlight (energy).

Oxygen is produced as a byproduct of photosynthesis.

The rate of photosynthesis depends on various factors, one of which is light intensity.

The given experiment measures the effects of light intensity on the photosynthetic rate by recording the amount of oxygen produced.

Here, the photosynthetic rate is directly proportional to the intensity of the light used. However, it also follows the saturation kinetics i.e. after a certain point further increase in the light intensity causes no change in the photosynthetic rate.

From the given data, it is clear that the maximum rate of photosynthesis was achieved at 50% light intensity as the maximum amount of oxygen was produced at that point.

In addition, a further increase in light intensity (from 50% to 60%) did not increase the rate. This also shows that the maximum rate had already been achieved.

In contrast, a further increase in light intensity could damage the photo-systems which would result in a sharp decrease in photosynthetic rate.

4 0

4 years ago