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Eduardwww [97]
3 years ago
9

1. An example of a pioneer species is

Biology
1 answer:
lions [1.4K]3 years ago
8 0

Answer:

1. B (ferns)

2. A (glaciation)

3. B (the appearance of a particular organism)

4

i. C

ii. D

iii. B

iv. A

Explanation:

1. Pioneer species in succession refers to species that first colonize a barren land or rock. They include species that can adapt to the condition of the land and subsequently break it down for other organisms to grow. Pioneer species in primary succession include ferns, lichens etc.

2. Primary succession occurs as a result of effects or negative impacts on an area. Specifically, primary succession in an area of Alberta today occurs because of the effects of GLACIATION, which is the covering of land surface with ice.

3. The appearance of a particular organism such as pioneer species in an aquatic succession can be an indicator of primary succession.

4. * Humus is an organic component of soil that is produced from decomposed organisms.

* Primary succession is the process of changing an environment from bare rock and a few species to a complex community with many species.

* Pioneer species are simple and hardy plants that first colonize a barren ground or rock.

* Climax community is a stable community that results from the process of succession.

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Explain how chemiosmosis functions in the cell. Discuss the energy transfers and explain the role of ATP in this process.
Lyrx [107]

The energy for ATP synthesis comes from organic molecules (such as carbohydrates), or from sunlight, or from inorganic electron donors. We can classify organisms according to their source of energy and organic carbon:

<span><span>heterotrophs – get energy and organic carbon from metabolism of pre-existing organic compounds (food)</span><span>photoautotrophs – use energy from sunlight to make ATP and their own organic carbon compounds from carbon dioxide chemoautotrophs</span><span> – use energy from inorganic chemicals to make ATP and their own organic carbon compounds from carbon dioxide</span></span>

Metabolic pathways carry out reactions that capture energy from these various sources (organic compounds, sunlight or chemicals) and couple them to synthesis of ATP from ADP.

6 0
4 years ago
Read 2 more answers
Select the scenarios that describe an abiotic factor that is density independent. Select the TWO answers that are correct.
kotegsom [21]

Answer: Option B and C.

Heavy and continuous rains flood the land, submerging habitats.

c. Lightning strikes a tree and begins a fire that clears the land.

Explanation:

Heavy and continuous rains flood the land, submerging habitats.

Lightning strikes a tree and begins a fire that clears the land.

The above are example of density independent abiotic factors because rainfall and lightning affect the population size of the environment by decreasing it's population sizes.

Abiotic factors are the non living part of the environment and they include rain fail, temperature,lightning, humidity e.t.c.

Density independent abiotic factors are factors that decrease or increase the population size of the ecosystem.

Therefore, Heavy and continuous rains flood the land, submerging habitats.

cLightning strikes a tree and begins a fire that clears the land are density independent factor because they decrease the population size.

7 0
3 years ago
Random distribution is also known as predictable spacing. <br><br> true ot false?
Marat540 [252]

Random distribution is not the same predictable spacing. Hence, the correct answer would be False

In actual fact, random distribution can be said to be the direct opposite of predictable spacing.

For example, when a group of numbers is randomly distributed, each number has an equal chance of being located within the distribution. In predictable spacing, each number would have a predefined probability or an unequal chance of being located.

More about probability distribution can be found here:  brainly.com/question/795909

5 0
3 years ago
HELP QUIZ DUE TONIGHT!
pogonyaev

Answer:

I think the answer is A: putting a metal spoon in a mug of hot water

Explanation:

I hope this helps

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Dafna1 [17]

Answer:

Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.

Explanation:

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