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3 years ago

What is likely to happen to the ecosystem pictured below after a period of time?

Biology

2 answers:

Arlecino [84]3 years ago

5 0

Your answer should be C hope this helped :-)

Darya [45]3 years ago

5 0

Correct answer: C). The ecosystem will undergo primary succession followed by secondary succession

Primary succession is defined as the type of biological disturbance, which takes place in an environment, which is devoid of vegetation or other organism lacking soil as a result of a volcanic eruption or the flow of lava etc.

Primary succession is common after a volcanic eruption, as it starts from the bare rock, mosses, and lichens, which are pioneer producers being colonizing the land, which is further followed by the secondary succession.

Secondary succession refers to the changes that caused a change in vegetation, which occur due to forest fire, human alteration or due to a hurricane.

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How does eutrophication cause fish to die

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2 years ago

Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). Determine is there is a change in either

aleksandrvk [35]

Answer:

Change in velocity: yes

Change in acceleration: no

Explanation:

The diagram of the problem is missing: find it in attachment.

In the diagram, there are represented:

- The velocity of the car, as a vector labelled with V

- The acceleration of the car, as a vector labelled with A

The directions of the vector represent the direction of the velocity and the acceleration, while the length of the arrows represent the magnitude of the two quantities.

We observe that:

- For the velocity, the direction is always to the right; however, the length of the arrow decreases, so the magnitude of the velocity keeps decreasing

- For the acceleration, the direction is always to the left; and the length of the arrow remains constant, therefore the magnitude of the acceleration does not change.

This means that the car is moving to the right, but it is slowing down, since the direction of the acceleration is opposite to the direction of the velocity.

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3 years ago

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What are the steps in filament theory

Inessa [10]

Answer and Explanation:

The steps of the sliding filament theory are:

Muscle activation: breakdown of energy (ATP) by myosin.

Before contraction begins, myosin is only associated with a molecule of energy (ATP), which myosin breaks down into its component molecules (ADP + P) causing myosin to change shape.

Muscle contraction: cross-bridge formation

The shape change allows myosin to bind an adjacent actin, creating a cross-bridge.

Recharging: power (pulling) stroke

The cross-bridge formation causes myosin to release ADP+P, change shape, and to pull (slide) actin closer to the center of the myosin molecule.

Relaxaction: cross-bridge detachment

The completion of the pulling stroke further changes the shape of myosin. This allows myosin and ATP to bind, which causes myosin to release actin, destroying the cross-bridge. The cycle is now ready to begin again.

The repeated cycling through these steps generates force (i.e., step 2: cross-bridge formation) and changes in muscle length (i.e., step 3: power stroke), which are necessary to muscle contraction.

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kolezko [41]

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