Answer:
True
Explanation:
Cardiac muscle cells appear striated. However, they are involuntary, unlike skeletal muscle cells, because they contract outside of human control. For example, you do not have to think about contracting your heart muscles as the already contract for you. On the other hand, skeletal muscle cells are controlled by humans as they decide which body movement to perform, such as walking or pointing.
<span>Since you left off the choices, I have to just present the facts of what occurs first in the nerve impusle. The first thing that will is happen is the sodium ios will move to the inside of the nueron. The second step is the potassium ions will move to the inside of the neuron. After those move into the nueron, calcium will then move into the nueron. Both the sodium and potassium have 1 postive charge. While the calcium ion has 2 positive charges. </span>
They break down organic matter into nutrients for other organisms.
<h3><u>What is the role of decomposers in ecosystem?</u></h3>
Saprophytes like fungus and bacteria are decomposers. They rely entirely on the dead and decomposing organic debris to survive. Decomposers are crucial to the ecology because they assist in recycling nutrients so that plants may utilise them again.
The function of a decomposer in the ecosystem is as follows:
- By disintegrating dead plants and animals, they first serve as a purifying force for the environment.
- They aid in the nutrient recycling.
- By allowing the dead to decay, they provide room in the biosphere for new life.
- For the benefit of reuse by producers like crop plants, they assist in reintroducing the various elements to water, soil, and air.
To view more questions about ecosystem, refer to:
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An animals niche is its functional role in its ecosystem
