Answer:
1. 20 units
2. 4 units
Explanation:
In an ecosystem, energy is transferred from one organism occupying a trophic level to another as they feed on one another. The amount of energy that is being transferred as the chain progresses is called ECOLOGICAL EFFICIENCY. According to this question, the ecological efficiency at each trophic level of the ecosystem is 20%. This means that about 20% of energy units will be transferred to the next trophic level.
If the green plants of the ecosystem capture 100 units of energy, the amount of energy that will be available to support herbivores (plant eaters) is: 20% × 100units i.e. 20/100 × 100 = 20 units.
Also, the amount of energy that will be available to support carnivores subsequently will be 20% of 20 units i.e. 20/100 × 20 = 4 units.
Answer:
Nonvascular Seedless Plants. Nonvascular seedless plants, as their name implies, lack vascular tissue. Vascular tissue is specialized tissue that transports water, nutrients, and food in plants. As they lack vascular tissue, they also do not have true roots, stems, or leaves.
The prime mover of hip extension is the <u>gluteus maximus</u>
Explanation:
Hip extension refers to the act of lengthening, opening the front part of the hip. These positions cause the lengthening of the hip extensors.
The prime mover of the hip lengthening process or the major extensor muscle is gluteus maximus muscle which is present in the buttocks and is also one of the strongest muscles of the human body.
Connected with other bones such as coccyx, it helps in the movement of thighs and the hip and responsible for our sitting.
Buyer's remorse, a mild form of <u>cognitive dissonance</u>, is the internal conflict that arises from an inconsistency (disharmony) between competing beliefs, or between beliefs and behavior.
<u>Explanation:</u>
In the psychology field, the occurrence when a person retains two or more contradictory views, ideas, or values, or takes part in a behavior that runs counter to one of these three, and thereby encounters psychological stress is understood as "cognitive dissonance".
For instance, when humans smoke (behavior) and realize that smoking causes cancer (cognition), thus they are considered in a cognitive dissonance situation. It is used as a concentration on more positive beliefs which outweigh dissonant ideology or behaviour.
An INHIBITORY Signal is sent between neurons when (A)Na+ rushes into the neuron.
Explanation:
- When one spot of membrane supports an action potential, lots of \text {Na}^+Na+start text, N, a, end text, start superscript, plus, end superscript ions hurry into the cell by that spot.
- These ions radiated out sideways into the cell and can depolarize a nearby spot of membrane, stimulating the hole of voltage-gated sodium channels and causing the nearby spot to support its action potential.
- The action potential can only move in one direction – from the cell body towards the axon terminal – because a spot of membrane that has just experienced one action potential is in a “refractory period” and cannot withstand another.
