Answer:
b.the influence of humans on a natural system can have unpredictable negative impacts
Explanation:
The situation described best illustrated the fact that the disturbance of natural ecosystem by humans can have unpredictable negative impacts.
<em>Option c is incorrect because human alteration of the ecosystem needs to be continuously studied to avoid ecological disasters.</em>
<em>Option d is incorrect because alteration of the ecosystem does not always end up in the pollution of the ecosystem and loss of finite resources.</em>
<u>While human alteration of the natural ecosystem often have long term negative impacts, many of these impacts can not be predicted until they happen. This makes option b to be more complete than option a.</u>
The correct option is b.
People who maintain and look after the trees in the forest.
Intercellular communication involves an electrical charge moving along a cell membrane. These are communicated through electrical charges flowing in between the cells like in the synaptic gaps of neurons.
Explanation:
Cellular communications are essential for the cell to communicate and control the various cellular activities both within and outside the cell.
Explanation:
Intracellular communications are those which take place within a cell. These signaling pathways also referred transduction pathways are triggered by extracellular communication signals which transmit through biochemical interactions to the nucleus. Eg., action of cyclic AMP.
Intercellular communications is the transfer or communication of information in between cells. These signaling pathways are communicated directly and indirectly. . Eg., neuron transmission and hormone secretion
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On these images we see the low tide and the high tide.
Explanation:
On the two images we have the same place but with two contrasting views. On the picture on the left we see that the water level is higher and the boat is floating, while on the picture on the right we can see that the water level is lower and the boat is on dry land. This is actually a representation of low tide and high tide.
The high tide occurs twice in 24 hours, on roughly 12 hours. It is the process when the water level rises and comes further toward the land. The low tide also occurs twice in 24 hours, and also on every 12 hours. It is the process of retraction of the water toward the sea. These processes occur because of the gravitational pull of the Moon (primarily), and to a lesser extent of the Sun as well.
Algae living on a sloth is considered an example of mutualism because both of them benefit from each other.
Mutualism is one of the symbiotic relationships in which both the two species living together benefit in one way or another. A considerable example of such a relationship is between algae and a sloth.
The algae provide camouflage to the sloth and protect it from predators while the sloth provides shelter to the algae for its growth. The sloth also gets nutrition from algae which perform photosynthesis and synthesize food.
Another mutual relationship is observed between the aphids and ants. Aphids produce honeydew as a waste product of their diet which is consumed by ants. While ants protect the aphids from predators and parasites.
To know more about mutualism, refer to the following link:
brainly.com/question/94753
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