Answer:
d. Melting ice and expansion of heated water.
Explanation:
As the planet gets warmer, sea level rises.
The two major causes are melting of ice and expansion of seawater.
It is estimated that rising sea levels are caused
- One-third by melting of ice in Greenland and Antarctica
- One-third by melting of ice in mountains
- One-third by thermal expansion of the warmer water
a. is wrong. Increased precipitation comes largely from the oceans by the water cycle.
b. is wrong. Melting ice is responsible for only two-thirds of sea-level rise.
c. is wrong. Increased carbon dioxide levels increase the acidity of the water but have little effect on the volume.
Answer: Option D) Cells in multicellular organisms are specialized to perform certain functions.
Explanation:
Multicellular organisms include humans, reptiles, birds etc. While unicellular organisms include amoeba, paramecium etc
From the examples given, the cells of multicellular organisms are specialized in function in that:
- cells that perform similar functions are put together as tissues, organs or system e.g digestive system consists of the similar cells that help to break down food into pieces
On the other hand, unicellular organisms possess just one cell that do all the functions.
Thus, the difference between both is that cells in multicellular organisms are specialized to perform certain functions.
As prey increase predatory increase and as prey decrease due to the increase of predators. The number of predators will decrease due to the lack of foods.
<span>In the "all or none" law of muscle contraction, it states that when the stimulus applied exceeds threshold then the the nerve sending signals to a few muscle fibers will give a complete response; contraction. Graded response is dependent on how many motor units have been recruited. The more motor units, the greater the force in the contraction.</span>
The answer is going to be B .
