Answer:
Rough endoplasmic reticulum looks "rough" under a microscope because it has ribosomes attached to its surface.
Explanation:
Rough endoplasmic reticulum (RER) is a membrane organelle found in the cytoplasm of eukaryotic cells, which has ribosomes attached to its outer surface. Hence the name, rough endoplasmic reticulum. It has an important role in the synthesis of proteins. In ribosomes, the proteins are synthesized. The smooth endoplasmic reticulum (SER) does not contain ribosomes. It has an impotant role in the synthesis and storage of lipids. The proteins that are synthesized in the ribosomes are packaged into vesicles and transported to the Golgi apparatus by the rough endoplasmic reticulum. The Golgi apparatus which is located near the RER, modifies, transports and packages proteins for delivery to targeted destinations.
The possible answers are
<span>A.a drought reduces the toad population </span>
<span>B. an influx of soil nutrients results in increased grass growth </span>
C.a hawk species moves in that hunts toads
<span>D.the toad population increases after a warm, wet spring
The correct answer is D
The increase in numbers in the toad population after a warm and wet spring would mean that there are more toads that prey on the beetles and that they are limiting the beetle population by hunting them.</span>
Let's refer to the statements as A through F.
A. The diagram shows the ocean absorbing "90" and releasing "88". That means the ocean absorbs more than it releases (90 > 88), so acts as a "sink", a place where carbon is stored. (TRUE)
B. The dashed red arrow on the right labeled Fossil Fuel Combustion shows a transfer of carbon into the Atmosphere. (TRUE)
C. The diagram shows "Primary Production and Respiration" as coming from "Vegetation and Soils", so animals are not the sole contributors of CO₂ from respiration. (FALSE)
D. The blue arrows show exchange of atomospheric CO₂ with oceans and land. (TRUE)
E. While "Changing Land Use" contributes a net decrease of atmospheric CO₂, that is more than balanced by "Combustion and Industrial Processes." The net "Anthropogenic flux" appears to be positive into the Atmosphere. (FALSE)
F. The blue arrow into Vegetation and Soils is 120, the blue arrow out is 119, so soils take in more CO₂ by natural processes than they release. Likewise, "Changing Land Use" contributes a net increase in CO₂ in the soils and vegetation. Hence, soils do take in more than they release. (TRUE)
