Astronomy can best be described as a "<span>a. study of objects beyond earths atmosphere", although the subject of astronomy can be much more complicated. </span>
Option 3
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A nucleotide consists of all of the following except a nitrogenous base. The are of course the main building blocks of genetic information in many life forms.
Answer:
cell wall) function:protects and holds the structure of the cell
X for plant cell
chloroplast) absorbs energy from sun through photosyn. to make nutrients
plant cell-x
cytoplasm) a gel like substance in which most of the cell's processes take place
x for plant&animal
ER) packages & transports proteins made by ribosome to the golgi apparatus
GA) transports proteins to their destined location throughout the cell
found in plant and animal cells
Mitch) converts energy in nutrients to usable energy
found in plant and animal cell
nucleus: stores and protects DNA
found in plant and animal cells
vacuole: stores food and water
found in plant and animal cells
HOPE THIS HELPS
Explanation:
<span>It is the biosphere, which includes all living organisms and ecosystems is the highest physical level of biological study.</span>