1 you run out of fuel 2 it takes a long time 3 it’s hard to get back 4 the conditions are constantly changing making it harder to predict what could happen. Look at Apollo 12 as a example
Three ways that humans have cut and frayed the woven tapestry of earths
biodiversity:
1.
Landscaping.
By landscaping, living things such as trees are eliminated to make way for the
construction of buildings. And thus, disrupting the ecosystem.
2.
Adding cement
to the ocean to increase the land surface area by excavating soil from the
maintains.
3.
Cutting of
trees.
Codons are three base sequences that specify the addition of a single amino acid. How do eukaryotic and prokaryotic codons compare?<span>
Answer: Codons are a nearly universal language among all organisms</span>
The atria of the heart merely need to allow blood to flow into the ventricle, and therefore aren't very muscular.
The ventricles of the heart need to actually pump blood to the rest of the body, whether to the lungs or the the rest of the body.
