Although the thermosphere is considered part of Earth's atmosphere, the air density is so low we normally think of it as outer space The space shuttle and the International Space Station both orbit Earth within the thermosphere. Much of the Sun's UV and x-ray
radiation are also absorbed by this layer. The thermosphere gets hotter and expands or puffs up' Because of this the height of the
top of the thermosphere varies. The thermosphere has winds and tides that help move energy around Why is this important for NASA
engineers to know when designing future satellites?

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain

Describe how alleles and genes are related

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.