Answer:
Origin of Viruses. ... Small viruses started as runaway pieces of nucleic acid that originally came from living cells such as bacteria. Large viruses were once parasitic cells inside bigger host cells. Over time, genes needed to survive and reproduce outside host cells were lost.
Answer:
Olfactory sensory neurons (OSN).
Explanation:
Olfactory sensory neurons (OSN) are the sensory neurons that is responsible for vision. Photoreceptors and olfactory sensory neurons (OSN) are the two types of sensory neurons for vision. Both olfactory sensory neurons (OSN) and photoreceptors is responsible for the receiving of photons and enable us to see things. The right half of the visual field will travel in the left optic tract, while on the other hand, the stimuli from the left half of the visual field will pass through the right optic tract.
Answer:
20 cM
Explanation:
At the time of typing this answer, i was unable to submit the answer, so I created a document for it. The document can be found in the attached file below.
Answer:
Electromagnetic: Both:
1.Infrared Light 1.Transfers Energy 4.Speed dependent upon the medium 2.Transverse Wave they are travelling through. 3. 3.Can Be Reflected
2.Visible
Mechanical: 1.Requires a medium 2.Sound 3.Ocean Wave 4.Longitudinal Wave
Explanation:
Taste
Taste buds or taste receptor cells in the tongue allow a person to taste the different flavors of the food he or she eats. An average person has around 10,000 of these cells, which gets replaced every week or two. As a person gets older, cell replacement is much slower and some of these cells do not get replaced anymore. An older person may then have only about 5,000 working taste buds.
