Nitrogen 14 and nitrogen 15 differ because nitrogen 14 has 7 neurons and 7 protons. Nitrogen 15 has 8 neurons and 7 protons.
The Earth Policy Institute states that once the whole world shift entirely to compact fluorescent light bulbs, we would be able to shut down 270 coal-fired power plants. Also, the gasoline equivalent of the energy that would be saved by replacing a 100W incandescent bulb with a 24W CFL is enough to drive a Toyota Prius from New York to San Francisco. Therefore, the two-fold benefit of swapping your bulbs are 1) it can save a lot of energy, and 2) can save you a ton of money, as well.
The influx of calcium ions into the axon terminal triggers exocytosis.
Answer:
two guard cells
Explanation:
Stomata are the pores found on the surface of leaves and some stems. They are formed from two guard cells (bean-shaped cells) joined at their ends, forming a pore.
Answer:
The phylogenetic tree can be shown in the attachment.
Explanation:
A phylogenetic tree can be described as a diagram which depicts evolutionary histories among organisms of different species. The organisms which are more closely related are more closer to one another in a phylogenetic tree.
Human, chip, gorilla, orangutan all are greater apes whose complete DNA have been sequenced. The sequencing of their genomes showed that humans have the closest relationship with chimpanzees. Hence, scientists believe that humans might have evolved from the chimpanzees.