C: Gametes is the term for sex cells
Answer: Biodiversity hotspots are home to nearly 20% of the world's population. Option B is most accurate.
Explanation:
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation.
Biodiversity hotspots host their diverse ecosystems on just 2.3% of the planet's surface, however, the area defined as hotspots covers a much larger proportion of the land, so much that it hosts about twenty percent of the world's population.
Enzymes are biological catalyst meaning they speed up reactions. They do this by lowering the activation energy which results in bond breaking much faster, leading to a quicker chemical reaction.
In conclusion, enzymes speed up a chemical reaction by lowering the activation energy, resulting in a faster rate of reaction as bonds break quicker.
Hope this helps even though its quite simplified! :)
Answer: <u>IONIC BONDING- </u>When a metallic atom reacts with a non metallic atom, then it forms an ionic bond. For example, Sodium (Na) is a metal that reacts with a non-metal Chlorine (Cl) forming Sodium-chloride (NaCl).
<u>COVALENT BONDING-</u> It is a chemical bonding that occurs when any two non-metallic atoms reacts with one another, by sharing one pair of electrons. For example, Carbon Dioxide (CO₂).
During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids. The sister chromatids line up at the equator, or center, of the cell. This is also known as the metaphase plate. The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides.