A sailboat that is propelled by an outboard is considered A POWER DRIVEN MOTOR BOAT. Motor boats are powered by engines. Motor boat varies in size and types and these determine the types of equipment they are required by law to carry. Many motor boats are less than twenty six feet in length, therefore they come under class one.
Answer:
D
Explanation:
Key points:
- Cells have a variety of mechanisms to prevent mutations, or permanent changes in DNA sequence.
- During DNA synthesis, most DNA polymerases "check their work," fixing the majority of mispaired bases in a process called proofreading.
- Immediately after DNA synthesis, any remaining mispaired bases can be detected and replaced in a process called mismatch repair.
- If DNA gets damaged, it can be repaired by various mechanisms, including chemical reversal, excision repair, and double-stranded break repair.
that's from khan academy^
Answer:
what are your choices becasuse
Explanation:
there are types like oil pollution radioactive waste urban devlopement plastics
