Answer:
fossil species- must be old relative to the time of origin of the extant clade.
Single-celled microorganisms that can exist either as independent (free-living) organisms or as parasites (dependent on another organism for life). The plural of bacterium
Because of their relatively simple genetic structure when compared to other organisms. Not to mention, they breed in extremely high numbers which is great for scientists looking to do many trials, as most are. Their life cycle is also very short which means we can observe their entire life span and witness the effects of testing at all stages.
Answer:
What are the two main types of cells?
- Prokaryotic
- Eukaryotic
What is the difference between these cells?
- Prokaryotic (no nucleus)
- Eukaryotic (contains a nucleus)
Draw and label an animal cell.
Pic included below
Draw and label a plant cell.
Pic included below
Explanation:
I hope this helps :)
