Answer:
d. secondary endosymbiosis.
Explanation:
- When a living cell acquires another organism that eventually becomes a part of this cell, this process is known as primary endosymbiosis.
- When an organism that has already undergone primary endosymbiosis engulfs another eukaryotic organism then this process is known as secondary endosymbiosis.
- Secondary endosymbiosis has been known to occur in plastids because of which they are surrounded by two membranes. This bilayer is present because one of the layers is the original outer membrane of the organism and the other membrane is that of the organism that has been engulfed.
C. Decreases; as the wave is building up and getting taller, it is also getting narrower.
<span>Mollusks are sometimes hard to classify because there are not a lot of characteristics they all share.
</span>True
Mollusks are not a very diverse group; there are very few body plans.
False
<span>Generally, mollusks have a soft body and most have a shell.
</span>True
<span>Gastropods and bivalves are types of arthropods.
</span>False
<span>Cephalopods are the smartest types of invertebrates.
</span>Lol that's sooo False
<span>Octopuses have been known to figure out latches and escape their tanks.
</span>True
<span>Snails and slugs are bivalves.
</span>False
Answer:
d is the correct answer
Explanation:
an ionic bond forms when positively charged metal ion attract to negatively charged ones
hope this helps !
