How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what ways do these differences reflect specific adaptations for each animal to its unique lifestyle?

Bivalve- Wedge shaped foot

Snail- Large and flat foot

Cephalopod- Foot is modified into siphon.

Explanation:

Molluscs are predominantly marine animals with a soft body,however,they are known to inhibit fresh water as well as terrestrial habitat.

They possess a *muscular foot*,which is used for *locomotion and anchorage*,they vary in shape and function depending on the type of mollusc.

MODIFICATION OF FOOT IN MOLLUSCS:

Bivalve- Foot is usually wedge shaped

Snail- Foot is large and flat

Cephalopod: Foot is modified int a siphon( a tube-like organ)

ADAPTATIONS OF FOOT IN MOLLUSCS

1)Bivalves have pointed retractable foot(wedge foot) that protrudes from the wheel and is adapted for *moving or burrowing*.

2)Snail have a mucus-laden muscular foot adaptation,that reflexes and contracts allowing movement(*crawling*) in water and terrestrial habitats

3)The foot of cephalopod is adapted for *moving* about by a kind of jet propulsion in water.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

it's c. (to reduce the greenhouse effect/carbon gasses)