star shaped!
echinoderms.
Sea stars do not lay eggs like birds or reptiles. Instead, they reproduce externally by releasing eggs and sperm into the water, where fertilization occurs. The resulting larvae develop into juvenile sea stars through a process called metamorphosis.
sea salt
No, the egg of a sea star is typically larger than a zygote. After fertilization, the zygote undergoes cleavage divisions, resulting in smaller cells before developing into a larva.
describe the skeliton of the star fish
endoskeleton i believe
Sea stars are capable of both types of reproduction.
Sea stars have a very short development period and are not reliant on yolk as a source of food for an extended period. Sea star eggs may develop into larvae or directly into sea stars depending on the species.
it really depends on the type of sea star you are wanting to know about. Common ones are about the size of your hand and are fairly light.
The blastula in sea star development is larger than the fertilized egg. As the zygote undergoes multiple rounds of cell division, it forms a hollow ball of cells called the blastula. This growth is accompanied by an increase in overall size.
A sea star is called a sea star simply because of where it lives (the sea) and what it looks like (a star), simple!