In molluscs, the ____________ overlies the visceral mass and is responsible for secreting the shell.
Blog
“Protostome” refers to animals whose blastopore develops int…
“Protostome” refers to animals whose blastopore develops into a(n)
In Cnidaria, the nervious system is called a nerve _________…
In Cnidaria, the nervious system is called a nerve _______________.
Nematodes have a tube-within-a -tube body plan .
Nematodes have a tube-within-a -tube body plan .
A species that has separate male & female sexes is referred…
A species that has separate male & female sexes is referred to as
Roundworms have incomplete digestive systems.
Roundworms have incomplete digestive systems.
A Planaria is a member of which phylum?
A Planaria is a member of which phylum?
The hard substance deposited by the coral animals is _______…
The hard substance deposited by the coral animals is ______________.
What is the term that refers to animals that have no true in…
What is the term that refers to animals that have no true internal body cavity?
Which of these statements is the best explanation of what ha…
Which of these statements is the best explanation of what happens in the photoelectric effect experiment?