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Do sponges fertilize their own eggs?
Yes, because sponges are hermaphrodites
What advantage does the earthworm gain by fertilizing the eggs of another earthworm rather than its own eggs?
They fertilize other's eggs, rather than their eggs because they really really SUCK !!
Why might a tape worm produce so many eggs?
Most tapeworms have both male and female reproductive organs to reproduce and fertilize there own eggs.
Why do worms fertilize their own eggs?
They would prefer to have another worm do it for them but if there isn't one around at the time they will do the job themselves.
Are sponges cnidarians?
No. Sponges have their own phylum called Porifera.
Will a single bird's eggs ever hatch?
One without a mate? No, the egg needs to be fertilized or the egg would never hatch. Yes, female birds lay eggs on their own but they still need a mate to fertilize the eggs.
How does a bird fertilize an egg?
Sometimes, the egg will have nothing in it. Like others will have yoke, which becomes a chick and then hatches. This happens because the birds are gonna lay the egg no matter what and when the egg was not fertilized by a male bird it just stays empty. The yolk was there to feed and hold a bird that would have been in it.
Are sponges molluscs?
No sponges arent mollusks. Mullusks are in their own phylum 'mollusca' and spongers are a part of their own phylum called 'porifera'
How much time does the baby eel spend with its parents?
None, or next to none. Fish as a rule aren't big on parenting. Most will simply lay and fertilize their eggs and then they're done. A select few will guard their eggs, but once the eggs hatch, the baby fish is on its own.
Do sea sponges make there own food?
No, sea sponges can not make their own food. They obtain their nutrition from the food particles in the water. Sponges primarily eat bacteria, phytoplankton, and other small food bits out of the water.
Living things that can NOT make their own food?
Sponges
Is a sea sponge a mollusk or an arthropod?
Neither, sponges have their own phylum separate from both of those, called Porifera ('pore carriers').
