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What else can I help you with?
Why fish eggs do not have thick hard shells?
Land dwelling animal's eggs have shells (hard or soft) to keep them from drying out. Fish eggs don't need shells because being in water they won't dry out.
Do cockle shells lay eggs?
they could if they wanted to. I guess.
What special type of egg do reptiles have?
Reptile eggs are soft-shelled so that the babies can break out of the shells. Bird eggs are hard-shelled, because baby birds use their beaks to crack the shells of their eggs, but since reptiles don't have beaks to use to break their shells, their eggs have to be soft-shelled.
Why are some animals born in eggs?
SOme animals are born in eggs usually for protection. It is because if they were born without eggs, they would not be able to survive. SOmetimes it is because they hatch under water or in the sand.
Why are not all animals oviparous?
Oviparous animals are animals that reproduce by laying eggs. This is how most fish, amphibians, reptiles, insects, and arachnids reproduce. All birds and monotremes also reproduce like this. Most animals that live on land lay eggs that are protected by hard shells. They fertilize their eggs internally. Water-dwelling animals like fish and amphibians lay eggs that have not been fertilized yet. Then the males lay sperm on top of the eggs, which is called external fertilization. No mammals except for monotremes reproduce like this. Instead, they are viviparous. Fish, amphibians and reptiles that are not oviparous are oviviparous. This means that the eggs hatch while still inside the mother's body.
What kinds of animals develop from eggs?
reptiles
What kinds of animals whose lay with egg?
birds lay eggs
Does turtles lay eggs with shells?
It lay eggs with shells in the sands
Do amphibians have moist skin and lay eggs without shells?
Yes, but they still have shells. Their shells are just a moist material instead of a hard one.
Do the fertilized eggs of placental mammals have shells?
No, the fertilized eggs in mammals are always without shell and so in the case of placental mammals.
Do birds eggs have soft shells?
No they do not have soft shells
Do penguins lay eggs with hard shells?
Yes. Penguins are birds, and birds reproduce by laying eggs with hard shells. This is different from the eggs of reptiles and monotremes, which have leathery shells.
Do amphibians lay eggs without shells?
No hard outer coating. Although they do have a jelly coating for minimal protection. Some eggs are also toxic.
Are scallops born with shells?
Scallops are not born. They hatch from eggs. Their eggs don't have shells and neither do the newly hatched scallops.
Do frogs eggs have shells?
no
Do all the eggs have shells?
No
Do all eggs have shells?
No, there are many different sorts of "eggs" that are covered with gel, mucus, or some other sort of covering. Frog eggs and fish eggs such as caviar are examples of eggs that do not have shells.
