Hens are birds.
Most (but not all) reptiles, amphibians and fish lay eggs.
In addition, there are two types of egg-laying mammals, known as monotremes. The platypus and the echidna are monotremes.
Fish and amphibians lay eggs that do not have a shell. Land animals, including birds, reptiles, and turtles lay eggs that do have a hard shell.
Some examples of animals who live in (or have) shells include turtles, tortoises, hermit crabs, and snails.
Hope this helps!
Reptiles (snakes, turtles, lizard) amphibians (frogs) fish and the platypus and the echidna. Insects also lay eggs.
turtles
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.
they could if they wanted to. I guess.
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.
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.
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.
reptiles
birds lay eggs
It lay eggs with shells in the sands
Yes, but they still have shells. Their shells are just a moist material instead of a hard one.
No, the fertilized eggs in mammals are always without shell and so in the case of placental mammals.
No they do not have soft 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.
No hard outer coating. Although they do have a jelly coating for minimal protection. Some eggs are also toxic.
Scallops are not born. They hatch from eggs. Their eggs don't have shells and neither do the newly hatched scallops.
no
No
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.