All
amphibians
spend part of their lives in water and part on land, which is how they earned their name—“amphibian” comes from a Greek word meaning “double life.” These animals are born with gills, and while some outgrow them as they transform into adults, others retain them for their entire lives.
Which animals do not have hearts?
There are also numerous animals with no hearts at all, including
starfish, sea cucumbers and coral
. Jellyfish can grow quite large, but they also don't have hearts. Or brains. Or central nervous systems.
Why do frogs have a double lifestyle?
Frogs are said to have two lives
because they begin their lives in a completely different form than they end them
.
What animals have unique life cycles?
The life cycle of an organism refers to the sequence of developmental stages that it passes through on its way to adulthood.
Mammals, reptiles, amphibians, birds, fish, insects and other invertebrates–
they each have their own unique way of reproducing life.
Why are amphibians called double life?
Amphibians are said to live a double life
because they often live in water and on land at different stages of their life
.
Why are frog lungs poorly developed?
Frogs do not have ribs nor
a diaphragm, which in humans helps serve in expand the chest and thereby decreasing the pressure in the lungs allowing outside air to flow in. … This is because the lungs, which only adults have, are poorly developed.
Why are frogs said to be cold blooded?
Frogs belong to a group of animals called amphibians. … Frogs are cold-blooded which means that
their bodies are the same temperature as the air or water around them
. When they are cold they will lay in the sun to warm up and when they get too warm they will go into the water to cool their bodies off.
What animal has 800 stomachs?
| Etruscan shrew | Phylum: Chordata | Class: Mammalia | Order: Eulipotyphla | Family: Soricidae |
|---|
What animal has 32 brains?
2.
Leeches
have 32 brains. A leech's internal structure is divided into 32 separate segments, and each of these segments has its own brain. In addition to that, every leech has nine pairs of testes — but that's another post for another day.
What animal has no blood?
Flatworms, nematodes, and cnidarians
(jellyfish, sea anemones, and corals) do not have a circulatory system and thus do not have blood. Their body cavity has no lining or fluid within it. They obtain nutrients and oxygen directly from the water that they live in.
Why do I keep finding frogs in my bathroom?
They say that tree frogs like
to climb trees and jump or drop onto the roof of a house
. The frogs apparently like the warmth of the shingles. Once they've warmed up, frogs start looking for a cooler area, and the toilet vent pipe is often the most convenient. Some fall into the pipe and end up in your toilet.
How high can a frog jump?
The frog jump has three simultaneous movements: the forelegs flex; the hind leg swings to a vertical position and locks; and the thigh swings in a horizontal plane. Some bull frogs, which average about 7 inches in length, have been recorded jumping as much
as 7 feet
— that's more than ten times their length!
Why are frogs so happy?
Q: Why are frogs always happy? A:
Because they eat whatever bugs them
.
Which animal does not go through metamorphosis after it is born?
Option A-
Earthworm
does not undergo metamorphosis. Starfish, moths and tunicates all undergo metamorphosis that is, they develop into the adult organisms after undergoing many developmental stages in their lives as young ones.
Do all animals have a life cycle?
Q: Do all animals follow the same life cycle? A:
No, but certain types of animals have similar life cycles
. For example, mammals and reptiles have very different life cycles from each other, but a horse and a cat have similar life cycles because they are both mammals.
Which animal has 3 stages of life cycle?
Life cycles with three stages
Some animals, such as
chickens, cockroaches and frogs
, have three stages in their life cycles. The three stages are the egg, the young and the adult. The young of some of these animals look different from the adults. During the egg stage, the chick develops inside the egg.
