poison oak
The answer to this is not based on where the animal lives but on the type of animal. Animals that lay eggs have fewer extraembryonic membranes than placental mammals...there are mammals in the ocean as well as on land.
Mammals are considered amniotes because they share a common ancestor with reptiles and birds, which do produce amniotic eggs. While most mammals do not lay eggs, they still develop within an amniotic sac in the uterus. The presence of extraembryonic membranes, such as the amnion, allantois, and chorion, during embryonic development in mammals is a key characteristic that aligns them with other amniotes.
Both rods and cones are light receptors. Rods are connected many to onr neuron, and are good for detecting low-light and movement, but not color. Cones are one to a neuron and detect color. Both are present in most if not all mammals and avians.
Well, there's different parts of the female avian's reproductive anatomy that the egg is developed. The whole entire thing is called the reproductive tract, but not the uterine tract because birds do not have a uterus like mammals do.Fertilization starts at the Infidibulum, and the first part of the tract that makes the chalazae, which is the first protective secretion around the ovum.At the Magnum, the bulk of the egg white is produced.At the Isthmus, soft shell membranes are produced to surround the secretions and ovum.Next is the Shell Gland, where calcium (or Calcareous) secretions develop and deposit to create the hard shell of the egg.At the Vagina, the egg is expelled to the outside world.The fertilised egg (zygote) develops into an embryo (and later, a foetus) in the uterus, which is the largest internal female organ.
there are no cold blooded mammals no there are no cold blooded mammals
because dolphin is mammals
An amnion is the innermost membrane of the fetal membranes of reptiles, birds and mammals.
Land Mammals
whiskers
Many birds, reptiles, and mammals have nictitating membranes on their eyes. These membranes are transparent and can blink while leaving the eyes open.
The answer to this is not based on where the animal lives but on the type of animal. Animals that lay eggs have fewer extraembryonic membranes than placental mammals...there are mammals in the ocean as well as on land.
Not in the same sense as, say, mammals, but their antennae are very sensitive to scents.
Vipers have a line of heat sensitive pits, which detect Infra Red radiation given off by mammals. (their primary food source)
No, poison arrow frogs are not mammals; they are amphibians. Specifically, they belong to the family Dendrobatidae and are known for their bright colors and toxic skin secretions. Unlike mammals, they lay eggs in water and undergo metamorphosis from tadpoles to adult frogs.
Platypuses are unusual in that they are semi-aquatic mammals with strong claws. Platypuses have claws for digging. These claws have retractable membranes between them. The membranes help when they are swimming, and they are retracted when the platypus is digging its burrow for shelter.
Protective membranes in mammals, such as the meninges surrounding the brain and spinal cord, serve to shield the central nervous system from physical injury and infection. They also help maintain the chemical environment necessary for proper neuronal function. Additionally, these membranes provide a barrier against pathogens while allowing for the exchange of essential nutrients and waste products. Overall, they play a critical role in protecting vital neurological structures while supporting their physiological needs.
Monotremes lay amniotic eggs. Monotremes include just the platypus, the short-beaked echidna and the long-beaked echidna.There are two mammals that lay amniotic eggs. The two mammals that lay amniotic eggs are echidna and platypus.