What are the stages of life cycle in mammals?
The four stages of the life cycle of an animal are birth, growth, reproduction and death.
What are the three stages of mammal life?
These animals have three stages – before birth, young and adult.
What is an animal life cycles?
Birth, growth, reproduction and death represent the four stages of the life cycle of all animals. Although these stages are common to all animals, they vary significantly among species.
What is the life cycle of an organism?
A life cycle is defined as the developmental stages that occur during an organism’s lifetime. In general, plants and animals go through three basic stages in their life cycles, starting as a fertilized egg or seed, developing into an immature juvenile, and then finally transforming into an adult.
How do most animals begin the life cycle?
Most animal species begin life as a single egg cell that is then fertilised by a sperm cell. The growth process varies in speed depending on the species as some animals are born in less than a week of conception, where others can be born nearly two years afterwards.
What life cycles are typical for animals?
The life-cycle of an animal, includes all of the stages from the end of the last generation to the beginning of the next. Life-cycles vary in time depending on the species of animal, and can be as short as just a few weeks for insects, to up to 200 years for sea urchins.
What are the stages of animal life cycle?
The four stages of the life cycle of an animal are birth, growth, reproduction and death. All animal species go through these stages, but they manifest differently across the animal kingdom.
Do all animals have a life cycle?
All animals generally have a life cycle. The animal life cycle begins with a fertilized egg. The fertilized egg develops into an embryo. The embryo becomes an immature individual. The immature individual becomes an adult.