Free Special Ed Worksheets Water Cycle – Students are taught about the life cycles of different creatures. For example, a butterfly’s life cycle can be compared to the life cycle of a shark. Students can also learn more about the life cycle and habits of amphibians. This worksheet can help students learn how animals live. Students can complete the worksheet independently and as a class.
The life cycle of a human
The human life cycle begins at fertilization when the egg cell of a woman fuses with a sperm cell of a man. On the sixth day, the single cell divides into a series of smaller ones that burrow into the mother’s womb. These cells begin to form three layers and then bend into an embryo. They also start to differentiate and create the fetal nervous and circulatory systems.
During this period, the human brain and body undergo many changes. Although some differences exist between humans and apes, the basic life cycle of both is the same. Apes, on the other hand, have a more erect body that allows them to show off their mobile hands. The food we eat supports a host of changes in the human body and brain after conception.
A human life cycle is structured around a series of developmental stages and age groups. It also includes an infancy period. The average life span of a human is about seventy to eighty years, but this can vary widely depending on the health of the individual.
The life cycle of a butterfly
The Life cycle of a butterfly begins with the butterfly’s egg. This egg contains the nutrients the caterpillar needs to survive. Most butterflies lay eggs on leaves. The eggs are small and may be round, oval, or cylindrical in shape. Monarch butterflies lay eggs on the undersides of plant leaves. They may be smooth or wrinkled. Within a few weeks, the eggs will hatch.
Once the butterfly has emerged from the pupa, it pumps its blood into its wings. After a few hours, the wings will fully develop and the butterfly will begin to fly. Once the wings have grown, the butterfly will search for food and a mate. After finding a mate, the butterfly will lay eggs on a leaf.
The adult stage is the next stage. The butterfly lays eggs in spring, summer, and fall. A large number of eggs can be laid by a female butterfly at once. Although the eggs are small, they can be very large. The caterpillar, also known as the larva, develops from the egg. During this time, it eats continuously and sheds its skin four or five times. It stores food for the adult butterflies.
Sharks live a long life
Sharks live a very long life span. Sharks can live up to 15 years. Most sharks are born in coastal areas and remain close to the area where they were born until they are fully grown. During this time, sharks grow, mature, and reproduce. Two claspers allow sharks to grasp onto females and insert sperm.
The eggs and sperm are incubated by female sharks for several months before they reach full term. The mother keeps the young sharks inside for about a year before they are born. Some species of sharks exhibit cannibalism, where the first pup is born alive and eats other eggs or pups. The gestation period of these ovoviviparous species varies, but it is often several months to two years. Some species are also known to reproduce through asexual reproduction.
Sharks are extremely sensitive to sound waves and have exceptional hearing. Their two sets of dorsal fins are located on either side of their heads. The lateral line system is made up of narrow canals filled with water that are attached to nerves that transmit signals to the brain.
Life cycle of an amphibian
Most amphibians have a complex life cycle, starting as a larva and ending as an adult. Hormones and the environment control these life cycles. Thyroid hormones and corticosteroids produced by interrenal glands are the primary morphogens in amphibians and are dependent on input from the hypothalamus and pituitary glands. Ultimately, the hypothalamus regulates the activity of both the thyroid gland and the pituitary gland.
Amphibians have unique life cycles and a unique ability to reproduce in two environments – on land and in water. A frog’s life cycle begins with sexual reproduction. This is when the male lures the egg-carrying women to mate. The females release their eggs into water, where the males fertilize with sperm. External fertilization is the most common method of reproduction for amphibians.
Many species of frogs lay eggs in calm water which protects them against predators. Some species, however, stay with the eggs to care. The eggs become tadpoles once they are fertilized. The tadpoles hatch within one to three weeks.
Gallery of Free Special Ed Worksheets Water Cycle
