Cell Cycle Reading Worksheet – 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 will help students understand how animals live. The worksheet can be completed by students individually or in a group.
Life cycle of a human
Fertilization is the moment when an egg cell from a woman merges with a male sperm cell. This begins the human life cycle. 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.
The human body and brain undergo a number of changes during this time. While there are some differences between humans and apes in their lives, they all follow the same basic cycle. 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. A human’s average life expectancy is approximately seventy-eighty years. However, this can vary depending on their health.
The life cycle of a butterfly
The Life cycle of a butterfly begins with the butterfly’s egg. The caterpillar’s needs are met by the egg. 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 can be either smooth or wrinkled. The eggs hatch within a few weeks.
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 next stage is the adult stage. The butterfly lays eggs in spring, summer, and fall. A large number of eggs can be laid by a female butterfly at once. The eggs may be small. The egg is the basis for the development of the caterpillar (also known as the larva). It eats continuously during this period and sheds its skin up to five times. It stores food for the adult butterflies.
Sharks live a long life
Sharks have an extremely long life cycle. Sharks can live up to 15 years. Sharks are most commonly born near the coast and stay close to their birthplace until they reach adulthood. Sharks mature, reproduce, and grow during this period. Two claspers allow sharks to grasp onto females and insert sperm.
Female sharks incubate the eggs and sperm for a period of several months until they reach full term. The young sharks remain inside the mother for a year and a half before they are born alive. Cannibalism is a behavior in which a shark’s first pup is alive and eats other pups or eggs. These ovoviviparous species have a variable gestation period, which can vary from several months to up to two years. Some species are also known to reproduce through asexual reproduction.
Sharks are extremely sensitive to sound waves and have exceptional hearing. The dorsal fins on their heads are located on either side. Their lateral line system consists of thin canals filled with water and is attached to nerves that send signals to the brain.
Life cycle of an amphibian
The life cycle of most amphibians is complex, with a larva becoming an adult and then a larva becoming a larva. Hormones and the environment control these life cycles. The primary morphogens of amphibians are thyroid hormones and corticosteroids, which are produced by interrenal cells. They are dependent on inputs from the hypothalamus as well as the pituitary and pituitary. 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 then release their eggs into the water where the males fertilize them with sperm. Most species of amphibians reproduce by external fertilization.
Many species of frogs lay eggs in calm water which protects them against predators. Some species, however, stay with the eggs to care. Once fertilized, the eggs begin to split into more cells, taking on the form of a tadpole. Within one to three weeks, the tadpoles are ready for hatching.
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