Model 2 The Carbon Cycle Worksheet Answers – Students learn about the different life cycles of various creatures. A butterfly’s lifecycle can be compared with that of a shark. They can also learn about the life cycle of an amphibian. This worksheet will help students understand how animals live. The worksheet can be completed by students individually or in a group.
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. In this stage, they also begin to differentiate from one another and form the fetal nervous system and circulatory system.
The human body and brain undergo a number of changes during this time. Although some differences exist between humans and apes, the basic life cycle of both is the same. For example, humans develop an erect body and show off their movable hands, whereas apes develop great cognitive talents. The food we eat supports a host of changes in the human body and brain after conception.
The human life cycle is organized around a series 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 may be smooth or wrinkled. Within a few weeks, the eggs will hatch.
After the butterfly emerges from its pupa, it injects its blood into its wings. Within a few hours the wings will be fully developed and the butterfly can 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. The female butterfly lays a large number of eggs at one time. 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.
Life cycle of a shark
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. During this time, sharks grow, mature, and reproduce. Sharks have two claspers, which allow them to grab onto a female and insert sperm.
Female sharks incubate the eggs and sperm for a period of several months until 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 have excellent hearing and are able to detect incoming sound waves from their prey. The dorsal fins on their heads are located on either side. 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
The life cycle of most amphibians is complex, with a larva becoming an adult and then a larva becoming a larva. These life cycles are governed by hormones and the environment. 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. The hypothalamus controls the activity of the thyroid and pituitary glands.
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. However, some species stay with the eggs to care for them. The eggs become tadpoles once they are fertilized. The tadpoles hatch within one to three weeks.
Gallery of Model 2 The Carbon Cycle Worksheet Answers
