What are the four stages of natural selection for a sea turtle?

1. What are the stages of a sea turtle?
2. How many stages do sea turtles have?
3. What is the adaptation of a sea turtle?
4. What are the structural adaptations of a sea turtle?
5. What are the 4 factors of evolution?
6. What are the 4 main points of Darwin's theory of evolution?
7. What is selection in natural selection?
8. What is the life cycle of a tortoise?
9. What is the life cycle of a green sea turtle?
10. What is the life cycle of a hawksbill sea turtle?
11. How does a turtle reproduce?
12. What is the life cycle of a seahorse?
13. How old is the oldest sea turtle?

What are the stages of a sea turtle?

Turtles' life cycles progress from being an egg, hatchling or baby turtle, into being a juvenile, then to being an adult. Mothers bury their eggs in holes in the ground to protect them. Then the hatchlings learn how to survive alone, entering the juvenile phase.

How many stages do sea turtles have?

Discuss with the children the 4 basic stages of a sea turtle's life cycle: EGGS – The sea turtle lays her eggs at night. The female sea turtle leaves the ocean to dig a hole in the sand away from the edge of the water. In the nest, a female sea turtle lays about 100 eggs (on average).

What is the adaptation of a sea turtle?

Unlike their reptilian relatives, leatherbacks are able to maintain warm body temperatures in cold water by using a unique set of adaptations that allows them to both generate and retain body heat. These adaptations include large body size, changes in swimming activity and blood flow, and a thick layer of fat.

What are the structural adaptations of a sea turtle?

Structural Adaptations

Leatherback turtles have a very sleek carapace that allows them to glide throughout the water more effortlessly. Also, the carapace is leathery and has ridges which taper into a blunt point, which is very hydrodynamic.

What are the 4 factors of evolution?

Evolution is a consequence of the interaction of four factors: (1) the potential for a species to increase in number, (2) the genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for an environment's limited supply of the resources that individuals need in order to ...

What are the 4 main points of Darwin's theory of evolution?

The four key points of Darwin's Theory of Evolution are: individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.

What is selection in natural selection?

Natural selection is the process through which populations of living organisms adapt and change. ... Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.

What is the life cycle of a tortoise?

GROWTH IS SLOW IN THE WILD. AS A TORTOISE GROWS, BONE DEVELOPS UNDER THE LAYER OF SCUTES. BY THE TIME THE TORTOISE IS 5 YEARS OLD THE BONE IS WELL DEVELOPED AND THE SHELL IS HARD. TORTOISES MAY LIVE TO BE 60 TO 100 YEARS OLD.

What is the life cycle of a green sea turtle?

Green sea turtle eggs are buried in clutches of 75-200. After two months, the hatchlings make a mad dash for water, where they'll spend the rest of their lives. Green sea turtles don't reach adulthood for 10 years or more, but they can live up to 100 years.

What is the life cycle of a hawksbill sea turtle?

Lifespan & Reproduction

Although life expectancy remains unconfirmed, they are long-lived and estimated to live 50 to 60 years. Every 1 to 5 years, female hawksbill turtles return to nest on beaches in the general areas where they hatched decades earlier.

How does a turtle reproduce?

A sea turtle lays eggs into a nest dug in the sand. Once a site is chosen, the turtle uses her hind flippers to dig a vase-shaped hole about two feet deep, and then lays her eggs. ... A nesting female will lay multiple nests per nesting season.

What is the life cycle of a seahorse?

Like many animals, a seahorse's life cycle varies between individuals and species. But there are six general stages of development or steps that most seahorses pass through: adult, daily greeting, courtship, pregnancy, birth and a juvenile stage.

How old is the oldest sea turtle?

That year a paper was published following new research into the fossil, which revealed that Desmatochelys padilli is over 120 million years old, making it the oldest sea turtle in the world.