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Define Mitosis
Cellular division
Define Gestation Period
The length of time between the fertilization of an egg cell and birth of an animal
Define Metamorphosis
A developmental process where the form of the body changes as an animal goes from an egg to an adult
What is the Genetic material also known as?
DNA
What is one example of External Fertilization
A male frog will release sperm cells above them, leading to fertilization
Define Sexual Reproduction
The genetic material from two different cells produce an offspring
Define Fertilization
The joining of an egg cell with a sperm cell
Define Zygote
The new cell that is formed after an egg cell is fertilized
Define Internal Fertilization
Fertilization that occurs inside the body of an animal
Define External Fertilization
fertilization that occurs outside of the body
What are some animals that could be an example of Internal Fertilization?
Earthworms, Spiders, Insects, Reptiles, Birds, Mammals
What is one benefits of internal fertilization?
Ensures that an embryo (developing offspring) is protected and nourished until it leaves the body
What is one benefits of internal fertilization?
Increases the chance that it will survive, grow up, and reproduce
What is one example of External Fertilization
A female frog will lay eggs under water
What is the most well known male animal that gives birth?
Females deposit eggs into pouch of males
What are some animals that reproduce using external fertilization
Jellyfish, Clams, Sea Urchins, Sea stars, Several types of fish, Amphibians
After Fertilization what begins to happen
The zygote begins to develop into an embryo
This occurs through mitosis
What are two things an devolping embryo needs?
Nourishment and Protection
What is an elephants Gestation Period?
600 days
What is the Gestation Period of a mouse?
21 days
What are the four phases of Metamorphosis
Phase 1: Egg
Phase 2: Larva: pre-adult phase where newly hatched animal grows and develops
Phase 3: Pupa: Inactive phase where larva transforms into adult
Phase 4: Adult
What does the egg need to have that most animals going through internal development already have?
A way for the embryo to be nourished, and A yolk provides the embryo with food
What are some animals that are involved in Internal Development?
Snakes, different species of fish, and some insects (cockroaches, beetles, etc.)
What does the egg need to have that most animals going through internal development already have?
A way for the embryo to be nourished, and A yolk provides the embryo with food
What are two examples of Mitosis?
Two daughter cells are created from one parent cell, and Each daughter cell gets DNA from parent cell