Mammals
Name a mammal.
0-1 month
newborn
cells become
tissue
an organ that provides oxygen and nutrients to the growing embryo/fetus
placenta
an egg is a cell that can develop into a new __________ after fertilization
mammal
Humans are ____________________.
mammals
2 months-1 year
infant
tissues become
organs
connects the growing fetus/embryo to the mother's placenta
umbilical cord
All living things have ________________
cells
Name one of the characteristics of a mammal.
1 year - 3 years
toddler
organs become
organ systems
the female organ where the fertilized egg develops and grows into an embro/fetus
uterus
the name of the process that happens when a sperm enters and egg in a mammals body
fertilization
Name one of the characteristics of a mammal.
4 years-12 years
child
organ systems become
the human body
a fluid-filled sac that contains and protects the embryo/fetus
amniotic sac
Reproduction is the process where ________ continue their species
organisms
Name one of the characteristics of a mammal
13 years-19 years
teenager
a mammal in the later stages of development (8 weeks-birth)
fetus
a mammal in the early stages of development (fertilization to 8 weeks)
embryo
Ms. Collins is in what stage of human development
adult/senior citizen