1. ANIMAL DEVELOPMENT

2. ANIMAL DEVELOPMENT WHAT IS THE TERM FOR THE FUSION OF GAMETES?
FERTILIZATION
IS AN EGG CELL STILL JUST AN EGG CELL WHEN A SPERM HAS FERTILIZED IT?
FERTILIZED EGG = EMBRYO

3. ANIMAL DEVELOPMENT
HOW DOES THAT SINGLE CELLED EMBRYO, TURN INTO A MULTI-CELLULAR ANIMAL?
YOU NEED TO GO FROM ONE CELL TO MANY CELLS, WHICH MEANS YOU NEED CELL DIVISION…

4. ANIMAL DEVELOPMENT CLEAVAGE A FORM OF MITOTIC CELL DIVISION
RAPID MITOSIS, WHICH DOESN’T GIVE THE CELL TIME TO REGROW
ADVANCED TERMS
MORULATION
BLASTULATION
GASTRULATION

5. ANIMAL DEVELOPMENT DIFFERENTIATION
IF CLEAVAGE USES MITOSIS, AND MITOSIS MAKES “IDENTICAL” OFFSPRING, HOW CAN MULTI-CELLULAR ORGANISMS HAVE CELLS THAT ARE SO DIFFERENT? (I.E. NERVE CELLS, STOMACH CELLS, SKIN CELLS, ETC.)
DIFFERENTIATION
THE PROCESS BY WHICH CELLS BECOME SPECIALIZED

6. ANIMAL DEVELOPMENT DIFFERENT CELLS, USE DIFFERENT PARTS OF THE DNA
DIFFERENTIATION
EVEN THOUGH EVERY CELL IS GENETICALLY IDENTICAL, NOT EVERY CELL USES THE SAME DNA…
DIFFERENT CELLS, USE DIFFERENT PARTS OF THE DNA

7. ANIMAL DEVELOPMENT
THE PROCESS OF GOING FROM A SINGLE FERTILIZED EGG TO A MULTI-CELLULAR ORGANISM IS REFERRED TO AS DEVELOPMENT
DEVELOPMENT CAN OCCUR EXTERNALLY OR INTERNALLY

8. ANIMAL DEVELOPMENT
LET’S FOCUS ON HUMANS!!
HUMAN REPRODUCTION NEXT