Name: ____________
Internal vs. External Fertilization
Date: ______________
Fertilization
• Fertilization is the union of egg and sperm
The zygote will only grow if certain conditions are met:
•
• It’s _______________________ for proteins to function properly
• There is sufficient _____________________________
• Protected from _____________________________
External Fertilization
• External fertilization occurs ________________of female parent
• Eggs and sperm come together in the ______________________________
•
Disadvantages:
•
•
Internal Fertilization
• Internal fertilization occurs _______________the female parent
• _____________________takes place inside the female body
Advantage:
•
Disadvantage:
•
• Need to take care of young for a long time
•
Sexual Reproduction in Plants
Pollination:
• Pollen contains _______________________________
• Pollen is carried via wind or insects to the _________ reproductive
structure (__________ or _____________)
Seeds
•
•
• Seeds are often contained in ____________ which are eaten by animals
and _______________________________________________________.