YR3_CH5_LSN6

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 3

HAVE READY:

• your Macbook
• join KWIZL

ET_CH5_LSN6

• 8 minutes to complete the quiz
• 7 minutes to give feedback

HAVE READY:

• your notebook
• google classroom
• PDF " Longman - 5.3"

LESSON 6

REPRODUCTION & INHERITANCE

Learning goals section 6:

• I know what primary sexual characteristics & secondary sexual characteristics are.
• I understand and can explain the differences between the two.
• I can name and explain examples of both primary and secondary sexual characteristics in both humans and animals.

Key words section 6:

• primary sexual characteristics
• secondary sexual characteristics
• childhood
• puberty
• adolescents
• sexual dimorphism

PRIMARY SEXUAL CHARACTERISTICS

• Are present at birth.
• Show a clear difference between the sexes.

examples: 

male: penis

female: labia & vagina

SECONDARY SEX. CHARACTERISTICS

• Develop later in life.
• Form under the influence of hormones.
• Often make the visual differences between the sexes bigger. 

examples: 

male: muscle development, sperm production

female: breasts develop, menstrual cycle.

BABY

CHILD

ADOLESCENT

ADULT

ELDERLY

Sexual Dimorphism:

Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most dioecious species, which consist of most animals and some plants.

What to do now:

• Read the PDF “Longman 5.3”
• Complete the Lessonup “HW7”
• Review everything till now.