Daily Quiz | Science Series 2026

Science Series 2026 - Biology Human 05

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Question 1: An overdose of thyroid hormone may cause a person to feel:

Always sleepy with slow pulse

Restless with rapid heartbeat

Unable to digest starch

Unable to breathe due to blocked trachea

Question 2: Which statement about hormones is correct?

They are stored permanently in bones

They act on specific target organs

They are made only in stomach

They act on all cells equally at all times

Question 3: The male reproductive cell is called a:

Ovum

Zygote

Sperm

Embryo

Question 4: The female reproductive cell is called an:

Sperm

Ovum

Zygote

Fetus

Question 5: Fusion of sperm and ovum is called:

Fertilization

Fragmentation

Budding

Respiration

Question 6: The cell formed immediately after fertilization is the:

Placenta

Embryo

Zygote

Fetus

Question 7: In humans, fertilization usually occurs in the:

Fallopian tube (oviduct)

Ovary

Vagina

Uterus

Question 8: The organ where the embryo implants and develops is the:

Uterus

Ovary

Urethra

Fallopian tube

Question 9: The structure that connects developing fetus to the mother and allows exchange of nutrients is the:

Appendix

Alveoli

Placenta

Nephron

Question 10: The umbilical cord mainly contains:

Air tubes

Digestive tubes

Nerve cord of mother

Blood vessels connecting fetus to placenta

Question 11: Menstruation is the monthly shedding of the lining of the:

Lungs

Uterus

Kidneys

Stomach

Question 12: The average length of the menstrual cycle in many females is about:

60 days

14 days

28 days

7 days

Question 13: Ovulation means:

Release of an egg from the ovary

Fusion of gametes

Birth of baby

Formation of urine

Question 14: Puberty is the stage when:

Reproductive organs mature and secondary sexual characters appear

Kidneys stop filtering

All muscles become involuntary

Bones stop growing completely

Question 15: A visible change in boys during puberty is:

Formation of ovary

Deepening of voice

Development of placenta

Start of menstruation

Question 16: A visible change in girls during puberty is:

Formation of testes

Growth of beard

Deepening of voice like boys

Development of breasts

Question 17: Sperms are produced in the:

Pancreas

Uterus

Testes

Ovaries

Question 18: Ova are produced in the:

Ovaries

Prostate

Bladder

Testes

Question 19: The tube that carries sperms from testes is the:

Ureter

Oviduct

Vas deferens

Trachea

Question 20: The function of the prostate gland (basic level) is to:

Digest fats

Store urine

Produce eggs

Add fluid to semen to help sperm movement

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