CBSE Male Reproductive System Parts And Functions Class 8 Explanation Fill In The Blanks
Question 1. Sperms are produced in
Answer: Testes
Question 2. ……Reproduces by budding.
Answer: Hydra
Read And Learn More CBSE Class 8 Science Question And Answers
Question 3. Amoeba is a celled organism…….It reproduces by reproduction. The process of reproduction begins by the devision of The process of reproduction begians by the division of its into two. This is followed by the division of it into two. This type of reproduction is called fission.
Answer: Single, asexual, nucleus, cytoplasm, binary.
Question 4. Reproduction by binary fission occurs in
Answer: Amoeba
Question 5………..reproduces by fragmentation
Answer: Spirogyra
CBSE Metamorphosis In Frogs Stages With Diagram Class 8 Science True Or False
Question 1. All living animals reproduce to produce new young ones.
Answer: True
Question 2. The human egg has a head, middle piece, and tail.
Answer: False, human sperm has a head, middle piece, and tail.
Question 3. Sperms are produced by the ovaries.
Answer: False, sperms are produced by the testes.
Question 4. The male gametes are called sperm.
Answer: False, male gametes are called sperm
Question 5. In adult human females, a single mature egg is released into an oviduct every month
Answer: True
Question 6. Oviparous animals give birth to young ones.
Answer: False, oviparous animals (female) lay eggs
Question 7. Each sperm is a single cell.
Answer: True
Question 8. External fertilisation takes place in a frog.
Answer: True
Question 9. A new human individual develops from a cell called a gamete.
Answer: False, a new human individual develops from a cell called a zygote
Question 10. An egg laid after fertilisation is made up of a single cell.
Answer: True
Question 11. Amoeba reproduces by budding.
Answer: false, Amoeba reproduces by binary fission
Question 12. Fertilisation is necessary even in asexual reproduction.
Answer: False, fertilisation does not take place in asexual reproduction as no gametes are formed and only a single parent is involved
Question 13. Binary fission is a method of asexual reproduction.
Answer: True
Question 14. A zygote is formed as a result of fertilisation.
Answer: True
Question 15. An embryo is made up of a single cell.
Answer: False, because an embryo is a developing structure formed from a group of dividing cells of a zygote
Question 16. Cows and dogs are viviparous animals.
Answer: True
Question 17. Budding is a method of asexual reproduction.
Answer: True
CBSE DIY Model of Frog Life Cycle for Class 8 Science Project: Match The Columns
Question 1. Match Column 1 with Column 2
Answer: A-3, B-4, C-5, D-1, E-2
Question 10. Match Column 1 with Column 2.
Answer: A-3,B-1,C-4,D-2
CBSE Class 8 Science Chapter 6 – Higher Order Thinking Questions (HOTs) on Animal Reproduction
The following questions consist of two statements: Assertion (A) and Reason (R). Answer these questions by selecting the appropriate option given below
- Both A and R are true, and R is the correct explanation of A
- Both A and R are true, but R is not the correct explanation of A
- A is true, but R is false
- A is false, but R is true
Question 1.
Assertion (A) The animals that undergo external fertilisation lay hundreds of eggs.
Reason (R): To enhance the chances of fertilisation.
Answer: 2. Both A and R are true, and R is the correct explanation of A.
Question 2.
Assertion (A) Internal fertilisation occurs in many animals, including humans, cows, dogs, and hens.
Reason (R) Fertilisation, which takes place inside the female body, is called internal fertilisation.
Answer: 2. Both A and R are true, and R is not the correct explanation ofA.
Question 3.
Assertion (A) It is easy to collect the eggs of viviparous animals.
Reason (R) They lay eggs outside their body.
Answer: 4. A is false, but R is true. A can be corrected as it is easy to collect the eggs of oviparous animals
Question 4.
Assertion (A) Human beings do not undergo metamorphosis.
Reason (R) The body parts in adults are not similar to those of babies.
Answer: 3. A is true, but R is false. R can be corrected as the body parts in adults are similar to those of babies
Question 5.
Assertion (A) Binary fission and budding are two methods of asexual reproduction
Reason (R) Only a single parent is involved
Answer: 1. Both A and R are true. R is the correct explanation of A