CBSE Class 10th Science | Chapter 8 : How do Organisms Reproduce ? | Solved Exercises

Exercises | Chapter 8 : How do Organisms Reproduce? | Science |Class 10th | CBSE
Question 1. Asexual reproduction takes place through budding in
(a) amoeba.
(b) yeast.
(c) plasmodium.
(d) leishmania.

Answer. (b) yeast

CBSE Class 10th Science | Chapter 7 : Control and Coordination | Solved Exercises

 Question 1. Which of the following is a plant hormone?
(a) Insulin
(b) Thyroxin
(c) Oestrogen
(d) Cytokinin.

Answer. (d) Cytokinin

CBSE Class 10th Science | Chapter 6. Life Processes | Solved Exercises

Question 1. Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
Answer. In multi-cellular organisms like humans, various body parts have specialized in the functions they perform. All the cells with in different parts of human body need oxygen but all are not exposed to surrounding environment for intake of oxygen through diffusion. Therefore, process of diffusion is insufficient to meet the oxygen requirements of multi-cellular organisms like human