EASY
10th CBSE
IMPORTANT
Earn 100

Draw a diagram showing germination of pollen on stigma of a flower and label pollen grain, male germ-cells, pollen tube and female germ-cell in that diagram.

Important Questions on How Do Organisms Reproduce?

EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3B>Q 5
How is zygote formed?
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3B>Q 6
Draw a longitudinal section of a flower and label the following parts:
  • Part that produces pollen grain
  • Part that transfers male gametes to the female gametes
  • Part that is sticky to trap the pollen grain
  • Part that develops into a fruit.
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3B>Q 6
Differentiate between pollination and fertilization.
EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3C>Q 1
Which among the following is not the function of testes at puberty?
(i) formation of germ cells
(ii) secretion of testosterone
(iii) development of the placenta
(iv) secretion of estrogen
MEDIUM
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3C>Q 4
Offspring formed as a result of sexual reproduction exhibit more variations because
EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3C>Q 5

During adolescence, several changes occur in the human body. Mark one change not associated with sexual maturation in boys.

EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3C>Q 1
Name the male gamete in humans.
EASY
10th CBSE
IMPORTANT
CORE SCIENCE BIOLOGY For Class 10>Chapter 3 - How Do Organisms Reproduce?>EXERCISE - 3C>Q 3

What are the three parts of a sperm?