Question

I. Multiple choice questions:
1. Which of the following is not an oviparous animal?
a) Snake
b) Fish
c) Rat
d) Frog
2. In human males, the testes lie in the scrotal sacs outside the body because it helps in:
a) the process of mating
b) formation of sperms
c) easy transfer of sperms
d) All of above
3. The multicellular organism which reproduces by budding is :
a) Amoeba
b) Yeast
c) Paramecium
d) Hydra
4. Which of the following is not a part of the human male reproductive system?
a) Testes
b) Oviduct
c) Seminal vesicles
d) Epididymis.
5. The number of nuclei present in a zygote is
a) One
b) Two
c) Three
d) None
6. A tadpole develops into an adult frog by the process of
a) Fertilisation
b) Metamorphosis c) Embedding
d) Budding
7. In human being, after fertilisation, the structure which gets embedded in the wall of uterus is
a) Ovum
b) Embryo
c) Foetus
d) Zygoto
8. Aquatic animals in which fertilisation occurs in water are said to be:
a) viviparous without fertilisation
b) oviparous with external fertilisation
c) viviparous with internal fertilisation d) oviparous with internal fertilisation
9. The animal having separate male and female individuals are known as
a) Unisexual animals
b) Bisexual animals
c) Hermaphrodite
d) All of these
10. Sperm carrying fluid is known as
a) Plasma
b) Semen
c) Seminal vesicle
d) None of these​

Answer 1

Answer:

A representative sample is a subset of a population that seeks to accurately reflect the characteristics of the larger group. For example, a classroom of 30 students with 15 males and 15 females could generate a representative sample that might include six students: three males and three females. Samples are useful in statistical analysis when population sizes are large because they contain smaller, manageable versions of the larger group.