Biology Quiz SSC RRB

Question 1

Plants absorb most part of water needed by them through their ______.

Solution:

Root hairs form an important surface over which plants absorb most of their water and nutrients.
Difficulty Level: Medium
Correct Attempts: 0%
Topic: Biology

Question 2

The skin biting mosquito has legs as locomotory organ which are

Solution:

The skin biting mosquito has legs as locomotory organ which are Three pairs. Thorax segment of mosquito is where the two wings and six legs attach. It contains the flight muscles, compound heart and nerve cell ganglia and trachioles.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 3

Chirorterophily means :

Solution:

Chiropterophily is pollination of plants by bats. Bat pollination is most common in tropical and desert areas that have many night-blooming plants. Just like bees and birds that pollinate, nectar-consuming bats have evolved ways to find and harvest the sweet liquid.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 4

The special modified epidermal cells surrounding stomatal pore are called

Solution:

Correct Answer

The epidermis cells, meaning “over-skin”, is a single-layered group of cells that covers plants’ leaves, flowers, roots and stems. It forms a boundary between the plant and the external environment.
The plant epidermis consists of three main cell types: pavement cells, guard cells and their subsidiary cells that surround the stomata and trichomes, otherwise known as leaf hairs. Stomata are holes in the plant epidermis that are surrounded by two guard cells, which control the opening and closing of the aperture. These guard cells are in turn surrounded by subsidiary cells which provide a supporting role for the guard cells.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 5

Yellow spots on citrus leaves is due to the deficiency of:

Solution:

Correct Answer

In the magnesium deficiency citrus leaves turn yellowish overall but larger veins remain slightly green where manganese is deficient.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 6

The normal body temperature of human beings is

Solution:

In humans, the average internal temperature is 37.0 °C (98.6 °F), though it varies among individuals.
Different parts of the body have different temperatures. Rectal and vaginal measurements taken directly inside the body cavity are typically slightly higher than oral measurements, and oral measurements are somewhat higher than skin measurements.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 7

Bat can fly in dark because they

Solution:

Bat can fly in dark because they produce high pitched sounds called ultrasonics
Difficulty Level: Medium
Correct Attempts: 0%
Topic: Biology

Question 8

DPT is a vaccine for

Solution:

Correct Answer

DPT vaccine protects against diphtheria, pertussis & whooping cough and tetanus. It is one of the most common vaccine-preventable childhood disease.
Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 9

Lichens are examples of

Solution:

    • A symbiont is an organism that is very closely associated with another, usually larger, organism. This larger organism is called a host. A symbiont can live on, in, or sometimes very near its host.

 

    • Lichens are examples of Symbionts.

 

Difficulty Level: Easy
Correct Attempts: 0%
Topic: Biology

Question 10

Which of the following is not a mosquito borne disease?

Solution:

Diseases transmitted by mosquitoes include: malaria,dengueWest Nile viruschikungunya, yellow fever, filariasis, tularemia, Japanese encephalitis, Saint Louis encephalitis, Western equine encephalitis, Eastern equine encephalitis, Venezuelan equine encephalitis, La Crosse encephalitis and Zika fever.

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