Which of the following two organisms are producers?

• A) consumers and phytoplankton
• B) zooplankton, consumers
• C) plants and phytoplankton
• D) plants and consumers

Fungi reproduce sexually with

• A) nonflagellate gametes
• B) nuclear exchange
• C) swimming gametes
• D) parthenogenesis

Which of the following illustrate the principle of conservation of momentum; (i) rocket motion, (ii) jet engine, (iii) a car stuck in sand (iv) recoil of a gun:

• A) (i) and (iii)
• B) (i) and (iv)
• C) (i), (ii) and (iv)
• D) (i) and (ii)

William crooked was the first scientists who gave the evidence of existence of _____.

• A) Atoms
• B) Electrons
• C) Neutrons
• D) Protons

When Ray of light enter from denser medium to rare medium it bends_____.

• A) Parallel to normal
• B) Perpendicular to normal
• C) Away from normal
• D) Towards normal

Which one is not physics property of Chlorine Gas:

• A) It is fairly soluble in water.
• B) It is a greenish yellow gas.
• C) It has pungent smell.
• D) It is a nontoxic gas.

Animals that consume autotrophs for their food and energy are

• A) Omnivores
• B) Carnivores
• C) Producers
• D) Herbivores

There would be no life in the oceans without organisms called ______ and ______.

• A) zooplankton, phytoplankton
• B) phytoplankton, zooplankton
• C) decomposers, phytoplankton
• D) scavengers, consumers

What is the respiratory system?

• A) The body's food-processing system
• B) The body's breathing system
• C) The body's system of nerves
• D) The body's blood-transporting system

Organisms that use energy from the sun to make their own food are

• A) omnivores
• B) Producers
• C) consumers
• D) carnivores

Animals that feed on both plants and animals are called …

• A) detritivore
• B) Carnivores
• C) omnivores
• D) herbivores

Animals such as bears that consume both plants and other animals

• A) Herbivores
• B) Omnivores
• C) Producers
• D) Carnivores

Slowing down in opposite direction to the direction of the velocity is known as_____.

• A) Negative acceleration
• B) Positive acceleration
• C) Uniform acceleration
• D) Non-uniform acceleration

Zygomycete hyphae are unique in that they

• A) lack septa
• B) have perforated septa
• C) are dikaryotic
• D) are monokaryotic

A stone of mass 2 kg dropped from a tower fall to the ground in 3 seconds. A second mass of 3 kg dropped from the same height reaches the ground in:

• A) 3 seconds
• B) 2 seconds
• C) 6 seconds
• D) 4.5 seconds

Which type of rays produced due to Ionizations of atoms or molecules of gas in discharge tube?

• A) no rays produced due to ionization
• B) Positive
• C) Negative
• D) Neutral

A motorcycle was moving with uniform acceleration of 6m/s2. In 10 s it will cover___.

• A) 100 meters
• B) 450 meters
• C) 300 meters
• D) 60 meters

Fungi are virtually the only organism capable of breaking down

• A) Lignin
• B) Oil
• C) Cellulose
• D) Chitir

Which of the following is a biotic factor?

• A) temperature
• B) plant
• C) soil
• D) water

Fungi regulate the formation of microtubules during mitosis with

• A) centrioles
• B) basal bodies
• C) spindle plaques
• D) centromeres