Asset Mock
Grade-6
Biology
1. In the year 1770, Joseph Priestly performed an experiment as shown below. In figure a
and b the mouse started fainting after some time, but in figure c and d the candle was
burning and after some time and mouse also stayed alive.
Predict the conclusion of the experiment
a. Both candle and mouse require Oxygen which is provided by the plant
b. Both candle and mouse require Carbon dioxide which is provided by the plant.
c. Glucose made by the plant helps the candle to glow and mouse to be active.
d. Candle light helps the plant and the mouse to stay alive.
2. Giraffes are animals which are adapted to live on the African savanna.
Which of the following is NOT true about this animal?
a. They are tall so that it is easy to spot predators
b. They can drink up to 12 gallons of water when available
c. They have a long neck to eat leaves from tree tops
d. They have a tiny heart to pump blood up their necks
3. Mike went to the garden, he saw wasps and bees having beautiful black and yellow strips
on its back. What is the most likely reason why wasps and bees have black and yellow
stripes?
a. The stripes warn other animals that wasps and bees are dangerous
b. The stripes are attractive to birds and other predators
c. The stripes make them look like harmless hoverflies, so they can sneak up on their
prey
d. The stripes help in reproduction.
4. Wildfires occur often in grasslands. Animals flee fires or go underground, but grasses and
other plants common to grasslands can't run away. Instead, they are specially adapted to
survive fire. What is the adaptation which help them to grow back after some days?
a. Plants which have enough uptake of nitrogen can survive and regrow
b. Plants that has long roots under the ground survive and regrow
c. Plants which have long and narrow stems regrows
d. Plants which have thick barks will survive and regrow
5. What is likely to happen to the population of thrushes if the population of voles
increases?
a. It will increase
b. It will decrease
c. It remains the same
d. It will be balanced
6. What can we conclude from this pyramid of numbers?
a. The producer must be very large
b. The producer must be very small
c. The primary consumer must be a carnivore
d. The primary consumers population is large.
7. Transpiration is the evaporation of water from plants and Condensation is the process,
which change of water from water vapor into liquid water. Figure shows an energy flow
in an ecosystem. Loss of energy occur due to- Figure shows an energy flow in an
ecosystem.
a. Photosynthesis and excretion
b. Digestion and excretion
c. Respiration and heat loss
d. Photosynthesis and digestion
8. A population of rabbits in an area of Northern Florida was monitored to learn more
about the biotic and abiotic factors that affect the population size. The graph shows
data collected about the rabbit population size for 30 generations. Based on the data,
what can be correctly stated about the rabbit population?
a. More rabbits have immigrated than have emigrated.
b. The number of deaths is greater than the number of births.
c. Overcrowding and a lack of food restrict on the population of rabbits.
d. At the twentieth generation a lethal virus kills a majority of the rabbits
9. Jake conducted an experiment with four bean plants. They were placed next to one
another on a sunny windowsill. He gave each plant equal amounts of a different type of
water. The plants were given tap water, distilled water, flavored water, or carbonated
water. He made the following observations after three weeks. Based on his results, Jake
concluded that tap water is not good for plants. How can Jake change his experimental
design to improve the validity of his results?
a. carry out multiple trials, and increase the number of plants that are given each
type of water
b. establish a control group that includes different types of plants
c. establish another dependent variable to generate more data
d. carry out multiple trials that include fewer plants, and increase the types of
water given to the plants
10. Noxious weeds are weeds that invade ecosystems and grow very quickly and
aggressively. In Colorado, more than 1 million acres are affected by noxious weeds. How
do noxious weeds affect the biodiversity of an ecosystem?
a. The biodiversity increases slightly because they represent another species in the area.
b. They increase the biodiversity because they increase the total energy of the producers.
c. The biodiversity usually decreases greatly as the noxious weeds out-compete the
d. The biodiversity is not affected at all since the noxious weeds simply replace the
