Which of the following type of soil has the highest water retaining capacity?
Loam
Laterite
Clay
Sand
Correct answer is C
Clay soil has a better retaining capacity because of its dense, closely packed particles. This quality makes it hold in more water than any other soil type.
The presence of ______ for swimming in a tad-pole enables it to adapt in an aquatic habitat.
Gills
Swim bladder
Tail
Fins
Correct answer is C
Tadpole's ability to swim and adapt to an aquatic habitat is due to the presence of its tail.
Plants that can survive in extremely dry places are called
Mesophytes
Xerophytes
Hydrophytes
Angiosperms
Correct answer is B
They are called Xerophytes because they are species of plant that have adaptations/adaptive features like waxy cuticles which enable them to survive in extremely dry land.
Only specially adapted microorganisms are found in
Salty water
Humid air
Moist soil
Mouth cavities
Correct answer is A
Halophiles are organisms that thrive in high salt concentrations. The adaptations of halophile organisms to their environment are:
(a) The integrity of non-halophile macromolecules is compromised, and the flow of water out of the cell produces a Turgor effect. • (b) Moderate halophiles maintain their structures via the synthesis of compatible organic solutes. • (c) Extreme halophiles maintain their structures via equilibration of cellular and environmental salt concentrations.
Which of the following is the effect of using artificial pollination in plant breeding?
Production of healthy crops
Lengthening the maturity time of crops
Making crops susceptible to disease
Improvement of the variety of crops
Correct answer is D
One of the effects of using artificial pollination in plant breeding is that it improves the variety of crops.