Study and Learn with 1000s of Biology MCQs
Animals use _____ types of gas-exchange systems 2467 Correct Answer 4 _____ occurs through the outer surface of an animal Integumentary exchangeTracheal exchange systemsBoth of theseNone of these Correct Answer Integumentary exchange Worms and amphibians employ _____ type of gas-exchange…
Enzymes are chemically __ ProteinsCarbohydratesFatty acidsvitamins Correct Answer Proteins __, of which there are 20, are the foundation of all proteins Amino acidsCarbohydratesFatty acidssalts Correct Answer Amino acids Amino acids, of which there are _, are the foundation of all…
Earth Formed _____ years ago 1.5 trillion4.5 billion0.0025 billion70 million Correct Answer 4.5 billion volume is measured in _____ literskilogramsmolesjoules Correct Answer liters Space is measured in? PressureVolumetemperatureNone of these Correct Answer Volume _____ is the term for describing the…
Each group of organisms of the same species living in the same area forms _ CommunitySpeciefamilypopulation Correct Answer population Measure of organisms occupying a specific area is called? Community volumeSpeciedensityFamily densityPopulation density Correct Answer Population density Population ecologists use the…
The maximum growth rate of a population under ideal conditions is referred to as _ biotic potentialAbiotic potentialBiotic energyNone of these Correct Answer biotic potential factors involved in determining biotic potential include _ The age of the organisms when they’re…
the delivery of pollen to a flower’s stigma is called? PollinationFertilizationPhotosynthesishydrolysis Correct Answer Pollination _ is a process when a sperm joins with an egg PollinationFertilizationPhotosynthesishydrolysis Correct Answer Fertilization _ are usually brightly colored to attract the animals Bat- and…
Multiple-choice questions (MCQs) on the plasma membrane explores various aspects of its structure, function, and role in cell physiology. Topics covered include membrane composition, membrane proteins, membrane transport mechanisms (such as diffusion, osmosis, facilitated diffusion, and active transport), and cell…
Types of Plant tissues include _ Vascular tissueGround tissueDermal tissueAll of these Correct Answer All of these _ Consist primarily of epidermal cells Vascular tissueGround tissueDermal tissueAll of these Correct Answer Dermal tissue _ covers the entire surface of a…
Which of these functions is controlled by hormones? ripening of fruitthe growth of shoots upward and roots downwardthe growth of plants toward the lightthe dropping of leaves in the fallAll of these Correct Answer All of these _ stimulate the…
There are __ carbon atoms in glucose 125616 Correct Answer 6 There are __ hydrogen atoms in glucose 125616 Correct Answer 12 There are __ oxygen atoms in glucose 125616 Correct Answer 6 The light reactions of photosynthesis transform _…
