Forces acting on an object that combine and form a net force of zero are balanced forces. As shown in the figure on the opposite page, balanced forces do not change the motion of an object. Forces acting on an object that combine and form a net force that is not zero are unbalanced forces.
Aerobic means "with oxygen," so when you exercise aerobically your body needs an extra supply of oxygen. Your heart has to work harder to continuously deliver the oxygen to your body, and this makes your heart stronger.
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Answer:
Explanation:
The “powerhouses” of the cell, mitochondria are oval-shaped organelles found in most eukaryotic cells. As the site of cellular respiration, mitochondria serve to transform molecules such as glucose into an energy molecule known as ATP (adenosine triphosphate).
Answer:
Phylogeny.
Explanation:
Classification may be defined as the process of classifying the organisms into same or different groups depending on their similarities and differences. Carolus Linnaeus is known as the father of taxonomy.
Carolus believes in the fixity of species but the statement proves wrong as the species evolve with time. Linnaeus had been uncomfortable with the phylogeny or the evolution of the organism. His idea of the fixity of species is in contradiction with the phylogeny.
Thus, the correct answer is option (4).
In danger, they cannot fly for a longer time unlike the other birds. Their long,heavy tails make it a bit difficult. However their flight lasts for some seconds .