Answer:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.
Explanation:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
Answer:
B. Light
Explanation:
Light is electromagnetic wave. Electromagnetic wave is a type of wave which does not requires medium for its propagation so that's why light travel through space from sun and sound can't because sound is longitudinal wave which requires medium for its propagation. Electromagnetic wave is also called transverse waves. In transverse or electromagnetic wave, movement of oscillation is perpendicular to the direction of the wave.
Answer: A and D
Explanation: pretty simple
Answer:
No heart, no blood and no circulation, but plants do need a transport system to move food, water and minerals around. They use two different systems – xylem moves water and solutes from the roots to the leaves – phloem moves food substances from leaves to the rest of the plant
Answer:
Knowledge of the relationship between the size (volume) of cells and their surface area helps explain the process of diffusion. Agar blocks and cells with the largest surface area to volume ratio (the smaller cubes) have the highest diffusion rates.
Explanation:
