Answer:
Two populations of birds live in the same area but have different sleep/wake cycles this is Chronotype.
Explanation:
Every organism has a biological clock called Circadian rhythm. Circadian rhythm is a cycle of 24 hours and determine the particular activities within these 24 hours for example sleep and wake cycle. Whereas a chronotype is a natural tendency of any organism toward sleep preference within their circadian rhythm. for example, owl prefers to stay active during night while sparrow sleeps at night.
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Gravity is the force that pulls objects toward Earth's center.
Plants make carbohydrates through the process of
photosynthesis. When the leaves of the plants absorb the sunlight, they use
this energy to combine water with carbon dioxide. The by-products of mixing carbon
dioxide and water are glucose and cellulose.
<span>Photosynthesis is a unique trait that separate
plants from other living organisms. They can provide the necessary nutrients to
help sustain themselves and survive for longer periods of time. When
carbohydrates are in excess, plants have the ability to store and use them when
one of the ingredients of photosynthesis is not available. </span>
Answer:
Because older cultures of gram-positive bacteria tend to lose their ability to retain crystal-violet in the peptidoglycan of their cell walls and can be confused with gram-negative bacteria.
Explanation:
Gram staining is used to differentiate between two major groups of bacteria. Gram-positive and gram-negative, these bacteria differ in the amount of peptidoglycan in their cell walls. Gram-positive bacteria have a higher amount of peptidoglycan, which absorbs the violet crystal complex used in gram staining, staining them purple/violet. Old cultures of gram-positive bacteria tend to lose the ability to retain the violet crystal and are stained by safranine, staining them red/pink and appear to be gram-negative.
