Answer: d- because a model is never exactly the same as the thing it represents
Paramecium is protozoan which is like a bedroom slipper in shape and swims rapidly in a corkscrew fashion by means of an army of cilia that operate in wavelike movements. These tiny creatures are abundant in freshwater ponds, especially in areas that are rich in algae.
Paramecium rescued from a fresh pond in Florida is among the most complex single-celled organisms found in fresh water. The fatty acid side chains in the membrane phospholipids of the Florida Paramecia would generally be longer and would be more saturated compared to those in the membranes of the Canada Paramecia.
Moreover, the species Paramecium bursarial shapes advantageous associations with green growth. The green growth lives in its cytoplasm. Algal photosynthesis gives a nourishment source to Paramecium. Paramecia can be utilized as model creatures to examine. You should know that the paramecium swims by rotating along its longer axis and is constantly in search of food, which is swept into the organism by a series of cilia that line the oral groove and gullet.<span>
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Answer:
i believe it is A.
because prophase is the 1st stagr in mitosis
The lack of adaptations to the habitat most likely caused the walleye to move to a different river.
Adaptation
It is a biological mechanism that increases the chance of its survival in a new environment or the changes in the existing environment. Adaptation occurs as a result of evolution and allows the organism to survive and reproduce efficiently in its environment.
Physical adaptations include accumulating changes in the physical characteristics of an organism that help them to survive and reproduce better. Example: evolution of long necks in giraffes.
Behavioral adaptations are changes in the behavior or habits of organisms that help them to sustain in a changing or new environment. Example: Hibernation.
Due to some reason, the walleye were not able to adapt to the environment of the east river which is why they must have moved to a new river despite the presence of a lot of prey.
Know more about adaptations
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