Answer:
Euglena is a large genus of unicellular protists: they have both plant and animal characteristics. All live in water, and move by means of a flagellum. This is an animal characteristic. Most have chloroplasts, which are characteristic of algae and plants.
Osmosis happened. The water inside the paramecium was attracted to the high concentration of salt outside so it moved through the cell membrane, thus causing the paramecium to lose water and shrivel.
Answer:
1 A prokaryote is a cellular organism that lacks an envelope-enclosed nucleus.
2 Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope.
3 Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions.
4 The plasma membrane.
Cytoplasm.
Ribosomes.
Genetic material (DNA and RNA)
5 Prokaryotes
Body maintain Homeostasis by Negative Feedback mechanism. Because the stimuli causing the disturbance in the Homeostasis of the body is to be counteracted by a mechanism.
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What is homeostasis?</h3>
The Homeostasis of the body is defined as the regulation of the internal environment of the body when there is a change.
In Positive feedback mechanism, it increases the response of the stimuli In temperature regulation, the stimuli are hot and cold.
Both are controlled by a opposing negative feedback mechansim that is when the body temeprature increases it is decreased to normal by a negative feedback mechanism , likely when the body temeprature is decreased(cold) , the body will increase the Body temeprature to normal By a Negative feedback mechanism that is exactly opposite(opposing) to the Former Negative feedback mechanism pathway.
In termparature regulation when body temperature raises ----->detected by nerve endings in the skin--Hypothalamus -----> signal to blood vessel for dilation activation of the sweat gland-the tempertaure is maintained to normal. -> signal send to the>heat is lossed and when body temperature decreases -----> detected by nerve endings in the skin------> signal send to the hypothalamus -----> signal to blood vessel for constriction inhibition of secretion from sweat gland, shivering ---->heat is generated -->normal.
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