Hi!
The answer is B. chloroplast because prokaryotic cells don't have contractile vacuoles, DNA, or a nucleus.
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Answer: cell membrane
such as water, micro-organism
physical process
simple diffusion, osmosis and filtration
such as potasssium permaganate in water,urea a liver waste diffuses from the body and the kidney help in filtering it out
physiological processs
active transport, phagocytosis and pinocytosis
such as soduim-potassium pump, exocytosis
Explanation: transportation in and out of cell is done in different ways listed above but a barrier to this movement is the cell membrane which is an outer covering of the cell. it protect the cell and only some materials can penetrate the cell membrane e.g micro-organism, water e.t.c. the various physical and physiological processes are the various ways substance cna be liquid, solid or gas are transported within or outside the cell e.g food
<span>cells are the units of structure and different functions in livings things
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Answer:
Biodiverisity can increase the rate of extinction
Explanation:i did the quiz my self thats teh answer for this question
Mendel observed phenotypic traits during the cross of pea plants. Subsequently, he noted each trait had only two forms.
<h3>Mendel's Experiments</h3>
Mendel crossed pure-breeding pea plants, and then he crossed hybrid generations, as well crossed the hybrid progeny back to parental lines.
From these crosses, Mendel observed the descendence and then formulated a series of inheritance principles.
Mendel noted traits can be divided into dominant and recessive phenotypic characteristics.
Dominant characteristics were inherited in an unaltered manner after hybridization of true breeding [plants.
Learn more about Mendel's experiments here:
brainly.com/question/9546178
