B) Exocytosis.
Hope this is of help to you, and happy studying~!
~{Isle of flightless birds}
Options:
it has a cell wall but lacks a well–defined nucleus and organelles, and its cytoplasm doesn't have
<span>
much structure. - this is the correct one!
It contains a membrane–bound nucleus and organelles, and its organelles have specialized duties. </span>
<span>no!, this is false! prokaryotes don't have membrane-bound nucleus!
It contains a membrane–bound nucleus, a large central vacuole, a cell wall, a cell membrane, and chloroplasts.
- no!, this is false! prokaryotes don't have membrane-bound nucleus!</span>
so, for this we only needed to know that prokaryotes DON'T have a membrane-bound nucleus (and this is also perhaps their most important property)
The correct choice is D.
A karyotype is the layout of chromosomes, in size order from largest to smallest. These chromosomes are ALWAYS in pairs, meaning that it would be easy to notice which of the 23 chromosome pairs have 3 chromosomes instead of the usual pair.
The third choice is the answer.
This is because chemical change occurs when the (for a lack of better wording) interior of the object is changed in the second one the bread is being broken down chemically by the stomach acid this is because the acid is breaking down the formation of the bread dissolving it and chainring it into something else.
In the 4th one the change that is seen is chemical because the formation of the roof is change the physical appearance may be the same (ie. The size & shape) but their are other changes in the color, texture and maybe taste ( don’t taste a rusting roof lol) these are ways in which you can figure out if a change is chemical or physical.
Physical change occurs when the size and/or shape of an object is changed.
Chemical change occurs when the texture, taste and/or color of the object is changed, but-sometimes chemical change cannot be seen.
Hope this helped :)