Answer:
Nebula: is an interstellar cloud of dust,hydrogen, helium and other ionized gases.
protostar: is a very young star that is still gathering mass from its parent molecural cioud.
Red Giant: is a luminous giant star of law or intermediate mass in late phase of stellar evolution.
Answer:
Do you mean the definition?
I think it is "population density". Population density is the number of individuals per unit area or volume.
Explanation:
Answer:
Changing temperature causes extinction or removal of organism from that place.
Explanation:
Small changes to both biotic and abiotic components can have major effects on an ecosystem because these are the factors on which the ecosystem depends. For example, if the temperature of the ecosystem increases from its limit, it makes the environment unfavourable for the organism so due to this change, the organism migrated to other location otherwise they will die due to unfavourable environment.
''The movement of chloroplasts is due to the movement of cytoplasm in the living cells of bean plants'' is the correct statement.
The above statement is correct because chloroplast is an organelle which moves in the cell through the medium known as cytoplasm. Cytoplasm is a thick fluid that fills every type of cell and organelles are floating as well as suspended in this fluid.
All organelles such as the nucleus, endoplasmic reticulum, chloroplast and mitochondria etc are located in the cytoplasm. The portion of the cytoplasm except the organelles is called cytosol so we can conclude that chloroplast is an organelle which moves within the cell with the help of cytoplasm.
Learn more: brainly.com/question/25148289
The answer is d
hope this helps
