Mitosis is the division of the nucleus while cytokinesis is the division of the cytoplasm
All plants have a cell wall, all mammals have a cell membrane. a cell membrane is semi-permeable it allows mammal cells to absorb needed nutrients, oxygen and deposit waste into the blood stream where it is excreted through urine and feces. a plant cells nutrients are absorbed through the root system and leaves, waste is excreted in the form of oxygen through the plant itself.
1.) Enzymes are a type of protein that speeds up the rate of chemical reactions
2.) Catalase is an enzyme in the liver that hydrogen peroxide (H2O2)
3.) By lowering the activation energy needed
4.) Catalysts
Answer:
3) B
4) A
5) B
Explanation:
3) Sun heats up the air of a particular region due to which the air heated rises up ( as hot air is lighter than cool air ). When the hot sir rises , the cool air from other region comes there & like this wind blow.
4) A toaster uses electricity to produce heat in order to toast bread So here the electric energy is converted to thermal energy.
5) Windmills , Hydroelectricity dams & Ethanol plants have turbines & turbines do have a generator which is to be rotated . When the generator is rotated , electricity is generated.
Answer:
The correct answer will be- sexual reproduction
Explanation:
An organism can reproduce by either of two ways of reproduction called asexual reproduction and sexual reproduction.
Both modes of reproduction prove beneficial to the organism but based on the environmental condition, the organism use either sexual mode or asexual mode or both.
In the given condition, since the organism has to adapt and evolve in response to the desert conditions which requires changes in the DNA sequences which can take place only during the mechanism of sexual reproduction like crossing over or genetic recombination, therefore, sexual reproduction is the correct answer.
