1. how are animals dependent on plants ?
2. explain the reasons for depletion of water table.
3. describe the working of an efectnic bell.
4. what is reproduction ? describe different types of asexual and sexual reprduotion.
Answers
Answer:
1.
Plants provide shelter for animals and they make oxygen for the animals to live. When animals die, they decompose and become natural fertilizer for plants. Plants are also useful for animal home because many animals live around plants.
2.
The two main causes of Depletion of Water Table are Deforestation and Over-pumping of groundwater.
3.
An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. ... When an electric current flows through the coils, the electromagnet creates a magnetic field which pulls the armature towards it, causing the hammer to strike the bell.
4.Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents". ... There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism.
Answer:
1-Plants provide shelter for animals and they make oxygen for the animals to live. When animals die, they decompose andAsexual reproduction
become natural fertilizer for plants. Plants are also useful for animal home because many animals live around plants.
2)The two main causes of Depletion of Water Table are Deforestation and Over-pumping of groundwater.
3)An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. ... When an electric current flows through the coils, the electromagnet creates a magnetic field which pulls the armature towards it, causing the hammer to strike the bell.
Explanation:
4)Asexual reproduction
1) Binary fission: Single parent cell doubles its DNA, then divides into two cells. Usually occurs in bacteria. 2) Budding: Small growth on surface of parent breaks off, resulting in the formation of two individuals. Occurs in yeast and some animals (like the hydra below).