<span>Many resources come from living things. We use animals such as chickens, cows and pigs for meat. We use plants for numerous things. Plants are eaten and also we can make products from them. An example is cotton. We make clothes from that item.</span>
Each sieve tube element is normally associated with one or more nucleated companion cells, to which they are connected by plasnodesmata (channels between the cells). Each companion cell is derived from the same mother cell as its associated sieve tube member. Sieve tube members have no cell nucleus, ribosomes, or vacues. Thus, they depend on companion cells to provide proteins, ATP, and signalling molecules
Answer:
false
Explanation:
it is formed when electrons are transferred from valence shell of one atom to valence shell of another atom