2: D 3: A 4: B 5:A 6:C PLEASE MARK BRAINLIEST!!
It's an important part of the bird's ability to maintain its body temperature.
Air is a poor conductor of heat, so the air trapped among the feathers
prevents the loss of heat in cold atmosphere, and prevents overheating
in hot atmosphere. Much like our wearing several layers of clothing.
Answer:
Everyday Examples of Convection
This hot water rises and cooler water moves down to replace it, causing a circular motion. radiator - A radiator puts warm air out at the top and draws in cooler air at the bottom. ... ice melting - Ice melts because heat moves to the ice from the air.
Explanation:
Plz brainliest
The answers for 12 questions in attached pdf.
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
