The answer is A, Sound waves must have materials to bump together to transfer the waves.
: Rationale: A lack of support. It was discovered that Nixon’s advisors had connections to the individuals involved in the burglary at the democratic headquarters. Not long after, Nixon was forced to release transcripts of all his recorded conversations at the White House. Nixon complied, but did not turn over any of the recorded conversations with his advisors. He claimed that as president he had the right to keep discussions with his advisors private. As the case details were released through the media, Americans were shocked to learn that the President might be involved in criminal activity and withdrew their support.
<span>Cork cells are plant cells on the outer edge of the trunks/limbs of woody plants. The cell wall is made of suberin, which doesn't let gas or water through. In essence, this helps keep the water in and unwanted things (like pathogens) out.
The inside of the cell is usually empty, but may have a few traces of things depending on species. These cells don't replicate and are generally considered to be dead.</span>
Answer:
don't know this one sorry
When energy passes from one trophic level to the next, I would guess that the two factors which decrease the total amount of energy from being passed up are:
1. An organism does not assimilate all the energy of food consumed. Within a consumer, digestion and assimilation of energy is not 100% efficient: some of the energy is lost.
2. A large proportion of energy assimilated by a producer and consumer is lost through respiration, i.e., day-to-day maintenance of metabolic processes.
