Answer:
Explanation:A mechanical wave requires an initial energy input. Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.
Answer:
It was 11 to 81 kilometers (6.8 to 50.3 miles) in diameter
Explanation:
brainliest???
Peristalsis<span> is a radically symmetrical </span><span> contraction and relaxation of muscles</span><span> that propagates in a wave</span><span> down a tube, in an anterograde direction.</span>
I think it’s called chronic bronchitis
1. Plants, unlike animals, cannot move. <span>Living things move primarily to replenish their energy and find security by hiding from predators. Plants are able to do both quite fine while stationary as they are capable of mobilizing their inherent resources, plus those available from soil with the help of sunlight to make food</span> 2. Desert plants have needles instead of leaves to help prevent water loss and discourage animals from eating the plants. Desert plants tend to look very different from plants native to other regions. They are often swollen, spiny, and have tiny leaves that are rarely bright green. Their remarkable adaptations to the challenges of the desert climate. 3. As mentioned in the video; horseradish is spicy because the radish plants stores toxins in its roots for protection. The pungency of horseradish is essentially a defense mechanism against herbivores. Plants do not have legs, therefore, they have evolved to protect themselves; for example the defensive poison by horseradish gives it's hallmark pungency.
