The U. S.A. has built a station on Mars. Two new astronauts are to be sent on a mission to Mars to help maintain the Mars station. As they travel from the Earth to Mars their weight is monitored. What happens to their weight as they travel from Earth to Mars is carefully recorded. Which statement would you not expect to be listed? (Does not happen) Group of answer choices

As they leave the Earth their weight decreases

As they get closer to Mars their weight increases as they get closer

Weight never changes

They are weightless in space during most of their journey

Weight never changes & As they get closer to Mars their weight increases as they get closer.

Explanation:

If the new astronauts were traveling to Mars from Earth the first thing you would notice is that their weights would change, this is because there is little gravity in space so you would watch them become lighter as they go farther into space. As for the second answer, if you were getting closer to mars your weight would be less than the regular weight you would have on Earth this is because of Mars gravity being smaller than the gravity on Earth.

the speed increase from w to x due to increased gravity force

the speed decreases from x to y due to decrease in gravity

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.