(Q).
Echinoderms lack respiratory and excretory systems, and all echinoderms are marine and benthic. Given these facts, what creatures lack respiratory and excretory systems among the following options: - Plant growth is reduced - marine and benthic - barnacles - epidermis and dermis - They may not survive. - kalenchoes - graptolites - movement of tectonic plates
(A).
marine and benthic

(Q).
Mollusks are a major food source for other organisms, including humans, and interestingly, a squid is also a mollusk. Given these facts, what do humans eat among the following options: - Kelp - sugar - legumes - food - Eyes - Coral - animals - Squid
(A).
Squid

(Q).
Ozone depletion results in higher levels of UV radiation reaching Earth, and solar UV radiation levels are highest during the middle of the day. Given these facts, ozone depletion results in radiation levels that are highest when among the following options: - middle of the day - forest is destroyed - late evening - Under 32 degrees - middle of the night - Temperature changing - Plant growth is reduced - early morning
(A).
middle of the day