If echinoderms are resistant to some toxins, then echinoderms are resistant to some:? Answer choices: - starfish - enzymes - Toxicity - pesticide - parasites - toxins - boats - chemicals
toxins

(Question)
If an aquatic animal requires great amounts of water to use their gills to extract the dissolved oxygen, then what requires great amounts of water to use their gills to extract dissolved oxygen? Answer choices: - most cephalopods - alligators - starfish - aquatic animals - Jellyfish - water foul - platypus - Lobsters
(Answer)
aquatic animals

Ques: If amphibians are classified based on their skull, then what are amphibians classified by? Answer choices: - organ - ovaries - colors - feet - alleles - genus - skull - Length
Ans: skull

(Q).
If arsenic causes harm to living things, then what can cause harm to living things? Answer choices: - bacteria - cigarettes - Pesticides - toxins - steroids - amoebae - leeches - Arsenic
(A).
Arsenic

Ques:If cacti are adapted to very dry environments, then what are adapted to very dry environments? Answer choices: - otters - toads - plants - cacti - seeds - adaptations - alpacas - spores

Ans:cacti

If cutting down plants has a negative impact on the ecosystem, then doing what to plants has a negative impact on the ecosystem? Answer choices: - planting them - deforestation - cutting them down - Pesticides - watering them - massive damage - sitting under them - Abnormal cell growth
cutting them down