Oxygen is just one substance transported by the blood, and hemoglobin transports oxygen in blood. Given these facts, what is just one substance transported by hemoglobin among the following options: - gas - glucose - proteins - carbon - oxygen - an anion - hair - Energy
oxygen

(Question)
Having food has a positive impact on an organism 's health, and plants and animals are organisms. Given these facts, having food has a positive impact on what health among the following options: - humans - animals - density - gravity - plants - cats - growth - clouds
(Answer)
plants

Ques: Amphibians have permeable skin that easily absorbs substances from the environment, and toads and frogs are both amphibians. Given these facts, what has permeable skin that easily absorbs substances from the environment among the following options: - cats - a fish - toads - ferns - dogs - humans - animals - bats
Ans: toads

(Q).
The vomiting reflex is used to remove toxic material from the stomach before it is absorbed, and nicotine excites the vomiting reflex both in the brain and in the nerves of the stomach. Given these facts, what reflex does nicotine cause because of its toxicity among the following options: - contracting - movement - motion - Vomiting - symptoms - Heart rate - sweating - kill
(A).
Vomiting

Ques:Plant reproduction requires pollination, and pollination is an intricate series of events which ultimately results in plant reproduction. Given these facts, what does the intricate event of pollination help plants do among the following options: - survival - gene flow - propagate - reproduce - spread seeds - root death - water storage - growth

Ans:propagate

Agreenhouse is used to protect plants by keeping them warm, and plants are Earth's producers. Given these facts, what is used to protect producers and keep them warm among the following options: - an electric stove - sweaters - green houses - dirt - animal fur - In the winter - evaporation - plant fans
green houses