The food web represented above does not include bacteria and fungi. Which of the following best describes a consequence of having no bacteria and fungi in the food web?
(A) Grasses will have no direct access to chemical components recycled from dead organisms.
(B) Rabbits will have no direct access to energy absorbed from secondary consumers.
(C) Shrews will have no direct access to matter transferred from tertiary consumers.
(D) Hawks will have no direct access to nitrogen acquired from the atmosphere.
Answer: (A) Grasses will have no direct access to chemical components recycled from dead organisms.
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The intra-alveolar pressure is determined by what two factors?
A) quantity of air in the alveolus and volume of the alveoli B) dead air space and atmospheric pressure C) elastic recoil and intrapulmonary pressure D) perfusion pressure and elastic recoil E) functional residual capacity and elastic recoil
The body uses atoms in different ways to accomplish different tasks. For example, one portion of the body's calcium supply strengthens bones, whereas another portion combines with proteins to stimulate blood clotting after tissue injury. Which of the
following statements provides the most logical chemical explanation of calcium's ability to perform such different functions? A) The bone contains calcium salts, which are less reactive than the calcium ions found in the blood. B) The calcium in blood is a more reactive form of the atom and therefore has fewer protons than the calcium in bone. C) There are many different isotopes of calcium, and the most reactive isotope is found in the bone. D) The calcium in blood has a lighter atomic mass than the calcium in bone and is in a more reactive form.
What is the digestive system microbiome?
A) all of the "good" bacteria living in a person's digestive system B) all of the "bad" bacteria living in a person's digestive system C) all of the bacteria living in a person's digestive system