The Human Population growth curve illustrates that
a. humans have reached their carrying capacity.
b. humans have exceeded their carrying capacity.
c. humans are experiencing exponential growth.
d. human population will crash.
e. humans do not have a carrying capacity.
C; Presently, humans' growth yields a J-shaped growth curve indicative of exponential growth.
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Calcium ions are normally in higher concentrations outside most living cells than within cells. Which of the following processes is most likely responsible for this condition?
A) simple diffusion B) facilitated diffusion C) osmosis D) active transport
Explain the significance of apomixis in propagation of plants. Cite two examples of commercial significance. What will be an ideal response?
Commercial micropropagation methods result in cloning of plants.
a. true b. false
What term is used to describe bone cells?
A. osteocytes B. trabeculae C. chondrocytes D. periosteum E. epiphysis