Which of the following plants would likely be the first to colonize a newly formed volcanic island (an environment with very little soil and limited room for roots to grow)?
A. vascular plants
B. lycophytes
C. bryophytes
D. gymnosperms
C
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How does inefficient transfer of energy among trophic levels result in the typically high endangerment status of many top-level predators?
A) Top-level predators are destined to have small populations that are sparsely distributed. B) Predators have relatively large population sizes. C) Predators are more disease-prone than animals at lower trophic levels. D) Predators have short life spans and short reproductive periods. E) Top-level predators are more likely to be stricken with parasites.
Most aquatic invertebrates that have a circulatory system use internal or external ____
a. tracheal tubes b. spiracles c. lungs d. gills e. body walls for direct diffusion
In primary culture all cells survive.
a. true b. false
How could lipids lead to a myocardial infarction?
What will be an ideal response?