A new bacteria was introduced to the Antarctic ecosystem which dissolves the outer shells of crustaceans. What animal would be most affected by the death of this organism? Emperor penguin
Fragilariopsis curta
Gentoo penguin
Blue Whale

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

What types of energy transfers and energy transportations are involved in the domino chain reaction?