Walleye pike are which of the following?
You go on a canoe trip to the Boundary Waters Canoe Area (BWCA) in northern Minnesota. This ecosystem is cold most of the year and receives plenty of rainfall. It has many lakes that are full of walleye pike. You observe walleye eating minnows. In turn, the minnows feed on scuds (zooplankton), which eat algae (phytoplankton).
A. decomposers
B. secondary consumers
C. tertiary consumers
D. primary consumers
E. producers
C. tertiary consumers
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The number of linkage groups in a species that does not have sex chromosomes is:
A. 1n B. 1n + 1 C. 2n D. 2n + 2
Ethanol can be easily produced from:a
photosynthetic pigments. b. crystalline cellulose. c. root systems of plants. d. plant sugars. e. all of these.
In the skin, blood vessels are found in the ________.
A. stratum corneum B. stratum basale C. dermis and subcutaneous layers D. dermis E. subcutaneous layer
How are exocytosis and endocytosis different?
a. Endocytosis transports small molecules into cells, and exocytosis transports large molecules out of cells. b. Endocytosis transports large molecules into cells, and exocytosis transports large molecules out of cells. c. Endocytosis transports small molecules out of cells, and exocytosis transports small molecules into cells. d. Endocytosis transports large mole