What level of taxonomy is Hymenostomatida Elongate oval cells with cilia in the oral cavity?
What will be an ideal response?
Order
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What adaptation do alcids have to aid in successful reproduction? a. The males rest eggs on their feet
b. They have a pear shaped egg. c. They lay a single egg at a time. d. They lay eggs in protected areas on the beach.
Populations can be divided into three ecologically important age classes: prereproductive, reproductive, and ________
Fill in the blank(s) with correct word
Which statement best describes a typical food chain?
a. An owl has a positive impact on the grass population. b. An owl has a negative impact on the grass population. c. A carnivore has a negative effect on primary producers. d. Energy can flow back and forth between trophic levels. e. Energy is never lost as it moves from one trophic level to the next.
Which of the following produces the secondary tissues of trees?
a. Sapwood b. Cork c. Vascular cambium d. Heartwood e. Cortex