Some cyanobacteria form ________, which are comprised of chains of bacterial cells that are in close contact with one another over a large area.
A. mycelia
B. trichromes
C. cell mats
D. hypha
Answer: B
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A keystone species
a. has a disproportionately large effect on a community relative to its abundance. b. controls the prey species. c. may increase or decrease the number of prey species in a community. d. has a disproportionately large effect on a community relative to its abundance and may increase or decrease the number of prey species in a community. e. has a disproportionately large effect on a community relative to its abundance, controls the prey species, and may increase or decrease the number of prey species in a community
Which of the following groups are made up of almost
exclusively decomposers? a. Plantae b. Fungi c. Animalia d. Monera e. Protista
Following cleavage of the zygote, which of the following is the first to occur?
a. blastula b. gastrula c. neural crest d. morula e. primitive streak
The term interface can be used to describe the surface across which molecules and ions are exchanged, often diffusing between external and internal environments or between organ systems
What part of the respiratory system forms the interface between the respiratory system and the circulatory system? A) Alveoli B) Trachea C) Pharynx D) Bronchioles