What does the globular stage of plant embryo development give rise to?
A. The suspensor of the germinating seed
B. The monocot scutellum
C. A heart-shaped embryo
D. A double embryo
Answer: C
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Which of the following purchases land and preserves it for ecosystems?
a. The Convention on International Trade in Endangered Species of Wild Fauna and Flora b. The Endangered Species Act c. The Nature Conservancy d. The Kyoto Protocol
A region where neurotransmitter molecules
stimulate a neuron is indicated by a. A. b. B. c. C. d. D. e. none of these
When two or more species vie for the same limited resource, _____ occurs.
A. succession B. symbiosis C. coevolution D. stotting E. competition
Mendel's second law of independent assortment has its basis in which of the following events of meiosis I?
A) synapsis of homologous chromosomes B) crossing over C) alignment of tetrads at the equator D) separation of cells at telophase