What structures are used to move nutrients to the developing embryo of an angiosperm?
a. pistil
b. sepals
c. style
d. cotyledon
d. cotyledon
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In fruit flies (Drosophila), an embryo during gastrulation:
A. begins enclosing nuclei within their own cell membranes. B. forms its three germ layers. C. becomes organized into distinct segments. D. forms three germ layers and becomes organized into distinct segments. E. begins enclosing nuclei within their own cell membranes, forms three germ layers, and becomes organized into distinct segments.
As a botanist working for a field museum, you spend many hours in the field looking for new species. On a recent trip you may have discovered a new plant species. The plant is very short, and has a stem but no roots or leaves. The stem forks and has branches that have sporangia on the tips. Further analysis reveals vascular tissue. What type of plant might you have discovered?
A. Angiosperm B. Gingko C. Rhyniophyte D. Bryophyte E. Gymnosperm
Regulation of cellular processes via chromatin remodeling or compaction are used by eukaryotic cells but not archaeal cells.
Answer the following statement true (T) or false (F)
Genetic recombination allows bacterial cells to receive small amounts of ________ from other cells or from the environment.
A) protein B) DNA C) RNA D) cytoplasm