The organisms shown here are examples of _____
1.fruiting bodies of club fungi
2.diploid ascospores resulting from mitosis
3.branching haploid mycelium
4.a multicelled body consisting of fungus and an alga or bacterium
1
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Answer the following questions true (T) or false (F)
1. Lazzaro Spallanzani was the first scientist to provide evidence disproving the spontaneous generation of microorganisms. 2. The smallest chemical units of matter are elements. 3. The side groups of amino acids can interact with each other and with other molecules.
Brandy is made by the same process as wine, but the alcohol is then concentrated by (fermentation/distillation/filtration).
Fill in the blank(s) with the appropriate word(s).
Hans Spemann and Hilde Mangold conducted pioneering experiments in which they transplanted the dorsal lip of the blastopore in an early gastrula newt to the ventral side of another early gastrula newt. What was the outcome of this experiment?
A. Discovery of Spemann's organizer. B. The development of dorsal structures (neural tube, notochord) on both the dorsal and ventral parts of the gastrula that received the transplant. C. Identification of a morphogenic field in the dorsal lip of the blastopore of an early gastrula. D. Discovery of a group of embryonic cells in the dorsal lip that ultimately produce specific body structures. E. All of the choices are correct.
The mosaic effect of X inactivation in calico cat fur can be observed in
a. skin color only. b. hair color only. c. fingernails only. d. the location of sweat glands. e. all its tissues.