Describe the function of the thymus as it relates to the lymphatic system.
What will be an ideal response?
The thymus has two main functions in regards to the lymphatic system:
1. Produces thymatic hormones such as thymosin.
2. Immature T lymphocytes migrate from the bone marrow through the bloodstream to the thymus, where they mature.
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What products of light reactions of photosynthesis are used in the Calvin cycle?
A. oxygen and protons B. carbon dioxide and water C. ATP and NADPH D. ADP and NADP E. glucose and oxygen
Which of the following statements explains why all of the F1 females from a cross between a red-eyed homozygous female and a white-eyed male are heterozygous?
A. The male parent provides them with a white-eye allele on the X and a red-eye allele on the Y. B. The male parent provides them with a white-eye allele on the X, and the female parent provides them with a red-eye allele on the Y. C. The male parent provides them with a white-eye allele on the X, and the female parent provides them with a red-eye allele on the X. D. The female parent provides two X chromosomes to each daughter who both carry the red-eye allele. E. None of the answer options is correct.
While conducting a plant diversity survey in a temperate rainforest in Washington state, you come across a number of individuals of a low-lying plant species. Back at the lab, tests indicate that the majority of the plant material is haploid. The plant you discovered is likely most closely related to
A. complex streptophyte algae. B. sphagnum moss. C. lycophytes. D. conifers. E. daisies.
A flagellated protist that is sexually transmitted is
A. Entamoeba. B. Giardia. C. Trichomonas. D. Plasmodium. E. Paramecium.