Xylem and phloem are found in __________.
a. the vascular plants, which include lycophytes, ferns, gymnosperms, and angiosperms
b. all plants
c. bryophytes, ferns, conifers, and angiosperms
d. only the gametophytes of vascular plants
e. only the vascular plants with seeds
Answer: a. the vascular plants, which include lycophytes, ferns, gymnosperms, and angiosperms
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Most marine invertebrates are osmoconformers. This means that
A. the osmolarity of their body fluids is equal to that of the osmoregulators who inhabit the same environments. B. that their body fluids contain the exact same solutes in the same concentration as their surroundings. C. the osmolarity of their body fluids is the same as their seawater environment. D. that their body fluids contain the exact same solutes in the same concentration as their cells. E. the osmolarity of their body fluids fluctuates between hypertonic to hypotonic depending on the season and the tides.
Is there any possibility that Ike is a carrier of Hemophilia A?
a. Yes b. No
Which part of the vertebrate immune system protects the body from specific pathogens?
1.Adaptive 2.Innate 3.Phagocytes 4.Physical barriers
Goiter is a disease characterized by an enlarged thyroid gland and results from (check all that apply)
A. excessive thyroid-stimulating hormone production B. iodine deficiency in the diet C. reduced levels of T4 in the blood D. reduced levels of T3 in the blood E. excessive parathyroid hormone production