How do the seeds of angiosperms differ from those of gymnosperms?
What will be an ideal response?
Angiosperm seeds have ovules that are completely enclosed in a carpel during pollination. Gymnosperms have "naked seeds" where the ovules are not so enclosed.
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Erwin and Scott used an insecticidal fog to knock down insects from the top of a L. seemannii tree
The researchers identified over 900 species of beetles among the individuals that fell. Erwin also projected that this entire tree is host to about 600 arthropod species unique to this tree species. There are approximately 50,000 species of tropical trees. Although it could not be entirely accurate, what would be the best way to estimate the total number of arthropod species? A) Estimate the species density and then multiply by 50,000. B) Multiply 900 by 50,000. C) Multiply 600 by 50,000. D) Divide 900 by 600 and then multiply by 50,000.
A plant that you are studying has sluggish wound healing abilities as well as an inability to store significant food reserves. You would like to enhance these properties. If you could enhance the growth of a tissue to improve these properties, which tissue would you enhance?
A. Parenchyma of the stem cortex. B. Root apical meristem. C. Periderm. D. Lateral meristem.
During elongation, ribosomes catalyze formation of a ____ bond between an amino acid and the growing polypeptide
a. hydrogen b. peptide c. polar covalent d. non-polar covalent e. sulfur
__________ fungi include common molds.
Fill in the blank(s) with the appropriate word(s).