A student discovers a mat of green organisms living along the edge of a stream and suspects it is a moss. To confirm that this organism is a moss and not a green alga, he should look for _____.

Fill in the blank(s) with the appropriate word(s).


Answer: an apical meristem and retention of the embryo

Biology & Microbiology

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Brown-eye genes are dominant over blue-eye genes. What is the best explanation for the fact that all the blue-eye alleles have not disappeared in the human population?

A) Some blue alleles are always hidden in heterozygotes. B) The population is likely in Hardy-Weinberg equilibrium for that locus. C) Brown-eyed people sometimes have a blue-eyed parent. D) People with brown eyes tend to choose mates with brown eyes, and blue-eyed people tend to choose mates with blue eyes.

Biology & Microbiology

Photosynthesis is driven by the ________ light spectrum

A) visible B) ultraviolet C) infrared D) microwave

Biology & Microbiology

Restriction endonucleases are obtained from various species of bacteria.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which microbial group is the easiest to selectively target with antimicrobials?

A. Viruses B. Fungi C. Bacteria D. Helminths

Biology & Microbiology