In what ways are the juveniles of direct-development species like their parents, and in what way are they different?
What will be an ideal response?
The juveniles look like their parents and have similar nutritional needs, but they are sexually immature.
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If you break your leg, the bone heals by forming a thickened area around the outside of the bone. Over a period of time, this thickened area:
B) is eaten away by osteoclasts. C) is digested by enzymes secreted by the muscles. D) forms new tendons, ligaments, and/or muscles. E) moves to the skin surface and is shed as dead skin.
Eugenics ____
a. has been scientifically tested and shown to be a valid theory b. is a dubious method for improving the human species through selective breeding c. assumes that human traits are much more influenced by environment than by genes d. had major social ramifications in Germany but is largely dismissed in the United States e. was based on faulty karyotyping and DNA analysis
Choose the activity in column 2 that best matches each enzyme in column 1
A) synthesizes RNA primers for DNA synthesis B) covalently links breaks in the sugar-phosphate backbone C) nicks DNA ahead of replication fork to relax supercoiling in the DNA D) elongates DNA strand E) unwinds double-stranded DNA F) primer removal and replacement 1) helicase 2) gyrase 3) primase 4) DNA polymerase III 5) DNA polymerase I 6) ligase
The ID50 for cutaneous anthrax due to Bacillus anthracis is 10-50 endospores, while the ID50 for inhalation anthrax is 10,000 to 20,000 endospores. This means that __________.
A) not enough information is available to answer this question B) neither cutaneous nor inhalation anthrax can easily be acquired. C) cutaneous anthrax is easier to acquire than inhalation anthrax D) inhalation anthrax is easier to acquire than cutaneous anthrax E) cutaneous and inhalation anthrax are equally easy to acquire