The structure in cnidarians with both digestive and circulation functions is the ________
Fill in the blank(s) with correct word
gastrovascular cavity
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The data below shows recombination of genes (1-5) according to the amount of time available for transfer of the bacterial chromosome during conjugation between different genetic strains in E coli. Based on these data, which gene is closest to gene 1? (Note: The entire chromosome is transferred in 100 minutes.)
A. gene 2
B. gene 3
C. gene 4
D. gene 5
What is the only known eusocial mammal?
A. humans B. naked mole rats C. Belding's ground squirrels D. prairie dogs E. honeybees
A scientist wants to determine whether a mutant phenotype is due to the loss of gene C or gene D, which are both deleted in a mutant fly with abnormal eyes. Mutant flies with transgenic gene C have wild-type eyes, whereas mutant flies with transgenic gene D have abnormal eyes. What can be concluded from these results?
A) Either gene C or gene D is required for normal eye development. B) Both gene C and gene D are required for normal eye development. C) Gene C is required for normal eye development. D) Gene D is required for normal eye development.
Low density lipoproteins
a. carry cholesterol to the liver. b. line the artery walls. c. are used for nutrition. d. lower blood pressure. e. carry cholesterol and other fats to body cells.