Two replicated chromosomes are joined together at a region on the chromosome called the ________
Fill in the blank(s) with correct word
centromere
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Which number identifies the promoter?
a. 1 b. 2 c. 3 d. 4 e. 5
Four of the five adaptations below allowed animals to live on land. Select the exception
a. eggs that can develop out of water b. waterproof skin c. lungs d. ectothermy e. internal fertilization
The connective tissue in bones where blood cells are made is the ____________________. Fill in the blank(s) with the appropriate word(s)
Which of the following does not require expenditure of energy?
A. flow of sucrose and other carbohydrates once inside the sieve tubes B. opening or closing stomata C. accumulation of ions inside a cell D. the loading and unloading of carbohydrates from the sieve tubes E. transport against a concentration gradient