A group of tissues working together for a common purpose is known as a(n) ________
Fill in the blank(s) with correct word
Answer: organ
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Parenchyma ground tissue is the site of photosynthesis
a. True b. False
Which of the following contain enzymes used in the
breakdown of glucose and generation of ATP? a. Golgi bodies b. ribosomes c. mitochondria d. lysosomes e. endoplasmic reticula
When examining an electron micrograph of cells obtained from a new deep-sea life-form, you notice that the plasma membranes appear as two dark lines separated by a lightly stained region
Which of the following investigator(s) used a similar observation as the basis for a model of membrane structure? A) Robertson B) Gorter and Grendel C) Unwin and Henderson D) Overton E) Singer and Nicolson
-ray crystallography revealed several important features of the shape of DNA. Which one of the
following facts about DNA was NOT revealed by X-ray crystallography? A. The shape of the molecule is helical. B. The amount of purine bases equals the amount of pyrimidine bases. C. The molecule has a constant diameter. D. The phosphate groups are located on the outside. E. All of these were revealed by X-ray crystallography.