List several types of fossils. Why are they more commonly found in sedimentary rock?
What will be an ideal response?
Fossils may occur as mineralized hard parts such as shells and bones, imprints, replacement such as petrified wood, trace fossils such as fossilized feces, etc. Igneous rock is formed in conditions of great heat, and is not conducive to form fossils. Metamorphic rock is rock deformed by extreme temperature, pressure, or both, and is also not conducive to fossil preservation.
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Which of the following processes does notcontribute to the formation of a biologically active form of a protein?
A. posttranslational modification of amino acids B. degradation of mRNA C. removal of one or more amino acid residues D. formation of intrachain or interchain disulfide bonds
To maintain their current weight, a person must balance their caloric intake with the ____
a. amount of energy stored in fat b. amount of vitamins and minerals in their diet c. amount of energy provided in their daily diet d. energy expended in their daily activities e. amount of saturated fats in their diet
With negative feedback, a change induces a response that _____ that change
a. increases b. reverses
Characterize the action of interferons
What will be an ideal response?