Sodium nitrate and sodium nitrite are added to many meat products, such as ham, bacon, hot dogs, and sausage. these additives to prevent the growth of clostridium botulinum by inhibiting certain iron-containing enzymes of the organism. this is an example of chemical food preservation. which of the following correctly describes a method of chemical control used to control microbial growth? a) surface-active agents, or surfactants, decrease surface tension among molecules of a liquid. b) phenolics exert antimicrobial activity by injuring lipid-containing plasma membranes, which causes the cellular components to leak out of the cell. c) alcohols exert their action by denaturing proteins and dissolving lipids. d) high pressure is used to denature proteins in vegetative cells.

Which organelles are involved in energy conversion

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next