Think about your favorite kind of pizza. How is your body provided with each of the four major biological molecules when you eat this pizza? Why is it important that your food contains these biological molecules?
What will be an ideal response?
This is an open-ended question, but the best responses would look something like this:
carbohydrates - from crust
proteins - from meat and cheese
lipids - from fats in the meat and cheese
nucleic acids - from the nuclei of all cells that were once living (meat, vegetables, etc.)
It is important to take in these biological molecules in your diet because they provide energy (especially carbohydrates) and they provide the raw materials necessary for your body to build new tissues for growth, maintenance, and repair.
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A) terrestrial biosphere B) rocks and sediments C) aquatic biosphere D) fossil fuels
A variety of finch species within the Hawaiian Islands have acquired different types of beaks needed for utilizing specific food resources. The process by which these different species of finches came about is likely to have involved
A. natural selection. B. evolution. C. an accumulation of harmful genetic mutations. D. both natural selection and evolution. E. None of these choices are correct.
Karyo types generally remain constant within a species because
A) rearrangements occur frequently. B) changes in chromosome number occur infrequently. C) genetic instabilities produced by genomic changes are usually at a selective disadvantage. D) genetic imbalances are often at a selective advantage.
A quick warming of chicken or eggs is enough to kill Salmonella.
Answer the following statement true (T) or false (F)