What is the difference between a trade-off and an opportunity cost

Jim and tom are trying to determine whether their ideas are scientific or pseudoscientific. Jim's idea is non-testable, and Tom's idea gives different results to different scientists.

What is usually the origin of a non-standard amino acid residue found in a polypeptide chain?

Where do decomposers, such as fungi and bacteria, obtain their food? a) from the Sun b) from primary consumers c) from dead and decaying organisms d) from producers

Which of the following is not an example of a perching bird? a. parrots c. cockatoos b. cockatiels d. flamingoes

This mineral has a metallic luster, and feels very heavy in your hand (as a result of the particular metallic cation in the mineral). it has cubic cleavage. question 5 options:

Under what circumstances does membrane transport always require energy?

What is one disadvantage of using plasma gasification to detoxify hazardous waste?

Euglena use which structure for movement? A. cilia B. flagella C. pseudopods D. they do not move

1. What is a reproductive process in which a cell's genetic information is duplicated and then divided to produce a single identical daughter cell from an outgrowth of a larger parent cell? A. production of spores B. budding C. binary fission D.

True or false? biologists studied the effects of forest fragmentation by calculating the difference between the amount of plant biomass in the edges of forest fragments and the interiors of unfragmented forest.