Vì sao thường dùng đơn vị là độ hấp thụ để đo độ hấp thụ hơn là % độ truyền qua Select one:
a. Độ hấp thụ có độ chính xác cao
b. %T phụ thuộc vào công suất của bức xạ tới
c. Độ hấp thụ tỉ lệ với nồng độ của chất phân tích, trong khi %T thì không
d. %T không thể đo chính xác bằng độ hấp thụ

Witch theory suggests all living things are made up of cell or cells

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.

(me out over the last several centuries, scientists have made the following broad observations while investigating several branches of the life sciences: -the fossil record shows that different types of organisms have existed at different times in earth's history. -many organisms have similar body structures that seem to be adapted to different ways of living in their environment. -organisms of different species often share similarities in stages of embryonic development. -many species share genetic similarities, and almost all organisms use the same basic building blocks to construct proteins. -often, the extent of two species' similarities can be predicted from their geographic closeness to each other. -a great deal of change has been observed among species that have experienced strong selective pressures through many generations. scientists have carefully considered and rigorously tested the observations listed above. when scientists offer a of these observations, they are making 1.) testable explanation, deductive explanation 2.) scientific interference, scientific law