Orange roughy fish are a fourth-level consumer. We may see fifth - or sixth-level consumers, but not as many as at lower levels on a trophic pyramid. Why are the upper levels of a tropic pyramid limited?

Which amino acid chain will be formed by the codons AAU AAG GAC

During blank, genetic material combines to produce a new organism

What is made from an alloy

An unknown cell is placed in an unknown solution. the cell ends up swelling and then lysing, explodes. which type of solution was this cell placed in? draw your own example of this below.

Define crossing over. In which stage does it occur?

Which of the following is a feeding source for fens? aquifers dexfoliants exfoliants nitrates

What system includes oceans, lakes, rivers, and groundwater? a. geosphere b. hydrosphere c. atmosphere d. biosphere

Fungal spores a. are only asexually produced. b. cannot be seen in a light microscope. c. are used to identify fungi. d. are produced by molds but not by yeasts. e. are only produced under harmful environmental conditions

Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm.

What's the function of rough er