Which organism in a food web returns matter to the environment? a) decomposer b) producer c) carnivore d) primary consumer

If a standardized residual for a cell is large and positive, what can we conclude?

The cell organelle that produces most of the cell's energy to fuel the cell is the a. nucleus. b. nucleolus. c. mitochondria. d. centrosome.

In Hershey and Chase's experiment investigating which biological molecule carries genetic information, they found that phage DNA with radiolabeled phosphorus was retained in bacterial cells after transduction.

The passage of water through a selectively permeable membrane from a less concentraded region to a more concentrated region is called

Which type of gymnosperm has the least amount of species diversity on Earth today? cycad ginkgo gnetophyte conifer

A. what are two reasons that the prevalence rate of a disease in a community could decrease?

Which is used to make many copies of DNA? A. PCR B. Reverse transcriptase C. Gel electrophoresis D. Nuclear tranfer

Light___. requires a medium to travel is refracted when it bounces off a shiny surface is created by vibrations in electric and magnetic fields moves in longitudinal waves

Skin cancer is to exposure to uv radiation as

What is the function of the sacrum?