Which of the following would be a biotic factors for a polar bear

Explain the role of lysozyme and the freezing of the cells play in the isolation the gfp from the other bacterial proteins.

Which is a mechanism for restricting the movement of proteins in the plasma membrane? Choose one or more: A. tethering proteins to the cell cortex B. using barriers such as tight junctions C. tethering proteins to the extracellular matrix D.

Brad steps onto a bathroom scale, exerting a downward push of 150 pounds. What force doel the scale exert onto Brad?

Which of these subjects is most likely to be studied in ecology A. The method of water transport in a tree B. a comparison of muscle cells among birds and reptiles C. The circulatory system of earth worms D.

If a person requires greater return when risk increases, thatb person is said to be

What is a valid reason for making efforts to maintain the biodiversity of the planet earth? A Biodiversity makes ecosystems stronger, more stable, and more resiliant to environmental change.

Which materials form igneous rocks upon cooling? Check all that apply. lava magma crystals intrusive rocks sediment from rocks

What determines the blood flow through individual blood vessels in a local system of vessels?

Which of the following organisms is a heterotroph? A. mushroom B. alga C. wheat D. sunflower

13. a liver cell and a nerve cell in you body has the same dna. why does the liver cell have different structures and functions than a nerve cell?