like the stems of plants, the stalks of fungi grow away from the direction of gravitational pull. Which type of reaction is demonstrated by this behaviors?

Ccr5 is a cell surface receptor protein of white blood cells that attracts them to specific tissue and organs to elicit an immune response. it is also the receptor to which r5 strains of hiv bind to and enter t cells.

What do scientists rely and draw on when they propose a hypothesis?

What makes the beginning of germ layer development in an embryo?

How do the random distribution of chromosomes and crossovers create more variation in the resulting gametes?

If you were to add one of the eight citric acid cycle intermediates to the culture medium of yeast growing in the laboratory, what do you think would happen to the rates of atp and carbon dioxide production?

If a tree ring you are measuring is very thick, what does that mean? A. That year was cold and dry B. That year was warm and very dry C. That year was warm and wet D. None of the above

Which of the following represents the treatment option most likely to avoid the evolution of drug-resistant HIV (assuming no drug interactions or side effects) ?

Which of the following connective tissues is richly vascularized and consists of more cells than extracellular matrix? A) Adipose b) Dense regular C) Areolar D) Hyaline cartilage

Humans and apes have five fingers they can use to grasp objects. do you think these are analogous or homologous structures? explain your answer.

During which two minute time period is the temperature of the water changing fastest?