A force that tends to pull together the matter in stars is

a. gravity

b. nuclear fusion

c. expansion

d. nuclear fission

Information flow within a single neuron moves from structure to structure in the sequence of?

Do protists have cell walls ... if so what is it made of

Consider the table. Types of Bacteria FormShapeAssociated disease CoccusXStrep throat BacillusRod shapedY SpirillumSpiralCholera Which best describes X and Y? X = Spherical; Y = E. coli X = Comma shaped; Y = Whooping cough X = Oval shaped; Y = S.

Genetic engineering, gene splicing, and recombinant DNA technology are all techniques used in biotechnology. Before using these technologies, however, what is required? A. specific scientific knowledge about the natural system being modified B.

What are the features of typical protist

How does a vascular plant's phloem differ from its xylem? A. Phloem is found only in the leaves. B. Only phloem transports water. c. Only water flows through phloem. D. Phloem has a two-way flow of materials,

Many mutations have been identified in the lac operon. A particular mutation prevents the repressor protein from binding to the operator under all circumstances.

What is the independent variable in this experiment? A) temperature B) Number of chirps C) Number of crickets D) Location of the laboratory

The parents of a client with a mental illness being cared for at home tell the nurse that they have been feeling overwhelmed lately. they say, "we need to get away for a few days to recharge ourselves.

Explain how the conversion of wetlands to farmland has impacted streams and rivers.