Which two structures would the scientist most likely see?

The identity of an element depends on the number of Question 4 options: protons in the atom. electrons in the atom. neutrons in the atom. protons and neutrons in the nucleus.

What do we call cells that are differentiated and have a special job? A. They are unidirectional B. They are unorganized C. They are specialized D. They are usually damaged

Which is an innovation of gymnosperms? a) Gymnosperms are the first seed plants. b) Gymnosperms are the first flowering plants. c) Gymnosperms are the first vascular plants. d) Gymnosperms are the first spore plants.

Most biologists argue that the regulation of gene expression is considerably more complex in eukaryotes than in bacteria. list the four factors that in your view make the largest contribution to this perception. select the four correct statements.

Which group of organisms is most closely related to Archeabacteria? a. animalia b. fungus c. plantae d. protista

The denaturation of proteins in a cell would have a profound effect on which of the following cellular activities? Choose all that apply.

Which of the following is not true of pyrimidines? A. example: thymine B. have a single ring structure C. example: cytosine D. example: adenine

Which class of molecules functions as chemical signals?

How many countries does North America have?

How can the mass of an object be determined in a laboratory? The object is weighed. The dimensions of the object are measured. The object is balanced against standard units of mass. The object is balanced against standard weights.