Examine the diagram of a cell above. which part of the organism performs a function similar to the part of the cell marked with the arrow?

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.