Polyploidy is an important mechanism of speciation in plants

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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How does the action of exocytosis by dendritic cells and macrophages differ from that of neutrophils? 

A. Dendritic cells and macrophages primarily release microbial fragments, whereas neutrophils primarily act as antigen-presenting cells. B. Dendritic cells and macrophages primarily release products of autophagy, whereas neutrophils primarily release products of any cellular origin. C. Dendritic cells and macrophages primarily release products of any cellular origin, whereas neutrophils primarily release products of autophagy. D. Dendritic cells and macrophages primarily act as antigen-presenting cells, whereas neutrophils primarily release microbial fragments.

Biology & Microbiology

The type of connection between the atoms at the point labeled 1 in Figure 3-3 is:

a. a peptide bond. b. a glycoside linkage. c. a disulfide bond. d. a phosphodiester linkage. e. a hydrogen bond.

Biology & Microbiology

What factors determine the tree line in alpine areas? Check all that apply.

A. low temperatures B. high winds C. light availability D. water availability E. pH of soil

Biology & Microbiology

Which structure releases aldosterone?

Select one: a. glomerular (Bowman's) capsule b. proximal convoluted tubule cells c. loop of the nephron (loop of Henle) d. collecting tubule e. adrenal cortex

Biology & Microbiology