What will be the approximate shape of the age-structure diagram of a rapidly increasing population?

A) a rectangle
B) a pyramid
C) an inverted pyramid
D) an hourglass


B

Biology & Microbiology

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The nodes on a phylogenetic tree represent:

A. common ancestors. B. descendant lineages. C. sister groups. D. present-day groups. E. homologies.

Biology & Microbiology

Define aneuploidy and describe the sex chromosome aneuploidies involved in Turner syndrome, Klinefelter

syndrome, and XYY syndrome; list characteristics of each disorderWhat will be an ideal response?

Biology & Microbiology

Which biome receives the lowest annual rainfall?

A) Tropical deciduous forest B) Tropical rain forest C) Chaparral D) Desert E) Savanna

Biology & Microbiology

The chemical signal sent out by macrophages to mobilize the immune system is

A. interleukin-2. B. interferon. C. interleukin-1. D. perforin.

Biology & Microbiology