Refer to the Following Information to Answer the Question

question 53

Multiple Choice

Refer to the following information to answer the question.
Fossils of Lystrosaurus, a dicynodont therapsid, are most common in parts of modern-day South America, South Africa, Madagascar, India, South Australia, and Antarctica. The animal apparently lived in arid regions and was mostly herbivorous. It originated during the mid-Permian period, survived the Permian extinction, and dwindled by the late Triassic, though there is evidence of a relict population in Australia during the Cretaceous period. Some dicynodonts had two large tusks, extending down from their upper jaws. The tusks were not used for food gathering, and in some species were limited to males. Food was gathered using an otherwise toothless beak. Judging from the fossil record in sedimentary rocks, these pig-sized organisms were the most common mammal-like reptiles of the Permian.
What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth?
1) origin of mitochondria
2) origin of multicellular eukaryotes
3) origin of chloroplasts
4) origin of cyanobacteria
5) origin of fungal-plant symbioses

• A) 4, 3, 2, 1, 5
• B) 4, 1, 2, 3, 5
• C) 4, 1, 3, 2, 5
• D) 4, 3, 1, 5, 2

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Renal Papilla

The apex of the renal pyramid which projects into the lumen of the minor calyx in the kidney, where urine is funneled into the ureter.

Simple Squamous Epithelium

A single layer of flat cells that facilitates diffusion and filtration processes in tissues.

Transitional Epithelium

A type of epithelial tissue that can stretch and change its number of layers, found mostly in the urinary tract.

Areolar connective Tissue

A type of connective tissue that is loose and composed of collagen and elastin fibers, providing support and flexibility.