You Are Looking at a Sample from the Top Green

question 66

Multiple Choice

You are looking at a sample from the top green layer of a colorful bacterial mat. Using phase contrast and fluorescence microscopy, you see evenly spaced cells in the middle of a filament that are slightly smaller than the others. The smaller cells are not fluorescent, indicating they lack photosystem II, but the rest of the filament is fluorescent. What type of filamentous bacteria are you most likely looking at?

• A) purple nonsulfur bacteria
• B) green sulfur bacteria
• C) Acidobacteria
• D) Cyanobacteria

Recognize the socioemotional changes and challenges faced by older adults including cohabitation, marital satisfaction, and sexuality.

Appreciate the importance and dynamics of family and social support systems for the wellbeing of older adults.

Identify the psychological and cognitive changes associated with aging, including self-concept and personality traits.

Describe the concept of successful aging and the factors that contribute to it, including lifestyle choices and psychological resilience.

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Definitions:

Daily Calories

The total amount of energy, measured in calories, that a person consumes through food and drink over the course of a single day.

Genetic Modification

The manipulation of an organism's genes using biotechnology, often to enhance or introduce specific traits not naturally occurring in the organism.

Herbicide-Resistant

Refers to plants that have developed the ability to survive applications of herbicides meant to kill them.

Fertilizer

A chemical or natural substance added to soil or land to increase its fertility and promote plant growth.