Types of Contraceptive Methods: Pros & Cons

CONTRACEPTIVES: The use of a device or procedure to prevent conception (pregnancy) as a result of sexual activity Sexual Abstinence Voluntary restraint from sexual intercourse Advantages NO risk of pregnancy NO risk of STIs Appeals to certain religions/beliefs Disadvantages May not experience pleasure Calendar/Rhythm Method No sexual intercourse during ovulation Advantages NO side effects Enhances…

Stress, Stressors, Pain

Nature of stress Stressor: stimuli/ events in environment that place demands on us Response: stress (physiological? Cognitive? Behavioural? Person-situation Interaction: Transaction between organism & environment Stressors (Situations) Eliciting Stimuli: Place demands on well-being & require us to adapt Microstressors: daily hassles Catastrophic Events: occur unexpectedly..affect large #’s of people Major Negative Events: stressful life events…

Endosymbiosis & Lateral Gene Transfer

Endosymbiotic Theory: Mitochondria & Chloroplast are descendants of prokaryotic cells; they share clear structural/ biochemical features with modern prokaryotes. Cyanobacteria: blue-green algae; obtain their energy through photosynthesis Lateral gene Transfer: Gene from Mitochondria & Chloroplast MOVE from Mitochondria & Chloroplast to the nucleus Evidence of Endosymbiosis (Happened after evolution of aerobic prokaryotes) Morphology: Form of…