Plant Taxonomy: Summary & Characteristics

Defining Characteristics of the Plant Kingdom: Multicellular Terrestrial Embryophytes Photosynthetic (almost all) Eukaryotic 4 Major Groups 1.     Non-Vascular Plants (Bryophytes and Friends) No vascular tissue – therefore must rely on surrounding moisture and osmosis to move fluids through their bodies. Small in stature, and simplistic – NO organs (roots, leaves, stems) (Rhizoids = root-like structures…

Why Do Ice Ages Occur: Theories

Plants Theory (recent): Given by University research team Global cooling was caused by reduction of carbon in the atmosphere due to the first appearance of plants (photosynthesis) Less greenhouse gas (carbon) to prevent escape of infrared radiation which leads to cooler temperatures (less heat trapped) Plants (ex. moss) extract calcium, magnesium, phosphorus and iron which…

Global Warming: Effect on the Atlantic Conveyor Belt & Consequences

What is Happening? The Greenland ice sheet is melting. The ice sheet melting will result in less saline (less dense) water entering the North Atlantic Ocean and floating on top of it instead of sinking, causing less and less deep water currents to moderate the globe’s climate, especially Northern Europe’s. Deep water currents are mainly…

Ventricles and Meninges

Ventricles= expansions of the brain’s central cavity Filled with CSF, lined with ependymal cells Continuous with each other, central canal, and spinal cord 1st/2nd= paired lateral ventricles (lie in cerebral hemispheres) [separated by septum pellucidum– transparent wall] 3rd ventricle lies within diencephalon [connected to each lateral ventricles by interventricular foreamen] In midbrain is central cavity…

Acceleration Due to Gravity & Velocity of an Object in Free Fall Lab Answers

Purpose The purpose of this lab was to evaluate the increase in velocity with time during a free fall. Also, to determine the position from the start of the fall. Hypothesis It is hypothesized that the object that is dropped will endure gradual change acceleration in acceleration. The acceleration for the object in the velocity-time…

Diencephalon: Thalamus, Hypothalamus, Epithalamus

Diencephalon: forms central core of forebrain, surrounded by cerebral hemispheres. Made of 3 paired structures: 1) thalamus, hypothalamus, and epithalamus. Thalamus: egg-shaped (known as the inner room) has midline connection called interthalamic adhesion ***EVERY part of the brain that communicated with the cerebral cortex must relay its signals through a nucleus of the thalamus. Hypothalamus:…