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Sophia - Environmental Science - Unit 4 Challenge 2. 1 — Climate Change Identify scientific observations that support the idea of climate change. Of the options below, which is used by scientists as evidence of man-made climate change? • a.) The growing number of endangered species • b.) The descending sea levels • c.) The melting of glaciers and polar ice caps • d.) The steep increase in the incidence and severity of skin cancer 2 — Causes of Climate Change Determine the ...

Sophia - Environmental Science - Unit 1 Challenge 2. 1 — Earth's Formation: History of Earth's Formation Determine the date of major events for Earth's history, according to the one-year calendar model. According to the one-year calendar model based on the Big Bang theory, which of the following events happened in September? • a.) The solar system comes into existence. • b.) The Big Bang occurs. • c.) Life appears on Earth. • d.) Homo sapiens appear on Earth. 2 — Earth'...

Sophia - Environmental Science - Unit 1 Challenge 3. 1 — The Impact of Population Growth: Environmental Effects Identify environmental effects associated with given impacts of human population growth. An increased need for water has resulted in __________. • a.) over-reliance on government agencies • b.) depletion of non-renewable fuel sources • c.) multiplied species populations • d.) freshwater and groundwater pollution 2 — The Impact of Population Growth: Projections R...

Sophia - Environmental Science - Unit 3 Challenge 1 1 — Human Population Growth Determine the amount of natural resources required for each person to live. In the United States, the standard of living requires about five hectares per person. If every person on Earth required five hectares to live, we would need __________ to sustain the current population. • a.) five Earths • b.) four Earths • c.) two Earths • d.) three Earths 2 — Agriculture Practices: Plant Sources Id...

Sophia - Human Biology - Unit 3 Challenge 3. 1 — Sensory Receptors Identify which sense receptor is involved in a real-life example. Jordan falls and scrapes his knee. Which type of receptor alerts the brain that the body has been damaged? • a.) Osmoreceptor • b.) Nociceptor • c.) Mechanoreceptor • d.) Chemoreceptor 2 — Somatic Sense Determine how your body detects and interprets somatic sensations. What detects touch, pressure, heat, cold and pain? • a.) Somatosens...

Sophia - Human Biology - Unit 4 Challenge 1. 1 — Lower Respiratory Tract Determine the role of the lower respiratory system in breathing. In which part of the respiratory system does the exchange of gasses between the bloodstream and air occur? • a.) Trachea • b.) Bronchi • c.) Nose • d.) Lungs 2 — Upper Respiratory Tract Identify the role of the upper respiratory tract in breathing. Which part of the upper respiratory system helps produce the sounds necessary for speech?...

Sophia - Human Biology - Unit 5 Challenge 1. 1 — Endocrine System Understand the structure and function of the endocrine system. Which best describes the endocrine system? • a.) A system that helps distribute oxygen and other nutrients to cells all over the body • b.) A system of vessels, nodes, glands and nodules that returns excess tissue fluid to the blood • c.) A system of glands that produces and secretes hormones into the bloodstream • d.) A system that protects the intern...

Sophia - Human Biology - Unit 5 Challenge 3. 1 — Fertilization and Early Development Understand the process of fertilization and the earliest human developments. What body part develops from the ectoderm? • a.) Bladder • b.) Muscle • c.) Pituitary gland • d.) Heart 2 — Implantation Determine the process of implantation. Which of the following statements about ectopic pregnancy is true? • a.) Menstruation occurs and the fertilized egg is expelled from the uterus. • b...

Sophia - Human Biology - Unit 3 Challenge 1 1 — Neurons Identify the components, types, and functions of neurons. Which part of the neuron transmits signals to other neurons, glands or muscle cells? • a.) Axon endings • b.) Dendrites • c.) Cell body • d.) Trigger zone 2 — Membrane Potential and Action Potential This lesson will describe how the differences in concentrations of ions across a plasma membrane set the stage for a nerve impulse. Which is the correct sequence o...

Sophia - Human Biology - Unit 6 Challenge 1 1 — Structure of DNA and Chromosomes Understand the structure of DNA. If one strand of a DNA double helix has bases "ATCCGC," what bases are on the other strand of the helix? • a.) GCCGAT • b.) GCTTAT • c.) TAGGCG • d.) TTCCGA 2 — Mitosis Identify various components of mitosis In which phase of mitosis do the chromosomes line up and become attached to spindle fibers? • a.) Prophase • b.) Telophase • c.) Metaphase •...