Biology: Organ Systems Overview

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Questions and Answers

How do igneous rocks form, and what factors influence their crystal size?

Igneous rocks form when molten material cools, and the cooling rate affects crystal size, with slower cooling allowing for larger crystals to form.

What is the primary difference between sedimentary rocks and metamorphic rocks in terms of formation?

Sedimentary rocks are formed from the weathering and cementing of other rocks, while metamorphic rocks result from the alteration of existing rocks due to heat and/or pressure.

What evidence supports the theory of continental drift?

Evidence supporting continental drift includes the fit of continental coastlines, similar fossils found on widely separated continents, and geological similarities across continents.

Identify the three types of plate boundaries and describe one natural event associated with each.

The three types of plate boundaries are transform (earthquakes), converging (volcanoes), and diverging (mid-ocean ridges); each type can lead to significant geological events. Signup and view all the answers

What role do fossils play in understanding sedimentary rocks and Earth's history?

Fossils found in sedimentary rocks provide insights into past life forms and environments, helping scientists reconstruct Earth's biological and geological history. Signup and view all the answers

What is the definition of tissue and how does it relate to organs?

Tissue is a group of similar cells that perform a specific function, and multiple types of tissues combine to form an organ. Signup and view all the answers

Identify two key organs of the respiratory system and describe their functions.

The lungs facilitate gas exchange, while the trachea provides an airway for air to enter and exit the lungs. Signup and view all the answers

How do the muscular walls of arteries differ from those of veins?

Arteries have thicker muscular walls to withstand higher pressure from the heart, while veins have thinner walls and valves to prevent backflow in lower pressure conditions. Signup and view all the answers

Define photosynthesis and explain its significance for plants.

Photosynthesis is the process by which plants convert light energy into chemical energy, producing glucose, which is vital for their growth and energy. Signup and view all the answers

What components make up blood, and what is the primary function of each?

Blood consists of red blood cells (transport oxygen), white blood cells (immune response), platelets (blood clotting), and plasma (liquid transport medium). Signup and view all the answers

What is kinetic energy, and can you provide two examples?

Kinetic energy is the energy of an object in motion; examples include electrical energy in moving electrons and thermal energy in a boiling liquid. Signup and view all the answers

Explain how one energy efficiency feature in a house can improve overall efficiency.

Installing energy-efficient windows reduces heat loss, thereby lowering heating costs and enhancing energy conservation. Signup and view all the answers

Describe the layered structure of the Earth.

The Earth is composed of four main layers: the crust (outer layer), mantle (semi-solid layer), outer core (liquid), and inner core (solid). Signup and view all the answers

Flashcards

Igneous rock formation

Igneous rocks form from cooled molten material inside the Earth.

Cooling rate & crystal size

Slower cooling leads to larger crystals in igneous rocks.