30 Questions
What is the approximate age of the beginning of life on Earth?
3.8 billion years ago
What is the primary characteristic that distinguishes multicellular organisms from unicellular organisms?
The presence of multiple cells with specialized functions
What is the term for organisms that obtain energy by consuming other organisms or organic matter?
Heterotrophic
What is the approximate time period when the evolution of multicellular organisms occurred?
1.5-0.5 BYA
What is the characteristic that is shared by all living things?
They are all composed of cells
What is the term for the process by which cells become specialized to perform specific functions?
Cell differentiation
What is the result of repeated cell divisions without cytoplasmic division?
A coenocytic cell with many nuclei
Which characteristic of living organisms refers to the ability to react to environmental factors?
Irritability
What is the term for the intracellular movement of protoplasm?
Cyclosis
What is the result of cell nuclei division and cell cytoplasm division?
A multicellular organism with separate cells
Which of the following is NOT a characteristic of living organisms?
Electromagnetism
What is the term for the sum total of chemical reactions in an organism?
Metabolism
What is the level of organization that consists of a group of similar cells that perform a specific function?
Tissue
What is the principle that describes the relationship between the structure and function of an organism?
Form fits function
What is the molecule that carries genetic information and is passed from parents to offspring?
DNA
What is the level of organization that consists of several organs that work together to perform a specific function?
Organ system
What is the phrase that describes the ability of organisms to reproduce their own kind?
Like begets like
What is true about the environment and an organism?
An organism interacts with its surroundings
What do plants obtain from their surroundings to make food?
Water, nutrients, carbon dioxide, and energy
What is the result of plants releasing oxygen?
Other organisms use it for their own survival
What is the primary source of energy in an ecosystem?
Sunlight
What is the process by which organisms maintain a stable internal environment?
Homeostasis
What is the outcome of a plant's roots breaking up rocks and releasing acids?
The soil becomes more acidic
What is the brain's response when the body temperature varies slightly from 37°C?
It signals the skin to produce sweat
What is the theory that proposes that life on Earth began from rocks and other debris from impacts?
Panspermia (Cosmozoic Theory)
What is the hypothetical phase of the evolutionary history of life on Earth in which self-replicating RNA molecules proliferated?
RNA World
What is the theory that proposes that life on Earth began due to lightning striking through rich volcanic clouds?
Electricity
What is the theory that proposes that Earth's oceans were covered with ice, which may have protected the compounds, allowing them to interact and create life?
Beneath the Ice
What is the theory that proposes that the primordial soup simply continued to react with itself over time, producing more and more complex molecules, yielding life?
Simple Metabolism and Reactions
What contains vast and diverse ecosystems?
Submarine Hydrothermal Vents
Explore the history of life on earth, from the emergence of basic microbes to the diversity of species today. Identify the key events and evidence that support the evolution of life. Understand the significance of studying the history of life on earth.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
