Chapter 1 Flashcards
(9 cards)
What are the six defining characteristics of life?
cellular organization, growth and development, reproduction, homeostasis, response to stimuli, and energy processing.
What does hierarchical mean?
arranged in order of rank.
What is the hierarchy of life? Give an example
describes how living things are organized from the smallest to the largest level.
- Atoms: The basic unit of matter, like carbon or oxygen.
- Molecules: Atoms bonded together, such as water (H₂O) or carbon dioxide (CO₂).
- Cell: The smallest unit of life, like a red blood cell.
- Tissue: A group of similar cells working together, like the myocardium in the heart.
- Organ: An organ like the heart, composed of different tissues working together.
- Organ System: Multiple organs working together, like the cardiovascular system with the heart and blood vessels.
- Organism: A single living thing, like a golden tamarin.
- Population: All the organisms of the same species in a given area, like all the golden tamarins in a rainforest.
- Community: All the different populations of organisms in an area, like all the primates in a rainforest.
- Ecosystem: The community of organisms and their nonliving environment, like a rainforest.
- Biosphere: All the ecosystems on Earth, including land, water, and atmosphere.
What is the difference between an autotroph and a heterotroph?
Autotrophs, like plants, produce their own food from inorganic substances using energy from light or chemicals (photosynthesis or chemosynthesis), while heterotrophs, like animals, obtain energy by consuming other organisms.
What is the genetic blueprint of life?
DNA
What are the order and levels of classification?
DKPCOFGS
domain, kingdom, phylum, class, order, family, genus, species
How do you properly write a scientific name?
Genus species. The first word is capitalized, both words italic.
What is the difference between a scientific name and a common name?
A common name is a descriptive term used in everyday language to refer to a plant or animal. A scientific name, on the other hand, is a standardized, two-part name (genus and species) typically in Latin or Greek, used in scientific and technical literature
What are the steps of the scientific method?
Observation: Scientists begin by observing the world around them and noticing phenomena or patterns.
Question: Based on their observations, scientists formulate a question they want to investigate.
Hypothesis: A hypothesis is a testable explanation or prediction about the question.
Experiment: Scientists design and conduct experiments to test their hypothesis.
Data Collection and Analysis: During the experiment, scientists collect data and analyze it to determine if their hypothesis is supported or refuted.
Conclusion: Based on the analysis of the data, scientists draw a conclusion about their hypothesis.
