Chapter 1 Flashcards by GRACE jerkovich

What is the order of organisms small to large

Atom
Cells
Tissue
Organ
Organ system
Organism
Species
Populations
Community
Ecosystem
Biosphere

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What is the order of organisms from large to small?

Biosphere
Ecosystem
Community
Populations
Species
Organism
Organ system
Organ
Tissue
Cell
Atom

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What is an Atom

join to form molecules which end up making cells

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What are Cells

smallest structural and function unit of organism

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What is a single cellular

one-celled or a single-cell

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what is a multicellular

many-celled or multicell

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What is tissue

a group of similar cells that perform a particle function

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What is an organ

made up of several types of tissue

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What is an organ system

group of organs that work together to accomplish a common purpose

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What is an organisms

a collection of organ systems, for example: human

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What is a species

a group of interbreeding organisms

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What is a population

the members of one species in particular

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What is a community

interacting population

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What is an ecosystem

community of population interacts with the physical environment

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what is biosphere

all of Earth ecosystem

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All life needs

energy the capacity to do work

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How do human gets food

metabolism

What does the metabolism

chemical reaction that occurs within a cell

What is Homeostasis

a constant internal environment ( body temperature 97.7-99.5F)

What does homeostasis need

respond to stimuli internal and external

what are external stimuli

changes outside the body ( removing one hand from a hot stove

What are internal stimuli

changes to conditions inside the body ( high blood pressure

What happens when organisms reproduce

passed down the genetic information to next generation

What happens to fertilized eggs and sperm

makes zygote which then helps rapid growth and development

When growth happens what happens

increase in size and most of the time, the number of cells too

What happens in the development

always changing from fertilization until death growing and healing

Genes can cause

mutations good or bad like environmental changes or cancer

What does DNA stand for

Deoxyribonucleic acid

What is the Evolution

The process by which a population changes over time

What is Natural selection

new variation occurs that allows organisms to capture more resources, those individuals have more offspring

What is Adaptation

population has more individuals with advantageous variation

What does all domain of life belong to

Bacteria, Archaea, Eukarya

What do Bacteria and Archaea have

Prokaryotic cells, single-celled organisms, Lack a nucleus, Various shapes, Adaptations to all environment

What is a domain Eukarya

contains nucleus, some singled celled, Some are multicellular ( like humans)

What are the for Kingdoms of Domain Eukarya

Plants, Fungi, animals,protists

What are plants Domain Eukarya?

Multicellular and photosynthetic organisms

What are Fungi Domain Eukarya

helps decompose dead organisms

What are Domain Eukarya Animals

Multicellular organisms ingest

what is Domain Eukarya Protists

Use photosynthesis ( for food) Example Algae

How is Biodiversity Threatened

Human Activities Pollution Invasive species Climate change Habitat loss