Ch_1_Life_Organization-module 1 

What are the six characteristics of life?

Organization, Acquisition of materials and energy, Reproduction and Development, Response to stimuli, Homeostasis, Adaptation.

What is the smallest unit considered to be life?

Cells.

What is homeostasis?

The maintenance of a relatively constant internal environment.

How do animals and plants acquire energy?

Animals must eat to obtain energy from food; plants use energy from sunlight to make their own food.

What defines a population in biological terms?

A group of a single species at a particular location.

What is the difference between sexual and asexual reproduction?

Sexual reproduction mixes genes of two parents, while asexual reproduction involves the copying of genes from one individual.

Which group of organisms are categorized under Eukarya?

Eukaryotic organisms, which have more structurally complex cells and a membrane-bound nucleus.

What kingdoms are included in the traditional Eukaryotic classification?

Protista, Fungi, Animalia, and Plantae.

What is the significance of the scientific name of a species?

It consists of two parts: the genus name (capitalized) and the species name (not capitalized), providing a unique identifier for each species.

What is natural selection?

The process whereby individuals better adapted to their environment reproduce more, resulting in the accumulation of adaptations in future generations.

Fill in the blank: The process of maintaining a stable internal environment in an organism is called __________.

Homeostasis.

What is an ecosystem?

An ecosystem is a community of living organisms interacting with their physical environment.

Fill in the blank: The smallest unit considered to be life is __________.

Cells.

What is natural selection?

Natural selection is the process where individuals better adapted to their environment reproduce more, leading to adaptations in future generations.

Fill in the blank: A group of a single species at a particular location is called a __________.

population.

Fill in the blank: The process by which living organisms adjust to changes in their environment over time is called __________.

Adaptation.

What are the six characteristics of life?

Organization, Acquisition of materials and energy, Reproduction and Development, Response to stimuli, Homeostasis, Adaptation.

Fill in the blank: The __________ is the process whereby individuals better adapted to their environment reproduce more, resulting in the accumulation of adaptations in future generations.

natural selection.

Fill in the blank: The process through which animals obtain energy from food is called __________.

Acquisition of materials and energy.

Fill in the blank: The maintenance of a relatively constant internal environment is known as __________.

Homeostasis.

Fill in the blank: The process through which living organisms adapt to changes in their environment over generations is called __________.

Adaptation.

Fill in the blank: The structural and functional unit of all living organisms is __________.

Cells.

Fill in the blank: The scientific classification system includes the kingdom __________ for organisms with more complex cells and a membrane-bound nucleus.

Eukarya.

Fill in the blank: The process through which living organisms convert sunlight into energy is called __________.

Photosynthesis.

Fill in the blank: The group of organisms that are categorized under Eukarya includes protists, fungi, animals, and __________.

Plantae.

Fill in the blank: The characteristic of life that involves responding to environmental changes is called __________.

Response to stimuli.