Biology Chapter 1 Section 1

Metabolism: Scientists can study the reactant and

products of chemical reactions to understand how our bodies work.

Responsiveness: Our nervous system allows us to

sense and respond to our environment

Responsiveness: Organisms need to be able to

sense and respond to their environment.

In Homeostasis, ways we manage outside changes include

shivering, sweating, breathing and excreting

Cellular Oranization:The cell is the

smallest usit of life. If you break it apart, it won't be able to stay alive

Homeostasis:Despite these changes, living things need to work hard to keep their bodies

stable

Living Organisms: All living things must do certain things in order to

stay alive

In Homeostaisis, things that can change on the outside include:

terperature, water balance, waste product concentration adn food molecule concentration

Asexual Reproduction includes these 4 steps

Budding, Binary Fission, Cloning and Frangmentation

Sexual Reproduction includes these 3 steps

Gamete formation, Fertilization and Embryo Development

Heredity: These are questions that geneticists may study:

What are the chances of a genetic disorder being passed on to a child? How can we grow more food? How can we ensure the survival of an endangered species? How can I breed a cow that will make more milk?

Reproduction:In order to ensure the survival of species

all living things must be able to reproduce

Evolutionary biologists study the fossil record

as well as molecules in our bodies to find evidence of evolution.

Interdependance: All living things on Earth are connected, and exist in a

balance between each other and their environments.

Growth and Development: Living things grow

bigger at certain times in their lives.

Homeostasis:The environment inside a living organism is constantly changing as the organism

carries out metabolism, using food and making waste.

Cellular Oranization: Every living thing is composed of one or more

cells

Living Organisms: Living things all describe these 7 characteristics

cellular organization, reproduction, metabolism, homeostasis, heredity, responsiveness and growth & development

Evolution: How do populations

change over time?

Homeostasis: The environment around a living organism is constantly

changing

Metabolism: In order to get energy from their food, living organisms must do a variety of

chemical reactions in their bodies

Metabolism: There is a lot of

chemistry happening in the bodies of living things

Homeostasis: Keeping everything inside the same

despite changes on the outside

Growth and Development: Living things mature and

develop during their lives, in preparation to be successful at reproducing.

Interdependence: As our population increases

ecology is one of the most important fields of study.

Cellular Oranization: All cells come from

existing cells

Living Organisms: All living things need to do these three things to stay alive

get food, get rid of waste and make more of itself

Interdependence: ecologists study how this balance is maintained

how it is damaged and how to restore it.

Metabolism: All living things need energy

in order to stay alive and do the things living things do.

Evolution is a change in the

inherited characteristics of a species over generations.

Heredity: DNA

is the molecule that allows traits to be passed from one generation to the next.

Heredity: Genetics

is the study of the passing of traits from one neration to the next

Cells are tiny structures, covered in

membranes that carry out many functions

Metabolism: The sum of all these chemical reactions is called

metabolism

Reproduction:Some species reproduce asexually, which means that

they make clones of themselves

Heredity: Living organisms need a way to pass information, or

traits from one generation to the next

Reproduction: Some species reproduce sexually, which means

two parents contribute their DNA to make an offspring.

Homeostasis: If balance is lost, the organism

will get sick and usually die if balance cannot be restored.