Characteristics of Life
What is the difference between sexual and asexual reproduction?
Asexual - 1 parent
Sexual - 2 parents
What's the difference between cohesion and adhesion?
Cohesion: water sticking to water
Adhesion: water sticking to something else
What is an organism?
Any living thing
A cell can be multicellular & ______________
Unicellular
What does DNA do?
Contains the information that determines the growth and development of organisms.
What 3 atoms make up water?
1 oxygen and 2 hydrogen
What is the difference between unicellular and multicellular?
Unicellular - made of 1 cell
Multicellular - made of many cells
What is the most common feedback loop in homeostasis?
Negative
Name at least 2 different ways organisms get energy
make their own food (plants)
eat other organisms (humans)
break down dead material (fungi)
Water travels up the straw that you put in your drink. The water is sticking to the sides of the straw and the molecules are pulling each other up. What property is this?
Capillary Action
Define surface tension
A special form of cohesion that causes the surface of water to resist breaking (why insects can float)
What organism breaks down their food?
Fungi
What is the difference between an organism responding to the environment versus an evolutionary adaptation
Responses Vary
An organism reacting to something in the moment versus a population changing over a long period of time that help an animal survive & reproduce
What type of bond is between water molecules? What type of bond is within one water molecule?
Between water molecules: Hydrogen bonds
Within water molecules: Covalent bonds (polar because they aren't shared equally!)
What is homeostasis?
Stable internal conditions (temperature, blood sugar, blood pressure)
This type of bond is weak and holds two water molecules together
Hydrogen
What are the 8 characteristics of life?
Organization- (made of cells)
DNA
Reproduction
Grow & Develop
Respond to Environment
Evolution/Adaptation
Require Energy
8. Regulation - (homeostasis)
A child throws salt in the ocean then runs into the water. The salt quickly dissolves and the child begins to cry since the water is so cold. The child is confused since it is hot on the sand. What two properties of water are shown?
Universal Solvent and High Specific Heat
What is metabolism?
The process in which organisms use energy to break down and build up materials
In H2O - Hydrogen has a ___________ charge and Oxygen has a _____________.