Scientists use observations and data to form and test
During an experiment, which factors are observed and measured?
At which stage of scientific thinking (Forming hypotheses, testing hypotheses, analyzing data, evaluation results, or observing) are scientists most likely to consider the data and conclusions of other scientists to propose new experiments
Which phrase best describes scientific theories
Are never proven
The various parts of Earth's biosphere are connected and...
The variety of life across the biosphere
Similar organisms that can reproduce by interbreeding belong to the same
All the chemical processes used to build up or break down materials are called an organism's
What is the name for genetic changes in living things over time?
A physical environment with different species that interact with one another and with nonliving things
Organisms rely on both negative feedback processes and behavior to maintain
How have computer models expanded biological research?
They stimulate complex biological systems that cannot be studied directly
The study and manipulation of DNA on a molecular level is known as
Exploring how indoor air pollutants lead to respiratory problems is an example of using biology to
Improve human health
The smallest basic unit of matter is the
Formed when an atom gains or loses electrons
Atoms in molecules share pairs of electrons when they make
Gives water many properties that are important to living things
What is unique about carbon?
Four main types of carbon-based molecules in organisms are carbohydrates, lipids, nucleic acids, and
Both animal fat and plant oils are made up of glycerol and
Substances are changed into different substances when bonds break and form during
Chemical reactions that absorb more energy than they release are called
The activation energy needed for a chemical reaction is decreased by a...
Aspect of the chemical reaction that is affected by enzymes
A major principle upon which cell theory is based
All organisms are made of cells
Organelle that is the storehouse for most of a cell's genetic information
Best describes rough ER
studded with ribosomes
An organelle that supplies energy to the cell
An organelle that contains enzymes that break down old cell parts
An organelle that are unique to plant cells
A process that occurs inside the chloroplasts
A protein that detects a signal molecule and performs an action in response is called a..
A solution that is hypotonic to a cell has...
Fewer solutes than the cell
Transport proteins play a role in both
Passive and active transport
Process that requires no energy from the cell
Organelles that are involved in the process called endocytosis
Process that occurs when a vesicle fuses with the cell membrane and releases its contents outside the cell
A hydrogen atom that loses its electrons and becomes positively charged is called a...
Property of water that helps cells maintain a constant temperature, even when chemical reactions release energy
Type of carbon-based molecule that is the first to be broken down by your cells to provide a source of energy
Organelle that converts molecules from the food you eat into usable energy
Plant cells have this but animal cells do not
Cells can be separated into two main categories, eukaryotic and prokaryotic, based on their...
The chemical reactions that take place inside cells require water to act as a...
Photosynthesis is an endothermic reaction because it...
Absorbs more energy than it releases
Dihydrogen Monoxide (not water)
Sugar or Carbohydrates
Nicotinarnide Adenine Dinveleotide Phosphate
Nicotinamide Adenine Dinveleotide Phosphate Oxidase
To Put Together