Scientific method
This is a testable explanation for an observation.
What is a hypothesis?
This is the smallest unit of life.
What is a cell?
This scientist proposed natural selection.
Who is Charles Darwin?
This polysaccharide gives structure to plants
What is cellulose?
A protein loses its shape after being exposed to extreme heat. This process is called:
What is denaturation?
Name one characteristic shared by all living things.
What is growth, reproduction, metabolism, response to stimuli, homeostasis, or evolution?
Name one characteristic shared by all living things.
What is growth, reproduction, metabolism, response to stimuli, homeostasis, or evolution?
Lions (Panthera leo) and tigers (Panthera tigris) belong to the same taxonomic category indicated by the first part of their scientific name.
What is a genus?
These lipids form the main structure of cell membranes.
What are phospholipds?
A drought favors plants with deeper roots because they survive and reproduce more successfully than plants with shallow roots.
What is a positive selective pressure?
The variable that is measured during an experiment.
What is the dependent variable?
A deer responds to the sound of a nearby predator by running away. This characteristic of life is being demonstrated.
What is response to stimuli?
These two taxonomic levels give an organism its scientific name
What is genus and species?
These biomolecules help with inmmunity?
What are proteins?
A hawk catches and eats a mouse.
What is predation?
A scientist hypothesizes that music affects plant growth. One group of plants is exposed to classical music, another to rock music, and a third receives no music. All plants receive the same amount of light, water, and soil. Plant height is measured after six weeks.
What is the dependent variable?
What is plant height (or plant growth)?
A group of organisms of the same species living in the same area is called this.
What is a population?
Organisms with beneficial traits are more likely to survive and reproduce. This process is called:
What is natural selection?
The molecule that stores genetic information.
A researcher investigates whether a new pesticide affects insect survival. Two identical fields are planted with the same crop. One field receives the pesticide, while the other does not. After one month, the scientist counts the number of insects in each field.
Identify the control group.
What is the field that did not receive the pesticide?
A scientist wants to determine whether the amount of sunlight affects tomato production. Three groups of tomato plants receive 4, 8, or 12 hours of sunlight each day.
Identify possible controlled variables.
All plants receive the same amount of water, soil, and fertilizer.
These levels are arranged correctly from simplest to most complex
Phosphorous, Lungs, Zebra, Cellulose, epithelial tissue, cardiac cell, The musculoskeletal tissue
Atom/element - Molecule/ Compound - Cell - Tissue - Organ - Organ system - Individual
A drought causes many plants to die before they can reproduce.
What is negative selective pressure?
The building blocks of proteins.
A shark and a remora fish travel together; the remora gets food scraps while the shark is unaffected
What is Commensalism?