Hierarchy+ Properties of life
What is the correct property of life in this situation?
A rattlesnake feels threatened by a mountain lion and begins to rattle its tail
response to environment
Diagram how energy moves through a system.
sun - primary producers - 1st consumers - 2nd consumers - tertiary consumers - decomposers constantly - energy constantly lost to heat
the 3 subatomic particles, their charges, and location found in an atom
protons (+) nucleus, neutrons (n) nucleus, and electrons (-) shell
a solution with more H+ ions and less OH- ions is more acidic or basic?
acidic
Identify the independent variable and dependent variable.
One group of plants is given fertilizer with water and the other plant group is given just water. Researchers measure the plant height after a week.
IV - fertilizer - manipulated
DV - height of plant
the structural and functional unit of life
cells
Identify the most recent common ancestors in the phylogenetic tree
where it breaks off
Radioactive isotopes are an unstable isotope - how are radioactive isotopes both good and bad (how are they used)
Give a specific example for the "good" use
used in medicine and smoke detectors
bad because toxic in large amounts - like chernobyl
What characteristic of water makes it a great solvent? This about how sugar and salt dissolves
polar
Draw a graph:
The numbers of eggs laid by turtles increased as the temperature increased.
y axis - number of eggs
x axis - temperature
Order and label these at correct level:
Sea Otters, Sea Urchins, Kelp plants
Kelp forest
Sea Otter
Florida
Nervous system
florida - kelp forest - community - population - organism - organ system
Flow of information
Draw out the steps to an Ionic Bond
electron transfer - charges change (ions) - opposite charges attract
What makes ice less dense that liquid water? How does this benefit marine life?
hydrogen bonds more stable - structured - then insulates underneath for fish and water doesn't freeze
What is a hypothesis?
proposed explanation for a set of observations - proposes a possible relationship between variables
example of evolutionary adaptation - property of life
red pandas tails evolved to be thicker and warmer
Describe the 2 main points/observations of natural selection - that Darwin made
individuals vary in their traits - many are heritable
all species can produce far more offspring than the environment can support
Draw out a nonpolar and a polar covalent bond
- use a real example
nonpolar - same electronegativity
Polar - different electronegativity
How do buffers work in acidic solutions and in basic solutions
bind to H+ in acidity and release H+ when too basic
How is the process of science nonlinear, repetitive, and collaborative
can start at different steps, have to test multiple times, and many people work on this and build from others research
organisms take in energy and use it to power their activities. Some organisms can produce their own food (plants) and some cannot (humans)
What is the proper names/titles for an organism that produces its own food and an organism that cannot?
heterotroph and autotroph
The use for and an example of Systems Biology
- understand the effects in one component in a system changes and how that affects the rest of the system
What bond will likely form when an atom has 4 valence electrons. Why?
Covalent! Carbon - example
How is water able to move up through the roots/stem of a plant?
adhesion to stem and cohesion of those molecules - must be polar too
Eukarya is 1 of the 3 domains we covered. What are the 4 kingdoms in eukarya?
Animals, Plants, Protists, Fungi