unit 1
pattern that can be observed in nature
Scientists noticed that animals that live in the South Pole tend to have white coats, and animals that live at the North Pole tend to have white coats.
describe a cell working as part of a larger organism?
a white blood cell fighting infections
describe how mineral fossils commonly form
A dead organism settles down on the bottom of the water. It gets covered by sediment. Soft tissues decompose. Hard tissues are preserved.
mineral fossils commonly form?
A dead organism settles down on the bottom of the water. It gets covered by sediment. Soft tissues decompose. Hard tissues are preserved
what defines behavioral adaptations?
behaviors performed by an organism that increase its fitness
thermometer to measure the temperature of a patient
quantitative
function that all cells carry out to support life
making copies of themselves
explains how radioactive atoms can be used to determine ages of fossils
Radioactive atoms break down at a known rate. Scientists can measure the amount of radioactive atom remaining in a sample, and calculate its age.
modern day animal is the mammoth most likely related to
an elephant
why does hunting in packs for lions increase their fitness
A group of lions would be able to kill prey that a single lion could not. This gives them access to more food resources than they would have if they hunted alone. This means the lions would be healthier, be better fed, and reproduce more. This results in greater fitness.
involve an observation made through a tool
A scientist uses a microscope to determine the structure of some plant cells
what scientist published that all parts of a plant were made up of cells in 1838
Schleiden
pattern in the fossil record
The Earth’s climate changed between hot and cold over time
four eras from oldest to newest
Precambrian, Paleozoic, Mesozoic, and Cenozoic
A learned behavior is an activity or behavior that is taught to an organism. A dog sitting on command is an example.