Chemical Reactions
All matter is composed of_____ and has mass
atoms
Who is considered the farther or evolution
Charles Darwin
What is the pentadactyl limb
A limb with five digits such as a human hand or foot which are found in many amphibia, reptiles, birds and animals.
What is Newtons first law
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force.
Which is the main gas that makes up the Earth's atmosphere?
nitrogen (N2).
_____ is located left on the periodic table
Metals
Define evolution
The process in which inherited characteristics within a population change over generations
What are homologous structures
similar physical features in organisms that share a common ancestor, but the features serve completely different functions
what is the formula for Newtons 2nd law
F= ma
The concept of gravity was discovered by which famous physicist?
Sir Isaac Newton.
When acid reacts with metals what gas is produced
Hydrogen
What is a common ancestor
when two different organisims are alike due to common dna found in their bloodline
What is the function of the vertebrate heart
central organ of the circulatory system
what is the acceleration of gravity
9.8 m/s
Humans and chimpanzees share roughly how much DNA?
98%
What is another name for combustion
burning
What birds did Darwin collect
Galapagos finches
how many chambers in the heart does a fish, reptile and mammal have
fish= 2
reptile= 3
Mammal= 4
What happens to the frequency as you go from radio to gamma waves
The frequency increases
What name is given for the number of protons found in the nucleus of an atom?
Atomic number
What is a compound
a pure substance which contains 2 or more different kinds of atoms joined by chemical bonds
What is Genetic Variation
something that can be passed on from parents to offspring
define Vestigial structures, give an example
Structures that have no apparent function and appear to be residual parts from a past ancestor
What is the acceleration of gravity
9.8 m/s
How many brains and how many hearts does an octopus have?
An octopus has a total of three hearts. Two of these hearts are responsible for pumping blood to the gills, while the third heart is responsible for pumping blood to the rest of the body. The circulatory system of an octopus is relatively complex compared to other invertebrates.
9 brains.