biology 1
what does the low power objective usually magnify?
4x
K is the symbol for .......
Potassium
........... compounds are made by living things and always contain carbon
Organic compounds
Animals that have a backbone or spinal column
Vertebrates
......... is called the father of heredity.
Gregor Mendel
The total magnification of a microscope with an eyepiece lens that magnifies 10X and a high power objective that magnifies 45X is...
450x
Animals cannot generate their own body heat, but they do regulate it by changing their environment.
Cold-blooded animals
Disaccharides are ........... molecule sugars.
2
What gas molecule is a by-product in photosynthesis.
Oxygen
........... means that one trait masks another
Dominance
The study of the parts of the body is called ....
Anatomy
A/an ............ is a unit of a substance that consists of 2 or more atoms combined chemically
Molecule
A substance that dissolves in a liquid is called the...
Solute
The blood vessel which carries oxygenated blood from the heart to the whole body?
Aorta
How many muscles are there in the body?
A) 500-600
B) 640-850
C) 800-900
D) 550-650
B) 640-850
A change that makes an organism better suited to its environment is called a(n) ....
Adaptation
On the periodic table, elements are arranged in rows in order of their ..........
Atomic numbers
Movement of anything from an area of high concentration to low concentration.
Diffusion
Deoxyribonucleic acid is more commonly referred to as .....
DNA
............. have a pH from 7.1 to 14
Bases
The substances on the left side of an equation, that enter the reaction, are called .....
Reactants
........... is the process that uses light energy to produce food energy
Photosynthesis
The shape of the DNA molecule is called a double ........
Double helix
Type O is found in approximately .......% of the population.
45%