Biology
By definition bacteria called anaerobes don't need this to live
Oxygen
This type of bond is formed by 2 atoms each contributing 1 electron to a shared electron pair
A COVALENT BOND
There are 3 main types of these in the body--smooth striated & cardiac
Muscle
Linked to some birth defects aneuploidy is the condition of having an abnormal number of these
CHROMOSOMES
In taxonomy animals are classified by domain then kingdom then this subdivision
PHYLUM
This reaction occurs in the chloroplasts the oval-shaped green organelles in plants
PHOTOSYNTHESIS
The atoms of this element have only one proton & no neutrons in the nucleus
HYDROGEN
Like nails horns & hair feathers contain this fibrous structural protein
KERATIN
2 genetically identical daughter cells are produced in this process of cell duplication
MITOSIS
When you identify a bird as Cinclus mexicanus you're using this system of nomenclature that Linnaeus helped developed
BINOMIAL (NOMENCLATURE)
Part of biology this -ology studies hosted organisms like tapeworms
PARASITOLOGY
This element makes up about 78% of normal dry air by volume
NITROGEN
Your floating ribs are so named because their anterior ends don't attach to this bone
THE STERNUM (OR BREASTBONE)
In 2011 virologist Ron Fouchier made bird flu more contagious by introducing these genetic changes--bad idea some say
MUTATIONS
Ascomycetes the largest class in this kingdom includes edible types like truffles
FUNGI
Heliotropism is the ability of leaves & stems of plants to grow towards this
SUN
It's 1 or 2 or more atoms of the same element that differ in atomic weight
AN ISOTOPE
The visceral pleura is a thin tough membrane that covers this pair of organs
THE LUNGS
Around 1940 scientists found that mutations in these chromosomal units result in defective enzymes
GENES
This oxygen-carrying substance gives red blood cells their colour
HEMOGLOBIN
Found even in dinosaurs this world's oldest known disease is still considered incurable
ARTHRITIS
When placed in the flame of a Bunsen burner copper produces a blue flame; sodium this colour
YELLOW
Structure that transports a certain fluid from the liver to the duodenum
THE BILE DUCT
The homozygous dominant genotype of achondroplasia will result in
DEATH
The standard divisions in biological classification
KINGDOM PHYLUM CLASS ORDER FAMILY GENUS SPECIES