a type of root system in which small secondary roots branch from a large, straight primary root
What is taproot system
100
largest of the chest muscles, which serve to pull arms forward (push-ups)
What is pectoralis major
100
the cells of the retina that distinguish color & provide the sharpest vision
What is cone cells
100
the large fin at the rear of a fish that serves as the fish's propeller & rudder
What is caudal fin
100
fluid medium of the cell
What is cytoplasm
200
tiny, tubelike projections that extend from epidermal cells of a root & serve to absorb water & minerals
What is root hairs
200
thick sheet of muscle that forms the floor of the thoracic cavity & functions in breathing
What is diaphragm
200
the three layers of skin
What is epidermis, dermis & subcutaneous layer
200
an animal that regulates its temperature by external factors, so that its temperature fluctuates with its surroundings
What is poikilothermic
200
the process by which cells in a developing embryo take on specialized forms to become blood cells, nerve cell, etc.
What is differentiation
300
transports food downward from leaves to rest of plant
What is phloem
300
Y-shaped protein molecules produced by white blood cells that help fight infections
What is antibodies?
300
tiny capsules of genetic info that cause disease by reprogramming the machinery of living cells
What is viruses
300
insect begins as wormlike larva that forms cocoon & emerges as mature adult
What is complete metamorphosis
300
Name three differences between RNA & DNA.
What is two strands to one; thymine to uracil; deoxyribose to ribose; found in nucleus to nucleus, cytoplasm & ribosomes; one type to three; replicates to transcribed
400
flowering plants that reproduce by means of seeds covered by fruits
What is angiosperm
400
small, bean-shaped organs of the lymphatic system that serve as "bases" & staging areas for WBC
What is lymph nodes
400
the working units of the kidneys that do the job of filtering wastes from the blood
What is nephrons
400
the organ that allows a fish to adjust its buoyancy so that it can remain stationary at given depth
What is swim bladder
400
the process by which an RNA copy is made of a DNA template
What is transcription
500
xylem & phloem are examples of this tissue
What is vascular tissue?
500
tiny air chambers in the lungs that allow gases to be exchanged between the air & the blood
What is alveoli
500
the "master gland" of the body, which produces growth hormone & gonadotropins
What is pituitary gland
500
the order of insects that includes grasshoppers, crickets, mantids & roaches
What is Orthoptera
500
type of inheritance in which single trait is controlled by many different pairs of genes