1First section of the small intestine
duodenum
2Scientific name for the windpipe
trachea
3largest lymphatic organ
spleen
4What type of symmetry does an organism that can be cut into equal halves in only one direction have
bilateral symmetry
5What structure exchanges oxygen and nutrients between the blood of an unborn child and his mother
Placenta
6Dome shaped muscle aids in breathing
diaphragm
7Organ that stores bile
gallbladder
8Primary pigment that causes skin color
melanin
9White blood cells that mature in the thymus
B cells
10Structure that controls simple reflexes
spinal cord
11Portion of the body that contains most of the vital organs
Trunk
12Plant family that helps restore nitrogen to the soil
pea family
13Plant tissue that carries food downward to the stem and roots
Phloem
14A scientific idea that has survived many experiments and observations without ever being proven false
Law
15Master gland
pituitary gland
16Type of leaf that only has one blade attached to the petiole
Simple lead
17The branch of biology dealing with interactions among organisms and between organisms and their environment is called
ecology
18Air sacs in the lungs
alveoli
19A sensible explanation to a scientific problem
hypothesis
20Structure connects bones to muscle
Tendon
21The methodical testing of scientific ideas
experimentation
22The process of how water in soil enters a root's root hairs
Osmosis
23Cells that carry oxygen through the blood
red blood cells
24Animals in an environment
Fauna
25Early growth of a seed
germination
26The process of life through new generation of organisms
Reproduction
27the uniting of a sperm cell and an egg cell
fertilization
28Sum of all chemical processes of life
metabolism
29The process by which plants manufacture their food
photosynthesis
30Young plant that is no longer dependent on its cotyledon
Seedling
31A distinct type of organism
species
32Muscles that work without conscious thought
involuntary
33An organism's home within the environment is its
Habitat
34The study of reasoning
logic
35The main divisions of the Skeleton are the axial Skeleton and the —— skeleton
Appendicular
36A ripened flower ovary is a __________________.
fruit
37Hormones released by the islets of Langerhans to regulate sugar levels in the body are ——- and glucagon
Insulin
38The science of classification.
taxonomy
39A creeping stem that runs along the soil surface
stolon
40Scientific term for flowering plant
angiosperm
41Group of cells that are designed to work together as a unit
tissue
42pollination is the transfer of pollen from the ——-
anther to a stigma
43The scattering of seeds by wind, water, animals or people is——dispersal
Agent
44Grains are the fruits of plants from the ________________ family.
grass
45A properly designed experiment should have —— independent variable(s)
One
46A plant with flower heads consisting of disk and ray flowers is from the ________ family.
composite
47The brain and the spinal cord are part of the ——- nervous system
Central
48The path food follows through the digestive system from when it is eaten until the indigestible wastes leave the body is the ——- canal
alimentary
49The joints that give the shoulders and hips their wide range of motion are ——-joints
Ball and socket
50The tissue used by the body to conduct impulses is ———-tissue
Nerve
51Blood enters the heart through the upper chambers which are called ——
atria
52The scientific method was developed by
Sir Francis Bacon
53Concentrates and removes liquid waste
urinary system
54Provides movement for the body
muscular system
55Supports the body and protects vital organs
skeletal system
56Transports nutrients and oxygen to cells and carries waste from cells
Cardiovascular system
57covers and protects the body
integumentary system
58controls other body systems
nervous system
59Root system of a plant develops from the ___________ of a seed.
radicle
60The largest vessels that carry blood away from the heart are called
Arteries
61The ——— connect kidneys to the bladder
ureters
62Plants that live many growing seasons
perennials
63The tough membrane that encloses the heart
pericardium
64Parallel veins, petals in multiples of 3, and a fibrous root systems are all characteristics of
Monocots
65The ——- controls balance and muscle coordination
cerebellum
66Rubbing together Of joints wears away
Cartilage
67Calcium level in the blood is too low, thyroid gland releases a chemical messenger that signals the bones to release calcium into the blood stream. What chemical is released?
Hormone
68Exfoliating removes dead layers of skin cells from the
Epidermis
69The scientific name of the green sea turtle is Chelonia mydas. Chelonia is the green sea turtle's___________________name.
genus