Echinodermata – Phylum including the sea stars, sea cucumbers, sea urchins, and sea lilies; first animals to have an endoskeleton
phagocystosis – process in which extensions of cytoplasm surround and engulf large particles and take them into the cell
the legend – Short descriptive narrative concerning the graph's data
Internodal tissue – is found on the stem between nodes.
Inactivated vaccine – Made up of dead virus particles, it cannot reproduce, but still provokes a response by the immune system.
trait – a characteristic that an organism can pass on to its offspring through its genes
Inhalation occurs when alveolar pressure decreased below ______________.
What is -OH – functional group hydroxide
siphon – Part of the system used to pump water through a clam, so that it can strain out organic material for food.
mitosis – process in which the nucleus divides to form identical nuclei
What is a control group? – It provides a normal standard against which a biologist can compare results of the experimental group.
Inhаlаtiоn оccurs when аlveоlar pressure decreased below ______________.
bionomial nomenclature – Scientific name.
zygote – fertilized egg formed when egg and sperm cell fuse
enhancer – A eukaryotic DNA sequence that helps stimulate the transcription of a gene at some distance from it. An enhancer functions by means of a transcription factor called an activator, which binds to it and then to the rest of the transcription apparatus. See silencer.
root cap – A structure made up of dead cells that protects the meristematic region on the tip of the root.
pumps (ion or molecular) – Any of several molecular mechanismsin which ions or molecules are transported across a cellular membrane requiring the use of an energy source (e.g., glucose,sodium[Na+], calcium[Ca+], and potassium[K+]).