Ap Biology Chapter 8

Pili – the extensions of the plasma membrane used in conjugation in bacteria
vacuole – cell organelle that stores materials such as water, salts, proteins, and carbohydrates
regeneration – the ability to regrow a missing part of the body
What are the 6 steps to the scientific Method? – observation, inferences, hypothesis, controlled experiment, collecting data, drawing conclusions
cuticle – (1) In animals, a tough, nonliving outer layer of the skin. (2) In plants, a waxy coating on the surface of stems and leaves that helps retain water.
Epidermis – An outer layer of cells designed to provide protection
organelle – specialized structure that performs important cellular functions within the cell
When people put the data from scientific research together to explain a phenomenon, they are… – developing a model.
The muscular, hollow organ that temporarily holds the urine is the
valence – the bonding capacity of an atom, usually equal to the number of unpaired electrons required to complete the atoms' valence shell
chromosome – a strand of DNA entwined with proteins; usually found within the cell's nucleus
cilia – short structures projecting from a cell and containing bundles of microtubules that move a cell through its surroundings or move fluid over the cell's surface
Pollinator – an insect that carries pollen from one flower to another
Punctuated equilibrium – the theory that drastic changes create new species that then change very little over time
facilitated diffusion – process of diffusion in which molecules pass across a membrane through cell membrane channel
artificial selection – Humans modifying species for desired traits through selective breeding.
The musculаr, hоllоw оrgаn thаt temporarily holds the urine is the
dominant – Mendal's name for a specific trait that occured in the F1 generation; trait that masks another trait
mitosis – nuclear division resulting in two new nuclei with identical genetic makeup, occurs just before cytokinesis
photoperiodism – the physiological reaction of plants and animals to the presence and absence of light
Type II – Curve that represents constant death rate over lifespan small animals and invertebrates.
Macroevolution – an evolution at or above the species level

This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply