Anatomy and Physiology
The brain and the spinal cord.
What are the central nervous system?
When excess fertilizers get into waterways, it leads to this phenomenon.
What is eutrophication?
The practice of classifying organisms in accordance with the order in time in which they branched from a phylogenetic tree.
What is cladistics (also accept phylogeny)?
A version of a gene.
What is an allele?
The openings on the underside of leaves that allow for gas exchange.
What are stomata?
The thick filaments in a sarcomere.
What is myosin?
D = 1 - (Σ n(n-1)) / (N(N-1))
What is Simpson's reciprocal index?
Structures in an organism that were useful to an ancestor but are no longer used towards the original function.
What are vestigial organs?
The chromosomes that are not X or Y.
What are autosomes?
The passive movement of water through a small tube against the flow of gravity.
What is capillary action?
The pacemaker of the heart.
What is the sinoatrial node?
The type of symbiosis exhibited between coral and algae.
What is mutualism?
The loss or gain of alleles in a population resulting from migration.
What is gene flow?
The mendelian law that says that alleles separate during gamete formation.
What is the law of segregation?
The vascular tubes that transport sugar and organic substances from the source to the sink.
What is phloem?
The part of the brain that controls the autonomic homeostatic functions of the body including respiration, digestion, and circulation.
What is the medulla oblongata?
This greenhouse gas is strongly associated with anaerobic decomposition.
What is methane?
The rapid evolutionary development of numerous new species from a shared common ancestor.
What is adaptive radiation?
When a pair of chromosomes fails to separate during anaphase.
What is nondisjunction?
The plant hormones that regulate phototropic and gravitropic responses.
What are auxins?
The contraction of the chambers of the heart.
What is systole?
The sum of the dry weight of the organic matter constituting a group of organisms in a particular habitat. Decreases as it goes up the food chain.
What is biomass?
When a population diverges into two species without a geographic barrier.
What is sympatric speciation?
The phenomenon in which a single gene produces multiple phenotypes.
What is pleiotropy?
A channel in the cell wall of plants through which cytoplasm can be passed between adjacent cells.
What are plasmodesmata?