Quiz 4 Flashcards
(41 cards)
Plants that are vascular, produce seeds, flower and produce fruit.
Angiosperms
Annelids posses which type of muscular arrangement?
Both (Longitudinal & Circular/ Transverse)
Ants, bees, wasps are classified into which of the following Orders?
Hymenoptera
Bivalves have a ___ circulatory system, cephalopods have a ___ circulatory system.
open, closed
Terrestrial insects, such as grasshoppers, utilize tracheal system for gas exchange. t/f
True
What does an entomologist study?
Insects
Which of the following is pseudocoelomate?
Nematoda
What is the function of spiracles?
Spiracles are a series of “portal” like openings located laterally along the abdomen of insects that functions in conjunction with the tracheal system for gas exchange.
Sometimes over-hunting/exploitation of a species can severely reduce the size of a population. For example, both California Sea Otters and Northern Elephant Seals were historically over exploited during the mid to late 19th century in the Northern Pacific. After protection from hunting, those populations that survived were a very small subset of the original wide-ranging populations, and possessed a fraction of the previous genetic diversity. The subsequent random assortment of survivors may have different allelic frequencies than what was previously present, most likely significantly reduced in genotypes. This is referred to as:
the “Bottleneck Effect”
The “proposed” speciation mechanism by which African Cichlids diversified in Lake Victoria within the same geographic area.
Sympatric Speciation
The biggest threat to global biodiversity is…
Habitat Loss/ Fragmentation/ Degradation
The cattle egret, Bubulcus ibis, often accompany cattle or other large mammals, catching insect and small vertebrate prey disturbed by these animals. This species maintains a special relationship with cattle, which extends to other large grazing mammals; wide human farming is believed to be a major cause of their suddenly expanded range. The cattle egret removes tick and flies from the cattle and consumes them. this benefits both species, but it has been implicated in the spread of tick-borne animal diseases. how would you categorize the symbiosis between cattle egrets and cattle?
Mutualistic
The function of flame cells is…
A and C (excretion of metabolic wastes and osmoregulation)
The oldest insects date back to the…
Devonian period
What is the function of the “tegument” in trematodes & cestodes?
Protection from host
What is the most diverse, successful group of ray-finned fishes?
Teleostei
What is the study of the geographic distribution of plants called?
Phytogeography
What is the term called when the adult form retains juvenile characteristics?
C and D (Neoteny & Paedomorphosis)
When early comparative anatomists, such as George Cuvier, examined fossil specimens of Ichthyosaurs (fish lizards), extant sharks and modern dolphins, a potential misconception in constructing a phylogeny that included all three of these animal groups was based on similar morphology. In fact, similar anatomical solutions to similar environmental/habitat conditions occur in distantly related taxa. What are these similar anatomical features called?
Analogous structures
Which scientific field seeks geo-physical explanations for disjunct distributions of organisms?
Vicariance Biogeography
“Brittle Stars” are placed into which of the following?
A and B (Stelleroidea & Ophiuroidea)
A species that plays a major role in determining the structure of its ecological community is…
A keystone species
Spiky Yellow Worm: Phylum? Class? Habitat? Lateral structures that are used for locomotion?
Annelida, Polychaeta, Marine, Parapodia
What does and “Arachnologist” study?
Ticks and mites
