ANIMALS REVIEW BIO 9

which of the following traits is not a characteristic of animals

which of the following describes the most important difference between invertebrates and vertebrates?

at some point in their lives, all chordates have a flexible supporting rod in their backs called a

what kind of body plan do most animal phyla exhibit

one evolutionary trend is that as you move from simpler animals to more complex animals

the concentration of nerve cells and sense organs in the head is called

what does evidence show about radial symmetry in invertebrates

the fossil record shows that a type of aquatic arthropod arose 505-440 million years ago and is now extinct. which of today's animals might that ancient organism most resemble?

most of the fossils in the above diagram closely resemble which modern group of organisms?

what feature of the fossil Pikaia led scientists to classify it as a chordate?

during the early Devonian Period, fish were limited in their ability to feed. What adaptation made feeding easier?

to which vertebrate group are birds most closely related

new world monkeys evolved separately from other anthropoid primates because they

scientists think that chimpanzees are more closely related to humans than are any other primates. what evidence best supports this theory?

what does the latest evidence show about hominid evolution

vertebrates digest food in digestive tracts. cnidarians accomplish the same function using

the digestive systems of carnivores typically

as various vertebrate groups evolved, the structure of the heart changed, which of the following describes the hearts of birds and mammals

the circulatory system of vertebrate that uses lungs for respiration has

spiders obtain oxygen using book lungs. insects accomplish the same function using

what are Malpighian troubles

reptiles that excrete uric acid instead of ammonia are able to

why should a person who sells fish and fish aquaria learn about the excretory systems in animals

what is the term for a reaction to a stimulus

all arthropods have similar nervous systems. what are the components of an arthropods nervous system

as a group animals use both sexual and asexual reproduction. which of the following can reproduce asexually

land-dwelling anthropoids use internal reproduction instead of external reproduction. why is internal reproduction advantageous for land animals

what is the best explanation for the difference in food intake needed for endotherms and ectotherms

for insulation, mammals use

in order for multi cellular organisms to maintain homeostasis

to have an impact on the evolution of a species, what criteria does a behavior have to meet?

many species of moths will fly toward bright light, which of the following describes this behavior

all behaviors in which animals change their actions as a result of experience are

what is the most likely reason a bird species migrates

many animals from complex societies of related individuals, which of the following benefits do these societies provide? 1. protection for young animals 2. an outlet for aggression 3. improved hunting ability

the pheromones by which ants transmit information are