Download This is the webpage version and there is no scantron. Mark your

This is the webpage
version and there is
no scantron. Mark
your answers directly
on this sheet of
paper. Do not cross
lines
THQ #25 Intro to Animals
Read the chapter first,….. then answer the questions
Look at the illustration in Figure 25–1. Which of the following internal characteristics would you expect this animal to
have?
a. a pseudocoelom
c. an acoelom
b. paired organs
d. a notochord
A coelom is a body cavity
a. completely lined with mesoderm.
b. partially lined with mesoderm.
c. without mesoderm.
d. partially lined with endoderm.
Which of the following variations would you expect to see in land vertebrates?
a. varying numbers of limbs
b. different types of symmetry
c. varying shapes of forelimbs
d. varying numbers of germ layers
Which of the following is a node that you would expect to find on the cladogram for animals?
a. fur texture
c. feather arrangement
b. deuterostome development
d. leg length
Which of the following statements about the cladogram of animals is true?
a. Backbones evolved before segmentation.
b. Radial symmetry appears only once in the cladogram.
c. Segmentation evolved more than once in different branches of the cladogram.
d. All deuterostomes have bilateral symmetry and cephaliza
Which of the above creatures … THERE COULD BE MORE THAN 1 ANSWER…….
Is showing cephalization?
Is an invertebrate?
Has radial symmetry
Has bilateral symmetry?
THQ #25 Intro to Animals
Read the chapter first,….. then answer the questions
. Organisms that must obtain nutrients and energy by eating other organisms are
a. multicellular.
b. autotrophic.
c. heterotrophic.
d. eukaryotic.
A student looks at a slice of tissue on an unlabeled microscope slide. The student concludes the tissue is not from an
animal because the cells in the tissue have
a. membrane-bound organelles.
c. cell membranes.
b. nuclei.
d. cell walls.
In chordates in which pharyngeal pouches develop slits that lead outside of the body, the adult most likely uses what
type of organ(s) to breathe?
a. gills
c. skin
b. lungs
d. nose
Nerves branch in intervals from which of the following structures in a chordate embryo?
a. tail
c. notochord
b. pharyngeal pouches
d. hollow nerve cord
. The notochord is responsible for which function in an embryo?
a. processing wastes
c. respiration
b. structural support
d. processing nerve signals
Which chordate characteristic is visible on the outside of an adult cat?
a. notochord
c. pharyngeal pouches
b. hollow nerve cord
d. a tail that extends beyond the anus
. All animals eat to obtain
a. oxygen.
b. ammonia.
. Muscles work together with a support structure called a
a. segment.
b. skeleton.
c. carbon dioxide.
d. nutrients.
c. blastopore.
d. coelom.
. Animals have an excretory system that eliminates all wastes except
a. oxygen.
c. ammonia.
b. carbon dioxide.
d. nutrients.
. To maintain homeostasis, land animals that hunt and feed in salt water
a. drink salt water.
b. have adaptations that let them get rid of excess salt.
c. choose to eat animals that are not very salty.
d. drink less water to limit salt intake.
Identify the parts to this
diagram AND give the
function of each part