Identify the animal with the most advanced cephalization

a. a flatworm
b. an arthropod
c. a chordate
d. a mollusk
e. an echinoderm


ANSWER: c

Biology & Microbiology

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While reading an online science magazine, you come across an article on declining turtle populations across the globe. Based on the graph, what would you guess are the two biggest factors in the decline? Choose two.



_____  Harvesting of turtles for food, pets, or medicine
_____  Competition with invasive species
_____  Destruction of wetlands and breeding beaches
_____  Developmental problems due to rising temperatures
_____  Disease from introduced parasites

Additional:
Clarify Questions
· What is the key concept addressed by the question?
· What type of thinking is required?

Gather Content
· What do you already know about causes of extinction?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

The bacterial cell membrane is a site for many enzymes and metabolic reactions.

Answer the following statement true (T) or false (F)

Biology & Microbiology

What is the combined function of the malleus, incus, and stapes?

a. convert the mechanical vibration of the tympanic membrane into a pressure wave in the cochlear duct b. amplify the vibrations of the ear drum c. equalize the pressure on both sides of the tympanic membrane d. convert the oval window's vibrations into vibrations of the tympanic membrane e. dampen the vibrations of the tympanic membrane

Biology & Microbiology

Referring to the above diagram, which

structure is responsible for secreting digestive enzymes into the small intestine and hormones into the blood?

a. D b. E c. F d. G e. A

Biology & Microbiology