Lesson 1
This process uses a series of yes-or-no questions based only on observable traits to correctly identify an organism.
What is using a dichotomous key?
Which statement best describes a characteristic shared by all animals?
What is they are multicellular heterotrophs with specialized cells?
Which statement best explains how organ systems are organized in vertebrates?
What is cells form tissues, tissues form organs, and organs form systems?
Which statement best explains how alveoli and capillaries work together to maintain oxygen levels?
What is alveoli exchange gases while capillaries transport them through the bloodstream?
Which statement best describes a negative feedback loop?
What is it reverses a change and restores a set point?
Which statement best explains why a sea turtle crawling toward the ocean is instinctive?
What is the behavior occurs without prior learning and is triggered by a stimulus?
Which statement best explains why subjective traits such as color should not be used when constructing a classification key?
What is because color perception may vary and does not provide consistent, measurable evidence?
This structural characteristic is present in a hammerhead shark but absent in a butterfly, and is used to classify the shark as a vertebrate.
What is a backbone (vertebral column)?
Using evidence from the circulatory system, which function directly supports homeostasis?
What is transporting oxygen and nutrients while removing waste?
Using evidence, which interaction occurs during a stressful event?
What is the nervous system signals the endocrine system to release adrenaline?
Using evidence, which example represents positive feedback?
What is a process that amplifies a change and continues in the same direction?
Using evidence, which behavior would most likely be classified as learned?
What is a behavior modified through trial and error or imitation?
Using evidence from the key, which characteristic would best differentiate a beetle from a tick?
What is the presence of six legs and hard wings?
Which statement best explains how bilateral symmetry provides an evolutionary advantage?
What is it allows directional movement and development of specialized head structures?
Construct an explanation for why the respiratory and circulatory systems must interact to maintain homeostasis.
What is oxygen must diffuse into blood and be transported to cells for cellular respiration?
Construct an explanation for how digestion and excretion interact to maintain homeostasis.
What is nutrients are absorbed and wastes are removed to maintain internal balance?
Construct an explanation for how sensory receptors initiate a homeostatic response.
What is receptors detect deviation from set point and send signals to the control center?
Construct an explanation for how group behavior increases survival.
What is group defense and coordinated hunting increase chances of survival?
Construct an explanation for why dichotomous keys rely on physical characteristics rather than habitat or behavior.
What is because physical traits are directly observable and reduce classification error?
Construct an explanation for how phylogenetic trees provide evidence for common ancestry.
What is they show branching patterns indicating shared evolutionary history?
Which claim is best supported by evidence if the excretory system fails?
What is waste products would accumulate and disrupt internal balance?
Which claim is best supported if reaction time increases during danger?
What is neurotransmitters rapidly transmit signals between systems?
Which claim is best supported when insulin lowers blood glucose levels?
What is negative feedback restores normal glucose concentration?
Which claim is best supported if a predator mimics prey calls?
What is false signaling increases predation success?
Which claim is best supported by evidence when two organisms share multiple structural traits?
What is they are likely more closely related than organisms sharing fewer traits?
Which evidence best supports the claim that vertebrates are more closely related to each other than to invertebrates?
What is the presence of a backbone and similar embryonic development?
What evidence supports the explanation that endocrine signaling helps regulate metabolism?
What is hormones act as chemical messengers to control body processes?
What evidence supports the claim that body systems function as an integrated network rather than independently?
What is disruption in one system affects multiple other systems?
What evidence supports the explanation that endotherms maintain internal temperature more consistently than ectotherms?
What is endotherms regulate body heat internally regardless of environment?
What evidence supports the explanation that altruism can evolve in a population?
What is sacrificing individual survival increases overall group fitness?