Q: Migration and hibernation are examples of behaviors that occur on what temporal basis? Read this paragraph and choose the correct option from the provided answers: Many animal behaviors occur in repeated cycles. Migration and hibernation are examples of behaviors with annual cycles. Sleeping and waking are examples of behaviors with daily cycles. Choices: - nocturnal - weekly - daily - annual A:
annual

Q: What are the only invertebrates that can fly? Read this paragraph and choose the correct option from the provided answers: The main reason that insects have been so successful is their ability to fly. Insects are the only invertebrates that can fly and the first animals to evolve flight. Flight has important advantages. It's a guaranteed means of escape from nonflying predators. It also aids in the search for food and mates. Choices: - birds - amphibians - mammels - insects A:
insects

Q: Q: What part of an animal helps to prevent water loss and gives support and protection? Read this paragraph and choose the correct option from the provided answers: The arthropod exoskeleton consists of several layers of cuticle. The exoskeleton prevents water loss and gives support and protection. It also acts as a counterforce for the contraction of muscles. The exoskeleton doesn't grow as the animal grows. Therefore, it must be shed and replaced with a new one periodically through life. This is called molting . Choices: - membrane - cuticle - backbone - exoskeleton A:
A: exoskeleton

Question: Q: Because action potentials are so brief, a neuron can produce hundreds per what? Read this paragraph and choose the correct option from the provided answers: Choices: - day - minute - lifetime - second A:
Answer: second

*Question*
Q: Chemical elements and water are recycled through what cycle? Read this paragraph and choose the correct option from the provided answers: Chemical elements and water are recycled through biogeochemical cycles. The cycles include both biotic and abiotic parts of ecosystems. Choices: - biogenic - evaporation - dynamical - biogeochemical A:
**Answer**
biogeochemical

Q: Q: What term is also known as the contact activation pathway? Read this paragraph and choose the correct option from the provided answers: Intrinsic Pathway The intrinsic pathway (also known as the contact activation pathway) is longer and more complex. In this case, the factors involved are intrinsic to (present within) the bloodstream. The pathway can be prompted by damage to the tissues, resulting from internal factors such as arterial disease; however, it is most often initiated when factor XII (Hageman factor) comes into contact with foreign materials, such as when a blood sample is put into a glass test tube. Within the body, factor XII is typically activated when it encounters negatively charged molecules, such as inorganic polymers and phosphate produced earlier in the series of intrinsic pathway reactions. Factor XII sets off a series of reactions that in turn activates factor XI (antihemolytic factor C or plasma thromboplastin antecedent) then factor IX (antihemolytic factor B or plasma thromboplasmin). In the meantime, chemicals released by the platelets increase the rate of these activation reactions. Finally, factor VIII (antihemolytic factor A) from the platelets and endothelial cells combines with factor IX (antihemolytic factor B or plasma thromboplasmin) to form an enzyme complex that activates factor X (StuartPrower factor or thrombokinase), leading to the common pathway. The events in the intrinsic pathway are completed in a few minutes. Choices: - central pathway - internal pathway - identical pathway - intrinsic pathway A:
A: intrinsic pathway