Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Explain how pancreatic hormones example: insulin and glucagon affect blood glucose levels following a meal and when example fasted in the morning.
Fumarase deficiency is an extremely uncommon disease in humans. People with this disease can survive though they are significantly influenced.
What is the most serious threat to amphibians.
Describe the full "loop" from activation of a mechanoreceptor in the arm to the voluntary movement of the arm as a consequence (i.e. explain how somatosensory and motor information are conveyed with
When a male lion successfully challenges another and takes over his pride, one of the first things the new lion does is to kill all of the cubs in the pride. Why would this behavior have evolved? Ho
Some species of lungfish breathe only air; they have no gills, and will drown if forced underwater. Why might it be an advantage for lungfish to breathe air even though they live in water.
Long term food choice exists in a continuum between pure specialists on one end and complete generalists on the other end. Where does your diet fall on this continuum?Explain your answer.
Individuals are often specialized in their diets in the short term than they are in the long term. What is a search image? How does it facilitate short-term specialization.
Suppose a tree squirrel living in the conifer forests near La Grande eats seeds that it extracts from pine cones and fungi that it finds on the forest floor.
Why individuals remain in subordinate situations (for example peripheral males at a lek or lowest tanking individual in a social group lie a wolf pack or lion pride) where they had limited access to
Metabolism uses various ways to ensure that 2 opposing pathways do not occur at the same time. For the following pair of pathways list 2 ways (different cell location, allosteric effector, covalent
Should this right extend to plants and microorganisms? What about the Anopheles mosquito, which transmits malaria? Tigers that sometimes kill people in India? Bacteria that cause typhoid fever? Defe
Cite six ways in which fungi are (a) beneficial to humans, and (b) harmful to humans.
Although amphibians were the first animals to move onto dry land, they were still dependent on water for reproduction and lor respiration. What evolutionary adaptations allowed reptiles to become th
A marine biologist has dredged up an unknown animal from the seafloor. Describe some of the characteristics she should look at to determine the phylum to which the animal should be assigned.
One group has more species than all the other groups, give the name of the Phylum and examples of species found in this group.
Besides his book On the Origin of Species, Charles Darwin wrote many other significant works. Provide the names of three additional significant books or articles that were written by Darwin and prov
This is an overview of group selection and a specific type of behavior involved, kin selection. This explains what kin selection is and gives a couple of examples of organisms that practice this typ
Describe the characteristics of the various domains of living things. Do you notice any similarities or differences between the domains' characteristics? What are some of the similarities or differe
There are nine major animal phyla (actually there are over thirty that are recognized by taxonomists so consider yourself getting off lucky).
An organism can exchange matter and energy with its surroundings. Thus, any change in an organism's energy content must be balanced by a corresponding change in the energy content of the surrounding
Beginning with fertilization, describe the main stages of animal development. Give a brief, simplified description of each stage.
Discuss the rationale behind taxonomists placing sharks and dolphins in different taxonomic groups, even though they are both aquatic, have very similar body forms, and share other traits as well.
Your neighbor added a farmer's porch to his house and painted the ceiling of it blue. When you asked him why, he told you he had read that the sky blue ceiling would fool wasps into thinking it was