What types of gene or protein families may be important for multicellularity? Can we compare the genomes of different multicellular lineages like animals and plants to identify the most important genes critical for multicellularity? Why or why not?
Explain how neurons communicate using action potentials and neurotransmitters. the answer must compare and contrast the similarities and differences between these two means of communication BACKGROUND SUBJECT: Under resting conditions, the concentration of sodium ions — shown here in red — is about 10 times higher outside the neuron compared to the concentration inside. At […]
Describe the role of each of the four biomolecules in our cells. In a sentence or two apiece, describe the main roles of lipids, proteins, nucleic acids, and carbohydrates.
The composition of biological membranes found in archaea is distinct from biological membranes found in bacteria and eukaryotic cells. The unique lipid composition is thought to afford protection from extreme environments that many archaea inhabit. 10. To survive extreme environments archaea must have very stable biological membranes. Explain how archaea could adapt their biological membranes […]
Differentiate between the sympathetic and parasympathetic responses of the Autonomic Nervous system and provide examples of how your body behaves in a certain situation using both types of response.
Discuss the components of the energy drinks mentioned in the article and evaluate which component contributes most to calories. What is a calorie?-A calorie is the amount of heat needed to raise the temperature of one gram of water by one degree Celsius. Our bodies store and “burn” calories as fuel.
What are the genus and species names of the common house mouse and the two species of rats that were discussed in the Chapter 2 lecture? What taxonomical grouping do rats and mice share together? Describe these groups.
How has the replacement of bison with cattle on the prairie impacted the ecosystem? Prairie chicken habitat has been reduced and the species is considered endangered. There has not been an impact because bison and cattle both graze on grass. Cattle have encouraged wolves and grizzlies to return to the prairie. Cattle graze on less grass and prairie grass […]
Use the ecological footprint calculator( https://www.footprintcalculator.org/home/en) to determine how many Earths we would need to live sustainably if everyone lived as you did. You may be surprised. According to the Conversation Ecology textbook, we would need four Earths if everyone lived as the average American did! Next, try the questionnaire again and make one change […]
Define the characteristics that distinguish animals from other clades of Eukarya. Explain the relationships between motility, heterotrophy, and the evolution of elaborate nervous and sensory systems.
