Rio Bio 156 Exam 1 Questions And Answers
List features that distinguish living organisms from nonliving matter. - ANSWER- 1. Cellular basis - All living things consist of one or more cells
2. Requirement for energy and nutrients - Life is sustained by ongoing inputs of energy and nutrients
3....
Rio Bio 156 Exam 1 Questions And Answers List features that distinguish living organisms from nonliving matter. - ANSWER - 1. Cellular basis - All living things consist of one or more cel ls 2. Requirement for energy and nutrients - Life is sustained by ongoing inputs of energy and nutrients 3. Homeostasis - Living things sense and respond to change 4. DNA is hereditary material - Genetic information in the form of DNA is passed to offsprin g Describe the levels of organization in the living world. - ANSWER - Atoms → cells → tissues → organs → organ systems → organism → population → community → ecosystem → the biosphere List the three domains of life and distinguish between each domain. - ANSWER - Prokaryotes are bacteria and archaea. Domain Bacteria: unicellular no nucleus Domain Archaea: unicellular no nucleus but closer to eukarya Domain Eukarya: have nucleus List four kingdoms within the domain Eukarya and distinguish between them. - ANSWER - 1. Fungi can be single or multicellular but digest food outside their body. 2. Plants are multicellular and are photosynthetic. 3. Animals are multicellular and eat other organisms for nutrients. 4. Protists are the unicellular organisms that have a nucleus but do not fit any other category. List and describe the steps involved in solving a problem using hypothesis -based science - ANSWER - observation hypothesis experimental conclusion Describe the concept "an organism is more than the sum of its parts." - ANSWER - organism is part of a more complex organization. These emergent properties go beyond itself. By definition, distinguish between a population, a community, and an ecosystem. - ANSWER - 1. Population: multiple organisms in a single spot 2. community: is made up of populations of different organisms 3. ecosystem: is the interactions between the community and the non -living environment that surrounds it Distinguish between a produ cer, a consumer and a decomposer. - ANSWER - producer:photosynthetic organisms that trap light and convert that light energy into chemical bond energy. such as some bacteria, protists, and all plants consumer: organisms that feed on already -stored food decomposer: bacteria and fungi recycle the dead molecules throughout the bioshpere. Distinguish between a hypothesis and a prediction. - ANSWER - hypothesis: testable explanation of a natural phenomenon. prediction: statement based on hypothesis about a cond ition that should exit if the hypothesis is correct. What is meant by the phrase potentially falsifiable hypothesis? - ANSWER - a hypothesis can be proven that is false Define the term control group and explain the value of a control group in an experimen t. - ANSWER - Group of individuals identical to an experimental group except for the independent variable under investigation To provide a basis of comparison to the experimental group Define the term theory and explain the point in which a hypothesis bec omes a theory. - ANSWER - Suppose a hypothesis stands even after years of tests. It is consistent with all data ever gathered, and it has helped us make successful predictions about other phenomena. Explain how electron configuration influences the chemica l properties of an atom. - ANSWER - Each cloud can hold a determinant number of electrons. When the electron number changes, ions are formed. The number of electrons influences the bonding between atoms. hydrogen bond - ANSWER - The electron from the hydrog en spends most of its time around the oxygen atom creating a partial positive charge on each hydrogen. The presence of additional electrons makes the oxygen partially negative. covalent bond - ANSWER - two atoms share a pair of electrons, so that each atom 's vacancy becomes partially filled ionic bond - ANSWER - Type of chemical bond in which a strong mutual attraction links ions of opposite charge. Describe how water contributes to the fitness of the environment that supports all life. - ANSWER - 1. an excellent solvent 2. has cohesion (insect on water, water roots) 3. stabilize temperature (cool surface)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NURSINGSTUDYSTORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.09. You're not tied to anything after your purchase.
