100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Bio 141 Unit 1 Exam (1). $7.99   Add to cart

Exam (elaborations)

Bio 141 Unit 1 Exam (1).

 1 view  0 purchase
  • Course
  • Institution

Bio 141 Unit 1 Exam (1).

Preview 3 out of 17  pages

  • June 8, 2024
  • 17
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
avatar-seller
Bio 141 Unit 1 Exam
organism - CORRECT ANSWER-living entity made up of 1 or more cells

what are the 5 fundamental characteristics of an organism; briefly describe each
- CORRECT ANSWER-1. energy: to stay alive and reproduce; usually acquired
2. cells: membrane bound units, make up organisms
3. information: hereditary or genetic information encoded in genes
4. replication: every organisms goal is to reproduce and replicate itself
5. evolution: organisms are products and continue to evolution

theory - CORRECT ANSWER-explanation for every general class of
phenomenon or observations that are supported by a body of evidence

are theories absolutely certain, well tested? - CORRECT ANSWER-yes, yes

what did robert hook discover - CORRECT ANSWER-hey saw cells under the
microscope

what did anton von leeuwenhoek discover - CORRECT ANSWER-saw single
celled organisms

Germans discovered what about organisms and cells - CORRECT ANSWER-all
organisms had cells

cell - CORRECT ANSWER-highly organized compartment bounded by a thin
flexible structure called a plasma membrane and contains concentrated
chemicals in an aqueous solution

spontaneous generation - CORRECT ANSWER-cells arise spontaneously from
nonliving materials

2 main parts of the cell theory - CORRECT ANSWER-1. all cells come from other
cells
2. all organisms are made of cells

what are the 2 parts to a scientific theory - CORRECT ANSWER-pattern

,process

what does a process do in relation to a pattern - CORRECT ANSWER-a process
is responsible for the pattern

hypothesis - CORRECT ANSWER-testable statement to explain phenomena or a
set of observations

hypothesis is for_____
theory is for______
(Broad patterns, tightly focused questions) - CORRECT ANSWER-hypothesis is
for tightly focused questions
theory is for broad patterns

prediction - CORRECT ANSWER-a measurable amount of observable results
that must be correct if the hypothesis is valid

describe pasteurs experiment - CORRECT ANSWER-I'm not going to type it all
just look over it in the book lol

evolution - CORRECT ANSWER-change is characteristics of a POPULATION
over time

how are species related - CORRECT ANSWER-through a common acestor

natural selection - CORRECT ANSWER-explains how evolution occurs

what are the 3 conditions needed for natural selection - CORRECT ANSWER-1.
variation in a gene pool
2. heritable genes
3. differential reproduction

heritable - CORRECT ANSWER-traits passed to offspring

population - CORRECT ANSWER-group of individuals of SOME SPECIES living
in the SAME AREA at the SAME TIME

, artificial selection - CORRECT ANSWER-changes in a population occur when
HUMANS select certain individuals to produce the most offspring
**natural variation still occurs**

fitness - CORRECT ANSWER-the ability of the individual to reproduce a viable
offspring

adaptation - CORRECT ANSWER-A TRAIT that increases the fitness of an
individual in a particular environment

speciation - CORRECT ANSWER-evolution of 2 or more distinct species from 1
single ancestral species

tree of life - CORRECT ANSWER-family tress of all organism

phylogeny - CORRECT ANSWER-genealogical relationships

what is used to make a phylogeny tree - CORRECT ANSWER-rRNA

why is rRNA used to sort species and show relations - CORRECT ANSWER-all
organisms need rRNA and they change with evolution, if similar show certain
similar rRNA and can track certain changes shown

what are the 3 leagues of organisms - CORRECT ANSWER-1. bacteria
2. archaea
3. eukarya

eukaryotes - CORRECT ANSWER-cells have a nucleus

prokaryotes - CORRECT ANSWER-have no nucleus

what league does a prokaryote organism belong to - CORRECT
ANSWER-bacteria and archaea

taxonomy - CORRECT ANSWER-effort to name and classify organism

taxon - CORRECT ANSWER-any named group

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 modockochieng06. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75632 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.99
  • (0)
  Add to cart