How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Bizhelp Your Own Question

Bizhelp
Bizhelp, CPA
Category: Homework
Satisfied Customers: 5720
Experience:  Bachelors Degree and CPA with Accounting work experience
Type Your Homework Question Here...
Bizhelp is online now
A new question is answered every 9 seconds

Please help I only have one hour 1. Which of the following

Customer Question

Please help I only have one hour:

1. Which of the following is the smallest unit of matter that has all the properties of an element? (Points: 4)
molecule
element
atom
compound
electron


2. Isotopes of an element differ in their _____. (Points: 4)
proton number
electron number
neutron number
types of bonds
atomic number


3. An atom that has an electrical charge is called a(n) (Points: 4)
ion
molecule
isotope
element
proton


4. A covalent bond occurs when ________. (Points: 4)
protons are transferred from one atom to another
neutrons are shared between two atoms to form an isotope
electrons are shared between two atoms to complete their octets
the hydrogen of one water molecule is attracted to the oxygen of another water molecule
electrons are transferred from one atom to another


5. A water molecule is polar because of _____. (Points: 4)
transfer of electrons
unequal sharing of electrons
its ability to freeze
its hydrogen bonds
its change in density when frozen


6. Which of the following is NOT a property of water? (Points: 4)
It is a good solvent.
It is denser when frozen than when liquid.
It is cohesive.
It resists temperature changes.
It can be found as a solid, liquid, or gas.


7. Bases can ________. (Points: 4)
release only hydrogen ions
take up only hydrogen ions
release only hydroxide ions
both take up and hydrogen ions and release hydroxide ions
release hydrogen and release hydroxide


8. Which of the following explains the events occurring when water boils? (Points: 4)
Hydrogen bonds are broken between neighbor water molecules.
Covalent bonds are broken between oxygen and hydrogen atoms.
Ionic bonds are broken when the minerals in water are heated.
The bond between one water molecule and another is strengthened.
The hydrogen atoms break away from the oxygen and escape as vapor.


9. Deoxyribose is a sugar found in ________. (Points: 4)
glucose
enzymes
DNA
glycogen
protein


10. Which of the following correctly lists the part of a nucleotide of RNA? (Points: 4)
nitrogen-containing base, deoxyribose, phosphate
sulfur-containing base, ribose, phosphate
nitrogen-containing base, ribose, phosphate
nitrogen-containing base, ribose, sulfur
amino acid-glycerol, nitrogen-containing base


11. A gene in DNA is the code for _______. (Points: 4)
a sequence of amino acids
a sequence of glucose molecules
a sequence of fatty acids used in a fat
a sequence of sugars
a sequence of functional groups


12. The principle role for sugars in living things is (Points: 4)
to form cell membranes
to serve as a form of energy storage
to create out genetic code
for creating energy
to produce hormones


13. Glycogen is a _____ made of many ______. (Points: 4)
simple sugar; amino acids
peptide; amino acids
polymer; glucose molecules
protein; fatty acids
nucleic acid; nucleotides


14. Plants store their sugar in the form of _______. (Points: 4)
protein
glycogen
cellulose
starch
glucose


15. Which of the following is a function of proteins? (Points: 4)
energy storage
enzymatic activity
genetic coding
energy source
insulation


16. If a material mixes readily with water it is identified as _______. (Points: 4)
dehydrated
hydrophobic
saturated
hydrophilic
salty


17. What category of biological molecules are steroids included in? (Points: 4)
proteins
lipds
carbohydrates
nucleic acids


18. The process of __________transforms solar energy into chemical energy. (Points: 4)
metabolism
homeostasis
respiration
photosynthesis
reproduction


19. All of the following are true with respect to DNA EXCEPT __________ (Points: 4)
genes are made up of DNA.
for sex cells (sperm and egg), the DNA found in every cell in your body is identical.
offspring from sexual reproduction obtain their DNA from both parents.
asexual reproduction results in offspring with DNA that is different from the parent.
DNA codes for proteins.


20. Prokaryotes belong to _________. (Points: 4)
Domain Eukarya
Kingdom Plantae
Kingdom Protista
Domain Archaea
Kingdom Animalia


21. Which of the
Submitted: 2 years ago.
Category: Homework
Expert:  Bizhelp replied 2 years ago.
Hello,

It looks like some of your questions got cut off. Are there only 20 questions? If not, please post the other questions.
Customer: replied 2 years ago.
Sorry about that. Here is 21-25. I have about 30 min left on the test. Thanks so much for your help.


21. Which of the following correctly lists the classification categories from least to most inclusive? (Points: 4)
kingdom, phylum, domain, class, order, family, genus, species
domain, kingdom, class, order, family, phylum, genus, species
genus, species, family, class, order, domain, phylum, kingdom
species, genus, family, order, class, phylum, kingdom, domain
phylum, species, genus, kingdom, domain, order, class, family


22. Which of the following is NOT true about ecosystems? (Points: 4)
Energy is constantly recycled.
Nutrients are constantly recycled.
Producers are a food source for both consumers and decomposers.
Solar energy is required for photosynthesis.
Chemicals are constantly recycled.


23. Scientists were studying temperature selection among pregnant big brown bats. What would the treatment group be in this experiment? (Points: 4)
Pregnant bats
female bats that were not pregnant.
male bats
juvenile male bats
Juvenile female bats


24. The process of ________leads to organisms that are _________that environment. (Points: 4)
natural selection: adapted to
adaptation: evolved for
homeostasis: suited to
natural selection: perfect for
adaptation:only found in


25. In science, a theory (Points: 4)
is tested by an experiment
is more narrow in scope than a hyposthesis
encompasses many hypotheses.
cannot be tested
is held to be an absolutely correct answer to a question.
Expert:  Bizhelp replied 2 years ago.
Here are some but I don't think I can finish the rest by your deadline, so I will opt out and hopefully another expert can assist you.

1. atom

2. neutron number

3. ion

4. electrons are shared between two atoms to complete their octets

5. unequal sharing of electrons

6. It is denser when frozen than when liquid.

7. both take up and hydrogen ions and release hydroxide ions

8. Hydrogen bonds are broken between neighbor water molecules.

9. DNA

Thanks.
Expert:  Bizhelp replied 2 years ago.
THIS ANSWER IS LOCKED!
You can view this answer by clicking here to Register or Login and paying $3.
If you've already paid for this answer, simply Login.
Customer: replied 2 years ago.
Already had to submit the test. Thanks anyway.

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Last | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX
 
 
 

Meet The Experts:

 
 
 
  • Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4520
    More than 5000 online tutoring sessions.
< Last | Next >
  • http://ww2.justanswer.com/uploads/BU/BusinessTutor/2012-2-2_115741_Kouki2.64x64.jpg Manal Elkhoshkhany's Avatar

    Manal Elkhoshkhany

    Tutor

    Satisfied Customers:

    4520
    More than 5000 online tutoring sessions.
  • http://ww2.justanswer.com/uploads/LI/lindaus/2012-6-10_04811_IMG20120609164157.64x64.jpg Linda_us's Avatar

    Linda_us

    Finance, Accounts & Homework Tutor

    Satisfied Customers:

    3121
    Post Graduate Diploma in Management (MBA)
  • http://ww2.justanswer.com/uploads/ComputersGuru/2010-02-13_051118_Photo41.JPG LogicPro's Avatar

    LogicPro

    Engineer

    Satisfied Customers:

    3035
    Expert in Java C++ C C# VB Javascript Design SQL HTML
  • http://ww2.justanswer.com/uploads/lanis/2009-4-1_233717_phput9xef_c1pm.jpg Lani S.'s Avatar

    Lani S.

    Tutor

    Satisfied Customers:

    2457
    Registered Nurse, Internet Researcher, Private Tutor
  • http://ww2.justanswer.com/uploads/chooser77/2009-08-18_162025_Chris.jpg Chris M.'s Avatar

    Chris M.

    M.S.W. Social Work

    Satisfied Customers:

    2341
    Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)
  • http://ww2.justanswer.com/uploads/JawaadAhmed/2009-6-27_12137_SIs_SHadi.jpg F. Naz's Avatar

    F. Naz

    Chartered Accountant

    Satisfied Customers:

    1975
    Experience with chartered accountancy
  • http://ww2.justanswer.com/uploads/JK/jkcpa/2011-1-16_182614_jkcpa.64x64.jpg Bizhelp's Avatar

    Bizhelp

    CPA

    Satisfied Customers:

    1873
    Bachelors Degree and CPA with Accounting work experience