This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Define and explain the meaning of DENSITY. What will be an ideal ... (Read 71 times)

kaid0807

  • Hero Member
  • *****
  • Posts: 515
on: Jul 27, 2018
Define and explain the meaning of DENSITY.
 
  What will be an ideal response?

Question 2

What is one reason that early life formed cells?
 
  A) cell walls prevent heat from escaping
  B) cells concentrate molecules together so they react more easily
  C) only cells can replicate
  D) biological reactions can occur only within cells


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sokh

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 27, 2018
Answer to Question 1

Density expresses how much mass is contained in a unit volume:
i.e., Density = Mass/Volume

Answer to Question 2

B


kaid0807

  • Member
  • Posts: 515
Reply 2 on: Jul 27, 2018
Gracias!

hollysheppard095

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

This modified model of Easton’s systems theory puts government decision makers as the source of pol This modified model of Easton’s systems theory puts government decision makers as the source of pol
A pharmacist can explain to a patient why medication may look different and ensure the correct ... A pharmacist can explain to a patient why medication may look different and ensure the correct ...
The Number of Children Americans Think Are Ideal The Number of Children Americans Think Are Ideal
E9-23 Prepare income statements Explain the difference in operating income E9-23 Prepare income statements Explain the difference in operating income
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
Video: Biological organic compounds

For a complete list of videos, visit our video library