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 29 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
Thanks for the timely response, appreciate it

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Body size and population density of herbivorous mammals Body size and population density of herbivorous mammals
The relationship of substrate con- version (as measured by optical density) to the amount of patient ... The relationship of substrate con- version (as measured by optical density) to the amount of patient ...
Mechanisms to Explain the Effects of Massage Mechanisms to Explain the Effects of Massage
Illustration of multidirectionality and low density of fibers in typical fascia. Illustration of multidirectionality and low density of fibers in typical fascia.
Density of some common substances Density of some common substances
Physics- Density, Pressure and Pascal's Principle Physics- Density, Pressure and Pascal's Principle
Video: Factors that influence muscle tension - Sarcomere length and force, understretched and overstretched

For a complete list of videos, visit our video library