1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vika [28.1K]
3 years ago
14

Why must density be calculated instead of directly measured?

Biology
1 answer:
grandymaker [24]3 years ago
3 0
Because it is derived quantity not a fundamental quantity
You might be interested in
4. Which of the following statements best describes how the traits of an organism are determined
butalik [34]

Answer Choices:

DNA provides the energy needed for an organism to grow and function

DNA is copied into mRNA, which controls cellular functions

DNA codes for proteins, which allow an organism to grow and function

DNA unzips and each strand codes for a different amino acid

Answer:

DNA codes for proteins, which allow an organism to grow and function

Explanation:

DNA provides the energy needed for an organism to grow and function  - this is false. DNA does not provide energy. A molecule called ATP, mostly produced by cellular respiration, provides energy for the cells to grow and function.

DNA is copied into mRNA, which controls cellular functions  - this is false. While it is true that DNA is copied into mRNA, mRNA does not directly control cellular functions. Instead, mRNA is translated into proteins.

DNA codes for proteins, which allow an organism to grow and function  - <u>this is true, as indicated above, DNA is transcribed to mRNA which is translated into proteins. Proteins carry out essentially all the functions in the cell</u>

DNA unzips and each strand codes for a different amino acid - this is false, DNA is transcribed into mRNA. Each mRNA codon (three bases) codes for a different amino acid

6 0
3 years ago
What do all arthropods have?
Troyanec [42]

Answer:

every arthropod have jointed legs

Explanation:

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE

4 0
3 years ago
Name a famous ecologist​
Ludmilka [50]

Answer:

Antony Van Leeuwenhoek

Explanation:

Discovering bacteria and creating more than 500 simple microscopes

6 0
3 years ago
Which antibiotic factors would you expect to influence the growth of trees in the mountains
Rainbow [258]
The abiotic factors that affect plant growth and development include topography, soil, and climatic factors. They are the nonliving components of the environment which, along with the biotic or living factors, determine the extent in which the genetically-dictated characters are expressed in the plant.
8 0
3 years ago
Why do cells break down sugars
marin [14]
<span>To get energy. Sugars are particularly important fuel molecules. They are oxidized in the food we eat and must be broken down into smaller molecules before our cells can use them

</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • If you place flaccid plant cells in pure water, water ________ into cell because it has ________.
    15·1 answer
  • Large veins arterioles capillaries large arteries 1. : site where resistance to blood flow is greatest. 2. : site where exchange
    7·1 answer
  • What the elements for nucleic acid someone?
    13·2 answers
  • If a forest was destroyed what will most likely happen to the soil
    6·1 answer
  • Transfer of energy from the glucose in food to ATP do IN cells movement and other functions
    10·1 answer
  • This organelle most likely belongs to which organism?
    12·1 answer
  • In My Bondage and My Freedom by Frederick Douglass, what does Douglass yearn for above all else?
    13·2 answers
  • Compare an animal with a gastrovascular cavity to an animal with a tube-type digestive system. What is(are) the major advantage(
    12·1 answer
  • What organelle is responsible for the production of energy in the cell
    9·2 answers
  • Which point in this graph sows the beginning of a period of exponential growth? A. Point C B. Point D C. Point B D. Point A
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!