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
Dimas [21]
4 years ago
11

Why are elements and compounds classified as pure substances?

Biology
1 answer:
sesenic [268]4 years ago
4 0
Elements and compounds are both pure substances because they cannot be split apart by physical or mechanical methods.
You might be interested in
Compared to a skin cell, a muscle cell is likely to have more-
Genrish500 [490]

D) Mitochondria because muscle cells require more ATP (energy).

6 0
3 years ago
What is the mitochondria?
Rom4ik [11]
IT's the powerhouse of the cell :)
4 0
3 years ago
Read 2 more answers
The human activities in two locations are described below:
Andre45 [30]
The last one is most likely true
3 0
3 years ago
Read 2 more answers
Josh is assigned a project in class to make a strand of m-RNA from DNA.The DNA code that he has been assigned is CGG TCG AGT GAT
ziro4ka [17]

Answer:

The code will be GCC AGC UCA CUA

Explanation:

The mRNA is produced complementary to the DNA strand.  The Adenine nucleotide pairs with the Uracil (instead of thymine) in m RNA. The Guanine base pairs with Cytosine. This pairing will result in the formation of the mRNA strand. Once the strand is synthesized, it moves out of the nucleus.

Hence, as the sequence of the above DNA code is CGG TCG AGT GAT, the mRNA produced will have the code  GCC AGC UCA CUA.

8 0
4 years ago
African elephants flap their large ears to cool off. Which biology theme does this phenomenon represent?
ioda
Stimulus. The elephant gets hot and so internal stimuli lie respond by finding ways to cool it down, in this case, flapping their ears.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Heating water to produce steam is an example of:
    15·1 answer
  • 20 POINTS AVAILABLE
    5·2 answers
  • For patients who have familial hypercholesterolemia, what should be the focus of teaching for blood cholesterol reduction
    7·2 answers
  • How is a biogeochemical cycle connected to the transfer of matter and energy through a food chain?
    6·1 answer
  • Describe how some plants or animal populations survive in the presence of pesticides.
    5·1 answer
  • A logical interpretation based on prior knowledge and experience is a
    6·1 answer
  • Characteristics such as strength or the ability to find food often become more common in populations over time because individua
    6·2 answers
  • Imagine there are 25 different species of protists living in a tide pool. Some of these speciesreproduce both sexually and asexu
    12·1 answer
  • Which of the following are ways to increase transcription of DNA?
    11·1 answer
  • How many atoms of oxygen are there in 6H20?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!