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
Daniel [21]
3 years ago
5

Helppp please on number 4 i don't understand at all

Biology
1 answer:
Ber [7]3 years ago
8 0
Do you know how to do a chi-square?
You might be interested in
For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic mat
o-na [289]

Answer:

For a couple of decades, biologists knew the nucleus contained DNA and proteins. The prevailing opinion was that the genetic material was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. This is because:  <u>proteins have a greater variety of three-dimensional forms than does DNA.</u>

Explanation:

Protiens have a greater variety of three dimensional forms than does the DNA

Protiens contain one or more polypeptides which are usually arranged in one of the following structures :

1)Primary structure

2) Secondary structure

3) Tertiary structure

4) Quaternary structure

These structures are maintained by Hydrogen bonding , Hydrophobic interactions , Disulphide bonds and ionic bonds )

DNA on the other hand is a double stranded molecule containing only hydrogen bonds between the nitrogenous bases and the covalent bonds within nucleotides. It is much simpler than protiens.

4 0
4 years ago
Cells that are terminally differentiated:_________
Tom [10]

Answer:

b. can no longer undergo cell division.

Explanation:

Terminally differentiated cells are those cells completely specialized in their functions that have lost their ability to proliferate. They are cells that have a unique, very specific, function, whereas undifferentiated cells do not have specialized functions that serve to replace old and dead cells. Examples of terminally differentiated cells include skin cells derived from epithelial stem cells, red blood cells and white blood cells generated from hematopoietic stem cells, etc.

5 0
3 years ago
How might each of the follwing parts of the brain be active while we drive a car?
yulyashka [42]
Cerebellum. allows me to use my hands to turn right or left.
Medulla. allows me to breathe and have a steady heart rate while i'm focused on driving.
pons. helps me stay alert.
reticular formation. helps me avoid drowsiness.
thalamus. allows me to respond to car horns.
hypothalamus. ...
amygdala. ...
hippocampus.
8 0
4 years ago
What causes water buttercup cells with the same genotype to have different phenotypes?
djyliett [7]
An organism's genotype is a major (the largest by far for morphology) influencing factor in the development of its phenotype, but it is not the only one. Even two organisms with identical genotypes normally differ in their phenotypes. One experiences this in everyday life with monozygous (i.e. identical) twins.
7 0
3 years ago
Describe and draw the structure of an ATP module.
Sergio039 [100]

so ATP is adenine triphosphate

it has 3 phosphate groups, hence the 'tri'

it has nitrogen containing carbon rings

and it also had a carbon ring containing OH groups


i can't draw it on here but if you google the structure hopefully my explanation will make more sense

6 0
3 years ago
Other questions:
  • What is the theory of plate tectonics, and how does it influence geologic events and features on Earth?
    8·1 answer
  • Do you think that asymmetrical organisms tend to be more or less complex than symmetrical organisms?
    12·1 answer
  • External ear structure that helps to localize the direction from which sound arises
    15·1 answer
  • Mimulus lewisii and Mimulus cardinalis are two plants that occupy the same habitat but do not interbreed in nature. However, the
    14·2 answers
  • Match the term to its description.
    12·1 answer
  • Why are sponges considered animals?​
    14·2 answers
  • The Krebs cycle forms many products. Which option lists the correct products of the Krebs cycle after 1 molecule of glucose goes
    7·1 answer
  • In which direction is the wind likely to blow in the picture?
    14·2 answers
  • What is the primary source of energy in a food chain? O oxygen sun O carbon dioxide water
    9·1 answer
  • If there is a double bond between what in the fatty acid chain, when it is said to be what?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!