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
Darina [25.2K]
4 years ago
11

Select the statement that is true concerning primary teeth.

Biology
1 answer:
Komok [63]4 years ago
5 0

The correct answer is: There are 20 primary teeth, and by 24 months of age most children have all 20.

Primary teeth also known as deciduous teeth, milk teeth, are the first set of temporary teeth in the growth development of humans. They develop during the embryonic stage of development, become visible in the mouth during infancy (erupt) and usually get replaced by permanent teeth around age six (the first tooth). The primary teeth consist of 4 central incisors (one in each quadrant), 4 lateral incisors, 4 canines, 4 first molars, and 4 secondary molars.

You might be interested in
Describe how RBPs can prevent miRNAs from degrading an RNA molecule.
Brrunno [24]

Answer:

miRNAs are short sequences of RNA (20-24pb) with high self-complementarity, allowing it to fold over itself (hair fork structure). This makes miRNA super stable, even in the highly reactive atmosphere of the cytoplasm.

miRNAs do not have RBPs as in RNAm.  They are linked with different proteins of the post-transducer machenary, such as argonaute, DICER or others, to serve as a guide to the adequate protein complex.

7 0
4 years ago
Which lists four common methods of seed dispersal? clouds, water, soil, popping rocks, organisms, clouds, wind popping, clouds,
wariber [46]

Answer:

it’s d

Explanation:

7 0
3 years ago
In animal cells the main microtubule organizing center (or centrosome) is important in cell division. __________________ True Fa
kramer

Answer:

True

Explanation:

In cell biology, the centrosome is the main microtubule organizing center that is important for cell division. The major function of  the centrosome is to maintain the chromosome number during cell division.

Other function of centrosome during cell division include initiate the changes in cell membrane shape through phagocytosis and organize microtubules in mitosis that ensures the distribution of the centrosomes into daughter cell.

Hence, the given statement is true.

8 0
3 years ago
What is the purpose of transcription?
Aloiza [94]
Transcription takes the DNA and copies/transcribes it to mRNA. Therefore, the right answer is b
8 0
3 years ago
Read 2 more answers
Starchy grain is dominant over sugary corn. If, in a cross between these types, 58 of the progeny are sugary, how many of the pr
DaniilM [7]

Let us solve first the phenotype of this problem.

Starchy grain = AA (dominant)

Sugary Corn = aa (recessive)

AA x aa = AaAa ; AaAa

<span>     A    A</span>

<span>a  Aa   Aa</span>

<span>a  Aa   Aa</span>

The result of the cross is that the progeny will become heterozygous.

<span>If there is 58 progeny sugary, there will also be 58 starchy. It is 50%.</span>

5 0
3 years ago
Other questions:
  • The benefits of brain plasticity are most clearly demonstrated in
    15·1 answer
  • The walls of the alveoli are composed of two types of cells. What are these types of cells and their functions?
    10·1 answer
  • If a tree root broke a rock apart, what kind of weathering accured
    11·1 answer
  • I need help ASAP
    5·1 answer
  • The energy acquired in photosynthesis is used to make G3P. G3P is then used to
    6·1 answer
  • What can you tell about igneous rock that is coarse grained? Apex
    12·2 answers
  • For an amino acid such as alanine, the major species in solution at pH 7 is the zwitterionic form. Assume a p K a value of 8 for
    14·1 answer
  • In desert areas covered with black rock from ancient lava flows, rock pocket mice with darker fur are common. In other areas of
    12·1 answer
  • The use of DNA in the process of classifying organisms is known as.
    6·1 answer
  • Why does the invasive brown treesnake have a negative effect on the biodiversity of guam?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!