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
natulia [17]
3 years ago
13

How many groups are in the modem periodic table

Biology
1 answer:
sweet [91]3 years ago
7 0

Answer:

The correct answer is

18

Groups of the periodic table: The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups.

Hope this helps!

- Quinn <3

You might be interested in
How are DNA and mRNA alike?
DiKsa [7]
DNA is <span>deoxyribonucleic acid, a carrier of genetic information. mRNA are molecules that carry a portion of the DNA code to other parts of the cell for processing.



</span>
5 0
4 years ago
Why are the dietary fiber intakes of many north americans far below the recommended level?
prisoha [69]
Because so much of the food now a days is very unhealthy and lacks the fiber it should contain.<span />
3 0
4 years ago
You have spent time working with a population of beetles. Sexually mature males range in size from 2-6 cm in length. You realize
babymother [125]

Answer:

Option B, No

Explanation:

Complete question is as follows -

You have spent time working with a population of beetles. Sexually mature males range in size from 2-6 cm in length. You realize that the females only mate with males that measure less than 3 cm long. If you measured allele frequencies at a single gene (locus) that contributes to overall length, would you expect this population to be in H-W equilibrium from one generation to the next?

Select one:

a. Yes

b. No

Solution -

No, because Hardy Weinberg’s equilibrium theory is not applicable in practical scenario as it assumes that H-W equilibrium persists from one generation to the other only when these is no disturbing factor . These disturbing factors include – natural selection, non-random mating, genetic drift, gene flow and mutations. Since this theory works only in an idealized state where no such disturbances occur, it is very difficult to say that the beetle population can remain in H-W equilibrium. Also the females in the beetle population are selecting the males for mating thereby exhibiting sexual selection. Hence, H-W equilibrium will not be applicable.

Hence, option B

5 0
3 years ago
Before 1914 many political leaders thought war in Europe could be
Snezhnost [94]
They felt that the war could be risky <span />
7 0
4 years ago
What are three questions that focus on the cause and effect relationship between the genetic code and gene expression, mechanism
natka813 [3]

Three questions that focuses on the cause and effect relationship between the genetic code and gene expression, mechanisms of gene regulation and/or the role of DNA segments that is not involved in coding the proteins are:

i. Illustrate the process of translation and explain it with the help of a diagram.

ii. What are codons? Name the stop codons in eukaryotes.

iii. What are exons and introns? Explain what happens to the introns during the process of transcription and translation?

3 0
4 years ago
Other questions:
  • Diets extremely low in fat may be deficient in ________.
    12·1 answer
  • What is the difference between Internal Regulator Protein and External Regulator Protein?
    12·1 answer
  • 2 Polnts
    11·1 answer
  • In vertebrates, chemical messengers called hormones are secreted by the _____ system.<br><br> \
    13·1 answer
  • You have several hives of honeybees, Apis mellifera, that you keep in your backyard. Some bees uncap and remove dead larvae from
    10·1 answer
  • Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below.
    12·2 answers
  • If you look at the reflection of your face on the back of a spoon, your face will be right-side up. If you flip the spoon to the
    12·2 answers
  • Is biting your nails bad for you?
    8·2 answers
  • Why do vultures wait for there prey
    13·2 answers
  • What is it called when a species<br> completely dies off?<br> Helllllppppp
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!