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
astra-53 [7]
3 years ago
13

Secretion of human chorionic gonadotropin (hcg) occurs during what time frame during pregnancy?

Biology
1 answer:
masha68 [24]3 years ago
3 0
Secretion of human chorionic gonadotropin [HCG] only occur during pregnancy in the placenta. The concentration of this hormone increase rapidly during the first three months of pregnancy; the amount in the blood stream doubles every two to three days as the development of the placenta and embryo progress. The hormone reaches its maximum concentration peak around the sixth week of pregnancy and after this, its concentration decline.
You might be interested in
Explain why DNA is called a molecular clock.
hammer [34]

The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.

Explanation:

5 0
3 years ago
Do the people at T mobile keep your browser history and things like that??
SIZIF [17.4K]

Answer:

2x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

Explanation:

6 0
3 years ago
. How many malonyl groups are consumed in the cytoplasmic synthesis of palmitate? a. 4 b. 5 c. 6 d. 7 e. 8​
konstantin123 [22]
C. i took the test and i got it right
6 0
1 year ago
I need help i dont know what im doing
frosja888 [35]
Hey!

Back when I was finding a school I had the same problem! That reminds me of K12!

So what you do is label the areas L that have low pressure which is areas that are near sea level, kind of cold areas.

For H you label those near the center of the map. Which is more of the HOT areas.

It’s currently cold here, burrrr!!

I’ll provide a picture below.

Awesome seeing someone that went to the same online school!

Have a great day,
Eric

Note: you don’t need to label everywhere. If recommend using the map to guide you!

Reply if you have any further questions!!!!
7 0
3 years ago
What is science and technology
Eva8 [605]
Science encompasses the systematic study of the structure and behavior of the physical and natural world through observation and experiment, and technology is the application of scientific knowledge for practical purposes.

Hope this helped!
7 0
3 years ago
Other questions:
  • Which of the following DNA molecules is the most stable?
    7·1 answer
  • Light and dark moth natural selection experiment
    5·1 answer
  • Which of the following is TRUE of species interactions?A) They can act as agents of natural selection.B) The outcome of any spec
    5·1 answer
  • What is the term for traits an organism possesses that help it survive better?
    5·1 answer
  • ILL GIVE BRAINLIEST!!!
    12·2 answers
  • Right answer gets brainliest!!!!!!!!!!!!!
    10·2 answers
  • Give an example of bacterial disease and describe how it makes people sick.
    6·1 answer
  • What does<br> Oceanic and Continental two plates coming together<br> create
    6·1 answer
  • Which of the following statements about elements and atoms is true?
    15·1 answer
  • You want to determine whether short wings in fruit flies are the result of a dominant or recessive mutation. You cross a short-w
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!