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
8

When during fetal development do rhythmic breathing movements begin?

Biology
2 answers:
zaharov [31]3 years ago
4 0

in the third trimester

gogolik [260]3 years ago
3 0
It should be when A. late in the third trimester, specifically months 7 and 8. It can't be B or D because the baby is breathing and getting oxygen through the placenta. It's not C because the lungs will de fully developed by the time the baby is out. In the 3rd trimester "the lungs are still developing still shortly before birth, but rhythmic breathing movements begin before lungs are fully developed." Its in my notes. I hope this helps!
You might be interested in
The component of a homeostatic control system which transmits the response is called the .
borishaifa [10]

The homeostatic control system component which transmits the response is called the receptor.

To add, the receptor is <span>an organ or cell able to respond to light, heat, or other external stimulus and transmit a signal to a sensory nerve.</span>

4 0
4 years ago
The brown tree snake was accidentally introduced to the island of Guam during World War II. Since then, this snake has caused th
ELEN [110]

Answer:

3.

Explanation:

Since the snake was introduced, many species were killed off which severely impacted food chains and webs

3 0
3 years ago
Read 2 more answers
The enzyme machinery responsible for mismatch repair must be able to distinguish between the template strand and a newly synthes
Sonja [21]

Answer: For a short period of time after replication, the sequence GATC is methylated at the A only on the template strand.

8 0
3 years ago
Underlying alzheimer's disease is a deterioration in neurons that produce:
kompoz [17]
Deterioration in neurons that produce acetylcholine is an underlying Alzheimer's disease. <span>Acetylcholine is an organic chemical that functions as a neurotransmitter at neuromuscular junctions, at synapses, in the ganglia of the visceral motor system, and at a variety of sites within the central nervous system in the brain and body of many types of animals, including humans. A neurotransmitter is a substance released by </span>synaptic terminals for the purpose of transmitting information from one nerve cell to another.



3 0
3 years ago
Read 2 more answers
A) A man has two recessive alleles. What is his phenotype? (1 point)
diamong [38]

Answer:

His phenotype would be having dry earwax

Explanation:

8 0
2 years ago
Other questions:
  • Why can't plants catch a cold?
    13·2 answers
  • If r-organisms reproduce at such a high rate, why don’t they usually reach their carrying capacity? If an r-population is moved
    10·1 answer
  • เครื่องมือทางภูมิศาสตร์มีอะไรบ้าง
    12·2 answers
  • Worth 30 points! Which cell part provides a similar function in a plant cell?
    5·2 answers
  • 1. ________ refers to the minimum amount of stimulus energy required to be detected 50% of the time. a. absolute threshold b. di
    6·1 answer
  • When two cultivars are crossed , their offspring will be
    13·1 answer
  • Why is it possible for an amino acid to be specified by more than one kind of codon?
    14·1 answer
  • A chromosome contains one long blank molecule
    10·1 answer
  • Which organelles would you expect to be abundant in those cells, and why?
    10·1 answer
  • HELPPPPPPPP MEEEEEEEEE PLZZZZZZZZ
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!