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
allsm [11]
3 years ago
5

In which trimester do the bony parts of the skeleton begin to form

Biology
2 answers:
Alexandra [31]3 years ago
5 0

Answer:

B. Second

Explanation:

In the second trimester the bony parts of the skeleton begin to form .

scoundrel [369]3 years ago
4 0

Answer:

A. First Trimester

Explanation:

You might be interested in
Which end of an earthworm contains an organ that can detect smells?
NNADVOKAT [17]
<span>The anterior end of an earthworm contains an organ that detects smells. Evidence of this is the way the earthworms responded to the ammonia. The earthworms backed away from the ammonia when it was waved near their anterior end, but they did not respond at all when the ammonia was waved near their posterior end.</span>
7 0
2 years ago
Read 2 more answers
Respiratory function deteriorates as a result of pneumonia because inflammationA) causes fluids to leak into the alveoli.B) caus
xenn [34]

The correct answer is: D) A and B only

Pneumonia is an inflammatory condition of the lungs that is usually caused by infection with viruses or bacteria. Pneumonia causes the fluid fill of the alveoli (air sacs). As a result symptoms such as cough with phlegm or pus, fever, chills, and difficulty breathing might occur. Pneumonia can be serious condition, especially for infants and people with weakened immune systems.

3 0
3 years ago
Read 2 more answers
What information do fossils provide about plants and animals
fenix001 [56]
They provide information about the pasts of the animal and plants.
4 0
3 years ago
Read 2 more answers
Which of the following statements about a typical plasma membrane is correct?a. Phospholipids are the primary component that det
nordsb [41]

Answer:

B

Explanation:

The fatty acid tails of phospholipids are hydrophobic – meaning they are ‘water-hating’. This is why they are in the middle of the bi-lipid layer of the cell membrane 'hiding' from the 'watery' environment of a cell. This poses a challenge in the diffusion of large and charged molecules across the membrane -such as sodium ions. Such molecules need transmembrane protein channels to help them cross the membrane. These are called integral proteins because they are part and parcel of the cell membrane. The cell membrane, in addition, also has glycolipids and glycoproteins on its surface that are significant in the identification of the cell by other cells.

7 0
3 years ago
Carbon-12 and Carbon-14 are isotopes; it means that
jok3333 [9.3K]
A :-) Isotopes are forms of the same element with equal numbers of protons but different numbers of neutrons. For example, both carbon-12 and carbon-14 have 6 protons. But carbon-12 has 6 neutrons while carbon-14 has 8 neutrons. By definition, carbon-12, carbon-13 and carbon-14 are all isotopes of the carbon.
8 0
2 years ago
Other questions:
  • Why are antibiotics unhelpful for treating the common cold?
    10·2 answers
  • HCG is secreted in the human female immediately after conception. How would a gynecologist use this information?to detect pregna
    15·2 answers
  • Natural selection is most likely to have different effects on organisms with which pair of alleles
    5·1 answer
  • Which of the following hormones increases the heart rate in response to stress?
    6·1 answer
  • When does DNA replication(make a copy of itself)?
    9·1 answer
  • You have learned about fermentation and how it can be used to produce food products like yogurt and bread. What other products—f
    13·1 answer
  • The breakdown of food molecules, such as glucose in the absence of oxygen is called?
    7·2 answers
  • WILL MARK BRAINLIEST!!<br><br>write in your own words it doesn't need to be long!!
    13·1 answer
  • Which land biome is characterized by extremely cold temperatures, very dry and windy harsh
    8·1 answer
  • A researcher proposes a model of an enzyme catalyzed reaction in which a reactant
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!