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
Vsevolod [243]
3 years ago
10

As a long bone develops, the point where osteoblasts first replace calcified cartilage with spongy bone becomes the ________, fr

om which further development proceeds.
A) primary ossification center

B) metaphysis

C) periosteum

D) secondary ossification center

E) epiphyseal line
Biology
1 answer:
mariarad [96]3 years ago
4 0

Answer:

A) primary ossification center

Explanation:

Endochondral ossification refers to the gradual replacement of a cartilage model with a bone. The primary ossification center represents the region where bone tissue gradually replaces most of the cartilage model. The deposition of the bone extracellular matrix over the remnants of calcified cartilage is done by osteoblasts. It results in the formation of spongy bone trabeculae. Primary ossification spreads from the central location toward both ends of the cartilage model.

You might be interested in
Explain the different preparations of cocaine and how they are used.
VLD [36.1K]
<span>Cocaine Preparations -Coca leaves --> Coca Paste (60% pure): Not water soluble, so you can't inject it into the bloodstream -- you need an additional chemical step to turn the paste into crystal powder that can be injected or snorted -Coca --> Cocaine Hydrochloride (99% pure): Doesn't hold up very well to heat, so you can't smoke cocaine hydrochloride -Cocaine Hydrochloride (99% pure) --> Free-Base Cocaine or Crack Cocaine: -Reconvert cocaine hydrochloride back to base state by removing hydrochloride from cocaine (that's why it's called free-base cocaine) -Crack cocaine is a crystallized form, mixture of cocaine and baking soda -75% pure -Can be used at lower doses and is much cheaper than cocaine -Can be smoked</span>
7 0
3 years ago
Un objeto tiene una densidad de 5g/ml y una masa de 57ml cual es su masa
laila [671]
The mass of the object is 57 ml
5 0
3 years ago
Which of the following would have resulted from the functions of prokaryotes on early earth?
Vitek1552 [10]
Not sure what the following is, but I think it could be less carbon in the soil 

3 0
3 years ago
Read 2 more answers
Current estimates suggest the number of prokaryotic organisms associated with the human body is equal to or greater than the num
Reika [66]

Answer:

Symbiotic relationship

Explanation:

An average human body between 20 to 30 year of age with a weight of 74 kg and 170 cm contains about 30 trillion cells. The number of bacterial cells in the same man counts for about 39 trillion that is higher than the cell of the body.

The ratio between the bacterial cell to the human cell is about 1.3:1 which is almost equal or higher than the human cells.

Although the number of bacteria is almost equal or higher than the human cell, the main reason behind this relation is that these bacteria live in the symbiotic or mutually beneficial relationship with humans.

Thus, a Symbiotic relationship is the correct answer.

8 0
3 years ago
Dr. Amit is running a memory experiment using fMRI. One participant is asked to remember a particular set of words, and Dr. Amit
lana66690 [7]

Answer:

Semantic Encoding

Explanation:

Encoding is the process of getting information into memory for storage. It involves associating it with objects, sound, visions etc

Semantic encoding is a specific type of encoding in which the meaning of something is encoded as opposed to the sound or vision of it. Research suggests that we have better memory for things we associate meaning to and store using semantic encoding

The process of breaking the information down into a form we understand is the process of encoding

3 0
3 years ago
Read 2 more answers
Other questions:
  • Limestone is an example of _____.
    15·2 answers
  • What is the fluid that carries gases, nutrients and wastes throughout the body? It also maintains homeostasis by transporting ho
    8·1 answer
  • Which absorbs the most co2 the ocean or the land
    7·1 answer
  • predatory and parasitic relationships both involve two different species. What is similar about both a predatory and parasitic r
    11·1 answer
  • Explain the difference between how animals and plants form their organs?
    12·1 answer
  • Describe how waves behave when they interact with a barrier or boundary.
    13·1 answer
  • Will energy ever come to an end?<br> free write
    13·1 answer
  • After meeting with their instructor, Pablo and Johanna know that they need to change their experimental design. They contact a l
    9·1 answer
  • How do fossil fuels affect the environment
    7·1 answer
  • Can someone help me with this it would really make my day go right
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!