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musickatia [10]
2 years ago
9

What is a dinosaur that still lives among us today? readworks answers

Biology
1 answer:
Dominik [7]2 years ago
4 0
In an evolutionary sense, birds are a living group of dinosaurs because they descended from the common ancestor of all dinosaurs. Other than birds, however, there is no scientific evidence that any dinosaurs, such as Tyrannosaurus, Velociraptor, Apatosaurus, Stegosaurus, or Triceratops, are still alive.
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Place the steps of endochondral ossification in order, starting with the creation of a cartilage model and ending with the prese
Ratling [72]

The correct  steps of endochondral ossification is:

  1. A periosteal bone collar develops.
  2. spongy bone and the medullary cavity form in the diaphysis.
  3. The diaphysis center is vascularized and osteoblasts deposit osteoid over calcified cartilage matrix.
  4. The epiphyseal center is vascularized and osteoblasts deposit osteoid over the calcified cartilage matrix.
  5. The spongy bone forms in epiphysis.

<h3>Which bones grow by endochondral ossification?</h3>

Long and short bones, such as the phalanges and femur, arise from a cartilage model formed by endochondral ossification. Distinguishing between these two types of osteogenesis does not imply the existence of multiple types of bone tissue.

Endochondral ossification mainly forms in two stages: modifications of the hyaline cartilage that ends with the death of chondrocytes and invasion of osteogenic cells and their differentiation into osteoblasts in the cavities previously occupied by chondrocytes for deposition.

See more about Endochondral ossification at brainly.com/question/9211436

#SPJ1

4 0
2 years ago
Please choose the answer that best completes the blanks of this sentence in the correct order. _______ are substances that provo
Inessa05 [86]
The correct answer is antigens and epitope.
An antigen is a substance which triggers an immune response in an organism. This can be either a foreign substance, such as a pathogen, or a specific part of the host organism (in this case this is an autoimmune response). The presence of an antigen activates a specific part of the immune system, called antibody. Each antigen has a specific antibody, which is tailored by the immune system accordingly. More specifically, the antibody has a specific structure, called paratope, which is complementary and binds like a key to a specific structure of the antigen, called epitope. 
5 0
3 years ago
select one of the main body systems and explain why it is essential to keep the whole body functioning
tatiyna
Circulatory system: 

--The circulatory system is also known as the cardiovascular system. 
-- It is composed of the heart, blood, blood vessels and also includes the lungs. 

The primary function of the circulatory system to distribute oxygen, nutrients, hormones and other gases to cells of the other body systems. It delivers all the necessary components needed for all the cell activities. Without the circulatory system, we would not be alive. 

It is our blood that carries these necessary nutrients, hormones, and oxygen. All these components trigger certain processes that keep other organs functioning. It also plays a role in eliminating waste by carrying them to the necessary organs that will filter them out. Without a way to dispose of waste, the body will eventually die.
3 0
3 years ago
The tendency for a solution of water and solutes to take up water across a selectively permeable membrane is called
olasank [31]

Answer:

Osmosis.

Explanation:

Osmosis is defined as the passive transport in which net movement of water across the membrane from high water area potential to low water area potential. The membrane is known as selectively permeable membrane moved by a concentration of solute both sides of the membrane.

Selectively permeable membrane is a membrane which is selective in nature that allows unrestricted passage of water molecules, but not solute molecules.

5 0
3 years ago
An explanation of convection
dybincka [34]
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in the transfer of heat.
8 0
3 years ago
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