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
anyanavicka [17]
3 years ago
12

Why do most organisms that die not leave a record of their existence

Biology
1 answer:
jeyben [28]3 years ago
4 0
They leave no record of their existence because it's rare that fossils form. You need the right conditions in which the animal's remains are covered in silt, dirt, and rock layers in order for a fossil to form and therefore preserve the animal's remains in rocks. Otherwise, the animal's remains will be eaten by other animals or eventually rot away. 
You might be interested in
Which medical condition is more common in people with bulimia than those with anorexia?
tresset_1 [31]
I think the answer is dysmorphic ideation because bulimic patient's see themselves in a mirror and are always criticising the way they look..to them they see an overweight person in the mirror, but in reality they could be an ideal weight..

5 0
3 years ago
Read 2 more answers
When a spoon tarnishes this type of chage has occurred?
Contact [7]
I think its rest because it tarnishes so witch means dullness of color; loss of brightness according to the dictionary and when something rest it loses color and becomes a copper brown color 
4 0
3 years ago
The following are the steps for B-cell activation. The steps are in an incorrect order.
Nataly_w [17]

Answer:

4. B cells become activated by interacting with helper T cells.  

1. B cells display antigens in MHC class II receptors on the cell surface.  

2. Antibodies released by plasma cells bind to the antigen so they will be destroyed by other cells of the immune system.

3.B cells rearrange their DNA to create a unique B-cell receptor.  

5. B cells undergo clonal expansion.

6. B cells digest antigens that bind to the antibodies on their surface.

Explanation:

B-cells get activated by interacting with helper T cells when they bind to the antigen to receptors i.e (MHC class II receptors on the cell surface) on the surface of the cell. Series of activities such as release by plasma cells which cause rearrangement of B cells causes the cell to divide and proliferate. The process through which daughter cells arise from a parent cell called clonal expansion.

4 0
3 years ago
All of the following are protozoans except..... A)Mushrooms B)Amoebas C)Paramecium D)Euglena
Lena [83]
Mushrooms because they belong in the fungi kingdom
3 0
3 years ago
Read 2 more answers
The cornea is the transparent outer layer of the human eye. Because it must be transparent to light, it does not normally contai
Serjik [45]

Answer:

the correct oprtion is B

Explanation:

the correct answer is b, since increasing the porosity of the contact lens allows it to work as a good method of gas exchange, simulating the lung membranes that present fenestrated capillaries that promote gas exchange. For this to happen, the permeability must always be high and therefore this is directly related to the porosity of the element with which the contact lens is made.

4 0
3 years ago
Other questions:
  • By how much did carbon dioxide levels increase from 1980 too 2000
    9·1 answer
  • What safety rule is important when working with living or dead organisms?
    12·1 answer
  • What substance was responsible for a major ozone depletion in the 1900s?
    12·1 answer
  • Most of the volume of the atom is ___________, throughout which tiny, negatively charged electrons are dispersed.
    8·1 answer
  • In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb
    8·1 answer
  • Select the correct answer.
    10·1 answer
  • Help w #9 plss thank youuu
    11·1 answer
  • The source of power in a nucler power plant comes from​
    8·1 answer
  • Which of the following do most
    6·2 answers
  • Skeletal Muscle can connect to ________, for example. It is involved in the movement of arms and legs.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!