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
viva [34]
4 years ago
14

What did Darwin conclude after finding clam fossils in the mountains?

Biology
1 answer:
KIM [24]4 years ago
5 0
Darwin concluded that the sea level was high were it reached the mountain and as times passed sea level lowers down and clams were still on the mountain so when they died they were fossilized in the mountains. Hope this helps
You might be interested in
What would happen to your food web of aquatic plants died out because of pollution?
tatiyna

The answer is the food web would be affected and many populations of species would start to die off.  Food web affects the aquatic plants that feed more the species of fish and every aquatic life. The population would decrease. 

7 0
4 years ago
Read 2 more answers
Help please , whoever answer I’ll list you as brainlist
Sedbober [7]
I think it’s B. I think this cause meiosis is the cell multiplying
5 0
4 years ago
Which situation does NOT support Darwin’s theory of evolution by natural selection?
kompoz [17]

Answer:

C.

Explanation:

4 0
2 years ago
Read 2 more answers
Which of the following is a side effect of heat islands?
Elena-2011 [213]

Answer:

Drought is a side effect of heat islands

5 0
3 years ago
How microorganism can be identify as etiological agent of an infectious disease
N76 [4]

Answer:

Only when a microorganism has successfully established a site of infection in the host does disease occur, and little damage will be caused unless the agent is able to spread from the original site of infection or can secrete toxins that can spread to other parts of the body. Extracellular pathogens spread by direct extension of the focus of infection through the lymphatics or the bloodstream. Usually, spread by the bloodstream occurs only after the lymphatic system has been overwhelmed by the burden of infectious agent. Obligate intracellular pathogens must spread from cell to cell; they do so either by direct transmission from one cell to the next or by release into the extracellular fluid and reinfection of both adjacent and distant cells. Many common food poisoning organisms cause pathology without spreading into the tissues. They establish a site of infection on the epithelial surface in the lumen of the gut and cause no direct pathology themselves, but they secrete toxins that cause damage either in situ or after crossing the epithelial barrier and entering the circulation.

Most infectious agents show a significant degree of host specificity, causing disease only in one or a few related species. What determines host specificity for every agent is not known, but the requirement for attachment to a particular cell-surface molecule is one critical factor. As other interactions with host cells are also commonly needed to support replication, most pathogens have a limited host range. The molecular mechanisms of host specificity comprise an area of research known as molecular pathogenesis, which falls outside the scope of this book.

While most microorganisms are repelled by innate host defenses, an initial infection, once established, generally leads to perceptible disease followed by an effective host adaptive immune response. This is initiated in the local lymphoid tissue, in response to antigens presented by dendritic cells activated during the course of the innate immune response (Fig. 10.2, third and fourth panels). Antigen-specific effector T cells and antibody-secreting B cells are generated by clonal expansion and differentiation over the course of several days, during which time the induced responses of innate immunity continue to function. Eventually, antigen-specific T cells and then antibodies are released into the blood and recruited to the site of infection (Fig. 10.2, last panel). A cure involves the clearance of extracellular infectious particles by antibodies and the clearance of intracellular residues of infection through the actions of effector T cells.

Explanation:

if wrong correct me

4 0
3 years ago
Other questions:
  • Name two methods used by breeders to increase the rate of mutation
    11·1 answer
  • What conclusion did the researchers from University of California San Diego reach regarding the best type of material to use for
    5·2 answers
  • Examples will make a definition more concrete<br> True or false
    7·2 answers
  • A mother has type A blood and a father has type B blood. If their baby has type O blood, what is the genotype of the parents?
    9·2 answers
  • What is a stem cell?
    8·1 answer
  • What do you think can be done to prevent some of the viral infections in birds? What actions do veterinarians and caretakers nee
    8·1 answer
  • What discoveries has space technology helped scientists with?
    13·2 answers
  • What are the 2 parts of lipids
    6·2 answers
  • Where does your body get the energy for reattaching a third phosphate to ADP, creating ATP?
    11·1 answer
  • The process by which an endospore rehydrates and begins cellular metabolism is termed _____.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!