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
mario62 [17]
2 years ago
13

What substance is a pure substance ?

Biology
1 answer:
denis-greek [22]2 years ago
5 0
<span>Hello,

Silver is a pure substance, So B is your answer!


Have a good day mate !!!

Your Friend --- Young Sinatra</span>
You might be interested in
The ___ culture was the first to keep accurate health records.
aniked [119]
The Egyptian culture.
8 0
3 years ago
Read 2 more answers
Select the statements that explain why duplication is a driving force for evolution and the generation of new genes.
Paha777 [63]
<span>It is vitally important to life, any form of life. Life in it's self is what we are all striving to grasp, hold and not let escape. It is the endless search for meaning to understand and comprehend. Evolution which is the symphonic struggle of nature to overcome and create the most suitable specimen ensuring its survival within its species from its predators and the world at large. Duplication is natures way to regenerate and strengthen the gene pool of species. It allows newer generations to improve on the genes to enable it to adapt better to the current environment is is facing. It is a constant and never ending process.</span>
4 0
3 years ago
Read 2 more answers
The reaction between allergens and ige antibodies causes the release of chemical substances such as __________.
Levart [38]
The reaction between allergens and IgE antibodies causes the release of chemical substances such as

histamine, leukotrienes and prostaglandins

<span>
</span>
7 0
2 years ago
Please answer (: thank u &lt;3
Art [367]

Answer:

It's either a or b

Explanation:

I'm not sure which of those it would be but I hope it helps some!

8 0
2 years ago
A non native species of fish is introduced into a lake. which would most likely prevent this fish from becoming an invasive spec
satela [25.4K]
The factor that will prevent the species from becoming an invasive one is predation.

If the species of fish introduced is an apex predator, there will be no organisms present to keep the population of the fish in check. Moreover, if the introduced species has a selective advantage over those that it shares the same niche with, then it is more likely to oust these species from the food chain by consuming all of their resources. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • Would you expect plants that normally live in the desert to exhibit more pronounced phototropism than forest dwelling plants? Ex
    6·1 answer
  • Congenital defect in which one has only half a heart
    9·1 answer
  • The inheritance of human blood types (ABO) is influenced by ______________________.
    7·1 answer
  • Where is the energy shown in the equation transferred as a result of photosynthesis?
    16·1 answer
  • How can a trait skip a generation? (for example, the parents have the trait, their children do not, but then later, their grandc
    7·1 answer
  • in which location is water most likely to be transferred the fastest from the hydrosphere to the atmosphere?
    11·2 answers
  • When a litter of puppies is born, the pups will exhibit certain physical characteristics that can be found in one or both of the
    10·2 answers
  • Can someone please help me with this i don’t know if it’s correct please help me
    9·1 answer
  • Carbon dating is useful for
    5·1 answer
  • What is the answer im not sure
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!