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
alexgriva [62]
2 years ago
8

The pH scale measures how acidic or basic a substance is. Normal drinking water needs to have a pH of less than 6.5. Model the n

ormal range of pH values or water, using a compound inequality.
a. 6.5 < x < 8.5
b. 6.5 > x > 8.5
c. 6.5 <(with a line under) x <(with a line under) 8.5
d. 6.5 >(with a line under) x >(with a line under) 8.5
Biology
1 answer:
maxonik [38]2 years ago
6 0

Answer:

6.5 > x > 8.5

Explanation:

You might be interested in
If a molecule is to large or polar and cannot easily diffuse into the cell, it is
Eddi Din [679]

Answer:

hydrophilic

Explanation:

Large polar or ionic molecules, which are hydrophilic, cannot easily cross the phospholipid bilayer. Charged atoms or molecules of any size cannot cross the cell membrane via simple diffusion as the charges are repelled by the hydrophobic tails in the interior of the phospholipid bilayer.

7 0
3 years ago
Ingrid drew a diagram to compare two ways in which biodiversity can be protected.Which label belongs in the area marked Y?
Usimov [2.4K]
The answer is D because its comparing and the other will just be listing 
3 0
3 years ago
Read 2 more answers
Which of these germinal layers give rise to the digestive system, the circulatory system, and the nervous system?. . . . Endoder
nexus9112 [7]
The germinal layers that give rise to the digestive system is Ectoderm, Endoderm, Mesoderm, Respectively. And the best answer among your choices is the last option which is C. I hope you are satisfied with my answer and feel free to ask for more 
7 0
4 years ago
Read 2 more answers
Describe the similarities and differences in the way humans and insects obtain oxygen.
Molodets [167]

Answer:

There are many ways.

Explanation:

Humans have a combined respiratory and circulatory system, whereas insects do not. In humans, the air is brought in through the mouth/nose, through the windpipe, and into the lungs, the oxygen is absorbed into the bloodstream where it can be transported to muscles and organs. However, insects take in air through tiny holes in their thorax and abdomen. These are called spiracles. The oxygen is stored in many dorsal air sacs to be used. Then carbon dioxide is expelled through the spiracles.

4 0
2 years ago
Enzymes catalyze chemical reactions that keep cells alive. imagine that a cell had no enzymes. how would having no enzymes affec
Salsk061 [2.6K]
The chemical reactions in the cell would not happen as fast and would require more energy to catalyze the reaction between the two reactants.

Mark brainliest if I helped you 

Chemistry/ Example: Take breathing for example, when you breath you breath out carbon dioxide. The CO2 can't just leave like that and only 10% binds to hemoglobin. The rest turns into carbonic acid in your blood and its plasma. However, the acid is unstable, so it turns into bicarbonate and a dissociated proton (H). You have carbonic anhydrase that converts the two so you can breath out CO2; the carbonic acid separates into H2O and CO2. This process would take a LONG time without the enzyme-- CO2 build up, even minimal amounts it lethal. 
8 0
3 years ago
Other questions:
  • The pedigree on the right shows the inheritance pattern for an X-linked recessive disorder. The mother of the individuals circle
    10·2 answers
  • Rutherford coined the term used for the simplest positive charged particle and called it the
    15·2 answers
  • What is a specialized form of diffusion
    6·1 answer
  • Define tissue and explain where it falls in the hierarchy of structural organization
    6·1 answer
  • which description best explains the role of dna in the differentiation of the cells within an organism?
    8·1 answer
  • list some of the main human activities that contribute to species extinction, do you think such actives can be justified
    9·1 answer
  • How are Species of jellyfish able to survive or be alive when they dont have a brain, and many other vital organs that a living
    11·2 answers
  • Most cells of the human body directly receive a variety of endocrine secretions through the activity of which system
    15·1 answer
  • What organelle of a cell does cell respiration take place
    9·1 answer
  • 1. Define, in your own words, homeostasis (1pt) and describe how any 3 body systems work together to maintain homeostasis. (3pts
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!