Answer:
(d) None of the above
Explanation:
The pH of your stomach must be highly acidic, because the optimum pH for pepsin, the chief stomach enzyme, is 1.5.
(a) and (b) are wrong, because both conditions are basic.
(c) is wrong, because pH 7 is neutral.
Responding to the environment is a characteristic of the life best shown by a living organism.
<h3>What is a Living organism?</h3>
This is referred to as a biological entity which is capable of transferring genetic traits to its offspring and also undergoes cell division which ensures its body parts grow. They are also involved in the search for food and other types of nutrients for their normal functioning.
Living organisms are able to perform such functions such as the following below:
- Growth
- Irritability
- Movement
- Reproduction
- Respiration
- Excretion etc.
Plants and animals possess special structures which enable them respond to different types of stimuli such as heat, cold etc. This enables the body system adjust and adapt thereby increasing the survival chances of the organism.
Read more about Living organism here brainly.com/question/17259533
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Answer:
When water evaporates, the salt is left behind. The fresh water vapor that condenses into clouds, with many of which drift over land.
Explanation:
Answer:
The correct answer is:
Includes at least two groups, one of which does not receive the experimental treatment. (B)
Explanation:
A controlled experiment is made up of at least two groups of participants (subjects). One group (the test group) receives the experimental treatment, which can be an intervention or a new drug to be tested etc, and the effect of the treatment on the subjects is measured, while the second group of similar subjects also known as the control group acts as a baseline and do not receive the treatment or intervention. They act as a baseline to ensure that the change observed in the treatment group was brought about as a result of the treatment.
<em>Note that repeating the experiment several times does not ensure accuracy of the result, rather it ensures reliability of the results hence option D is not correct</em>
