Chromosome number varies from one organism to another. or example, humans have 46 chromosomes while bacteria have only one chromosome.
The problem associated with the chromosome number of various organisms faced by evolutionists is that with the decrease in the size of an organism, the number of chromosomes also decrease. Thus, it becomes difficult to find and study the chromosomes.
To perform this test to check if gold is real, make a light, tiny scratch on the item using a small nail file. Choose a spot that is not noticeable if possible. Use a dropper to apply a small drop of nitric acid to the scratch. If there is no reaction, then the piece is probably made from real gold.
Answer:
amino acids are organic compunds.....
Answer:
(D) Enzymes can function only within living cells.
Explanation:
<em>Enzymes are biological molecules that are proteinous in nature and speed up the rate of biological reactions.</em>
Option A is true because enzymes are not used up or changed when they are used to catalyze reactions
Option B is true. Enzymes are very specific with regards to the reactions they take part in.
Option C is true. Some enzymes contain non-protein component that assist them in their functioning. These non-protein components are called co-factors.
Option E is true. Because enzymes are proteinous in nature, they can be destroyed/denatured by high temperatures.
<em>The only untrue option is D. Some enzymes can function outside living cells. For example, the enzymes involved in digestion can function not just within living cells but also outside it. The functions of some of the digestive enzymes can be demonstrated in the laboratory.</em>
The correct option is D.
Control group
Explanation:
The control group usually serves as a reference for comparison during a scientific investigation.
What is a control group?
- The control group is an experimental group not being tested for.
- it does not receive any modification or design from the scientist.
- It is designed as a reference for the main experiment
- Often times, it is isolated from the main experiment and the independent variables cannot influence the outcomes of the experiment.
Learn more:
Controlled experiment brainly.com/question/1621519
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