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Sliva [168]
3 years ago
5

Which of the following statements about a controlled experiment is accurate?

Biology
1 answer:
kirill [66]3 years ago
6 0

Answer: There is no following statements. But a controlled experiment is a scientific test that is directly manipulated by a scientist, in order to test a single variable at a time. The variable being tested is the independent variable, and is adjusted to see the effects on the system being studied.

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1,000,000 bacteria living in a 5cm^2 (squared)
valina [46]

Answer:

Bacteria grows very fast.

Explanation:

There are 1,000,000 bacteria living in a 5 centimeter square means that each centimeter square has 200,000 of bacteria. This figure shows that the bacteria grows rapidly and having very large population in a very little space due to its smaller size. It grows in colonial form and have a very short life cycle. It reproduce through asexual reproduction which is binary fission in which one bacterial cell divides into two cells.

8 0
3 years ago
When a 9:3:3:1 ratio of phenotypes is produced by a cross between two individuals, which phenotypes are present in the rarest cl
Over [174]

The answer is Both features have a recessive phenotype in these offspring.

An individual's phenotype is defined by their genotype and expressed genes, as well as apparent traits such as hair colour or type, eye colour, body shape, and height. It is determined by the genotype, but it is also modified by environmental circumstances.

What is genotype?

  • The genotype of a person can reveal their genetic makeup.
  • It determines which qualities will be expressed.
  • Organisms with similar appearances do not share the same genotype.
  • Biological tests can be used to determine a person's genotype.

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3 0
2 years ago
Gene expression is the process whereby genetic information in the cell is used to produce proteins. this is referred to as the c
leonid [27]
<span>you had some missing info...BUT, you are in luck, because I just took that test a few days ago.
Here is your answer:
</span><span>A.The molecule that carries information from the DNA specifying a polypeptide to ribosomes.
B. The synthesis of an RNA copy of a gene. 
C. The synthesis of a specific sequence of amino acids on a ribosome. 
D. A molecule found in the nucleus of cell that contains the cell's genome. 
E. A molecule made of amino acids that correspond to the genetic information in a structural gene.

</span><span>A. mRNA
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C.Translation
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E.Polypeptide</span><span>

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8 0
3 years ago
Decide whether each statement describes saturated fat, unsaturated fat, or both saturated and unsaturated fats.
Darina [25.2K]

Answer:

Statement 1.) Both saturated and unsaturated fats.

Statement 2.) Saturated fat

Statement 3.) Unsaturated fat

Statement 4.) Unsaturated fat

Statement 5.) Both saturated and unsaturated fats.

Statement 6.) Saturated fat.

Explanation:

Fatty acids are straight chain carbon compounds of varying lengths. It is an important component of lipid in plant and animals. All fats are known to contain nine calories per gram, therefore can add to the weight of an individual. There are two type of fatty acids which includes:

--> Saturated fatty acids: these are fatty acids that contains no double bonds making it solid at room temperature. They are usually found in animal products such as milk, cheese and meat. They are absorbed in the villi of small intestine after digestion. One of the disadvantages of consuming diet rich in saturated fat is Saturated fats might increase LDL cholesterol levels. These are the bad cholesterol which are affected by inhibiting the LDL receptor activities leading to its increase. This can lead to heart disease conditions.

--> Unsaturated fatty acids: These are fatty acids which may contain one or more double bonds making it liquid at room temperature. They are found in plant oil (omega 6) and fish oil (omega 3). When consumed, they are absorbed in the villi of small intestine and helps maintain a good balance of cholesterol in blood.

7 0
3 years ago
Read 2 more answers
Which of these would result in an increase in the osmolarity of urine? a) increased levels of aldosterone in the plasma b) incre
Alexandra [31]

Answer: Option D

Explanation:

When osmolarity of unrine increases, this makes the body to produce antidiuretic hormone(ADH). The kidney then keeps more water and ingest more water inside the body and this result in a highly concentrated urine. But if there is low osmolarity of urine, anti diuretic hormone is not produced, water is not ingested, the urine and blood will remain diluted.

7 0
3 years ago
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