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cricket20 [7]
3 years ago
12

Which statement below best describes how the chemical indicator bromthymol blue (BTB) works? BTB responds to the presence of car

bon dioxide by changing color. BTB is added to aquarium water to keep it blue. BTB will respond to the presence of oxygen by changing color.
Biology
2 answers:
shusha [124]3 years ago
8 0

BTB respond to the presence of carbondioxide by changing color.

Verdich [7]3 years ago
7 0

Answer:

BTB respond to the presence of carbondioxide by changing color.

Explanation:

Bromthymol blue is a chemical indicator dye that changes it color to yellow in the presence of an acid. It respond in the presence of carbondioxide and form carbonic acid, therefore lowering the pH. It becomes blue if the pH is greater than 7.6, it is green if the pH is between 6-7.6 and yellow if the pH is less than 6.

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Answer:

Increase awareness of what I eat

Explanation:

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  3. Eat more berries it has a wide range of differing antioxidants. It's important for scavenging reactive oxygen species in the body that could damage the cells.
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  6. Eat more nuts it has magnesium and potassium which are important for over 300 enzymatic reactions in the body and also critical for mood, alertness, sleep and pain management.
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  8. Switch to pink salt get trace minerals that are not always available in iodized salts. These are important for the conduction of electrical impulses in the brain and increase reaction response and shorten reaction time.
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3 years ago
Where is the insertion for the deltoid muscle?
Andrej [43]

Answer:

c. Humerus

Explanation: is correct

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2 years ago
Which of the following is homozygous dominant? a AA b Aa c aa
GarryVolchara [31]

Answer: a). AA

Explanation: Every trait is controlled by at least a pair of gene. Genes have different forms known as alleles. Alleles can be dominant or recessive. A dominant allele expresses itself in the presence of a recessive allele and masks the effect of a recessive allele. A recessive allele cannot express itself in the presence of a dominant allele and it's effect is masked by a dominant allele. Dominant alleles are usually written in upper cases such as A, T, while recessive alleles are usually written in lower cases such as a, t. The two alleles that determines a trait is called a genotype. A genotype can be homozygous if the two alleles are identical such as in AA or aa

and can be heterozygous if the two alleles are not identical such as in Aa, Tt.

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