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Feliz [49]
4 years ago
10

Which body segment of an insect contains the heart and most of the digestive and excretory systems?

Biology
1 answer:
I am Lyosha [343]4 years ago
5 0
The organs are in the abdomen
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Predict: Of the molecules shown on the molecules pane, which do you think are inputs (ingredients) in photosynthesis? Which do y
miv72 [106K]

Answer:

Input ingredients = water, carbon dioxide, energy from the sun

Output ingredients = glucose, oxygen

Explanation:

Photosynthesis involves the production of carbohydrates from inorganic products. The chemical equation for the process is represented below:

6CO_2 + 6H_2O + sunlight--> C_6H_1_2O_6 + 6O_2

Water and carbon dioxide molecules combine in the presence of sunlight radiation to give glucose and oxygen molecules.

Input ingredients = water, carbon dioxide, sunlight

Output ingredients = glucose, oxygen

5 0
3 years ago
Aproximately 30% of substitution mutations result in no change in the genetic code, why?
Zepler [3.9K]

Answer:

1. A mutation that causes changes in the amino acid sequence downstream of the mutation is called FRAME SHIFT MUTATION. The correct option is D. A frame shift mutation is one in which the mutation is caused either by the addition or deletion of base pairs in the DNA of a gene, this results in the translation of the genetic code in the wrong reading frame starting from the position of the mutation to the end of the affected gene. Frame shift mutation result in the production of nucleotide that are not divisible by three. Because the nucleotide codons are usually pair in three, frame shift mutation causes a change in the reading frame and this result in a protein translation that is different from the original.

2. The correct option is D.

If the third base A is deleted from the codon given in the question, it will results in the formation of frame shift mutation and this will change the translation of the protein from leucine to tyrosine. The deletion will not affect the first amino acid in the sequence.

3. Albinism is a type of mutation that can is described as DELETERIOUS. The correct option is D.

Deleterious mutation refers to any type of mutation which reduces the fitness of a living organism. Albinism is a medical condition in which an individual experience a partial or total loss of skin pigmentation. The condition is a genetic disorder that is caused by lack of adequate amount of melanin pigment in the skin. Albinism causes vision loss, extreme sun sensitivity and stigma.

4. The type of mutation that occur is INSERTION. The correct option is B. Insertion is a type of mutation in which one or more nucleotide base pairs are added to a DNA sequence. The inserted base pairs can be small or large. Examples of disease conditions that resulted from insertion mutation are Huntington's disease and fragile X syndrome.

5 0
3 years ago
The role of the liver in waste removal is to:
Alenkasestr [34]

The role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.

<h3>What is liver and its function?</h3>

The liver is a very important organ of human body and the weight of liver is 1.5 kg and width of liver is 15 cm. The colour of liver is reddish - brown.

The main functions of liver are it carries out the function of protein's metabolism and it excretes bile and it is also responsible for excreting cholesterol, hormones, bilirubin and drugs.

The liver also stores vitamins, glycogen, and minerals so it the center of storage also.

As liver is a very important organ so to maintain it's health a person have to maintain a healthy weight, take a balanced diet, regular exercise, avoiding toxins, and  less use of alcohol leads to keep the liver safe and healthy.

Therefore, the role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.

Learn more about liver here:

brainly.com/question/15637828

#SPJ2

3 0
2 years ago
Read 2 more answers
An adaptation is __________.
Komok [63]

Answer:

The correct answer is - D. a reproductive advantage in the current environment.

Explanation:

Evolutionary adaptations are the adjustments and alteration of the physical structures of the organisms or their traits according to the environment change and it is hereditary. These adjustments or changes help in improving its ability to survive and reproduce and increase its number to pass the genes.

In other words, Evolutionary adaptations are characteristics or traits that are hereditary and enhance an organism's ability to survive and reproduce in a particular environment.

4 0
3 years ago
How can twins be identical?
KATRIN_1 [288]
A,because they have exactly the same genetic information.
8 0
3 years ago
Read 2 more answers
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