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Svetach [21]
3 years ago
13

This is a repetition of an experiment. Scientist use multiples of these to ensure the reliability of their results. (The first t

wo letters are Tr)
Biology
2 answers:
Tamiku [17]3 years ago
7 0
The answer I think is Trials
lutik1710 [3]3 years ago
3 0

Answer: Trials

Explanation: Trial has a similar purpose to repetition. Hope this helps.

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Salts and sugars work to preserve foods by creating a
Ne4ueva [31]

Answer: Hypertonic Environment

Explanation:

The salt solution and sugar solution is used for the process of food preservation as the bacteria and microorganism are not able to grow in such conditions that is being created by the solution.

The amount of the solute is more and the solution is less concentrated. The bacteria cell has less solutes and more solvent.

As per osmosis the water from the salt or sugar solution moves out from bacterial cell shrinks and dies.

This is how the bacterial cell dies and the food is prevented from spoilage.

7 0
3 years ago
What is an instrument to measure and detect earthquakes
kvasek [131]
A seismometer is used to measure the motion in the ground caused by earthquakes, volcanoes, or explosives.
6 0
3 years ago
A derived trait of land plants is the presence of small openings that allow gaseous exchange between the plant and its environme
mel-nik [20]

Answer:

B. stomata.  

Explanation:

Stomata are openings in the surface of the plant epidermis through which gases and water vapor pass. They are formed by two elongated cells whose shape is similar to bean grain or dumbbell depending on the species.  These cells are called guard cells, and in their midst there is a slit called the ostiole.

The stomata make the exchanges between the external and internal environment of the plant. They regulate the size of the opening, so it is possible to increase or decrease the rate of perspiration of the plant.

Stomata are usually located at the bottom of the leaf, but in aquatic plants such as the water lily they are at the top and still in vertical growing plants on both sides.

6 0
3 years ago
Corals and the algae that live in coral polyps have a special relationship. Each contributes something that the other needs to s
Minchanka [31]
This is an example of commensalism
4 0
3 years ago
The complement system of defense is composed of proteins that are always present in the blood. Which statement describes the imp
Akimi4 [234]

Answer:

The correct answer is it causes immediate pathogen lysis.

Explanation:

The complement system is a part of innate immune system which is called first line of defense mechanism of our body.

         complement system along with various proteins and enzymes stimulate the phagocytic cells to attack the plasma membrane of foreign pathogen,Which ultimately result in the lysis of foreign pathogen by phagocytosis mechanism.

4 0
3 years ago
Read 2 more answers
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