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Archy [21]
3 years ago
7

Calcium sulfide forms when calcium loses 2 valence electrons to sulfur. What type of a bond is formed? covalent ionic

Biology
1 answer:
il63 [147K]3 years ago
4 0
A covalent bond is formed
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Help me what’s the answer
Kazeer [188]
The answer i believe is “c”
5 0
3 years ago
The ________ is the single shape a protein adopts under physiological conditions. most stable enantiomer primary structure minim
stellarik [79]

Answer:

Native conformation

Explanation:

Native conformation is the correct structure or shape a protein should assume when folded, of which the protein is able to perform its operational function. Outside a proteins native conformation, or when denatured, the protein becomes unable to perform its usual main functions. The native conformation of a protein is the shape it takes in other to be functional.

7 0
3 years ago
A method used by horticulturalists when they rotate the use of fields—planting crops on a particular piece of land for a period
svetoff [14.1K]

Answer:

The correct answer will be- Crop rotation

Explanation:

When the growth of a type of crop which uses soil nutrients in abundance and then growing another crop in the same filed led to the decrease in the production of the next crop.

Thus farmers adapted to avoid such farming practices and developed a new practice which allowed the land to become fertile again so that the growth of next crop will not be affected.

The practice involved the planting of a crop on a piece of land then leaving the soil ploughed and unsown for a longer period of time and growing corp on another piece of land allowing the time to restore the nutrient content. This practice is known as "crop rotation".

Thus, crop rotation is the correct answer.

8 0
3 years ago
hypothesis that guided some biochemical research in the 1930s was: “Citric acid plays an important role in the breakdown of carb
aev [14]

Answer:

b. How does food yield energy?

Explanation:

The main question is how energy is produced from food such as carbohydrates, fats and proteins etc. First the carbohydrate is converted into glucose molecule and then glucose is absorbed by the cell and is broken down in the mitochondria of the cell with the addition of oxygen and generate energy in the form of adenine tri phosphate. All the scientists wants to know that how a food is converted into energy.

5 0
3 years ago
Which of the following is a unifying characteristic of life?
lisabon 2012 [21]

Answer:

where is option I can't see

5 0
3 years ago
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