Active transport would be required because in order to move across a membrane against the concentration gradient, energy is needed. Active transport uses energy to help molecules/ ions achieve this movement.<span>
Hope this helps!</span><span />
1. ^^Savanna is not a continent.
2. Antarctica is not mostly desert at all. Its cold.
3. Answer: Africa...
The energy transformations involved going back to the source is shown by the above <span>sketch:
</span><span>Chemical energy ---> Kinetic energy--->Heat energy.
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I hope that this is the answer that you were looking for and it has helped you.
Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. This is an example of how protein is used for maintaining fluid and electrolyte balance.
<h3>What is Protein?</h3>
- Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues.
- Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and moving molecules from one place to another.
- The primary way that proteins differ from one another is in the order of their amino acids, which is determined by the nucleotide sequence of their genes and typically causes a protein to fold into a certain 3D structure that controls its activity.
<h3>What Constitutes Proteins? </h3>
- Amino acids, which are tiny chemical compounds with an alpha (central) carbon atom coupled to an amino group, a carboxyl group, a hydrogen atom, and a variable component known as a side chain, are the building blocks of proteins.
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Answer:
B. Excretory system
Explanation:
<em>Because the excretory system is made to remove urine which consists of waste materials such as excess salts and water. The kidneys are present in it as well. If there is too much water in the body the excretory system will produce urine with higher water concentration so whiteish urine will be produced and if there is a low amount of water in the body the excretory system will produce urine with lower water concentration so yelloish or greenish urine will be produced</em>
