Answer:
Symmetric encryption is faster than asymmetric encryption, but it cannot be used to provide non-repudiation of contracts.
Explanation:
Symmetric encryption is a type of encryption where only one key (a secret key) is used to both encrypt and decrypt electronic information. Symmetric encryption uses a single key that needs to be shared among the people who need to receive the message while asymmetrical encryption uses a pair of public key and a private key to encrypt and decrypt messages when communicating. Symmetric encryption cannot be used for non-repudiation because the key is shared by both parties, making it difficult to prove who created and encrypted the document.
Answer:
A compound consists of two or more types of elements held together by covalent or ionic bonds.
Explanation:
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds
Answer:
Evaporation of sweat off the skin is what actually makes our skin feel cooler, rather than temperature.
Explanation:
If you are outside on a hot and humid day, you are sweating because you are hot, but the sweat does not evaporate very well. This makes you feel more hot and also makes you have that "sticky" feeling. hope this helps you :)
Answer is 50.
Protein is a macromolecules and is composed of its units called amino-acids. In a protein molecule amino acids are bound together with peptide bonds to form polypeptides. Thus protein is a polypeptide. The number of amino acids in a protein molecules varies. Some polypeptides contain only 3 amino-acids, but it is not regarded as proteins due to its structural and functional differences between a simple polypeptide chain and a protein. A polypeptide of 50 amino acids is biologically functional protein that possesses all the properties of a protein. Most of the protein made of thousands of several polypeptide chains with thousands of amino-acids organised in complex structures.
Answer:
The second one is correct
Explanation:
A leukocyte is responsible for the immune system