Answer:
Types of tissues:-
Nervous tissue, Epithelial tissue, Muscle tissue, and Connective tissue.
Explanation:
Nervous tissue is made up of nerve cells (neurons) and is used to carry "messages" to and from various parts of the body.
Examples are cells, neurons and glial cells.
Muscle tissue includes striated (also called voluntary) muscles that move the skeleton, and smooth muscle, such as the muscles that surround the stomach.
Examples are blood vessels, biceps and intestines.
Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).
An example is the epidermis, the outermost layer of the skin and outerlayers on internal organs.
Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues).
Examples include adipose, cartilage, bone, blood, and lymph.
The answer is D.
A retrovirus is any of a group of viruses that characteristically carry their genetic information in form of RNA. These viruses have an enzyme called reverse transcriptase from which they derive their name because they follow the first step of the central dogma backward thus "retro" which means backward.
Reverse transcriptase makes DNA from RNA template thus reversing the usual pattern of transcribing RNA using DNA as the template.
The central dogma of molecular genetics summarizes steps of protein synthesis as DNA → RNA → protein. But retroviruses have modified the process to be RNA → DNA → RNA → protein.
Although all cells have the same DNA only some parts of it are turned on depending on what the cell needs to do, so each cell turns on different parts of itself depending on what its job is.
Hope this helps!
Answer:
antibodies are produced in response to infection and that these antibodies are designed to specifically target particular antigens and bind tightly to them.
Answer:
<h2>Yes, mammals are more closely related to reptilia or birds </h2><h3>Hope it helps </h3>
