Theory:

Difference between epithelial and connective tissue:
Epithelial tissue
Connective tissue
Throughout the animal body, epithelial tissue lines the cavity and surfaces of organs and blood vessels.
Connective tissue in the body connects and separates various types of tissues and organs.
Cells in epithelial tissue are tightly packed together.
In connective tissue, cells are scattered around in an extracellular matrix.
It is located above the basement membrane.
It is located below the basement membrane.
The tissue developed from the germ layers of ectoderm, endoderm and mesoderm.
The tissue developed from the germ layer of the mesoderm.
They perform various functions that include protection, secretion, absorption, respiration and excretion.
It is responsible for supporting and connecting organs and tissues.
Blood capillaries do not exist in epithelial tissue.
Connective tissue encompassed blood capillaries that absorb nutrients.
It is located in the skin, glands, organs, mucous membranes, and organs like the kidney, intestine and lungs.
It is located in adipose, bone, tendons, ligament, nerves, cartilage and muscles.
 
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Summary of epithelial tissue cells
  
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Different types of connective tissues
Difference between muscular and nervous tissue:
Muscular tissue
Nervous tissue
Muscle cells are specialised cells found in muscles that can shorten their length using a set of motor proteins found inside the cell.
Nerve cells are granular cells that serve as the nervous system's functional unit, transmitting nerve impulses across the body.
It is also known as myocytes.
It is also known as neurons.
The cells are multinucleated, striated, long and cylindrical.
It is made up of cyton, axons, and dendrites.
The muscular system is composed of muscle cells.
The nervous system is made up of nerve cells.
Sarcolemma refers to the plasma membrane found in muscular tissue.
Neurolemma refers to the plasma membrane found in nervous tissue.
Sarcoplasm refers to the cytoplasm of muscular tissue.
Neuroplasm refers to the cytoplasm of nervous tissue.
Muscle contraction and relaxation are regulated by muscular tissue.
The nervous system is responsible for coordinating the body's functions.
Muscle tissue is divided into three types: Skeletal muscle, smooth muscle, and cardiac muscle.
Based on function, neurons are of three types: Sensory neurons, motor neurons and relay neurons.
 
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Muscular tissue cells
 
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Nervous tissue cells
  
Summary:
  • Tissue is a set of cells that are structurally and functionally similar.
  • Epithelial, connective, muscular, and nervous tissue are the types of animal tissues.
  • Epithelial tissue is categorised as squamous, cuboidal, columnar, ciliated, and glandular based on its form and function.
  • Areolar tissue, adipose tissue, bone, tendon, ligament, cartilage, lymph and blood are classified under connective tissues.
  • Muscle tissues are classified as striated (skeletal), unstriated (smooth), and cardiac.
  • Neurons that receive and execute impulses make up nervous tissue.
Reference:
https://upload.wikimedia.org/wikipedia/commons/6/64/423_Table_04_02_Summary_of_Epithelial_Tissue_CellsN.jpg
https://www.freepik.com/premium-vector/diagram-showing-types-muscle-cells_1296621.htm
https://commons.wikimedia.org/wiki/File:416_Nervous_Tissue-new.jpg