D. specialized cells, cardiac muscle, heart
A cell is the smallest level of organization, is known as the basic unit of life and they group acquiring specific functions to form the next level, tissues, in the case given, forming cardiac muscle, a kind of muscle tissue, finally, organs are structures made up of different tissues with specific functions such as the heart.
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in the human body or in general sweetie?
Organ system is your answer my sir/ma'am
the answer is a little girl has a garage and the little boy has a snake... the little girl lets the boy stick it in to hold it.
Cell; cheek cell
System; digestive system
Tissue is a group of cells, an organ is a group of tissues, a system is a group of organs, an organism is a group of systems
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1.Atom: Basic unit of all matter. (Take note that these are also made up of subatomic particles) Each atom has a property of a specific element.
2.Molecule: A molecule is a group of atoms held together by a chemical bond (Covalent bond to be specific). They differ from ions because they lack an electric charge.
3.Organelles: Organelles are components of a cell. Such examples would be the nucleus, golgi apparatus, Endoplasmic reticulum and the like.
4. Cell: Also known as the building blocks of life. They are the most basic structural, functional and biological unit of all living things.
5. Tissue: This is an aggregate of similar cells. They need to be similar cells because they all work towards a specific function.
6. Organ: an organ is a group of tissue that shares a specific function.
7.Organ system: It is a group of organs that work together to do one or more physiological function. Each system has a specific role in the body.
8.Organism: It is a living creature that is composed of a network of different organ systems that work together to sustain life.
9.Population: It is a group of similar organisms that live in a common area or environment at a given time. A population can fluctuate depending on certain factors.
10. Community: Is a group of different organisms that interact with each other in a certain area or environment at a given time.
11.Ecosystem: It can be defined as the interaction between the different communities, including the interactions with non-living elements in an environment like water, air, temperature and the like.
12.Biome: It refers to a large geographical area where ecosystems exist where the organisms are adapted to the specific environment. Examples would be desert, tundra, forest and the like.
13.Biosphere: Encompasses all the ecosystems. In other words, it consists of all the living and non-living things in the world.
a. cardiac muscle, s...