18 INTERESTING BIOLOGY TOPICS TO RESEARCH AND EXHIBIT - BIOLOGY - 2025

In this article we suggest a list of interesting topics in biology to investigate and expose that are of great importance both for knowledge and for life itself and on which it is worth exploring and making known.

The word biology comes from the Greek (bios) “life” and (logía) “study of”, being able to say that it means “study of life”. Biology is a branch of science that studies living beings in all their aspects, related to their origin, evolution, structure, classification, reproduction, and relationships with their environment.

The general purpose of this area is the study, analysis and understanding of living organisms, such as animals, plants and human beings through their biomolecular chemical composition, their cellular structure, their processes for the transformation of energy, the transmission of hereditary characters or genetics, as well as their interaction with the environment.

Given the level of development of various biological studies on nature, animals, plants, the human body, among others, the level of knowledge has increased to better understand life forms.

Such is the case of the study of DNA (deoxyribonucleic acid), which has a double helix structure. Also on viruses such as AIDS, human papilloma, eukaryotic cells, etc.

In this way it has been possible to make some discoveries that have provided solutions and helped in some opportunities to save lives. An example is the case of vaccines against various diseases such as typhoid fever.

You may also be interested in this list of topics to expose.

Interesting topics to expose or research in biology

Below are some topics to investigate and present, which could arouse the interest of both students and teachers.

1- Characteristics and functions of living beings

All living beings are made up of cells, in addition, they fulfill vital functions: they are born, grow, feed, breathe, reproduce and adapt to the environment in which they live.

To identify if a being is alive, it must meet all these characteristics, otherwise it is inert or abiotic, that is, it is not a living being.

2- The 5 kingdoms of living beings

The kingdoms of nature are the different forms of organization of living beings. This classification is called the taxonomy of living things.

• Animal Kingdom.
• Vegetable Kingdom or Plants.
• Kingdom of the Mushrooms.
• Kingdom Mónera or bacteria.
• Protist kingdom.

3- The cell

It is the main unit for life. Living beings are made up of cells. They give the body structure, take nutrients from food, to transform them into energy and perform specific functions. Organisms can be:

• Unicellular, which have a single cell, like bacteria, or
• Multicellular, made up of more than one cell, like animals.

4- Parts and functions of the cell

Each cell has a structure, with certain functions, which are presented below:

• Cellular membrane.
• Cytoplasm
• The nucleus
• Organelles: Lysosomes, mitochondria, and chloroplasts.

5- Types of cells

There are several types of cells that determine the species to which a living being belongs:

• Prokaryotic
• Eukaryote: animal, vegetable.

6- The evolution of man

It is the entire process of transformation that man has presented from homo to sapiens, specifically:

• Homo habilis.
• Ergaster.
• Erectus
• Predecessor.
• Sapiens.
• Cro-Magnon.
• Sapiens sapiens.

7- Characteristics of the animal kingdom

The animal kingdom is made up of multicellular organisms, which have eukaryotic cells and which in some species unite to create tissues and organs.

They feed on other living beings and are heterotrophic, among other characteristics.

8- Classification of animals

Animals can be divided according to several aspects:

• Form of birth: Oviparous. Viviparous and Ovoviviparous.
• Way of breathing: Pulmonary, branchial, tracheal, and through the skin or skin.
• Symmetrical shape: bilateral symmetry, radial symmetry, asymmetric.
• Internal skeleton or bone forms: vertebrate animals and invertebrate animals.

9- The kingdom of plants

Plants are multicellular and eukaryotic organisms. Their cells have chloroplasts to carry out photosynthesis and make their food, that is, they are autotrophs. They do not have displacement and their reproduction can be sexual or asexual.

Among its main parts are: The root, the stem, the leaves, the flower and the fruit.

10- Classification of plants

According to the way they reproduce, they are classified as follows:

• Reproduction by seeds: Angiosperms and gymnosperms.
• Reproduction by spores: Ferns and mosses.

11- Biodiversity

Biodiversity is made up of all the different living beings found in the world. The more species there are on earth, the greater the biodiversity. It is an indicator of the richness and variety of species that an ecosystem has. Some topics of interest are:

• The ecosystems.
• Loss of biodiversity.

12- water

Water is a vital element, produced by the union of 2 hydrogen atoms and 1 oxygen atom, H ₂ This binary compound is essential for living beings and it is important to study the following:

• Characteristics of the water.
• Water cycle.
• Water quality.
• Water care and conservation.
• Tips for using water responsibly.

13- Heredity and genetics

When organisms reproduce, some properties are transferred to offspring.

If the reproduction is asexual, the descendants are exact to their parents; On the other hand, if it is sexual, through the relationship between two individuals, half of the characteristics of each parent are shared. Some points to broaden the topic are:

• The DNA.
• The Chromosomes.
• The genes.
• Mendel's Law.

14- respiratory system

Respiration is a vital function, that is, if an organism does not breathe it dies in a very short time. This process consists of inhaling air and taking it to the lungs, to look for the oxygen that the body needs and exhaling to release the carbon dioxide. The following points can be investigated in this regard:

• Types of respiration
• Conformation of the human respiratory system.
• Respiratory diseases.

15- Garbage and waste

Waste is the materials that through a process can be recycled or reused for another activity.

When such waste can no longer be reused or recycled, it becomes a waste, better known as garbage.

Therefore, they differ in that the waste can be used, but the waste cannot and become garbage. Some details to consider are:

• Types of waste.
• Selection of waste and collection in containers.
• Rule of the 3 Rs: Reduce, Reuse and Recycle.
• Efficient management of solid waste or garbage.

16- Conservation of the natural environment

Protecting nature has become an urgency for the preservation of the terrestrial flora and fauna, as well as the different ecosystems. The destruction of these is a serious problem that affects even humans.

How to preserve nature without hindering human development is the big question that governments and environmental institutions have on the table.

17- Climate change

Climate change is being studied more and more in more and more universities, biology centers and environmental institutions.

The action of the human being is assuming a modification in the Earth's climate which, in turn, is modifying the habitual behaviors of the planet's organisms.

18- Drugs

Drugs of biological composition, that is, those produced by living organisms, have an increasing impact in general medicine with respect to chemical pharmacology. For example, the general vaccine or insulin have a biological origin.

There is more and more research on serious diseases such as cancer or multiple sclerosis in which significant advances have been seen thanks to this type of drug.

References

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4. Dinh, H. (2017) Sciencing: 5 Central Themes of Biology. Recovered from: www.sciencing.com
5. What Are the 10 Themes of Biology? Recovered from: www.education.seattlepi.com
6. General biology. Recovered from: www.portal.uned.es.