What is Biosemiotics? What is the main study?

American semiotician Thomas A Sebeok and others insisted on expanding semiotics to the biological world, but this area is too vague and still needs to be studied in depth. If we think of signal as a kind of symbol, semiotics can enter zoosemiotics, or even phytosemiotics, or non-verbal ideologies in young children. Sibiok identifies decoy strategies in animal behavior, which takes animal symbols far beyond the signal-response universe (Sebeok & Rosenthal 1981).

Indeed, in some of the most important aspects of animal reproduction, such as breastfeeding, feeding, and courtship, animals can sometimes be seen to give a preliminary and comprehensive interpretation of various signals. However, the vast majority of animal behaviors, such as moths fighting fires, do not have the ability to explain and adjust their responses, which is the particularity of biological signal phenomena as the object of semiotic research. The signaling behavior of organisms is the boundary of signs, which should belong to the scope of semiotic research.

Especially in today's increasingly important ecological issues, biosemiotics is becoming more and more important.

Biology is the science that studies the structure, function, occurrence and development of living organisms, including plants, animals and microorganisms.

Biology was first divided into disciplines according to groups, such as botany, zoology, microbiology, etc. Due to the diversity of biological species and people's understanding of biology, the division of disciplines is becoming more and more detailed, and a radical discipline is often divided into several disciplines, such as botany, which can be divided into algae, bryobotany, fern botany, etc.

Zoology is divided into protozoology, entomology, ichthyology, ornithology, etc.; Microorganisms are not a natural group of organisms, Nian Tan socks are just an artificial division, all tiny organisms such as bacteria and single-celled fungi, algae, protozoa can be called microorganisms, and viruses without cell morphology can also be included in microorganisms. Therefore, microbiology is further divided into bacteriology, mycology, virology, etc.

Biology is the science of what and what: the phenomena of life and the laws of life activity.

The cell is the basic unit of structure and function of an organism. It is known that all living things except viruses are made up of cells, but viral life activities must also be in cells to be realized. Generally speaking, most microorganisms such as bacteria and protozoa are composed of a single cell, which is called a single-celled organism; Higher plants and higher animals are multicellular organisms.

Cells can be divided into two categories: prokaryotic cells and eukaryotic cells. However, some people have suggested that they should be divided into three categories, that is, the ancient karyotic cells, which originally belonged to prokaryotic cells, should be separated separately as a parallel category. The discipline that studies cells is called cell biology.

A molecule is the smallest particle that exists independently while maintaining the chemical properties of a substance. Molecules have a certain size and mass; There is a certain interval between molecules; Molecules are in constant motion; There is a certain force between the molecules; Molecules can be made up of substances, and molecules can also be divided into smaller particles in chemical changes

Atom. Molecules can be converted into each other in the 3 states with the change of temperature. The properties of the same kind of molecule are the same, and the properties of different kinds of molecules are different.

The smallest molecule is an isotope of the hydrogen molecule, which is a hydrogen molecule without neutrons, called Euca, with a mass of 1Large molecules can have a relative molecular mass of more than several million. Molecules with a relative molecular mass of more than several thousand are called polymers.

A molecule is a tiny unit of matter, and it is the smallest particle that can exist independently and maintain all the original chemical properties of a substance.

Molecules are generally composed of smaller particle atoms, which can be divided into monoatomic molecules, diatomic molecules and polyatomic molecules according to the number of atoms that make up the molecule; According to the electrical structure, it can be divided into polar molecules and non-polar molecules The microstructure and shape of the molecules of different substances are different, and the ideal model of the molecule is to regard it as spherical, and its diameter is on the order of 10 -10m. The order of magnitude of molecular mass is about 10 -26kg.

It is a science that studies the laws of life phenomena and life activities.

In the early days of the establishment and development of biology, biology relied on observation and comparison methods to study organisms, and in the 18th century, biology entered the stage of experiment-based research.

Biology is the science that studies the structure, function, occurrence and development of living things, and the relationship between living things and their surroundings.

Standard Answer: Biology is the science of studying the laws of life activities of life phenomena.

Biology is a science that studies the phenomena of life and the laws of life activities. That's what I did, I don't know if it's right, the teacher hasn't changed it yet.

Biology is the science that studies the phenomena of life and the laws of life activities.

Biology is an ancient discipline. It roughly originated from agriculture and animal husbandry. It is a discipline that human beings rely on to survive in nature.

Nowadays, it is mainly divided into macro and micro. Macroscopic is represented by ecology, taxonomy, and evolution, and is mainly biased towards finding laws from groups and macroscopic objects to find solutions, such as environmental problems. Microscopic is represented by cells, nucleic acids, pathways, etc., mainly focusing on solving the fundamental mysteries of life, overcoming terminal diseases such as cancer, and species improvement, DNA sequence analysis, etc.

Microscopy now occupies the vast majority of the biological world, because the experimental conditions are relatively simple (PCR) and it is relatively easy to produce results.

But I still like the macro a little more.

Biology is a category of natural sciences. The study of the structure, function, occurrence and development of living things. and the science of the relationship between living things and their surroundings, etc.

Chemical Biology: The science that studies the chemical underpinnings of life processes.

As a basic science, biology has traditionally been the foundation of agriculture and medicine, involving crops, animal husbandry, fisheries, medicine, health and other aspects, with the continuous development of biology, its influence has broken through the traditional fields mentioned above, and extended to food, chemical industry, environmental protection, energy and metallurgical industry.

Biology is the science of what and what is studiedBiology is a category of natural sciences that studies the structure, function, occurrence and development of organisms, and it is also a science that studies the laws of life phenomena and life activities.

The purpose of studying biology is to elucidate and control life activities and transform nature for the benefit of agriculture, industry, and medical practices.