Biology

the branch of science that is concerned with the physical structure of humans, animals, or plants

She excelled in her anatomy class, fascinated by the intricate details of the human body.

a very small threadlike structure in a living organism that carries the genes and genetic information

a sex chromosome, two of which exist in female cells and only one in male cells

a sex chromosome, which is normally present only in male cells

a substance that all living organisms produce that brings about a chemical reaction without being altered itself

Enzymes play a crucial role in digestion, breaking down food into smaller molecules that can be absorbed by the body.

any foreign substance in the body that can trigger a response from the immune system

The vaccine introduces a harmless antigen to stimulate immunity.

a very small living organism that cannot be seen without a microscope and can cause a disease

to keep an egg in a favorable condition to help it develop until it hatches

The mother hen incubated her eggs in the cozy nest she had made.

an offspring of a human or animal that is not born yet, particularly a human aged more than eight weeks after conception

The ultrasound showed that the fetus was developing normally.

an unhatched or unborn offspring in the process of development, especially a human offspring roughly from the second to the eighth week after fertilization

During the first trimester, the human embryo undergoes rapid cell division and differentiation to form essential organs.

(of a female animal or human) to produce an ovum from the ovary

To understand her cycle, she tracked when she ovulates.

to cause genetic changes

Exposure to radiation can potentially mutate cells and lead to genetic changes.

a living organism that is different from its kind because of a genetic change

a colorless liquid consisting of white blood cells that helps to prevent infections from spreading

Swelling can occur when lymph is not properly drained.

(biology) a basic type of cell in a multicellular organism, which develops into different kinds of cells with different functions

a thin sheet of tissue that separates or covers the inner parts of an organism

The cell membrane protects the interior of the cell.

any of a class of organic substances that do not dissolve in water that include many natural oils, waxes, and steroids

any organic compound that creates the basic structure of proteins

a cell that is responsible for transmitting nerve impulses between the brain and the rest of the body

Neurons transmit signals at speeds of up to 120 meters per second.

a chemical substance that transmits messages from a neuron to another one or to a muscle

Dopamine is a neurotransmitter involved in mood regulation.

an organelle that is abundantly present in most cells and is responsible for energy production

The mitochondrion is a membrane-bound organelle found in most eukaryotic cells.

not needing free oxygen to function

a steroid hormone that the body produces and is used in medicine to help cure skin diseases

High levels of cortisol can increase stress and anxiety.

a hormone related to gender that is produced by male body to develop typical male features

a hormone that is responsible for controlling the level of glucose in the blood, the lack of which can cause diabetes

(of a cell, gland, or organ) to produce and release a liquid substance in the body

Salivary glands secrete enzymes that aid in the digestion of food.

(biochemistry) a chemical substance that carries the information from DNA to control the cellular protein biosynthesis

RNA transcribes genetic information from DNA to guide protein production.

a sense organ or nerve ending that can respond to external stimuli and is able to transmit data to the central nervous system

the complete set of genetic material of any living thing

The human genome consists of approximately 3 billion base pairs of DNA, encoding all the information needed for human development and function.

having superiority in power, influence, or importance

The lion is the dominant predator in its ecosystem, ruling over other animals.

the ordering of nucleotides in DNA molecules that carries the genetic information in living cells

something that triggers a reaction in various areas like psychology or physiology

In a lab experiment, the researchers applied a visual stimulus to study participants to observe and measure their neurological responses.

a hormone primarily responsible for female reproductive development and regulation

a vehicle that can use two or more different sources of power as needed, often petrol in addition to electricity or diesel

The latest hybrid SUV seamlessly switches between its petrol engine and electric motor during city commutes to maximize fuel economy.

to create an exact genetic copy of an organism or replicate something closely

Scientists successfully cloned the sheep "Dolly" from an adult cell.