Biology questions

Cells are the basic structural and functional units of all known living organisms and arise from pre-existing cells.

Cells represent the simplest level of organization capable of independent life.

Leukocytes are white blood cells, which are divided into granulocytes and agranulocytes based on the presence of granules in their cytoplasm.

Zoology is the branch of biology that studies animals.

Blood platelets are non-cell blood elements.

The study of plants.

A double layer of lipids in which proteins are immersed; the base of the cytoplasmic membrane.

The study of extinct organisms via fossils.

Prevention of blood loss.

Cells with a nucleus and other complex organelles.

Systematic sciences classify and organize living organisms; anatomy studies the structure of organisms.

Cells with a nucleus and membrane-bound organelles are eukaryotic. Cells lacking these are prokaryotic.

Miller-Urey experiment simulated early Earth conditions; it included water, hydrogen, nitrogen, methane and ammonia but not necessarily phosphorus.

Proteins are the most abundant organic substances in blood plasma by weight.

Organelles not found in prokaryotic cells.

Lancelets illustrate that they are arranged in segmented blocks.

Atrioventricular and semilunar valves.

The study of parasitic organisms.

A double layer of phospholipids with proteins immersed.

Single-celled organisms lacking membrane-bound organelles like a nucleus.

Proteins in blood plasma responsible for regulation, transport, immunity, and vessel regeneration.

The study of the microscopic structure of tissues.

A complex of all biological sciences and disciplines.

Cells lacking membrane-bound organelles.

Prevent the backflow of blood, ensuring unidirectional flow through the heart.

The study of parasites and thier relationship with their host.

The contraction phase of the heart, during which blood is pumped out.