20 results found

Search Results for: harder

Primary productivity

Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... Read More

Sterile

Sterile Definition What does sterile mean? In reproductive biology, we can define sterile as an inability to reproduce or... Read More

Heartwood

Definition noun The central wood in a branch or stem characterized by being composed of dead cells, more resistant to decay,... Read More

Hardwood

Definition noun (botany) The wood (secondary xylem) of an angiosperm tree Supplement Vascular plants, e.g. gymnosperms and... Read More

Softwood

Definition noun (botany) The wood (secondary xylem) of a gymnosperm tree Supplement Vascular plants (tracheophytes) are... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Fruits, Flowers, and Seeds

Flowering plants grow in a wide variety of habitats and environments. They can go from germination of a seed to a mature... Read More

Chromoplast

Definition noun, plural: chromoplasts Any of the coloured plastids associated with pigment synthesis and... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Chemotroph

Chemotroph Definition A chemotroph refers to an organism that obtains energy mainly from carbon dioxide and from... Read More

Humans are Omnivores – Evidence

A number of popular myths about vegetarianism sprung with no scientific basis. One example of such a myth is that man is... Read More

Osseous tissue

What Is Bone Or Osseous Tissue? Osseous tissue is the structure providing, hard and mineralized connective tissues. Osseous... Read More

Somaclonal variation

somaclonal variation The variation between individuals in a clone, particularly in plant clones. While the objective is... Read More

Lignification

(Science: botany) a change in the character of a cell wall, by which it becomes harder. It is supposed to be due to an... Read More

Conjugate

Conjugate Definition Conjugate in a broader sense refers to related pairs of substances or entities that are interconnected... Read More

Bone tissue

Definition noun, plural: bone tissues A mineralized connective tissue from which bones are made. Supplement The bone tissue... Read More

Moisture content

Definition noun The weight of the water contained in an object or material, usually expressed as a percentage of... Read More

Animal cell culture

Animal cell culture (Science: cell culture) Mammalian cells are fragile and harder to grow than other cell types, but their... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Examples of Natural Selection

Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... Read More