58 results found

Search Results for: pointed

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Dead Man Walking

Dead Man Walking: Wade Davis and the Secret of the Zombie Poison By Patrick D. Hahn Accepted on September 4, 2007 Twenty... Read More

Horn

Horn 1. A hard, projecting, and usually pointed organ, growing upon the heads of certain animals, especially. Of the... Read More

Penile spine

Definition noun, plural: penile spines Any of the spiny projections along the glans or the shaft of the penis Supplement The... Read More

Stipulate

Stipulate Definition Stipulate meaning: Stipulate typically refers to a specific feature or characteristic of a plant's... Read More

Nail

nail 1. (Science: anatomy) The horny scale of plate of epidermis at the end of the fingers and toes of man and many apes.... Read More

Swallow

Definition noun, plural: swallows (physiology) The act of swallowing (ornithology) Any of the passerine bird species of the... Read More

Cytokinin

Plants require growth hormones for their regulated growth. Plant growth hormones or regulators (PGRs) are small organic... Read More

Apex of head of fibula

Apex of head of fibula The pointed upper end of the fibular head to which is attached the arcuate popliteal ligament and... Read More

Golgi apparatus

Golgi Apparatus Definition The Golgi apparatus is a membrane-bound organelle in eukaryotic cells. It plays a crucial role... Read More

Pondweed

pondweed (Science: botany) Any aquatic plant of the genus Potamogeton, of which many species are found in ponds or... Read More

Prickles

prickle (Science: plant biology) A hard, pointed outgrowth from the surface of a plant, involving several layers of cells... Read More

Inorganic compound

Inorganic Compound Definition An inorganic compound is a chemical compound lacking both carbon-carbon (C-C) and... Read More

Pseudopodia

A pseudopodium (plural: pseudopodia) refers to the temporary projection of the cytoplasm of a eukaryotic cell. Pseudopodia... Read More

Spicules

spicule A small, slender, sharp-pointed piece, usually on a surface, a small spike of... Read More

Physiological adaptation

If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More

Thalassophobia

Among many psychological and psychiatric disorders, one is the fear of the ocean and the fear of deep water, which in... Read More

Analogous structures

Analogous Structures Definition In evolutionary biology, analogous structures are biological structures having similar or... Read More

Lycinibacillus fusiformis

Definition noun A long rod-shaped obligate aerobe organism that is able to utilize oxygen to metabolize numerous sugars... Read More

Brown algae

Brown Algae Definition Brown algae are algal species characterized by being multicellular and having a brown or... Read More

Enterobius vermicularis

Definition noun Human pinworm that inhabits the rectum of its host Supplement Enterobius vermicularis (formerly Oxyurias... Read More

Telophase

Telophase is the stage of cell division characterized by the decondensation of chromosomes, and the nuclear envelope... Read More

Homologous structures

Homologous Structures Definition What are homologous structures? In biology, homologous structures are physical features... Read More

Intercalary meristem

The basic structural framework of plants is composed of different types of tissues. Based upon the capacity to divide, the... Read More

Euphlyctis hexadactylus

Definition noun A species belonging to the taxonomic family Dicroglossidae of the order Anura, and commonly called the green... Read More

Survival of the fittest

When we talk about evolutionary processes, the usage of the phrase "Survival of the fittest" has been very common in... Read More

The Hominids

Although humans in today's world are the most advanced species on the planet, we previously shared the exact same genetic... 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

Mitochondrial DNA not just from moms but also from dads?

If one wants to trace down lineage, that person could turn to the cell's powerhouse, the mitochondrion. This organelle... Read More

Population Growth and Survivorship

By: Maria Victoria Gonzaga Previously, we learned about biodiversity and endemism. Now, let's look at the... Read More

Null hypothesis

Null Hypothesis Definition Null hypothesis is defined as “the commonly accepted fact (such as the sky is blue) and... Read More

Photosynthesis

Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More

Replication

Replication, in the general sense, is to create a copy or a duplicate. Thus, in biology, replication is commonly associated... Read More

Sting

sting 1. (Science: zoology) Any sharp organ of offense and defense, especially when connected with a poison gland, and... Read More

Fangs

Fang 1. (Science: zoology) The tusk of an animal, by which the prey is seized and held or torn; a long pointed tooth;... Read More

Characteristic

Characteristics Definition We can define characteristics as qualities or features that describe the distinctive nature or... Read More

Hair

Hair 1. The collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the... Read More

Phenotype

Phenotype refers to the observable characteristics of an organism as a multifactorial consequence of genetic traits and... Read More

Ischial spine

Ischial spine a pointed process from the posterior border of the ischium on a level with the lower border of the acetabulum;... Read More

Ala minor

Ala minor ossis sphenoidalis --> lesser wing of sphenoid bone One of a bilateral pair of triangular, pointed plates... Read More