82 results found

Search Results for: maturity

Maturity

maturity A state of full development or completed... 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

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Plant cell

Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More

Seed Plants

There are two main subdivisions of seed plants—the ones without covered seeds, the gymnosperms, and the ones with covered... Read More

Fecundity

Fecundity Definition The meaning of fecundity is the reproductive rate (fecundity rate) or the performance of an individual... 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

Bryophytes

Bryophytes (nonvascular plants) do not have xylem or phloem. The habitations of this plant group are widely varied and... Read More

Maturation

Definition noun, plural: maturations (1) The process of differentiation (2) The process of becoming... Read More

Zygote

Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Tracheid

Definition noun, plural: tracheids (botany) A tubular cell in the xylem of vascular plants whose primary function is to... Read More

Collenchyma

Definition noun, plural: cholenchymas (botany) A fundamental type of tissue in plants characterized by cells with thicker... Read More

Cork

Definition noun, plural: corks (botany) A part of the periderm that protects the inner plant tissues from mechanical... Read More

Ground tissue

Definition noun, plural: ground tissues (botany) Any of the non-dermal, non-vascular tissue of vascular... Read More

Physical Development in Humans

The Newly Born Child Depending on the nutrients available to the child within pregnancy and the genetic makeup of the... Read More

Xylem fiber

Definition noun, plural: xylem fibers Any of the fibers made up of dead sclerenchyma cells in between the xylem vessels... Read More

Protophloem

Definition noun, plural: protophloems The first phloem to develop from the procambium Supplement The phloem is a vascular... Read More

Phloem fiber

Definition noun (botany) The elongated sclerenchyma cells in the phloem, and is responsible for providing tension strength... Read More

Memory T cell

Definition noun, plural: memory T cells A long-lived T cell that bears receptors for an antigen during its encounter with a... Read More

Osteoblast

Definition noun, plural: osteoblasts A type of bone cell that arises from fibroblasts, and upon maturity, becomes associated... Read More

Cytotoxic T cell

Definition noun, plural: cytotoxic T cells A T cell responsible for inducing death to target cells (e.g. infected somatic... Read More

Natural killer T cell

Definition noun, plural: natural killer T cells A T cell capable of destroying infected cells and infective particles upon... Read More

Ovarian cycle

Definition noun The cycle that depicts the changes in the ovarian follicle happening during a menstrual cycle, and is... Read More

Ascaricide

Definition noun, plural: ascaricides A pharmaceutical drug used for the treatment of ascariasis Supplement Ascaricides are... Read More

Filaria

Definition noun, plural: filariae Any of the small, threadlike parasitic nematodes of the superfamily Filarioidea that... Read More

T-helper cell

Definition noun, plural: T-helper cells A type of T lymphocyte that assists by activating antigen-presenting leukocytes,... Read More

Filarioidea

Definition noun (taxonomy) A superfamily of the phylum Nematoda and is comprised of small, threadlike parasitic nematodes... Read More

Directed case study method for teaching human anatomy and physiology

DIRECTED CASE STUDY METHOD FOR TEACHING HUMAN ANATOMY AND PHYSIOLOGY William H. Cliff and Ann W. Wright Department of... Read More

Xylem vessel

Definition noun, plural: xylem vessels (botany) One of the tracheary elements of xylem that is characterized by being made... Read More

Phloem sclerenchyma

Definition noun The sclerenchyma cells in the phloem of many vascular plants, and is responsible for providing mechanical... Read More

Sieve element

Definition noun (botany) A food-conducting cell in the phloem of vascular plants Supplement The phloem is the vascular... Read More

Sieve-tube element

Definition noun, plural: sieve tube elements A specialized type of sclerenchyma cell that forms a sieve tube of... Read More

Chlorenchyma

Definition noun A parenchyma cell with chloroplasts, and is therefore photosynthetic Supplement Vascular plants are... Read More

Sclereid

Definition noun, plural: sclereids A type of sclerenchyma cell of varying shapes but are typically shorter than sclerenchyma... Read More

Cork cambium

Definition noun, plural: cork cambiums or cork cambia A meristematic tissue that divides mitotically to give rise to new... Read More

Indirect life cycle

Definition noun A type of parasitic life cycle wherein the parasite is transmitted indirectly from one host to the next,... Read More

Coccidia

Coccidia (singular: coccidium) are sporozoans that live as parasites of the digestive tracts of certain animals. The... Read More

Developmental Biology

Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More