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Search Results for: growth rate

Growth Patterns

When measuring growth, it is more desirable to use dry mass as a reliable indication. However, since you can't just 'suck'... Read More

Growth rate

Growth rate (Science: biology, cell culture, Ecology) The rate, or speed, at which the number of organisms in a population... Read More

Carrying capacity

Carrying Capacity Definition What is carrying capacity? In biology and environmental science, the carrying capacity of a... 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

Population Growth and Survivorship

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

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Animal Growth Hormones

Reviewed by: Mary Anne Clark, Ph.D. As mentioned in the previous tutorial, hormones are produced in... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Limiting factor

Limiting factor in biology refers to any of the factors (variables) in an environment capable of limiting a process, such as... 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

Fecundity

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

Plant Auxins – Phototropism & Geotropism

As with animals, plants also use a variety of hormones to control their growth and development. A family of hormones called... Read More

Principles of Hormonal Control Systems

Hormones are chemical messengers that enter the blood directly upon their secretion from endocrine glands. A single gland or... Read More

Circulation

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

Density dependence

Definition noun (population ecology) An effect in which the intensity changes with the increasing population density, e.g.... Read More

Water in Plants

The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... Read More

Independent variable

Independent Variable Definition To define an independent variable, let us first understand what a variable is. The word... Read More

Decomposer

Decomposer Definition The organisms that carry out the process of decay or break down of the dead organism are known as... Read More

Prokaryote

Prokaryote refers to any of the group of organisms primarily characterized by the lack of true nucleus and other... Read More

Effect of Chemicals on Growth & Development in Organisms

Plants Plants require a large number of elements to function properly, mainly carbon, oxygen, and hydrogen, essentially... Read More

Anabolism

Anabolism Definition Metabolic processes involve the conversion of one molecule into another through a sequence of chemical... Read More

Plant Metabolism

Introduction Plants are responsible for incredible feats of molecular transformation. The processes are always being... Read More

Procaryote

Definition noun, plural: procaryotes Any of the group of organisms primarily characterized by the lack of true nucleus and... Read More

Soils

Where a plant grows and what resources are available to it is of vital importance to the life of a plant. The soil type and... Read More

Heterochrony

Definition noun, plural: heterochronies Refers to the rate of morphological transformations accomplish by the developmental... Read More

Catabolism

Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More

Selective Breeding

Reviewed by: Mary Anne Clark, PhD Thousands of years before Darwin proposed evolution by natural selection and... Read More

Heterosis

Definition noun, plural: heteroses A tendency of an organism to have superior qualities over those of the parents in... Read More

Exponential growth

Definition noun A growth in which the rate is proportional to the increasing number or size in an exponential (rather than... 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

Substrate

Substrate Definition What is a "substrate"? The underlying substances or layers are termed as substrate. The definitions of... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

Coenzyme

Enzymes can break down complicated large molecules into simpler smaller ones, they can combine small molecules or atoms to... Read More

Interspecific competition

Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More

Nail matrix

Definition noun The area consisting of mitotically active layer of cells at the base of the fingernail or the toenail and... Read More

Allee effect

The Allee effect is a phenomenon in biology characterized by a correlation between population size or density and the mean... Read More

Inbreeding depression

Definition noun, plural: inbreeding depressions The loss of vigour or the reduced biological fitness in a particular... Read More

Pith

Pith Definition In general, the term "pith" refers to the "soft inner portion" of something. In botany, a pith refers... Read More