Many cells, bacteria, and other microorganisms are transparent to visible light and must be stained for microscopic investigation.

Many species are single-celled and microscopic ( including phytoplankton and other microalgae ); many others are multibehrviour to one degree or another, some of these growing to large size ( for example, seaweeds such as kelp and Sargassum ).

Many species also emit poisonous liquid secretions or hydrogen cyanide gas through microscopic pores called odoriferous glands along the sides of their bodies as a secondary defense.

Many salts and organic substances exhibit the same tendency, yielding beautiful spherulite crystallizations when melted and cooled rapidly on a microscopic slide.

* Megakaryocytes: Mature Many microscopic images of mature megakaryocytes including in disease settings.

Many trials include data on pooled groups of patients with Wegener's and microscopic polyangiitis.

Many physicists simply give up on a microscopic approach, and make informed guesses of the expected phases ( perhaps based on NJL model results ).

Many of the differences between classical and quantum electrodynamics can be accounted for by the role that the longitudinal and time-like polarizations play in interactions between charged particles at microscopic distances.

Many related species of Mitrula look identical without microscopic study.

Many aquatic salamanders and all tadpoles have gills in their larval stage, with some ( such as the axolotl ) retaining gills as aquatic adults.

Many aquatic plants include lilies and pondweed.

Many of the highly aquatic species, however, have no muscles in the tongue, and do not use it for capturing prey, while most other species have a mobile tongue, but without the adaptations to the hyoid bone.

Many aquatic species migrate from and to seagrass either daily or at certain stages of their life cycle.

Many species of modern primates demonstrate some sort of aquatic behaviors ( such as swimming, wading or diving ) and use of aquatic environments ( for thermoregulation, display behavior, range, diet and predation ) but many do not display the traits posited by AAH, suggesting the traits posted as evidence for the AAH may facilitate aquatic behavior rather than evolving as a result of it.

Many tropical fish have been released, but blue tilapias ( Oreochromis aureus ) cause damage to shallow waterways by creating large nests and consuming aquatic plants that protect native young fish.

Many species in wetland systems are unique due to the long period of time that the ecosystem has been physically isolated from other aquatic sources.

Many small fish and other small aquatic animals live in the sand.

Many small aquatic animals use plants like duckweed for a home, or for protection from predators.

Many chytrids are aquatic ( mostly found in fresh water ).

Many Apteronotids are aggressive predators of small aquatic insect larvae and fishes, though there are also piscivorous and planktivorous species.

Many types of aquatic animals commonly referred to as fish are not fish in this strict sense ; examples include shellfish, cuttlefish, starfish, crayfish and jellyfish.

Many species lack an aquatic larval stage.

Many of the true frogs are aquatic or live close to water.

Many modern athletic and aquatic facilities provide showers for use by patrons, commonly in sex segregated changing rooms.

Many aquatic animals feed on L. setiferus, including fish such as red drum ( Sciaenops ocellatus ) and turtles such as the loggerhead sea turtle ( Caretta caretta ).

Many unique communities, particularly aquatic and dune systems, are limited in distribution and separated by vast expanses of inhospitable, arid desert terrain.

Many aquatic play features are based around splash pads which have approximately

Many splash pads are designed to appeal to young children, but a more recent trend has been to design similar spaces that include more sophisticated aquatic play features that appeal to adults as well.

Many ' common ' Tequesta relics were found at the site — tools and perhaps decorative items made from shells and other aquatic materials like sharks ' teeth — but there were a few pieces discovered that did not fit.

Many occur in aquatic habitats.

Many animals, such as kangaroos and dingoes, hide in bushes to rest and keep cool during the heat of the day.

Many animals rear up on their hind legs whilst fighting or copulating.

Many hunt in packs and are social animals, giving them an advantage over larger prey.

Many animals that hunt other animals evolved eyes that face forward, thus making depth perception possible.

Many are preyed upon by other animals including starfish, sea slugs, fish and turtles.

Many Earth plants and animals undergo major biochemical changes during their life cycles as a response to changing environmental conditions, for example, by having a spore or hibernation state that can be sustained for years or even millennia between more active life stages.

Many people at the time viewed horse-drawn transit as unnecessarily cruel, and the fact that a typical horse could work only four or five hours per day necessitated the maintenance of large stables of draft animals that had to be fed, housed, groomed, medicated and rested.

Many members of this family are a normal part of the gut flora found in the intestines of humans and other animals, while others are found in water or soil, or are parasites on a variety of different animals and plants.

Many plants have evolved fruits that are attractive as a food source to animals, so that animals will eat the fruits and excrete the seeds some distance away.

Many studies have found that certain fears ( e. g. animals, heights ) are much more common than others ( e. g. flowers, clouds ).

Many plants bearing edible fruits, in particular, have propagated with the movements of humans and animals in a symbiotic relationship as a means for seed dispersal and nutrition, respectively ; in fact, humans and many animals have become dependent on fruits as a source of food.

) Many animals and plants are sentient, semi-civilized species competing with surviving humans.

Many medicines, including insulin and many immunizations are developed in transgenic animals.

Many of those who remained were now crofters: poor families living on " crofts "— very small rented farms with indefinite tenure used to raise various crops and animals, with kelping industry ( where men burned kelp for the ashes ), fishing, spinning of linen and military service as important sources of revenue.

Many fragments of ceramic figurines have been recovered from there, figures of animals and birds, and also fertility dolls.

Many sectors were left in ruins and ancient monuments became fields of grass used as pastures for animals, thus the Roman Forum became the campo vaccinio: the field of cows.

Many larger animals begin their life as zooplankton before they become large enough to take their familiar forms.

Many land animals also make much use of the shore and intertidal habitats.

Many animals, including humans, have two eyes with overlapping visual fields that use parallax to gain depth perception ; this process is known as stereopsis.

Many cities and towns have local ordinances limiting the number of pets a person may have, although a certain number of animals may be kept for business purposes.

Many species of the Tetraodontidae, Triodontidae and Diodontidae are further protected from predation by tetrodotoxin, a powerful neurotoxin concentrated in the animals ' internal organs.