Search results
Results from the WOW.Com Content Network
The cell then divides in two, and each new cell obtains a copy of the micronucleus and the macronucleus. Ciliate undergoing the last processes of binary fission Division of ciliate Colpidium Typically, the cell is divided transversally, with the anterior half of the ciliate (the proter ) forming one new organism, and the posterior half (the ...
Each cell in the respiratory epithelium has around 200 motile cilia. [12] In the reproductive tract, smooth muscle contractions help the beating of the cilia in moving the egg cell from the ovary to the uterus. [13] [15] In the ventricles of the brain ciliated ependymal cells circulate the cerebrospinal fluid.
Structure of a plant cell. Plant cells are the cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or ...
1. (of a flower) The period during which pollen is presented and/or the stigma is receptive. 2. (of a flowering plant) The period during which flowers in anthesis are present. Not defined for some cases, such as when pollen is released in the bud. anthocarp
A botanical garden or botanic garden is a garden with a documented collection of living plants for the purpose of scientific research, conservation, display, and education. It is their mandate as a botanical garden that plants are labelled with their botanical names .
They are membranous, ovate, 4–5 mm (0.16–0.20 in) long, and 5-veined. The palea have 2-veined, ciliated keels while the fertile lemma is keelless, lanceolate, with an acute apex and ciliated margins. The lemma is 4.5–5 mm (0.18–0.20 in) long with 7–9 veins. The flowers are fleshy, oblong, truncate, with two lodicules and three anthers.
Ptilidium ciliare is a liverwort with the common names ciliated fringewort [2] and northern naugehyde liverwort. It is widespread in Canada , Alaska , the northeastern United States , Greenland , Iceland , and northern Europe occasionally as far south as northern Italy .
The function of these flowers is to specialize, within a group of flowers that are perfect, in attracting pollinating insects to the inflorescence. Such flowers, called neutral or asexual , are usually arranged on the periphery of the inflorescence and can be observed, for example, in many species of the compositae family, such as the daisy ...