Web4 The freshwater mussel, Margaritifera margaritifera, is a mollusc which lives in rivers and streams. When the mussel reproduces, gametes are released into the water and fertilisation takes place. The embryos, in the form of larvae, attach themselves to the gills of fish and develop there for a few months. The larvae then release themselves and grow in sand in … WebViruses, like bacteria, are microscopic and cause human diseases. But unlike bacteria, viruses are acellular particles (meaning they aren't made up of living cells like plants and animals are), consisting instead of a central core of either DNA or RNA surrounded by a coating of protein.. Viruses also lack the properties of living things: They have no energy …
Are viruses alive? New Scientist
WebAcellular tissues or organisms are those that are not made up of discrete cells or cannot split into cells, such as the hyphae of certain fungi. It refers to something that is organic and lacks cells. These particles, in fact, lack virtually most of the fundamental components that characterise life. Prions, viruses and certain biological ... WebCharacteristics of Voluntary Attention as Indicators of Mental Health Level cssc games 2021
The difference between prokaryotic and eukaryotic cells? Live Science
WebMost bacteria are, however, surrounded by a rigid cell wall made out of peptidoglycan, a polymer composed of linked carbohydrates and small proteins. The cell wall provides an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. Many bacteria also have an outermost layer of carbohydrates called the capsule. WebNov 28, 2024 · What are the Characteristics of Living Organisms? Cellular Organization. All living organisms have cellular organization. Living things have a level of organization that … WebDec 2, 2024 · All groups of living organisms share several key characteristics or functions: order, sensitivity or response to stimuli, reproduction, adaptation, growth and … cssc games