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Are parasites usually smaller than the host?
Yes
Do you protozoan that are parasites never have more than one host?
Protozoan parasites can have one or multiple hosts throughout their life cycle. Some species, like Plasmodium (which causes malaria), require different hosts, including mosquitoes and humans, to complete their development. Other protozoan parasites may only need a single host to thrive and reproduce. Therefore, it is not accurate to say that parasitic protozoa never have more than one host.
True or false protozoans that are parasites never have more than one host?
False. Many protozoan parasites can have more than one host during their life cycle. These hosts can include intermediate hosts, where the parasite develops, and definitive hosts, where it reproduces. Examples include the malaria-causing Plasmodium species, which involves both humans and mosquitoes in its life cycle.
Why does a predator kill its prey but a parasite rarely kill its host?
Usually, parasites are much smaller than the host is, whereas predators could be either small or larger than the prey. Parasites have a very high reproduction rate but the predators reproduce slowly.
Why would it be bad for the parasites if it killed the plant or animal it lives on?
Because it would deprive itself of its food-source. Parasites thrive by feeding off a 'host' - rather than catching their own food. If they kill off the host - they either have to find another host - or die !
Why would it be bad for the parasites if it killed the plants or animals it lives on?
Because it would deprive itself of its food-source. Parasites thrive by feeding off a 'host' - rather than catching their own food. If they kill off the host - they either have to find another host - or die !
Are lice symbiotic?
No, lice are considered parasites rather than symbiotic organisms. They feed on blood from their host and can cause irritation and discomfort.
What are the differences between a virus and a parasite?
Viruses are infectious agents that require a host cell to replicate, while parasites are organisms that live in or on another organism and derive nutrients at the host's expense. Viruses are much smaller and simpler than parasites, and they replicate by hijacking the host cell's machinery. Parasites can be multicellular organisms like worms or single-celled organisms like protozoa.
Drugs that rid the body of eukaryotic parasites often have more side effects and are harder on the body than drugs that act on bacterial parasites Why?
Eukaryotic parasites are more similar to human cells than bacterial parasites, making it harder to target them specifically without affecting human cells. This can lead to more side effects from the drugs used to target eukaryotic parasites. Additionally, eukaryotic parasites are often larger and more complex than bacterial parasites, which can make it more challenging to develop drugs that selectively target them.
How are viruses similar to parasites?
Viruses are similar to parasites because both require a host to survive and both destroy the cells in which they multiply (cause harm to the host).
What is the parasitism?
the ecological-evolutionary viewpoint. Parasite is a perfected predator, a predator that has evolved to extract resources from its host without killing it.Parasites are much smaller than their hosts. The characteristics of parasites depends on the type of parasite they are. For instance, endoparasites are much more modified and many have lost sensory or even digestive systems in favor of developing larger reproductive organs and producing lots of descendants. Ectoparasites are usually less modified with respect to their free-living relatives, but have structures and behaviors related to finding the host and remaining attached to it. Obligatory parasites are also more specialized than facultative parasites, and some species are specific parasites of a single host, while others are capable of parasitizing several species. All these different strategies involve diverse modifications, acquisitions and adaptations. Some parasites may become symbionts, by becoming gradually less damaging to their hosts and more specifically related with them.
What is the parasitism parasite?
the ecological-evolutionary viewpoint. Parasite is a perfected predator, a predator that has evolved to extract resources from its host without killing it.Parasites are much smaller than their hosts. The characteristics of parasites depends on the type of parasite they are. For instance, endoparasites are much more modified and many have lost sensory or even digestive systems in favor of developing larger reproductive organs and producing lots of descendants. Ectoparasites are usually less modified with respect to their free-living relatives, but have structures and behaviors related to finding the host and remaining attached to it. Obligatory parasites are also more specialized than facultative parasites, and some species are specific parasites of a single host, while others are capable of parasitizing several species. All these different strategies involve diverse modifications, acquisitions and adaptations. Some parasites may become symbionts, by becoming gradually less damaging to their hosts and more specifically related with them.
