They either frow on other organisms and get there food or they eat it feom a dead animal
Answer:
Individuals who are heterozygous for co-dominant traits show in their phenotype both traits, without mixing.
Explanation:
Codominance is a type of inheritance that does not follow the rules of Mendelian inheritance, characterized by the absence of recessive traits and two different alleles for a character that behave as dominant.
Heterozygous individuals can be observed in codominance that show two different characteristics in their phenotype, without mixing, such as cattle with spotted skin or two colored flowers.
Answer:
B)attach specifically to host cell receptors
Explanation:
Viral spikes are one of the envelope proteins. These proteins are coded for by viral genes. Viral spikes project from the envelope surface. They are also called peplomers. One of the functions of these spikes is to specifically interact with the receptors present on the surface of the host cell to mediate the attachment of the virus to the host cell surface. Viral spikes and the host cell surface receptors are complementary to allow their specific binding. For example, the spike protein of the SARS-coronavirus bind specifically to the human host cell receptor ACE2.
Listeriosis
The symptoms of this disease include diarrhea, nausea, fever, and muscle aches. Pregnant women can result in stillbirth. Persons with low immunity such as infants, people with immunodeficiency disease and elderly can develop meningitis and bacterium as a result of the illness.
The disease is caused by the bacterium Listeria monocytogenes. To kill the bacteria which is mainly spread through contaminated food, processed food like soft cheese and unpasteurized milk, ensure food is cooked safely and properly.
