Answer: There are six kingdoms: Archaebacteria, Eubacteria, Protista, Fungi, Plantae and Animalia. Organisms are placed in a specific kingdom based upon a variety of factors, including cell wall structure. As the outermost layer of some cells, the cell wall helps maintain cellular shape and chemical equilibrium.
Answer:
Antibiotic resistance occurs when bacteria do some variation in their genome that allows bacteria to eliminate the effect of antibacterial drugs. Irregular or excessive antibiotics use is the main cause of generating antibiotic resistance bacteria.
So antibiotics should be taken only on the prescription of doctors and a complete course of antibiotics should be done to eliminate all the bacteria so that no bacteria is left to generate antibiotic-resistant bacteria.
Antibiotics should be avoided in viral infection as antibiotic does not kill viruses as it is only beneficial in bacterial infection.
Answer:
A. Fossil record
Explanation :
A fossil can be defined as any preserved element (e.g., bones, exoskeletons, shells, animal imprints) which can be used to demonstrate the existence of organisms from past geological periods. The totality of fossils accumulated in a particular area is referred to as the fossil record. The fossil record is very useful in geology and paleontology because the information provided by the fossils helps to place geological events and species in their corresponding geologic eras and periods.
Answer:
same atmospheric pressure?
1 and 2
2 and 3
2 and 4
When forests have been cut down, new native trees can be planted