Answer:
hi is normal for dogs to do that my grandpa said that if a dog eats grass is normal because they have sore stomach or colic
Answer: microorganisms that cause disease are referred to as pathogens, they include virus, bacteria, fungi, protozoa
Explanation:
A pathogen is an organism that causes disease.
Virus, example include: Adenovirus, Epstein Barr virus,mega virus, Stars coronary virus, hepatitis B virus,
Bacteria: bacillus anthracis, staphylococcus aureus, Chlamydia, Escherichia coli,compylobacter jejuni
Answer:
Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
only a small percentage of mutations cause genetic disorders—most have no impact on health or development. For example, some mutations alter a gene's DNA sequence but do not change the function of the protein made by the gene.
The main difference is that the active one is strong than the passive one
