The effects<span> of </span>tobacco smoke<span> on the </span>respiratory system<span> include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.</span>
food
fiber for clothing product like cotton
jute
Answer:
An index fossil is also known as guide fossils or indicator fossil. They are fossils used to determine and identify geologic periods.
The main characteristics of an index fossil include :
1.It must be distinctive.
2.It must be widespread.
3. It must be abundant
4. It must be limited in geologic time.
Due to trends and studies of most fossil-bearing rocks being formed in the ocean, the major index fossils are mostly marine animal or plant organisms.
I dont see any options. Biotic factors are living factors, abiotic are non-living.
Here are some examples of biotic factors in a beach ecosystem.
Fish, crabs, birds, turtles.
-Steel jelly
Answer:
A pedigree can be described as a diagram which illustrates a family tree. The pedigree shows the parents and their offsprings across many generations and particular characteristics or traits which are present in individuals of the family tree.
The pedigrees are the easiest ways which genetic counselors use to determine the risk of various genetic conditions. The genetic counselors can determine what will be the chances of the upcoming offsprings to carry a genetic disorder if the disorder runs in the pedigree.