Answer:
In gymnosperms the female reproductive part is the cone and the pollen is the male reproductive part. Pine trees and other gymnosperms produce two types of cones. Other gymnosperms and pine trees produce two kinds of cones. The larger female cone, which is the seed cone and the male cone called the pollen cone.
The cones of gymnosperms, flowers of angiosperms, and the reproductive fronds of ferns all have a fundamental reproductive unit that is a leaflike organ bearing sporangia.
<span>Angioplasty is the technique of mechanically widening narrowed or obstructed arteries. This is the process of putting a balloon in your arteries to widen it for blood flow. So Angioplasty would not be the best way to treat an aneurysm because an aneurysm is a bubble full of blood. Angioplasty would not work.</span>
Answer:
- <u>Conventional plastics-</u>
"Plastics are typically organic polymers of high molecular mass, but they often contain other substances."
"Oil-based polymers is currently used in packaging applications. These are virtually all non-biodegradable, and some are difficult to recycle or reuse due to being complex composites having varying levels of contamination.
- <u>Biodegradable plastics</u>-
"They are largely manufactured from renewable natural resources, to produce biodegradable materials with similar functionality to that of oil-based polymers."
Explanation:
<u>Complex Issue-</u>
- Diversity of biodegradable materials and their varying properties makes it difficult to make simple, generic assessments such as biodegradable products are all ‘good’ or petrochemical-based products are all ‘bad’.
- Biodegradable packaging materials are most suitable for single-use disposable applications where the post-consumer waste can be locally composted.
In modern terminology, mendal's heredity "factors" are called
phenotype
