Answer:
The bear can digest fruits easily, but has difficulty digesting fats.
Explanation:
D) The basic unit of structure and function in all living things
Glucose is the nutrient that is absorbed in the small intestines reabsorbed by the kidney glucose is a sugar applied during the process of digestion of carbohydrates in the small intestines. it's the most important source of energy that we get.
Answer:
- Delivery of the sperm to the female gametophyte
- Protection of the male gametophyte
Explanation:
The pollen grain is a <u>microspore</u> present in angiosperms and gymnosperms, it contains the male gametophyte.
The pollen tube present in pollen grains and the way they are transported (by wind) allows these plants to require no water for reproduction.
In addition, the pollen grain has two very resistant walls (internal and external), composed mainly of cellulose, ensuring protection to the male gametophyte until it meets the female gamete.
C
This is natural selection organisms with useful traits live on and are able to reproduce