Answer:
The activity that does not represent a beneficial contribution made by biologists is to improve the durability of non-stick coatings (option C).
Explanation:
The development and improvement of non-stick coatings does not correspond to an activity within the field of biology. Anti-stick coatings, such as Teflon, are products developed through industrial activity.
Biologists' activity is focused on living organisms and their interaction with the surrounding environment. Improving arable soils and food quality, as well as increasing life expectancy are activities that fall within the field of study of biology and its related disciplines.
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Answer:
Rough endoplasmic reticulum extends from the nucleus to the cell membrane and holds ribosome at its surface.
Explanation:
Endoplasmic reticulum is of 2 types rough endoplasmic reticulum and smooth endoplasmic reticulum.
Rough endoplasmic reticulum is named so because it contain ribosome on its surface as a result rough endoplasmic reticulum play a significant role during translation or protein biosynthesis.
Rough endoplasmic reticulum extends from the nucleus that"s why most of the proteins of rough endoplasmic reticulum is accessed by the nucleus and if any proteins of RER or rough endoplasmic reticulum is not properly folded or misfolded then specific signals are send from nucleus for the correct folding of proteins of RER.
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Humans conduct internal fertilisation.
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Answer:
The organelles in an animal cell are as follows:
cell membrane, nucleus, nucleolus, nuclear membrane, cytosol, smooth endoplasmic reticulum, rough endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, centrosome, cytoskeleton, vacuoles, vesicles, and lysosomes.
Explanation:
An animal cell is a typical example of an eukaryotic cell i.e a cell that contains a membrane-bound nucleus. In the cell are certain structures that performs specific functions in the cell called ORGANELLES. The organelles, according to this question, are found suspended or cushioned in the cytoplasm of the animal cell.
A list of the organelles in the cytoplasm (part of the cell that excludes the nucleus) of an animal cell are as follows:
- cell membrane
- nucleus
- nucleolus
- nuclear membrane
- cytosol
- smooth endoplasmic reticulum
- rough endoplasmic reticulum
- Golgi apparatus
- ribosomes
- mitochondria
- centrosome
- cytoskeleton
- vacuoles
- vesicles
- lysosomes
