DNA
plasma membrene
cytoplasm
Ribosomes
Answer:
d) A and B above.
Explanation:
Triacylglycerols are the simplest form of lipids comprised of fatty acids. Triacylglycerols are also called as fats or neutral fats. Each molecule of triacylglycerol is composed of three fatty acids bonded to the single glycerol molecule.
Each of the three fatty acids of triacylglycerol is bonded to glycerol in an ester linkage. The main function of triacylglycerols is to serve as energy storage form and provide insulation to eukaryotic cells.
Answer:
Explanation:
It takes 27.3 days for moon to make one revolution this is called sidereal month and it takes 29.5 days to complete a cycle of phase this is called synodic month. The synodic month is difference is because as the moon moves around earth, the earth is also moving round the sun. Hence, the moons needs to move farther away to make up the distance that was added as the earth also revolves in other to complete the cycle.
Answer: the control group was grown at a pH of 2
Explanation:
Seeds comprise a radicle, which descends and becomes the root system; the endosperm, containing stored food; an epicotyl, which develops into the stem and the seed coat that protects the seed. which are small food storage organs and plant embryos encased in a seed coat. These embryos require specific conditions in order to break their dormancy; seed dormancy is a temporary state in which plant development and growth are halted, until specific conditions required for germination to occur. Conditions required for seed germination:
- Light- some seeds require light to break their dormancy
- Oxygen- for respiration
- Water- protein hydration and enzyme activation; should be near to neutral pH
- Temperature- a specific range 20-30 °C which activates specific enzymes needed for growth
During the germination process, plants emerge from the seed and start growing. However, the delicate tissue structures can be damaged by low pH; this can occur due to acid rain, where the pH of the rainwater is lowered by the presence of pollutants.
Due to the presence of atmospheric carbon dioxide, normal rain’s pH is typically around 5.6, and in heavily polluted areas with other gases as pollutants, acid rain’s pH can range from 3-4. A highly acidic pH of 2 can denature enzymes required for germination and seed growth; apart from causing damage to the entire seed, there’s no expected growth at this pH range making it a suitable control.
Experimental controls give valuable information about the experiment’s conditions and validity; they are usually carried out in the same conditions as the other experiments, but the independent variable (pH) is usually changed.
Answer:
The correct answer is - primatology.
Explanation:
Primatology is the study or field of anthropology studies that include the human and nonhuman primates as well and their relationship with the humans. It is a very broad and diverse sub-branch of different branches of biology, anthropology, and other fields.
Some of the primatologists only include studying human development and compare to these primates such as monkeys and apes.
Thus, the correct answer is - primatology.
