Answer:
The ovule turns into a seed after fertilisation has taken place
Answer:
Some bacteria due to their structures and physiology are inherently resistant to some antibiotics. This could be due to lacking transport mechanism or lacking receptor sites. Bacterium develop resistance mechanisms by using instructions provided by their DNA. Resistance genes are often found in plasmids which are small pieces of DNA that carry genetic instructions from one germ to another. Meaning that some bacteria can share their DNA and cam make other germs become resistant.
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Answer:
B
Explanation:
Using a Punnett Square, you find that the outcomes are AB, AB, aB, and aB. There are only two unique genotypes here, so the answer is 2.
ANSWER: A. Exercise is important for the body to function properly.
Exercise deliver adequate amounts of oxygen and remove waste from body tissues by regulating nervous, respiratory, circulatory and hormonal systems in the body. During exercise, body tissues and other metabolic processes in the body requires oxygen.Low levels of oxygen and higher levels of carbon dioxides are mainly detected by sympathetic division of the autonomic nervous system which control the physical activity of the body by increasing heart rate, blood pressure and respiration as a result of this there is an increase in the amount of blood pumped per minute by the heart and oxygenated body gets distributed to the tissues. This also involves release of glucose by the liver as an energy reservoir to control the level of blood glucose pancreas secrete insulin hormone , thyroid gland is also stimulated in response to increase heart rate.
