Answer:
Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.
<h2>Answer:</h2>
The priority list will be like this
- Fruit Trees
- Birds
- Monkeys
- Tigers
<h2>Explanation:</h2>
In an ecosystem, producers are the first level of the food chain. And we know that plants are producers because they produce their own food. So, fruit trees will be at the beginning of the food chain. After producers comes the primary consumers. Primary consumers are animals that feed on producers. Both birds and monkeys feed on fruit trees, so they are the next in line after fruit trees. Finally, secondary consumers eat primary consumers. As tigers eat animals i.e monkeys etc so they are secondary consumers, and thus they are last on the food chain list.
A) 5
Half-life is the time it will take for a quantity to reduce to half its initial value. In this case, uranium will undergo radioactive decay, and after 700 mil years, 5 of the 10 uranium atoms will have decayed.
