Answer:
The answer is B
First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst.
Explanation:
Catalysts - BAMS Cohort 6 Quizlet
Gametes with two heterozygous copies of a chromosome may result from nondisjunction in either meiotic division.
<h3>What three types of nondisjunction are there?</h3>
Nondisjunction can take one of three different forms: failing to separate a homologous pair of chromosomes during meiosis I; failing to separate sister chromatids during meiosis II; or failing to separate sister chromatids during mitosis.
<h3>How can you tell whether nondisjunction takes place in meiosis 1 or 2?</h3>
- Nondisjunction, which can lead to an aberrant amount of chromosome-bearing gametes, can happen during meiosis I and meiosis II.
- The primary distinction between nondisjunction in meiosis 1 and 2 is that whereas sister chromatids fail to separate in meiosis II, homologous chromosomes fail to separate during meiosis 1.
<h3>What are mitotic and meiotic divisions?</h3>
- Mitosis and meiosis are the two distinct processes of cell division.
- When people talk about "cell division," they typically mean mitosis, which is the process of creating new cells for the body.
- The cell division process known as meiosis is what produces egg and sperm cells. A vital process for life is mitosis.
learn more about Nondisjunction during meiosis here
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Correct answer: C). Evolution by natural selection, Galapagos finches
Charles Darwin gave the theory of natural selection in the year 1835 when he visits Galapagos Islands.
There he found several species of finches are adapted to different environmental niches. They have a different shape of the beak, food source they eat and the way they captured the food.
He observes that species vary from island to island, and based on these observations he gave the theory of natural selection.
Planning, environmental impact analysis, civil or structure engineering
All of this extra carbon needs to go somewhere. So far, land plants and the ocean have taken up about 55 percent of the extra carbon people have put into the atmosphere while about 45 percent has stayed in the atmosphere. Eventually, the land and oceans will take up most of the extra carbon dioxide, but as much as 20 percent may remain in the atmosphere for many thousands of years.
The changes in the carbon cycle impact each reservoir. Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger