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.
I am sorry, I am not good in this area but, I found a site that could help you: http://www.chemicalelements.com/elements/ca.html
I know I am not supposed to post links but, I found help
The correct answer is C. The separation of chromatids happens during Anaphase, which is represented by R in the diagram.
Plant types matched with their descriptions
- Hydrophytes - Aquatic plants
- Mesophytes - Plants with habitats that are neither too wet nor too dry
- Xerophytes - Plants with very dry habitats
Hydrophytes are aquatic plants that may be free floating, fully submerged or partly submerged (amphibious) in water. The vascular tissue of hydrophytes is very poorly developed. Examples of hydrophytes are Ottelia, Sagittaria and Utricularia.
Mesophytes are plants that live in habitats that have a moderate supply of water (neither too wet nor too dry. Mesophytes are usually large, fast growing, and have well developed roots and leaves. Examples of mesophytes are clover and maize (corn).
Xerophytes are plants that are able to thrive with very dry habitats where the available soil water is low. Examples of xerophytes are Acacia and Carthamus.
This is from another brainly answer it's the same questions but it should be the correct answer because it's a certified answer. Hope this helps!
Tuber is thick underground stem, such as potato for example. It usually has buds from which new plants could grow. So, the first part of Stacy's vegetable is definitely turbous stem. The other part must be root, because it has hairy structures. These hair-like structures have function in <span>the absorption of water and minerals from the soil.</span>