Need help with science homework! lol, thanks?

Number 1: Explain why covering and refrigerating food helps to reduce spoilage from moulds.





2: One arm of a sea star with part of the central disk attached can grow into a complete sea star. Sea stars are considered a nuisance by people who raise oysters. A sea star can attach iself to an oyster's shell, open it, and eat the contents. In the past, oyster farmers tried to destroy the sea stars by cutting them into pieces and throwing them back into the ocean. What do you think was the outcome of this action?





# 3: a. What is meristem?


b. What is the role of these cells in asexual reproduction of plants?


2.a. Explain and give an example of how plants can reproducefrom roots, stems, and leaves.


b. Why are the plants produced by these methods considered to be identical to the parent plant?





Thats it, lol. Thanks! :) if u take the time to help me, its hugely appreciated.

Need help with science homework! lol, thanks?
1. Ask yourself what are molds and what causes molds, and you'll have your answer.





2. The first sentence pretty much says it all, don't you think?





3. I don't know this one, you'll have to consult your textbook or try to do your homework yourself.
Reply:1) It really doesn't. Mold spores are deposited on the food before the wrap was placed and mold likes cold. It even rhymes.


2) Sea stars continue to eat oysters.


3) This is a trick question. Plants do not have meristems.








Now go get that a+
Reply:1. Covering food reduces the number of mold spores that the food is exposed to, while refrigerating food slows the growth of mold.





2. You're allowed a little room for thought here, but it seems that all the farmers did was create more sea stars.





3. Check the wikipedia article for sources on these answers.


a. A meristem is where the plant grows. These are usually found in roots and shoots.


b. Because plants can grow from these cells, these cells are used to start asexual plant reproduction.


2. look this one up yourself.


b. All the genetic material used to create the new plants was taken from one plant, and this material was not combined in any way with other genes. Thus, all the new plants have the same genetic material as the plant they were created from.
Reply:1. Mold is air born so if you cover the food it is less likely to contaminate.


2. If a sea star can grow out of one arm and the arms are thrown in the water, I can only conclude that mass reproduction occurred.


3.a. not sure about meristem. I can only assume that it has something to do with being able to reproduce asexually.


2a. If you cut a part of a pothos household plant and put it in water, it will grow roots and more leaves. b. Considered identical because it is the same plant.