I'm having some trouble on these questions and I was wondering if I could have some help/be pointed in the right direction.
1. Which of the following about Protists is FALSE?
a) They are prokaryotes
b) The animal-like protists are the protozoans
c) The photosynthetic protists are the algae
d) Many protists can cause human diseases
&:
2. The protists diatoms:
a) Are unicellular photosynthetic organisms classified as golden algae
b) Are an important past of phytoplankton, providing food for ocean-dwelling animals
c) Die and leave behind delicate silica shells, mined from ocean deposits because it is useful in tooth and metal polishes
d) All of the above.
I'm lost on the first one but I think the answer to the second one is D.
Help?
Since this is not my area of expertise, I searched Google under the key words "protists diatoms" to get these possible sources:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Protists.html
http://mclibrary.nhmccd.edu/taxonomy/protista.html
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http://www.reef.edu.au/asp_pages/secb.asp?FormNo=7
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In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.
Sure, I can help you with these questions.
1. Which of the following about Protists is FALSE?
a) They are prokaryotes
b) The animal-like protists are the protozoans
c) The photosynthetic protists are the algae
d) Many protists can cause human diseases
To determine which option is false, we need to understand what protists are. Protists are a diverse group of eukaryotic microorganisms that are not classified as plants, animals, or fungi. They can be both single-celled or multi-celled organisms.
Now let's analyze the options:
a) They are prokaryotes - This statement is false. Protists are eukaryotes, not prokaryotes which lack a nucleus.
b) The animal-like protists are the protozoans - This statement is true. Protozoans are a type of animal-like protists.
c) The photosynthetic protists are the algae - This statement is true. Algae are a type of photosynthetic protists.
d) Many protists can cause human diseases - This statement is true. There are several protists that can cause diseases in humans, such as the malaria parasite.
Based on the analysis, the false statement is option a) They are prokaryotes.
Now let's move on to the second question.
2. The protists diatoms:
a) Are unicellular photosynthetic organisms classified as golden algae
b) Are an important part of phytoplankton, providing food for ocean-dwelling animals
c) Die and leave behind delicate silica shells, mined from ocean deposits because it is useful in tooth and metal polishes
d) All of the above.
To determine the correct option, let's analyze each statement:
a) Are unicellular photosynthetic organisms classified as golden algae - This statement is incorrect. Diatoms are unicellular photosynthetic organisms, but they are classified as diatoms, not golden algae.
b) Are an important part of phytoplankton, providing food for ocean-dwelling animals - This statement is correct. Diatoms are a major component of phytoplankton and serve as a food source for many marine animals.
c) Die and leave behind delicate silica shells, mined from ocean deposits because it is useful in tooth and metal polishes - This statement is correct. Diatoms have intricate silica shells called frustules that can accumulate in ocean sediments. These shells are mined and used for various purposes, including toothpaste and metal polishes.
d) All of the above - This statement is incorrect because option a) is false.
Based on the analysis, the correct option is b) Are an important part of phytoplankton, providing food for ocean-dwelling animals.
I hope this explanation helps you understand the answers to the questions. Let me know if you have any further questions!
For question 1, the statement that is FALSE about Protists is:
a) They are prokaryotes
Protists are actually eukaryotes, not prokaryotes. Prokaryotes are organisms like bacteria and archaea, while protists are a diverse group of eukaryotic microorganisms.
For question 2, the correct answer is indeed:
d) All of the above
Diatoms are unicellular photosynthetic organisms that are classified as golden algae. They are an important part of phytoplankton, providing food for ocean-dwelling animals. They also die and leave behind delicate silica shells, which are sometimes mined from ocean deposits for uses in products like tooth and metal polishes.
I hope this clears up your confusion! Let me know if you have any more questions.