BIOLOGY HIGH SCHOOL

The marine flatworms (polycladids) are the smallest of the free-living flatworms sometimes reaching lengths of 15 centimeters true or false?

Answers

Answer 1
Answer: False!

The marine flatworms (polycladids) are the greatest of the free-living flatworms. Most of them are about 1 centimeter in length, but there are some species that can reach lengths of 15 centimeters. They belong to the Phylum Platyhelminthes or flat worms. A great number of species are parasites, but there are some species that are free-living and they belong to the group of Polycladids.

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32P can be used to make any nucleotide (A, C, G, or T) radioactive. Which of the following explains why this is true?

Plants have a cell wall made of cellulose. What is the function of the cell wall in plants? A) The cell wall controls division of the cell. B) The cell wall provides structure to the cell. C) The cell wall controls the functions of the cell. D) The cell wall manufactures proteins for the cell.

Answers

The main job of the cell wall made out of cellulose would be to provide structure to the cell - B. 

Having structure through the cellulose present in cell walls is essential for plants because their structure often also dictates their function. 

A the cell wall controls division of the cell

Unnatural occurrences can have the most significant impact on an ecosystem. True

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Answer: True

Explanation:

Unnatural occurences are those catastrophic events induced by humans which can exert drastic impact over the ecosystem. These may include deforestation, forest fire, intentional explosion, and others. This will result in loss of many species due to damage caused to the non-living physical environment.
If your question is true or false, my answer is True. 
Because any unnatural occurrences like building houses can change the ecosystem a lot. 
When we build a house we are destroying some animals house. 
I hope this is helpful
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What products are produced from the combustion of coal?

Answers

Answer:

fly ash, bottom ash, and flue-gas desulfurization gypsum

Explanation:

hope it helps

which statement best describes why genetic variation is beneficial to populations of organisms A. Individuals look different from one another. B . Only one parent is needed to produce offspring. C. Populations of the organism increases more rapidly. D. Species can better survive environmental changes.

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Answer:

Explanation:

Its D, species began having more beneficial adaptions to their environment causing them to live longer.

Answer:

It's D. Species can better survive environmental changes.

Whole animal cloning produces a new offspring that is identical to

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The animal it gave birth to 

1. Why are kids afraid of ghosts? 2. Should I feed the raccoons that visit my trash can? 3. How does mouse color affect mouse survival? 4. Does a mother duck love her babies? Which statement correctly identifies the scientific question and describes why the question is scientific? Question 1 refers to the supernatural. Question 2 reflects a moral or social value. Question 3 leads to a hypothesis that can be tested. Question 4 reflects a question that can't be observed.

Answers

Answer:

The correct answer is - statement - Question 3 leads to a hypothesis that can be tested.

Explanation:

A scientific question is a question that can be answered by logic and reasoning with the help of a hypothesis that can be tested and analyzed by the scientific experient and scientific method.

One can use testing and experimentation to answer the question, survivability of a mouse depend on the color of the mouse is questions based on scientific ideas.

So, supernatural, morality, opinions can not be the base of the scientific questions.

Answer: C

Question 3 leads to a hypothesis that can be tested.
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