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Rufina [12.5K]
3 years ago
10

Which of the following best describes the excretory system of a flatworm for liquid waste?

Biology
1 answer:
astraxan [27]3 years ago
4 0
The answer is highly branched. hope I helped :)
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Biological classifications have changed over the years. What is probably NOT a reason for these changes?
katrin2010 [14]

Scientists change the names of taxonomic groups to match the current nomenclature is probably NOT a reason for these changes.

Scientists change the names of taxonomic groups to match current nomenclature.

<u>Explanation:</u>

There are various main reasons why taxonomists from time to time require or choose, to modify the name of an organism such as a plant. Initially, the naming of plants is treated by a set of laws ( the International Code of Botanical Nomenclature ) which sets out how to accurately name plants and how to solve cases where two or more names have been used for one species.

It seldom happens that applying the rules requires us to change a name. For example, if a species named by one botanist turns out to have been before legitimately named by an elder botanist.

6 0
3 years ago
Which element of the scientific process includes the greatest amount of
Stels [109]

Answer:

A living being or organism is a complex set of organizational material, in which molecular communication systems intervene that relate it internally and with the environment in an exchange of matter and energy in an orderly manner, having the ability to perform the basic functions of life that are nutrition, relationship and reproduction, in such a way that living beings work by themselves without losing their structural level until their death.

Explanation:

The matter that composes living beings is formed in 95% by four elements (bioelements) that are carbon, hydrogen, oxygen and nitrogen, from which biomolecules are formed: 3 4

Organic biomolecules or immediate principles: carbohydrates, lipids, proteins and nucleic acids.

Inorganic biomolecules: water, mineral salts and gases.

These molecules are constantly repeated in all living beings, so the origin of life comes from a common ancestor, as it would be very unlikely that two living beings with the same organic molecules have independently appeared.5 6 Stromatolites have been found 3700 million years old, 7 so that life could have arisen on Earth 4100-3800 million years ago.1 8 9

All living things are made up of cells. Inside these are carried out the sequences of chemical reactions, catalyzed by enzymes, necessary for life.

The science that studies living things is biology.

7 0
3 years ago
Name three benefits of keeping plants at home.
Gemiola [76]
Improving your mood
Lowering stress and anxiety
Keeping you company
3 0
3 years ago
Your aunt has medullary thyroid cancer and is part of a large, randomized study of a new drug for treatment. what is she enrolle
trapecia [35]

The aunt with the medullary thyroid cancer has enrolled in a study which is testing the effects of a new drug treatment for the cancer. Such study is known as emergent research. In this type of research, the data is collected over new analysis procedures. Then, based on these data, the course of the study can be improved.

Hence, the answer is 'emergent research'.

4 0
3 years ago
Are angiosperms vascular or nonvascular?
ddd [48]
Hi!

Angiosperms are also known as flowering plants, and they are vascular. This means that they possess vascular tissue which will transfer nutrients and water.

Hopefully, this helps! =)
4 0
3 years ago
Read 2 more answers
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