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lesya692 [45]
3 years ago
15

Student argues that being separated geographically is the only way for speciation to occur. Why is he wrong?

Biology
2 answers:
solniwko [45]3 years ago
6 0

Answer:

its B

Explanation:

Ne4ueva [31]3 years ago
5 0

Answer:

its b

Explanation:

edgenuity 2020

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True / False. Biologists classify specific forms of traits as good or bad. For example, long tails in cats could be classified a
k0ka [10]

Answer: False

Explanation:

Some organisms have an advantage with some traits, but they could be a disadvantage in other situations.

4 0
3 years ago
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Distinguish Natural and human made resources<br>​
miskamm [114]

Answer:

natutal resources are those which is not made by anyone

human made resources are those made by human or artifical things

6 0
3 years ago
Describe how carbon skeletons may vary, and explain how this variation contributes to the diversity and complexity of organic mo
Alecsey [184]

Carbon skeletons may vary in length, shape, number and location of double bonds and other elements covalently bonded to available sites.

A carbon atom contains four valence electrons thus, exhibiting a strong tendency to make covalent bonds with other atoms so as to complete its octet. Covalent bonds join carbon atoms together in long chains that create the skeletal framework for organic molecules.

A carbon atom could be linked to as many as four additional carbon atoms in an organic compound. Carbon atoms can also quickly form double bonds (where four electrons are shared among two atoms) and triple bonds (where six electrons are shared).

This variation in carbon skeletons contributes to the diversity and complexity of organic molecules.

To learn more about covalent bonds here

brainly.com/question/10777799

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4 0
2 years ago
Evidence that cytoskeletal elements have ancient origins comes from the: sequence similarities of cytoskeletal elements when com
Gnesinka [82]

Answer:

All of these choices are correct.

Explanation:

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

Generally, cells have the ability to independently replicate themselves. In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles in all living organisms such as trees, birds, and bacteria include; nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, vesicles, cytoskeleton, etc.

Cytoskeleton refers to a structure consisting of filaments and tubules which help to maintain internal organization and support the shape of the cells. It comprises of three (3) main filaments and these includes: actin filaments, intermediate filaments and microtubules.

Generally, there are numerous evidence that cytoskeletal elements have ancient origins and they include all of the aforementioned facts.

3 0
3 years ago
What is meant by the following statement? The cell membrane is semipermeable. A. The membrane allows all polar molecules into th
Gennadij [26K]

I believe the correct answer would be B.  Semipermeable means that it allows certain substances to pass through, and certain other ones to not pass through.  So given all of your options, I would say that B makes the most sense.  Hope this helped!

-TTL

7 0
3 years ago
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