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Andrej [43]
2 years ago
5

How is the plasma membrane best described?

Biology
1 answer:
fgiga [73]2 years ago
6 0

Answer:

С

a phospholipid bilayer with embedded and surface proteins surrounding the cell

Explanation:

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Necesito ayuda <br> No entiendo esto
irina [24]

Explanation:

Maby go through the lesson by your self  cuz im just a middle schooler

6 0
3 years ago
Some fossil snakes have remnants of hip bones and legs even though these animals had no legs. These remnant structures are best
Nina [5.8K]

Some fossil snakes have remnants of hip bones and legs even though these animals had no legs. These remnant structures are best described as:<u> vestigial structures</u>.

Vestigial structures are organic structures that do not appear to fulfill any important biological function in the organism that possesses them.

  • These structures are preserved as an inheritance of the evolutionary process, because at some point in the history of evolution an ancestor of the current species had that structure.

  • These types of structures, which can be bones, organs, structures in the skin or any other part of the body, no longer offer any meaningful function for the body.

  • The presence of vestigial structures in animals is considered proof that evolution and natural selection exists.

Therefore, we can conclude that some fossil snakes have remnants of hip bones and legs even though these animals had no legs. These remnant structures are best described as vestigial structures.

Learn more here: brainly.com/question/3217893

4 0
2 years ago
I don't know what this is I need help
Bas_tet [7]

to be honest me neither dude

4 0
2 years ago
What purpose would the sand serve?
mihalych1998 [28]

Sand is a granular material composed of finely divided rockand mineral particles. It is defined by size, being finer than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass.[1]

The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastalsettings is silica (silicon dioxide, or SiO2), usually in the form of quartz. The second most common type of sand is calcium carbonate, for example, aragonite, which has mostly been created, over the past half billion years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean.

Sand is a non-renewable resource over human timescales, and sand suitable for making concrete is in high demand.[2] Desert sand, although plentiful, is not suitable for concrete, and 50 billion tons of beach sand and fossil sand is needed each year for construction.

make a brainliest and follow me

5 0
3 years ago
In a population of 1000 individuals, 200 new individuals were born and 100 individuals died over the course of 1 year. Which equ
BigorU [14]

Answer:

C

Explanation:

0.20-0.10=0.10

because the population was decreased

6 0
3 years ago
Read 2 more answers
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