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ziro4ka [17]
3 years ago
13

What is the function of the periwinkle leaf?​

Biology
1 answer:
Vesna [10]3 years ago
8 0

Answer:

periwinkle is used for “brain health” (increasing blood circulation in the brain, supporting brain metabolism, increasing mental productivity of leef

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What entities are made up of proteins? Please answer ASAP thank u very much!
snow_lady [41]
Well everything is made of complex proteins. There isn't one single organism just comprised of proteins. For example keratin is a protein that is made when RNA passes through a ribosome. Now this protein may be used in different functions, one is to strengthen hair/nails. To simplify: anything living that is eukaryotic. (multi_cellular organisms bigger than bacteria and viruses.)
6 0
3 years ago
When using a hammer, a person makes use only of the bones and muscles in his/her arm
Debora [2.8K]

Answer:

false

Explanation:

in all living organisms, it consist of  systems that shows a  complemetary nature of structure and function at all organizational  levels . these levels are cells, organs, tissues, organ systems, whole organisms,  and ecosystems. every part plays a role in every function in the body.

8 0
3 years ago
In writing On the Origin of Species, Darwin synthesized ideas from other publications, as well as observations he made while voy
algol [13]

Answer:

Principles of Geology

Explanation:

J. Henslow gifted Darwin the first volume of Principles of Geology, written by Charles Lyell. The book explains about the old age of the earth. Accordingly, the slow rate of several geological processes suggests that the earth is very old.

Darwin read the book as the ship was crossing the Atlantic and learned about geological processes occurring over the millions of years. For example, he learned that the earth's surface was not formed by some catastrophic event.

In his book, Lyell explained the slow and gradual geological processes like erosion gave rise to the vast landscapes present on the earth's surface.

Darwin compared the time taken by geological processes to form the earth's surface and reasoned if these millions of years were enough to support the evolution of species.

6 0
3 years ago
Which of the following does not represent a common outcome following introduction of foreign DNA into a bacterial cell?Choose on
AleksandrR [38]

Answer:

The correct option is A, since if the DNA enters in a circular form it is called a plasmid, and the plasmids upon entering the bacteria self-replicate outside the genetic structure, which gives the bacteria better survival qualities.

Explanation:

Plasmids are generally circular extrachromosomal DNA molecules that replicate and transmit independently of chromosomal DNA, and are normally present in bacteria, archaea, and sometimes in eukaryotic organisms such as yeast. Its size varies from 3 to 10 kb. The number of plasmids can vary, depending on their type, from a single copy to a few hundred per cell. Plasmid vectors allow cloning of exogenous DNA ligands of up to 4 kb since a larger size than this makes cloning in these vectors difficult. The term plasmid was first introduced by the American molecular biologist Joshua Lederberg in 1952. Plasmids can only coexist as one or more copies in each bacterium, due to cell division they can be lost in one of the secreted bacteria.

5 0
3 years ago
If we had a Gold necklace, and we melted it down and reshaped it to a gold coin
LuckyWell [14K]

Answer:

D

Explanation:

D) Volume mass and density

volume mass and density do not change because when the necklace is melted down it doesn't change the amount or density of the necklace.

3 0
3 years ago
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