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Allisa [31]
3 years ago
9

The energy transformations are similar because they both involve transformations that

Biology
1 answer:
vova2212 [387]3 years ago
3 0
Result in mechanical energy I think
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Viruses cannot reproduce on their own and require a host organism to do it for them. This is one reason viruses are not consider
Hunter-Best [27]

Answer:

yes true cus

Explanation:

virus rely on others cell organism

4 0
3 years ago
How do organ systems work together to perform a life function? Be sure to include what organ systems were involved and what life
AleksandrR [38]
Circulatory system involves the heart organ, its function is to pump blood around the body.

If this helped Plzz mark as brainliest plzz
8 0
3 years ago
Which element is found in nucleic acids but not in proteins?
fenix001 [56]

Phosphorus is the element found in nucleic acids but not in proteins.

<h2>Further Explanation </h2><h3>Proteins  </h3>
  • Proteins are one of the major biomolecules that exists in nature.
  • They are made of amino acids which are the building blocks. Amino acids contain four different elements which include;
  1. Hydrogen  
  2. Oxygen  
  3. Nitrogen
  4. Carbon
  5. Some amino acid contains sulfur element.
<h3>Nucleic acids</h3>
  • Nucleic acids are one of the four major bio-molecules in nature. Nuclei acids is divided into two; RNA and DNA.
  • The building blocks of nucleic acids are Nucleotide bases which are made by a nitrogenous base, a sugar and a phosphate group.
<h3>DNA  </h3>
  • DNA is a nuclei acid that is responsible for carrying genetic information in living organisms.
  • It is through DNA that genetic information is passed from one organism to another through the process of DNA replication.
  • Additionally, it carries the information that is used to make proteins which performs various functions in living cells.
  • Each Nucleotide in DNA contains a nitrogenous base, a deoxyribose sugar, and a phosphate group.
  • DNA molecules are made up of nitrogenous bases; Adenine, Guanine, Cytosine and Thymine.
<h3>RNA </h3>
  • Ribonucleic acid (RNA) is a type of nucleic acid, a molecule that plays a major role in the flow of information from the DNA to the proteins. For a gene to be expressed information has to be passed through the RNA.
  • Each nucleotide in RNA contains a nitrogenous base, a ribose sugar, and a phosphate group.
  • Nitrogenous bases in RNA includes; Adenine, Guanine, Cytosine and uracil. Thymine in DNA is replaced with Uracil.

Keywords: DNA, RNA, Nitrogenous bases  

<h3>Learn more about:  </h3>
  • Nucleic acid: brainly.com/question/2416343
  • RNA structure: brainly.com/question/2416343
  • DNA structure: brainly.com/question/2416343

Level: High school

Subject; Biology

Topic; Nucleic acids

Sub-topic: RNA and DNA structure

6 0
4 years ago
Read 2 more answers
In vertebrate animals, spermatogenesis and oogenesis differ in that ________. In vertebrate animals, spermatogenesis and oogenes
sp2606 [1]

Answer:

the division of cytoplasm is unequal in oogenesis, whereas it is equal in spermatogenesis

Explanation:

Spermatogenesis includes meiosis in primary spermatocytes. These are the diploid cells and completion of meiosis in one primary spermatocyte forms four haploid spermatids. The process of cytokinesis at the end of meiosis-I and meiosis-II equally divides cytoplasm among the daughter cells. Therefore, all the cells produced have an equal amount of cytoplasm.

On the other hand, oogenesis includes unequal cytokinesis by the end of meiosis-I and meiosis-II. It produces a larger secondary oocyte and a relatively smaller first polar body by the end of meiosis-I. Similarly, the mature egg cell is also larger than the second polar body. This occurs so that the zygote can have enough cytoplasm to enter mitosis.

5 0
4 years ago
You are a plant physiologist who is studying the alternation of generations in ferns
mart [117]
Pokoleniem dominującym u paprotników jest sporofit, czyli pokolenie bezpłciowe. Paprotniki są typowymi roślinami lądowymi, choć istnieją wśród nich gatunki, które wtórnie przystosowały się do wodnego trybu życia. Preferują miejsca wilgotne i zacienione. Są składnikiem różnych typów zbiorowisk roślinnych, głownie leśnych, ale też łąkowych i torfowiskowych. Są to głównie rośliny zielne, formy drzewiaste spotykamy jedynie w strefie tropikalnej. Mogą one osiągać nawet 7m wysokości. Należą do organowców, ponieważ można u nich wyróżnić organy zaopatrzone w wiązkę przewodzącą. Tymi organami są korzeń, łodyga i liście. Przystosowanie do lądowego trybu życia przejawia się w obecności takich tkanek jak epiderma, czyli skórka, tkanki przewodzącej, miękiszowej oraz wzmacniającej.

Pokoleniem dominującym u paproci jest sporofit. Pokolenie bezpłciowe rozmnaża się za pośrednictwem zarodników, czyli spor. Powstają one w zarodniach, zwanych inaczej sporangiami. Spory powstają z komórek macierzystych spor, w wyniku mejozy, są, więc haploidalne. Zarodnie często tworzą skupiska zwane kupkami, lub sorusami. Zarodnik kiełkuje w gametofit, zwany też przedroślem. W przemianie pokoleń paproci, gametofit jest pokoleniem ustępującym. Jest to najczęściej drobna, plechowata roślinka. Pozbawiona jest tkanki przewodzącej oraz korzeni. Do podłoża przytwierdza się za pomocą chwytników, zwanych, ryzoidami. Przedrośle ma najczęściej sercowaty kształt. Po jego spodniej stronie znajdują się rodnie, czyli archegonia, produkujące komórki jajowe oraz plemnie, czyli anterydia, produkujące plemniki. Plemniki zaopatrzone są w wici. Do procesu zapłodnienia niezbędna jest obecność wody. Plemniki przepływają w kierunku szyjki rodni i dokonują zapłodnienia. W wyniku zapłodnienia powstaje diploidalna zygota. Z zygoty, dzięki podziałom mitotycznym rozwija się sporofit. Początkowo jest on uzależniony od gametofitu, ale jak tylko wykształci pierwsze liście i zacznie przeprowadzać fotosyntezę usamodzielnia się. Przedrośle zaś obumiera.
6 0
4 years ago
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