1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yulyashka [42]
3 years ago
8

Why is something put in protista kingdom and not one of the other three

Biology
1 answer:
Y_Kistochka [10]3 years ago
8 0
BECAUSE THE KING WANT THE OTHER THREE OKAY?!?!?!
You might be interested in
What organization certifies products based upon their biodynamic production techniques
Rasek [7]

Answer:

Demeter International

Explanation:

Demeter International is the primary certification agency for farms and gardens using the methods. In the United States, bio-dynamic farming dates from 1926.-

5 0
3 years ago
A science researcher has developed a computer model of the process of DNA replication in a eukaryotic cell. The model includes t
wel

Answer:  Identify the promoter and the stop signal (terminator).

Explanation:

DNA is a molecule that contains the genetic information in all living things. This information is used for the synthesis of proteins that make up the body and carry out vital functions of the organism.

The DNA molecule consists of two strands that wind around each other to form a double helix structure, where each strand has a central part formed by sugars (deoxyribose in the case of DNA) and phosphate groups. The four basic components of DNA are nucleotides: adenine (A), thymine (T), guanine (G) and cytosine (C). The nucleotides are joined together (A to T and G to C) by chemical bonds and form base pairs that connect the two strands of DNA. Depending on the sequence of nucleotides (which have different bases), different proteins are synthesized.

<u>DNA replication consists of synthesizing another identical DNA molecule, using enzymes called polymerases, which are molecules specifically dedicated only to copy DNA. Transcription, on the other hand, is the process by which a copy of messenger RNA (mRNA) is generated from the sequence of a gene in the DNA. </u>This RNA molecule leaves the cell nucleus and enters the cytoplasm, where it directs protein synthesis (a polymer made up of many amino acids).

<u>Protein synthesis, or translation, involves translating the sequence of an mRNA molecule into an amino acid sequence during protein synthesis.</u> The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding sequence of amino acids it encodes. To begin translation, a start codon (set of 3 bases) must first be identified, which is usually AUG that also codes for the amino acid methionine. Then, the codons that follow are read and the corresponding amino acids are added according to the genetic code. The transfer RNA (tRNA) is complementary to the anticodon at specific codons in the messenger RNA and carries the amino acid coding for the codon. In addition, ribosomal RNA (rRNA) is an RNA that is part of ribosomes and is essential for protein synthesis in all living things. rRNAs form the framework of ribosomes and associate with specific proteins to form ribosomal pre-subunits. To finish the translation, a termination codon has to be read, which can be UGA, UAG or UAA.

To revise the model to show transcription to form mRNA, the research should identify the promoter and the stop signal. The promoter is a DNA sequence required to turn a gene on or off. The transcription process starts at the promoter which is usually located near the beginning of a gene and has a binding site for the enzyme that is used to make a messenger RNA (mRNA) molecule. The enzyme RNA polymerase will keep doing the transcription until it reaches a sequence of DNA that is signal which indicates it should stop. This process is called termination, and it happens once the enzyme reaches this sequence, called terminator.

8 0
3 years ago
Lead poisoning can cause extensive organ/system damage, including: a. Respiratory failure, circulatory system collapse, and skin
adell [148]

Answer:

The correct answer will be option-C

Explanation:

Lead is a metal found in the Earth's crust which through human practices like using it in paints and other products cause lead poisoning in humans due to accumulation of lead in the body.

Lead poisoning can affect the child above 6 years and adults and prove harmful as its increased concentration can cause severe health problems common of which are the development of anaemia due to large consumption, brain damage, reduced mental growth and severe stomach ache.

Thus, Option-C is the correct answer.

4 0
3 years ago
Using similar fossils to compare the ages of different sections of rock is what kind of geologic dating?
Blababa [14]
I’m pretty sure it’s B. Relative saying
5 0
2 years ago
What major factors affected earth's changing climates?
Flura [38]
I just had this answer but it hasn't been graded. I put 1. Meteor impacts, 2. volcanic gases and 5. Milankovitch cycles. I didn't put earthquakes because I wouldn't think it would affect the climate changing since they just affect ground movement.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Diffusion occurs because of the ________________________ of molecules.
    12·1 answer
  • Which of the following observations BEST demonstrates water’s special property of cohesion?
    5·1 answer
  • Which of the following is NOT a mechanism to prevent oxygen from entering the environment of nitrogenase? Group of answer choice
    12·1 answer
  • Which of the following statements about enzymes is true? ANSWER Enzymes speed up the rate of the reaction without changing the Δ
    8·1 answer
  • A photon of ultraviolet light hits double-stranded dna and creates a covalent cross-link between adjacent thymines in the same s
    12·1 answer
  • In fermentation, which step of cellular respiration is being accomplished?
    7·1 answer
  • Select all that apply.
    10·2 answers
  • The photo shows metal pipes that are meant to carry water. The pipes are
    6·2 answers
  • ¿Qué es y a qué se dedican las ciencias naturales?
    14·2 answers
  • What factors will effect how much gravity<br> accelerates a falling object?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!