Answer:
Explanation:
D
True or False: The endosymbiotic theory explains how prokaryotic cells could have evolved from eukaryotic cells.
Answer:
The endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once prokaryotic microbes. ... They eventually lost their cell wall and much of their DNA because they were not of benefit within the host cell. Mitochondria and chloroplasts cannot grow outside their host cell.
The endosymbiotic theory explains how eukaryotic cells could have evolved from the prokaryotic cells. The given statement is False. Eukaryotic organisms contain organelles which resemble prokaryotic cell.
What is Endosymbiotic theory?
According to the endosymbiotic theory, the first eukaryotic cells evolved from a symbiotic relationship between the prokaryotic cells. Smaller prokaryotic cells were engulfed by the larger prokaryotic cells which resulted into the formation of new types of cells which were known as Eukaryotic cells.
The eukaryotic cells contain some organelles which were similar to the prokaryotic cells. These organelles include mitochondria and chloroplast. These organelles contain their own genetic material in the form of circular DNA and are capable of independent existence.
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Please help!
What gas is slowly filling up the balloons?
The glasses are full of sugar and yeast.
Answer:
Carbon dioxide
why does the number of yeast cells decrease during fermentation??
Answer:Dough can still rise in cooler environments, but much more slowly. Amount of yeast; the more yeast the faster the fermentation. Too much can add an undesirable yeasty flavor.
Which of the following conclusions can be made from this experiment? Please answer as quickly as possible.
Answer:neither
Explanation: Because none of the CJ bacteria were green the DNA was not sent.
Neither Salmonella nor E. Coli send genes to CJ bacteria.
Salmonella is a type of bacteria that causes the disease of food poisoning. This bacteria is present in the intestine of both humans and animals and often spread through the feces.
E.coli is another type of bacteria that normally grow in the human intestine. Usually this bacteria is harmless, but some strains is responsible of causing diarrhea and pneumonia.
Cj bacteria is another type of bacteria that is commonly present in the poultry. This bacteria grow in the digestive tract of many birds. According to the given data, the hypothesis is correct, it is neither salmonella nor E.coli sends gene to cj bacteria so we can conclude that salmonella nor E. Coli send genes to the cj bacteria.
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please help!! i’ll mark brainliest. please and thanks lol.
Answer:
the answer is C
Explanation:
PleaSe help!!!! Asap
According to the information and image, the finches’ beak shape is an example of adaptation because the beaks need to be sharp to eat insects and need to be strong and wide to eat seeds
What molecule does plants use to absorb energy
Answer:
The chlorophyll molecule.
Explanation:
This is an important part of the photosynthesis process -- it can absorb energy from incoming light. This molecule absorbs all light except green light -- they primarily absorb red, blue, or yellow light. That's why a plant looks green to our eyes, because the color not absorbed by the plant is reflected to us.
Which of the following is not a negative consequence of using pesticides
A) can be harmful to other beneficial plants and insects
B) promotes resustance over time
C) leads to pollution
D) leads to better crop yield
Answer:
Something that is not a negative consequence of using pesticides is that it leads to better crop yield.
Explanation:
Pesticides are chemicals that are specially designed to protect the plants from pests, mostly from insects. Their usage has been constantly increasing around the globe, and they are the most used where there is commercial agriculture. Pesticides, unfortunately, lead to a lot of problems, mainly pollution and loss of biodiversity.
Something that is a positive from the usage of pesticides though is the fact that it leads to better crop yield. By protecting the plants from pests, the plants can grow without any problem, not spending energy for fighting the damage of the pests, and generally not being damaged. All of this leads to higher production of crops and better crop yields in general, and that is very useful in a world where there is more and more demand for food.
Answer:
d leads to better crop yield.
Explanation:
edg 2021
How do the steps of mitosis help cells divide?
Answer:
Mitosis is the process in which the cell divides.
Explanation:
In telephase and cytokinesis the cell completes mitosis and becomes two genetically identical cells. The cytoplasm splits and two new nucleus reform.
Homeostasis is the process of maintaining a cell's environment. This
includes the regulation of sodium ion (Na+) concentration within the
cytoplasm. If too much Na+ is inside a cell, how can the concentration be
changed?
A) More Na+ ions will be transported in through membrane protein channels
B) Excess Na+ ions will leave the cell via osmosis
C) More Na+ ions will enter the cell through the plasma membrane
D) Excess Na+ ions will be transported out though membrane protein channels
Homeostasis is the procedure of maintaining a cell's environment: Excess Na+ ions will be exhilarated out through membrane protein channels.
What is the Homeostasis process?
Homeostasis is especially crucial for the survival of organisms. It is often seen as an opposition to differences in the external environment. Similarly, homeostasis is a self-regulating process that controls internal variables required to sustain life.
The body retains homeostasis by controlling a host of variables running from body temperature, blood glucose levels to fluid balance, potassium blood pH, sodium, and calcium ion concentrations.
Therefore, The correct option is 'D'.
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What is the relationship between the TRIPLET CODE and the CODON ??
Answer:
each nucleotide triplet (called a codon) specifies a particular amino acid. Thus, a nucleotide sequence in the DNA specifies a protein provided that a messenger RNA molecule is produced from that DNA sequence. Each region of the DNA sequence specifying a protein in this way is called a gene.
What's a nostalgic 2000's show that u used to watch as a kid? (i used to be obsessed with Hannah Montana for some reason lol)
Answer:
victorious
Explanation:
Answer:
Wizards of Waverly Place
Explanation:
How do different processes of the
rock cycle change a rock? Which
processes will form an igneous,
sedimentary, and metamorphic
rock?
Answer:
Igneous rocks are formed from cooled magma, magma is formed from melted metamorphic rock, metamorphic rock is formed from either heated igneous rock or heated and pressurized sedimentary rock, sedimentary rock is formed from sediments throught compaction and cemenetaion and sediments are formed from weathered and eroded igneous or metarmorphic rocks
Explanation:
For more info look up rock cycles and hit images for a simple format
Answer:
Volcanic activity- Igneous, such as granite, basalt, or obsidian
Heat and pressure of already formed rock- Metamorphic, such as slate or marble
Layers of sediment, sand, and silt under pressure- Sedimentary- such as shale, limestone, or sandstone
Explanation:
It takes thousands to millions of years for these to form (except maybe for igneous rocks, because the magma or lava just has to cool).
Those were parts of the rock cycle that changes the rocks.
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True or talse: Color can be used to help indentify an unknow substance?
ASAPP PLEASE
Answer:
TRUE :)
Explanation:
Help me please !!!!!!!
Mitosis is a process by which
Answer:
Mitosis is the process by which a cell segregates its duplicated DNA, ultimately dividing its nucleus into two.
Explanation:
Question: Why do we see similar fossils on different continents of Earth?
Answer:
Because those animals werr everywhere
Explanation:
Which of the following demonstrates solubility?
A. Oil floating on water
B. Sugar dissolving in water
C. Heat from the stove heating a pot
D. Flattening something into a sheet
Answer:
Solubility is the ability of a solid, liquid, or gaseous chemical substance (referred to as the solute) to dissolve in solvent (usually a liquid) and form a solution. The solubility of a substance fundamentally depends on the solvent used, as well as temperature and pressure. Hope this helped! :))
Explanation:
Genetically modified (GM) crops are foods that have had their genomes modified, allowing humans to increase the production of certain crops. Farmer A purchases GM seeds that are immune to a specific herbicide. She plants these seeds in rows over seventeen acres. The following spring, Farmer A's neighbor, Farmer B, tells her that nearly a third of the plants in his crop fields have the same immunity.
Which of the following describes the most likely explanation for this occurrence?
Answer:
B-Farmer A's crops cross-pollinated with Farmer B's crops on the neighboring land.
Explanation:
Answer:
Farmer A's crops cross-pollinated with Farmer B's crops on the neighboring land.
Explanation:
Explain the structure of three types of muscle fibres.Also write the location where they are found in the body.
Answer:
ldmaomosl;msz
Explanation:
sxk a
Water soluble and fat soluble are types of:
Vitamins
Minerals
Fats
Carbohydrates
URGENT!!
which structures in plants and in humans normally carry amino acids
arteries? phloem? ureters?
Answer:
In the human arteries
In the plant phloem
Welcome dear
The amino acids are present in both animals and plants, and the plants get them through the phloem and the animals get them through the arteries. Arteries are blood vessels that transport digested foods to cells.
How are the macromolecules used by the cells?Macromolecules such as polysaccharides, starch, proteins, etc. are not directly used by individual cells, but they are broken down and used by both plant and animal cells. The animals eat macromolecules such as starch and protein, and all these are broken down into monomers by the digestive organs such as the stomach and the intestine and later absorbed into the blood vessels and distributed to the body cells. In plants, the amino acids are distributed by the phloem to different parts and later used for different processes.
Hence, the amino acids are present in both animals and plants, and the plants get them through the phloem and the animals get them through the arteries.
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A woman has an extra X chromosome. Explain how this happened using what you have learned in this lesson. Describe the error in gamete formation, identify the stage of meiosis where the error could occur, and explain the consequences of the error in meiosis
Answer:
can occur during meiosis I or meiosis II, in meiosis I homologous chromosomes fail to separate or in meiosis II the sister chromatids fail to separate
Explanation:
Answer:
Meiosis is the formation of gametes
One error in meiosis is nondisjunction.
Nondisjunction results in an abnormal number of chromosomes.
Nondisjunction in meiosis I result in 50% of gametes with an extra chromosome.
Explanation:
Why are the bronchi and bronchioles together called the conducting zone?
Answer:
Functionally, the respiratory system is separated into a conducting zone and respiratory zone. conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.
RNA and DNA are both examples of _____ made from nucleic acids.
A. Atoms
B. Molecules
C. Lipids
Answer:
Molecules
Explanation:
Is this right
Answer:
b. molecules
Explanation:
How many nucleotides are shown in the structure you just built?
Answer:
More than 5
Explanation:
Many common products, such as wooden furniture, paper, and books, are
made from trees. Which of the following is a likely consequence of humans
cutting down a forest in order to make use of the natural resources there?
A:destruction of animal habitats
B:increased acid rain
C:increase of light pollution in cities
D:decrease of chemical runoff into oceans
Answer:
A
Explanation:
a lot of animals live off of trees and carnivores may live off of those animals so it could cause a chain reaction.
Answer:
destruction of habitats
Explanation:
got it correct on study island good luck sorry if i was wrong for u
is Flower size is a structural adaptation?
Answer:
yes
Explanation:
Oxygen has an atomic number of 8. The n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen's valence is _____.
-2
-1
+2
+1
Answer:
The correct answer is -2
Oxygen has 6 valence electrons, which is 2 electrons short of a neutral charge, thus it is -2
can you help me with this?
From the diagram, label the following words on the diagram. write the shape and colour for the following terms.
A) Deoxyribose
B) phosphate
C) nitrogenous base
Answer:
A) Deoxyribose- the purple pentagon
B) phosphate - the blue circle
C) nitrogenous base - the blue rectangles in the middle that are connected
Explanation:
