Answer:
Fluoride levels in the bone would be higher in individuals with osteosarcomas.
Explanation:
Fluoride levels will be higher in bone of the individuals with osteosarcomas.
What are the uses of fluoride ?Fluoride is a group of compounds which is a combination of fluorine and other elements, these compounds are present in water, plants, rocks, air, and soil.
Some of fluoride compounds are sodium fluoride, stannous fluoride, and fluoride mono-fluorophosphate.
Once fluorides are absorbed inside the body, it travels into the blood through the digestive tract, tend to collect in areas with high calcium like bones and teeth.
Majorly fluorides are used in drinking water, beverages, food, and dental products, mostly fluoro-silicic acid, sodium fluorosilicate, and sodium fluoride forms are added to water.
Some of the fluoridated water used to prevent tooth decay, and avoid dental fluorosis, a cosmetic condition.
Average number of decayed, missing, or filled teeth in children reduced by application of this water and cavities in adults.
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plsssss helpppp asap
Answer:
cant see the pic
Explanation:
TRUE OR FALSE:
The phylogenetic tree of Hominidae includes everything from orangutans to modern
humans and all members are typically known for their high levels of intelligence and
opposable thumbs.
C C
Answer:
True
Explanation:
Answer: True
Explanation:
How is mRNA produced during the process of DNA transcription
Answer
During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink). The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.
Explanation:
The final stage of the cell cycle, during which the cytoplasm divides, is called * Telophase Mitosis O O Cytokinesis Prophase Interphase Metaphase Anaphase
The correct answer is cytokinesis it is the phase where the cytoplasm of the parent cell is separated into two .For example trough cleavage in animal cells.
Why immobilized enzymes are widely used in industry? Explain, please
Answer:
just go with your instincts
Explain how the structures of plant tissues and organs are directly related to their roles in physiological processes.
Answer:
How the structures of plant tissues and organs are directly related to their roles in physiological processes.
o Plant organs are limited to roots, stems, leaves, flowers, fruit and cones.
o Physiological processes are limited to photosynthesis, cellular respiration,
transpiration, and reproduction.
o Plant tissues are limited to meristematic, ground, dermal and vascular tissues.
o Plant structures are limited to cambium, guard cells, phloem, seed, stomata and
xylem
Explanation: Hope this helps have a safe and happy new year
Roots, stalks, leaves, flowers, fruit, and cones are the only organs found in plants. Photosynthesis, metabolic processes, transpiration, and fertilization are the only physiological activities.
Plant and plant tissues:Photosynthesis and the movement of mineral-containing water ions are critical processes in the development of healthy plants. Plants have three primary structures or organs:
LeavesStemsRootsThey're made up of groupings of specialized tissues with structures that are tailored to the functions they do.
Adaptations are distinctive features that help plants survive in their specific settings. Plants rely on their specialized structures to provide their fundamental requirements, protect themselves from predators, and aid reproduction.
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Question 4 (1 point)
If non-disjunction occurred during meiosis II, would any of the resulting cells end up
being haploid?
NO or
YES
Answer:
Yes
Explanation:
why are plant cells undergoing cell division do not have a vacuole? Please answer this question within 1-2 hour/s
Answer:
because they can
Explanation:
Which is the most likely outcome of an increased climate temperature?
a growth of ice caps
b decreased flooding
c lowering ocean levels
d unstable weather problems
Answer:
Unstable Weather patters
Explanation:
Pretty Sure
Please Help!!! Which two body systems are most affected when a person is participating in a long jump?
A. endocrine and digestive
B. endocrine and muscular
C. skeletal and digestive
D. skeletal and muscular
The two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).
The muscular system is composed of three different types of muscles: smooth muscle, cardiac muscle and skeletal muscle.The skeletal muscles are muscles responsible for controlling voluntary movements (e.g., jump) and they are attached to the skeleton by a type of connective tissue known as tendon.The skeletal system is composed of all bones of the body and they are responsible to provide support and protection to the internal organs.In conclusion, the two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).
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Large reefs are thousands of years old. True or false identify if it is false
Answer:
True
Explanation:
y e s .
A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?
the ability to maintain homeostasis
the ability to maintain homeostasis
the ability to grow and develop
the ability to grow and develop
the ability to adapt and evolve
the ability to adapt and evolve
the ability to reproduce
Answer:
Sweating helps the human body maintain homeostasis by cooling the body when it starts to overheat so the internal temperature is kept more or less the same. When sweat evaporates from the skin, it uses up some of the excess heat energy on the skin, thus helping to keep the body cool.
According to cell theory, all living things are made of cells, and living cells come only from other living cells. Gene theory states that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.
Sample answer: The concentration of oxygen in the atmosphere is maintained at 21 percent by a balance between two opposing processes: removal of oxygen from the atmosphere by most living things and addition of oxygen to the atmosphere by living things such as plants.
Sample answer: The human ability to sweat is an adaptation that helps maintain homeostasis in a hot environment by removing heat from the body when it evaporates. Like other adaptations, the ability to maintain homeostasis by sweating evolved by natural selection sometime in our evolutionary past.
a. Gene theory
b. Homeostasis
B
An adaptation is a trait that helps a living thing survive and reproduce in a given environment. Sample example. The chameleon’s ability to change color to match their background is an adaptation.
False
False
Humans began life as a single cell because we develop from a fertilized egg cell.
Gene theory states that genes are passed down from parents to their offspring. Genes determine the characteristics or traits of an organism. If these traits are particularly beneficial or adaptive, natural selection will cause the organisms with beneficial traits to produce more offspring compared to those without the beneficial traits. This results in a change in traits over time, which is called evolution.
No. Evolution is defined as a change in the characteristics of living things over time. Evolution through natural selection causes differences in the amount of offspring produced. Having offspring (or not) is, by definition, more than one generation.
Sample answer. I think that when ancestors of chameleons could change their color to match their background, they were less likely to be detected and killed by predators than those that couldn’t change their color. Therefore, the individuals that had the color matching ability were more likely to survive and reproduce than those that didn’t. This is an example of natural selection. Over time, this led to the population evolving the color changing ability, as those that didn’t have the ability died out.
Explanation:
i hope this helped you
Which layer ground is made up of solid rock?
mantle
bedrock
subsoil
topsoil
Answer:
Bed rock .!!!!!!!!!!!!
how many atp are produced by cellular respiration of one molecule of glucose?
Answer:
38 ATP.
Explanation:
Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
what are the functions of pseudopodia in amoeba?
Answer:
Pseudopods are used for motility and ingestion. They are often found in amoebas.
Explanation:
WILL GIVE BRAINLIEST!!!!!
_?_ are found in all metabolically active cells and are involved primarily in transporting materials within, into, and out of cells.
Vesicles
Ribosomes
Lysosomes
Vacuoles
Answer:
Vesicles
Explanation:
what is cellurar respiration?
Answer:cellular respiration is a process by which cells use oxygen to produce energy from food.
This happens in the mitochondria
The digestion of ___ takes place in the stomach by the actions of enzymes operating at low pH. This digestion continues in the small intestine and the large molecules are broken down into ___.
Answer:
food minerals
Which organelle plays an important role during mitosis, helping to move chromosomes around the cell
a
Oь
Ос
Od
vacuoles
Golgi bodies
chloroplasts
centrioles
Answer:
Explanation:
Duplicated centrioles are responsible for moving chromosomes during mitosis.
They are involved in the formation and organization of spindle during cell division (mitotic phase) and also in the process of cytokinesis.
It is composed of nine triplets of microtubules that are the proteins of cytoskeleton.
Spindle fibres contain multiple proteins that help in the binding with centromere during cell cycle.
They originate from the poles of the cell by the organelle called centriole, and attached to the kinetochore of the chromatid.
Many spindle fibres are just connected between two poles, as they are not attached to the chromatids.
These fibres orient the chromosomes into pairs, to the metaphase plate into a line during metaphase.
During anaphase they are shortened, which pulls the chromosomes to the opposite poles separated from the pairs.
At the end in telophase, where nuclear membrane becomes visible it disappears.
In this way the spindle fibers help in the separation of chromosomes into two new daughter cells. This process is also known as the distribution of heredity or genetic information between new cells.
Glucose is what type of molecule A: Multi- complex B: Protein C: Sugar D: Lipid
Answer:
Within all lifeforms on Earth, from the tiniest bacterium to the giant sperm whale, there are four major classes of organic macromolecules that are always found and are essential to life. These are the carbohydrates, lipids (or fats), proteins, and nucleic acids. All of the major macromolecule classes are similar, in that, they are large polymers that are assembled from small repeating monomer subunits. In Chapter 6, you were introduced to the polymers of life and their building block structures, as shown below in Figure 11.1. Recall that the monomer units for building the nucleic acids, DNA and RNA, are the nucleotide bases, whereas the monomers for proteins are amino acids, for carbohydrates are sugar residues, and for lipids are fatty acids or acetyl groups.
Explanation:
Which part of the carbon cycle occurs when plants, trees, or fossil fuels are burned?
A. Transpiration B. Oxidation C. Photosynthesis D. Combustion
Answer:
Combustion.
Explanation:
It's just as it sounds, combustion is the process of burning something. In the carbon cycle, combustion occurs whenever any organic living or non-living thing is burned in the proximity of oxygen, afterwards producing carbon dioxide.
Combustion is the part of the carbon cycle which occurs when plants, trees, or fossil fuels are burned. Thus, the correct option is D.
What is Combustion?Combustion or burning is a high-temperature exothermic redox chemical reaction which occurs between a fuel and an oxidant. The oxidant is usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. This is one of the major reasons of pollution.
Three main types of combustion include rapid combustion, spontaneous combustion, and explosive combustion.
Therefore, the correct option is D.
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Cells divide at different rates. Skin cells divide __________. Liver cells divide ____________. Bone marrow, stomach and intestine lining cells divide _____________.
a. never, continuously, sometimes
b. very often, sometimes, continuously
c. continuously, sometimes, never
d. sometimes, never, continuously
Question 2
What are the 2 key molecules that control and coordinate the cell cycle?
a. DNA and RNA
b. CDK and Cyclin
c. Cyclin and mitochondria
d. Apoptosis and CDK
Question 3
A cell dies and the cell next to it enters G1 phase. Which activity would happen next?
a. Chromosome duplication
b. Cell destruction
c. Cell growth
d. Chromosome separation
Question 4
At the end of G1 in Checkpoint 1, what 2 things are checked in order for the cell to proceed into the S phase1?
a. cell growth and DNA check
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 5
At the end of S phase in Checkpoint 2, what 2 things are checked in order for the cell to proceed into the G2 phase?
a. chromosome duplication and cell division
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 6
At the beginning of mitosis in Checkpoint 2, what is checked in order for the cell to proceed mitosis?
a
cell growth
b
cell division
c
chromosomes are attached to spindles
d
chromosome duplication
Question 7
What happens when the cell “supervisors” CDK and Cyclins do not work correctly?
a
The cell can become cancerous.
b
The cell is completley normal.
c
Damaged cells are destroyed.
d
The damage in the cell is repaired.
Question 8
Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase?
a
The DNA must be replicated.
b
The cell membrane must be expanded.
c
The cytoplasm must be separated.
d
The chromosomes must be joined.
Question 9
This final process of cellular division where the cytoplasm is divided into two cells is called
a
Cytokinesis
b
Meiosis
c
Mitosis
d
Interphase
Question 10
Which of the following activities occurs in between the two gap phases (G1 and G2)?
a
Replication of DNA
b
Growth of the cell
c
formation of mitotic spindle
d
breakdown of nuclear membrane
Question 11
If a dog (canis familiaris) has 78 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
a
78
b
39
c
26
d
156
Question 12
The stages of mitosis occur in which of the following orders?
a
A-P-M-T
b
T-A-M-P
c
P-M-A-T
d
M-T-P-A
Question 13
Before DNA can replicate the DNA molecule separates into two strands, which are then used to construct 2 identical strands of DNA. This process ensures that the
a
parent cells use little ATP
b
mitochondria are genetically identical to chloroplasts
c
cytoplasm is in equillibrium
d
daughter cells are genetically identical to parent cells
Question 14
Which of the following organelles organizes the movement of chromosomes during mitosis?
a
endoplasmic reticulum
b
lysosome
c
centriole
d
peroxisome
Question 15
G1 Phase, S Phase, and G2 Phase are all parts of -
a
Mitosis
b
Interphase
c
Cytokinesis
d
Telophase
Answer:
umm sorry umm i just forgot what was the answer
Explanation:
HELP ME PLEASE!! THIS IS A TEST!!! PLEASE!!!
Stuart is listing the changes to matter and energy that occur during the process of photosynthesis which of these examples should he include in his list?
A.) changes in chemical energy converts carbohydrates into smaller molecules
B.) changes in light energy convert chemical energy stored in carbohydrates
C.) changes that convert chemical energy into heat and light
D.) changes in nuclear energy converts hydrogen and oxygen into carbon
PLEASE AND THANK YOU!!!! HELP MEEE!!!
the answer would be C. None of the other answers choices have anything to do with photosynthesis
Disease in plants is a density dependent because?
Answer:
Disease can be density-dependent because organisms have to live close enough to one another for the disease to spread.
A cross section of a seed is shown.
Which is represented by the letter X?
embryo
seed coat
stored food
leaf
Answer:
Embryo
Explanation:
I took the text
Answer:
embryo
Explanation:
Write a paragraph that explains the increase and how technologies that have appeared over
the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.
Answer:
Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.
Explanation:
Please actually answer the question i need the answer, i'll give brainliest!!!!
A city is located in an area that has experienced 7.5-magnitude earthquakes in the past.
The city is considering building a new skyscraper.
Use the earthquake magnitude scale to predict the amount and type of damage residents should expect from future earthquakes of similar magnitude.
Then suggest a way to minimize the effects of future earthquakes on the skyscraper.
The advantage of having large vertebrae at the base of the vertebral column is having stability in terms of the center of gravity of the person
Answer:
what grade are u in?
Explanation:
In the graph below, which letter represents the activation energy of a catalyzed reaction and why?
Choose 1 answer:
(Choice A) Y; the activation energy is reduced in a catalyzed reaction
(Choice B) X; the activation energy is greater in a catalyzed reaction
(Choice C) X; the activation energy is greater in an uncatalyzed reaction
(Choice D) Y; the activation energy is greater in an uncatalyzed reaction
Report a problem
Answer: Choice C) X; the activation energy is greater in an uncatalyzed reaction
Explanation: I got this question on khan academy.
The option that represents the activation energy of a catalyzed reaction is C. X; the activation energy is greater in an uncatalyzed reaction.
Activation energy simply means the minimum amount of energy that should be provided for compounds that'll result in a chemical reaction.
It should be noted that the activation energy for uncatalyzed conversion to the products will be more than that of the catalyzed reaction. In this case, X; the activation energy is greater in an uncatalyzed reaction.
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The cell theory applies to all organisms, including the five shown below. Which of the following statements describes how these organisms are an example of the cell theory? A. The organisms have cells that lack a nucleus. B. The organisms are made of one or more cells. C. The cells of the organisms undergo photosynthesis. D. The cells of the organisms are identical to each other.
Answer:
Its B
Explanation:
ALl of the cells are made from cells so that is the answer hope this helps :)