Answer:
True
Explanation:
Which statement describes how chemical formulas, such as H2O, represent compounds? They show the types of molecules that make up an atom. They show the elements that make up a compound. They show the three-dimensional shape of a molecule. They show the types of bonds that exist between elements.
Answer:
They show the elements that make up a compound
Explanation:
Compound consist of molecules that are identical, this molecules are made up of atoms of two or more elements.
An element is identified based on the atomic property of the element.
Water as a compound is composed of 2 Hydrogen atom to 1 oxygen atom and the molecule is H2O.
Water is composed of molecules hence, they are called molecular compound.
Chemical equation of water is showing elements that it is made up of is
H+ + OH- --- H2O .
Answer:
B
Explanation: eng
The Venn diagram below shows similarities and differences between binary fission and mitosis. What is wrong with the diagram?
A)Mitosis forms four identical daughter cells.
B)Mitosis does not form membrane-bound nuclel.
C)Binary fission is not used by eukaryotes.
D)Binary fission is not a simple process.
Answer:
C
Explanation:
Binary fission is not used by eukaryotes. It is used by prokaryotes.
In the Venn diagram, the thing which is wrong with the diagram is Binary fission is not used by the eukaryotes. Thus, the correct option is C.
What is Binary fission?Binary fission is a type of asexual reproduction which involves the formation of new organisms which are similar to the parents. This process occurs by a separation of the body into two new bodies or organisms.
In the process of binary fission, an organism duplicates its genetic material that is deoxyribonucleic acid (DNA), and then divides into two parts through cytokinesis, with each new organism receiving one copy of the DNA. This process occurs in prokaryotes and eukaryotes.
Therefore, the correct option is C.
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Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They last only a few minutes.
c. They may be partial or total eclipses.
d. They are rare
Answer:
A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned. Such alignment coincides with a new moon (indicating the Moon is closest to the ecliptic plane.[1] In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses, only part of the Sun is obscured.
Explanation:
What are some of the adaptations
used by predators to capture prey?
A. Some predators have large flat teeth used to
grind seeds and other plant material.
B. Many predators have a keen sense of smell
and good hearing.
C. Many predators are large and easily frighten
prey.
Increased capacity of the phosphagen system with speed (anaerobic power) training results from
(Check all that apply)
More myoglobin content of muscle
Greater mitochondrial power
Greater activities of the enzymes of the phosphagen system
More CP and ATP in muscle
Answer: Greater mitochondrial power
Greater activities of the enzymes of the phosphagen system
More CP and ATP in muscle
Explanation:
During high intensity exercises the large amount of muscle energy is required. This creates a high demand of ATP. The phosphagen system is the quickest method to resynthesize ATP. The creatine phosphate in the absence of oxygen provides phosphate to produce ATP. This provides greater mitochondrial power, in the rest the CP and ATP remain stored in the muscles. The enzymatic activity enhances with the phosphagen system.
What tool is used to track inherited traits between parents and offspring? Allelic pair Family tree Pedigree chart Punnett square
Answer:
pedigree chart
Explanation:
A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next
Answer:
The answer would be C) Pedigree Chart
Explanation:
Do you do FLVS? And this answer is right
Given the following information, which is the best description of the data?
Range—5, from 12 to 17
Mode—14
Median—14.5
Mean—15
The data is around 13.
The data is around 12.
The data is around 15.
The data is around 17.
Answer:
Its d
Explanation:
What is a key difference between the phosphorus cycle and the carbon and nitrogen cycles? Phosphorus is present in both living and non-living things. Plants absorb phosphorus from the soil. Significant amounts of phosphorus are not found in the atmosphere. Weathering and erosion release phosphorus.
Taste molecules are unique because different molecules trigger _______ in the nose and mouth
Answer:
sensation
Explanation:
sensation provides the taste to the brain
Click on the link below to see the primate family tree diagram. Which of the
following statements is true?
Primate Family Tree Diagram
A. Orangutans evolved from lesser apes and Old World monkeys.
B. Gorillas evolved from orangutans.
C. Orangutans evolved from an ancestor they share with gorillas.
D. Gorillas are more closely related to lesser apes than to
chimpanzees.
Option A Orangutans evolved from lesser apes and Old World monkeys.
Are orangutans friendly?Orangutans are generally non-aggressive toward humans and each other. Many individuals reintroduced into the wild after having been in managed care are aggressive towards humans. Male-male competition for mates and territory has been observed between adults.
Do orangutans ever eat meat?Most of their diet consists of fruit and leaves gathered from rainforest trees. They also eat bark, insects, and, on rare occasions, meat.
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Suppose a new bacterial species is discovered that is spherical in shape, survives drought by forming a thick outer wall, and cannot survive without oxygen. Using vocabulary terms from this lesson, describe this species to a scientific audience.
Answer: This bacterial species is in the shape of a cocci because it is spherical in shape, it forms an endospore during droughts to survive, and is an obligate aerobe because it cannot survive without oxygen.
Explanation: I hope this is right or helps, plz mark brainliest(:
In one to three sentences, describe what happens during the carbon fixation stage of the Calvin cycle
Answer:
Carbon dioxide (CO2) combines with a five-carbon compound
3-phosphoglycerate (PGA) is formed.
Explanation:
Answer:
Carbon dioxide (CO2) combines with a five-carbon compound
3-phosphoglycerate (PGA) is formed.
Explanation:
how could technology resulting from scientific research reduce the impact of human activities on the environment
Answer:
Technology made specifically to stop something is more effective because i is tailored speciffically to a certain problem, if you want to stop using a power plant toxic to the environment you can use solar panels, if you want to stop the radiation from microwaves you can study how the waves are given off and make a technological improvement to stop it. If you make a small improvement it can change the course of the world just look at cell phones or even indoor pluming.
Explanation:
What is the source of the ATP and NADPH
A. The dark reactions
B. The hydrogen ion pump
C. The light reactions
D. The Krebs cycle
Answer:
The answer is (C) The light reaction
Answer:
D. The Krebs cycle
Explanation:
it's the kreb cycle that produces ATP and NADPH including glycolysis.
hope it helps .
What disease is caused by this plasmodium which is transmitted through the bite of female mosquito? 2 points CHOLERA B. DENGUE C. MALARIA D. SLEEPING SICKNESS
Answer:
C. Malaria
Explanation:
Malaria is caused by Plasmodium parasites. The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called "malaria vectors."
How do geologists use satellites?
Answer:
Satellite imagery and aerial photography have proven to be important tools in support of mineral exploration projects. They can be used in a variety of ways. Firstly they provide geologists and field crews the location of tracks, roads, fences and inhabited areas.
Explanation:
Answer:
Mining and Satellite Imagery. Satellite imagery and aerial photography have proven to be important tools in support of mineral exploration projects. They can be used in a variety of ways. Firstly they provide geologists and field crews the location of tracks, roads, fences and inhabited areas.
Most students have trouble with understand that HCl and Bile are not enzymes. They do allow for structural changes of the substrate, but they do not change the chemical breakdown of the substrate (breaking bonds. Describe your experience: 1. How comfortable do you feel about the statement that was just made? 2. What is a catalyst? Do you think that HCl and Bile are catalysts? Explain. 3. Using your own example, make an analogy explaining, to an 8-year-old, the concept of how a chemical will cause mechanical breakdown of a substance but not a chemical breakdown.
Most students have trouble with understand that HCl and Bile are not enzymes. They do allow for structural changes of the substrate, but they do not change chemically breakdown the substate (breaking bonds)
Bile salt is a fat emulsifier.It has an hydrophobic end which points towards lipids and hydrophilic ends towards water.With this arrangement, the structure of fatty acid is modified in such a way that the lipid is well distributed and scattered in water.However, the chemical bonds in the lipids are not affected by the bile salts, because, bile did not breakdown the chemical bonds in lipids to form new compound, its only changes the food physical structure for easy digestion.
Describe your experience:
How comfortable do you feel about the statement that was just made?
What is a catalyst? Do you think that HCl and Bile are catalysts? Explain.
Using your own example, make an analogy explaining, to an 8-year-old, the concept of how a chemical will cause mechanical breakdown of a substance but not a chemical breakdown
Answer:
1.The statement means that,HCL and bile, which change the pH nature of the digesting food, and emulsify the digesting food respectively, only allow for structural changes in these food materials,but do not break or make new bonds between the components of the food substances.Therefore they do not formed new substances, but rather modified the food substances, no chemical reaction occurs but their effects only aids the process of digestion.
When a substances increases or speed up the rate of organic chemical reactions, but do not undergo any permanent changes in it chemical structure, in the course of catalysis, the substance is called a catalyst.
During digestion, HCL activates precursor pepsinogen to enzyme pepsin , which aids protein digestion in the stomach. HCL is not a catalyst,But acts to aid the action of an enzyme , by activating its precursor, for digestion to take place,The acid does not form a new compound.
Bile is an emulsifier , which aids the digestion of lipids by forming to tiny globules for easy digestion. It does not form a new product, but rather modified the existing product for easy digestion.
Explanation:
Prokaryotic cells have different internal structures than eukaryotic cells. Which of the following is/are found in eukaryotic cells but not prokaryotic cells?
1.nucleoid region
2. Cytoplasm
3. Membrane
4. Ribosomes
Answer:
Membrane-bound organelles
Explanation:
Prokaryotic cells are simpler than eukaryotic cells. They have some similarities, however. They both have a nucleoid region, genetic material, ribosomes, a plasma membrane, and cytoplasm. Prokaryotic cells don't have membrane-bound organelles.
What methods would the body use to provide a person with energy throughout a race?
Which of the following molecules are used by heterotrophs as primary sources of free energy?
A. Proteins, carbohydrates, and nucleic acids
B. Carbohydrates, lipids, and proteins
C. Nucleic acids, lipids, and carbohydrates
D. Lipids, nucleic acids, and proteins
Answer:
B.
Explanation:
the carbohydrates come before the lipids because free energy source that come through proteins
HELP! QUICK
A. 2: Electron transport chain
B. 3: Oxidative phosphorylation
C. 1: Glycolysis
D. 4: Krebs cycle
Answer:
A
Explanation:
it's the electron transport chain
Which expression is equivalent to sin Bcsc Bsec B for all values of B for which sin Bcsc Bsec B is defined?
Select the correct answer below:
cot Btan B
cot Bsec B
sec B
Recall that csc, which stands for cosecant, is defined as follows
csc(x) = 1/( sin(x) )
it is the reciprocal of the sine function. Multiplying csc(B) and sin(B) together yields 1. This result multiplies with the only thing left, sec(B), to get the final answer.
A disadvantage of solar energy is
A. that the clouds can block the sunlight
B. it is not available at night
C. that the clouds can block the sunlight and it is not available at night
D. the sun is to hot the absorbed in solar panels
Answer:
the sun is hot the absorbed in solar panels
Explanation:
Answer:
The answer is D.
Explanation:
Solar power is pollution free and causes no greenhouse gases to be emitted after installation. Reduced dependence on foreign oil and fossil fuels. Renewable clean power that is available every day of the year, even cloudy days produce some power. Return on investment unlike paying for utility bills.
Using your knowledge of fungi, which of the following might prevent the mold from growing? A. Buy a different type of orange. B. Keep the oranges in the refrigerator. C. Put the oranges in a warm place. D. Put the oranges in a damp place. Which of the following diseases is caused by a bacteria? A. Chicken pox B.Tuberculosis C.. Dengue D. Polio Partial sterilization of a product such as milk at a high temperature is known as A. Pasteurization B. Filtration C. Pickling D. Refrigeration _______ are the agents that act as carriers of a pathogen and spread diseases. A. Vectors B. Microbes C. Parasites D. DNA
Answer:
Mold grows best in warm, humid environments. So, I think B is the correct answer. Answers C and D would actually encourage the growth of mold.
I know that B (Tuberculosis) is spread by bacteria.
Pasteurization is the process where milk is heated up to kill certain pathogens.
Finally, vectors are the agents that carry pathogens from one person to another and spread disease.
Choose the correct description for each phase of mitosis
Answer:
Explanation:
C, it has yet to split apart so the spindle fibers are yet to exist and they haven’t split apart yet
Why is a flask is wider on the bottom than on the top
Answer:
the contents inside will change temperature quicker because of the greater surface area exposed to the heat or cold and with a smaller top you can have and easier time containing the contents inside as well
Evolution is a theory because
A. we are not sure if it is true
B.there's not enough evidence yet
C.scientific theories are supported by a large amount of evidence
D.none of these is true
Polygenic traits are controlled by how many genes?
O 1
O2
O many
none
Match the characteristics of the biome to the type of rainforest
___ weather year around is warm and humid
____ received about 200 inches of rain a year
___ trees are mostly coniferous
___ greatest variety of
uniquely adapted organism
Answer
-tropical
-temperate
-temperate
-tropical
Tropical biome year around is warm and humid. Temperate biome received about 200 inches of rain a year, temperate biome are mostly coniferous, and tropical biome have greatest variety of uniquely adapted organism.
What are the topical and temperate biomes?The tropical rainforest biome mainly shows four main characteristics which include very high annual rainfall, high average temperatures, nutrient-poor soil, and the high levels of biodiversity that is species richness.
The temperate forest biome is one of the world's major habitats or biomes. Temperate forests are generally characterized as regions with the high levels of precipitation, humidity, and a variety of deciduous trees. In this biome, decreasing temperatures and shortened daylight hours in the fall mean decreased photosynthesis for the plants.
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The essence of
is
that everything works
together to create an
ecosystem where all
organisms can survive and
thrive.
A. interdependence
B. evolution
C. ecology