Answer:
A
Explanation:
crossing-over can occur during meiosis I in:
a. prophase I.
b. metaphase I.
c. anaphase I.
d. telophase I.
Answer:
b. metaphase l.
Which three industries would be the most directly affected if regulations and laws regarding deforestation became stricter?
Answer: Timber industry, paper industry, furniture industry.
A study was conducted to evaluate the relationship between artificial sweeteners and bladder cancer. 3,000 cases and 3,000 controls were enrolled in the study. Among the cases, 1293 had used artificial sweeteners in the past, while 1707 had never used artificial sweeteners. Of the controls, 855 had used sweeteners and 2145 had not.
a. What is the exposure and what is the disease?
Calculate the correct measure and show your work.
How do we interpret this effect estimate?
Answer:
A. exposure - use of artificial sweeteners
disease - bladder cancer
In this research artificial sweeteners are used as the exposure that leads to bladder cancer disease.
B. Bladder cancer No bladder cancer
Artificial sweeteners 1293(a) 855(b)
No artificial sweeteners 1707(c) 2145(d)
Total 3000 3000
Cases -
- Risk factor (Artificial sweeteners) present (1293)
- Risk factor (Artificial sweeteners) absent (1707)
Controls
- Risk factor (Artificial sweeteners) present (855)
- Risk factor (Artificial sweeteners) absent (2145)
Odds ratio or strength of association between exposure and disease
OR= Cases with exposure/cases without exposure= a/c divided by b/d
So, the putting value ad/bc= 1293*2145/855*1707
= 1.9
OR would be 1.9
C. this interprets that there is a 90% increase in the chance of bladder cancer if exposed to artificial sweeteners or people with bladder cancer have a 1.90 times higher odds of using artificial sweeteners compared to controls
What is DNA (Deoxyribose Nucleic Acid)?
DNA ( Deoxyribose Nucleic Acid ) is a molecule.
and its where a bunch of atoms stuck together.
What part of the digestive system absorbs nutrients that our bodies need?
A. Mouth
B. small intestine
C. stomach
D. large intestine
Answer:
small intestine
.
is the correct answer
Answer:
B. small intestine
Explanation:
Small intestine absorbs the nutrients that our bodies need.
3. Ang
ay isang uri ng kuwentong bayan at panitikan
na nagsasalaysay ng mga pinagmulan ng mga bagay-bagay
sa daigdig
A. Horror
B. Alamat
C. Pantasya
D. Mga tula
Answer:
B. Alamat
Hindi masyadong magaling ang aking Pilipino, ngunit sana makatulong ito :)
Which is the best way to describe the biodiversity of an area?
Answer:
The best way to describe of biodiversity in a area is a grassland with a wide variety of organisms living on it.
Explanation:
Which of the following do all living things have in common?
O A. All living things are made up of at least one cell.
O B. All living things breathe oxygen.
O C. All living things are made up of many cells.
ОО
D. All living things eat other living things for energy
Answer:
C
Explanation:
all living things are made of up many cells
What gets trapped in the atmosphere by greenhouse gases?
sunlight
thermal energy
water vapor
methane gas
thermal energy gets trapped in atmosphere due to greenhouse gases
Que sucedería con la especie humana si debido a una futura mutación genética sus células no pudieran realizar los procesos de mitosis y meiosis
Answer:
la vida no podría continuar sin los procesos de división celular
Explanation:
La mitosis es el proceso de división celular mediante el cual se producen dos células idénticas a partir de una sola célula. Durante la mitosis la célula crece y duplica la cantidad de ADN, con lo cual exactamente el mismo contenido de información genética es trasmitido a las sucesivas células que el proceso de mitosis va a dar origen. Por otra parte, la meiosis es un proceso celular en el cual se producen dos divisiones nucleares y citoplasmáticas (meiosis I y meiosis II) las cuales son precedidas por una fase de replicación del ADN. En la especie humana, la mitosis da lugar a células diploides (2n) con dos set completos de cromosomas homólogos, mientras que la meiosis da lugar a cuatro células haploides (n) llamadas gametos (el gameto masculino es el espermatozoide y el gameto femenino es el óvulo) las cuales contienen la mitad del número cromosómico al de la célula de origen. En organismos eucariotas pluricelulares tales como la especie humana, la función de la mitosis es producir más células somáticas (soma: cuerpo) con idéntico material genético, mientras que la función de la meiosis es producir células aptas para el proceso de reproducción, es decir, células con la mitad del material genético que se fusionarán para generar una célula diploide o zigoto a partir del cual y mediante sucesivas mitosis se desarrollará un organismo adulto.
What are valence electrons?
A. the atomic mass
B. the atomic number
C. all of the electrons in an atom
D. electrons in the outermost energy level
Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
Answer:
D. electrons in the outermost energy level
Explanation:
The valence electrons are the electrons in the outermost energy level.
Which of the following statements about the nucleus is NOT true?
A. The nucleus contains DNA proteins that make RNA copies of DNA.
B. The nucleus is the site of protein assembly.
C. The nucleus stores the coding instructions for constructing the cell's proteins.
D. The nucleus is surrounded by a membrane that lets materials in and out.
Answer:
statement A is not true.
What part of the digestive system absorbs nutrients that our bodies need?
A. Mouth
B. small intestine
C. stomach
D. large intestine
Answer:
B. small intestine
Explanation:
The small intestine absorbs the most nutrients that our bodies need.
The atomic number determines an elements identity and shows the number of _________________ in the atom.
A. protons + neutrons
B. nucleons
C. protons
D. neutrons
Answer:
c- protons??? I'm pretty sure
Which material is the medium of ocean waves?
A. Sand
B. Water
O C. Air
O D. Rock
SUBMI
Answer:
Water
Explanation:
A medium is the substance through which a wave can propagate. Water is the medium of ocean waves.
A person who forwards on a sexual picture of another can get in as much trouble as a person sending a picture of themselves (sexting).
True
False
The statement about the s exual pictures is TRUE.
The person might get convicted for the crime and can severely punished if he post or share the pictures without consent.It comes under cyber crime.What come under cybercrime?Child P ornography OR Child s exually abusive material (CSAM) Cyber Bullying. Cyber Stalking. Cyber Grooming. Online Job Fraud. Online S extortion. Phishing. VishingTo know more about cyber crimes here
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Base your answers to questions 14 and 15 on the information in the diagram below and on your knowledge of biology. A) Finches with crushing bills eat only animals for food. B) Finches that eat animals always have larger beaks than finches that eat plants. C) Finches with grasping bills usually eat animals for food. D) Finches that eat plants all have very large beaks. 14. Based on the information in the chart, which statement is correct
Answer:
D) Finches that eat plants all have very large beaks.
Explanation:
Finches that eat plants have very large beaks because plants are big in size which can only be eaten with large beak. Those finches that lives in the environment having nuts and seeds having large beaks due to the big size of seeds and plant parts so that's why we can say that finches who feeds on plants parts have larger beaks as compared to those finches who feeds on insects.
which of the following shapes is not a common shape of a prokaryote?
a. bacilli
b. cocci
c. cylinder
d. spirochetes
NO WRONG ANSWERS PLS
Answer:
c
Explanation:
Why did Gregor Mendel choose to use purebred plants in his experiments?
A They reproduce sexually.
B They exhibit only one form of a trait.
C They have a variety of traits.
D They reproduce asexually.
Answer:
B
Explanation:
Gregor Mendel chooses to use purebred plants in his experiments because they exhibit only one form of a trait. The correct option is B.
What is Mendel's experiment?Mendel altered pure pea plant lineages. First-generation hybrids (F1) displayed dominant qualities like purple flower color while hiding recessive traits like white bloom color.
But in second-generation (F2) pea plants, recessive characteristics returned in a 3:1 ratio (dominant to recessive). Every pea plant has both male and female reproductive organs, and they all typically procreate by self-pollinating.
This was crucial to make sure that there were no other factors influencing the result of the cross when he crossed two plants with different features.
Therefore, the correct option is B, They exhibit only one form of a trait.
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Question 12
What could be an explanation if Juanito crosses one white flower with a red flower but all
the offspring are pink flowers?
sex-linked
simple Mendelian inheritance
codominance
recessive epistasis
incomplete dominance
Choose the sentence that correctly uses pronouns.
Whom stopped to pay attention to the street performer?
Everyone from children to dogs out for walks stopped to listen to she.
Him enjoyed her unusual style and mix of instruments.
The singer herself wrote that beautiful song.
[tex]\sf\purple{D.\:The\: singer\: herself \:wrote \:that\: beautiful\: song.\:✅}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
Answer:The singer herself wrote that beautiful song.
Explanation:
I got it right when i took the test
Pick the right options in the dropdown below . Which characteristic of life is represented below?
Respiration is helpful in (1 Point) Removing waste from the body Producing energy within the body Production of proteins Production of carbohydrates
Answer:
Producing energy within the body.
Explanation:
Students are studying the length of time that different battery brands can keep flashlights
operating. Which of these should remain constant in this investigation?
A. The length of time
B. The color of the flashlights
C. The type of flashlights
D. The brand of the batteries
The division of the nucleus is called
metaphase.
replication.
ОООО
cytokinesis.
mitosis.
what is photosynthesis ?
Answer:
Photosynthes is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
What is photosynthesis?
Answer:-The process by which green plants and some other organisms make thier own food by converting sun light and carbon dioxide into energy is called photosynthesis.
Summarize the functions of the vertebral column
Answer:
function of vertebral columnExplanation:
The major function of a vertebral column is to protext the spinal cord,it also provides stiffening for the body and attachment for the pectoral and pelvic girdle and many muscles. In human an additional function is to transmit body weight in walking and standing.
If the xylem in a young tree is damaged, which process is first affected?
A. performing photosynthesis
B. transporting sugar to the roots
C. transporting water to the leaves
D. absorbing water from the soil
Answer:
[tex]transporting \: water \: to \: the \: leaves.[/tex]
Explanation:
Xylem are cells in the root, stem and leaf that transport water and dissolved mineral salts from the soil to the leaf of plants.
Answer:
C. transporting water to the leaves
Explanation:
If the xylem in a young tree is damaged, the process that is first effected is the transporting of water to the leaves. So, option (C) is the correct answer.
Explain the general distribution of life in aquatic systems as a function of chemistry, geography, light, depth, salinity, and temperature.
Different types of organisms can exist in a variety of aquatic environments due to the fact that they can vary significantly from place to place and that organisms within each water system will have evolved to adapt to their specific environment.
How does light affect aquatic life?Sunlight plays a vital role in the ocean’s ecosystem. First, sunlight enters the water column, warms it, creates currents, and is then absorbed by phosphorous-rich phytoplanktons. Phytoplanktons use the energy captured by phototrophs (pigments like chlorophylls) to convert water and nutrients into organic matter.
Light availability determines the types of organisms that can live in a particular part of an aquatic environment. The deeper the water depth, the less light it can penetrate until there is no light at all.
The salinity of water affects its density which in turn affects the movement of ocean currents. It may also affect marine life which needs to regulate the intake of salt water. There is a relationship between salinity, temperature, and water density. Therefore, any change in temperature or water density will affect the salinity of the water in the area.
Water chemistry parameters (pH, dissolved organic carbon, and hardness) play a role in metal toxicity by influencing the bioavailability of aquatic species of metals in water.
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A scientist separates a population of lizards into two groups. What would
most likely increase the rate of speciation in this population?
A. Have one group breed twice as often as the other.
B. Keep the two groups apart, but in identical ecosystems.
C. Force the two groups to breed with each other.
D. Have one group live with a much stronger predator.
Answer:
Hi, there your answer is D. Have one group live with a much stronger predator.
Explanation:
Having one group live with a much stronger predator will most likely increase the chances of speciation.
What is speciation?It is a process by which a new species of an organism is created.It occurs due to evolution.It occurs when a portion of population gets separated from the original population and evolves different characters that are heritable.Will speciation occur if :one group breeds twice as often as the other? No, because no selective force is acting on it.both groups are in identical ecosystem? No, since no reason for adapting and evolving a new character will be there.both groups interbreed? No, there is no competition, no struggle for existence and hence no evolution occurs.one group lives with a strong predator? Yes, since they will evolve evasive mechanisms and characters.To learn more about species, evolution, and predator here,
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