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
yponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.
Answer:
D is the correct answer..
this may help you...crossing-over can occur during meiosis I in:
a. prophase I.
b. metaphase I.
c. anaphase I.
d. telophase I.
Answer:
b. metaphase l.
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.
Select the correct answer.
A gardener crosses tall true–breeding pea plants with short true–breeding ones. Tall plants are dominant to short ones. He collects the seeds to grow F1 plants and then allows them to self–pollinate to form an F2 generation. Which of the following describes the traits of the offspring correctly?
A.
Three–fourths of the F1 and one–half of the F2 plants will be tall.
B.
All of the F1 and three–fourths of the F2 plants will be tall.
C.
Three–fourths of the F1 and all of the F2 plants will be tall.
Answer:
Explanation:
Let T = tall allele (dominant), t = short allele
True breeds are homo-zygous.
So the gardener is crossing TT with tt, with the resulting genotype of F1 all equal to Tt, i.e. all Tall hetero-zygous.
When the F1 pea plants are allowed to self-polinate, F2 results in Tt crossing with Tt, with the genotypes TT, Tt, tT and tt, and phenotypes 75% tall and 25% short, tall being dominant.
At what degree both North and South does air begin to sink back to the surface?
A. 30°
B. 45°
C. 50°
D. 60°
I'm doing the fresh fruit vs canned fruit experiment and if I prepared the fruit a different way would it effect the gelatin
Answer:
How the gelatin is prepared can affect the result.
Explanation:
To perform this experiment efficiently, you need to prepare the jelly made from fresh fruit and the jelly made from canned fruit equally. That's because if you modify the ways of preparing the gelatins, they will show many differences and you won't be able to tell if this difference was caused only by the nature of the fruits, or by the way of preparation. Therefore, the way the gelatins were prepared can modify the experiment result and leave it imprecise and unreliable.
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.
Which two words describe the grass in this food chain?
A. Autotroph, primary consumer
B. Heterotroph, producer
C. Heterotroph, primary consumer
D. Autotroph, producer
Answer: Autotroph, producer
Explanation: The grass gets eaten by primary consumer starting the food chain
In a food chain, the grass is referred to as an autotroph and producer. Therefore, option D is correct.
What are autotrophs?An organism is referred to as an autotroph or primary producer when it uses carbon from simple substances like carbon dioxide to create complex organic compounds. These creatures often obtain their energy from inorganic chemical reactions or light.
Both plants like blue-green algae and microorganisms like cyanobacteria are assumed to be autotrophs. Most plants are autotrophs because they create their own food through photosynthesis. But there are always exceptions to the norm. Some plants are parasitic and non-photosynthetic, getting their nutrition from a host.
Thus, the grass in a food chain is described as autotroph and producer. Therefore, option D is correct.
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The burning of fossil fuels contributes to the addition of greenhouse gasses to the atmosphere. These gases trap thermal energy in the Earth’s atmosphere. Which of the following would be the most reasonable changes that could result from an increase in the burning of fossil fuels? *
a.The air all over the globe would become dirtier.
b.There would be a global rise in temperatures.
c.Ecosystems would become more diverse.
d.Rates of photosynthesis would decrease.
Answer:
There would be a global rise in temperature.
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.
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.
When cells join together, what is formed?
A. Tissue
B. Organs
Answer:
a.tissue
Explanation:
when cells join together tissues are formed
when tissue join together organs are formed
Answer:
A. Tissue
Explanation:
The cells join together to form tissue. So, option (A) is the correct answer.
Which is a characteristic of cancer cells?
A. Cytokinesis stage is skipped
B. Contain multiple genetic change.
C. Cell cyclins function normally.
D. Controlled cell Division
Answer:
contain multiple genetic changewhat animal has 8 hearts?
Answer:
no animal has 8hearts
Explanation:
tho octopus have 3hearts
You observe a tissue under a microscope. There appears to be a lumen on one side of the issue. Lining this lumen is a single layer of epithelial cells that seem to have long, fingerlike projections Beneath the projections, the cells seem to have the shape of shoeboxes and are packed tightly together. What type of tissue are you looking at? A. stratified squamous epithelium B. simple columnar epithelium C. simple cuboidal epithelium D. transitional epithelium
Answer:
D. Transitional epithelium
Explanation:
ANSWER ALL QUESTIONS PLEASE
1. List and describe the five kingdoms of life.
Who developed this system?
What is the basis for the divisions?
Why is it important to the study of biology?
Answer:
1. animal kingdom: a basic group of natural objects that includes all living and extinct animals compare mineral kingdom, plant kingdom. 2.plant kingdom: Mosses, ferns, conifers, and flowering plants are all members of the plant kingdom. The plant kingdom contains mostly photosynthetic organisms; a few parasitic forms have lost the ability to photosynthesize. The process of photosynthesis uses chlorophyll, which is located in organelles called chloroplasts. 3. Fungi kingdom: Fungi are eukaryotic organisms that include microorganisms such as yeasts, moulds and mushrooms. These organisms are classified under kingdom fungi. The organisms found in Kingdom fungi contain a cell wall and are omnipresent. They are classified as heterotrophs among the living organisms. 4. protist kingdom: The protist kingdom is a classification that includes a diverse group of eukaryotic organisms. Typically, protists reproduce asexually via mitosis and range from unicellular to multicellular organisms. 5. monera kingdom:
Explanation:
2.Carl Linnaeus Carl Linnaeus (1707–1778) laid the foundations for modern biological nomenclature, now regulated by the Nomenclature Codes, in 1735. He distinguished two kingdoms of living things: Regnum Animale ('animal kingdom') and Regnum Vegetabile ('vegetable kingdom', for plants).
3. The largest category in this system is called kingdom, and has five subdivisions: Animalia, Plantae, Fungi, Monera and Protista. All known organisms fall into one of these large categories.
4. The living organisms are divided into five different kingdoms – Protista, Fungi, Plantae, Animalia, and Monera on the basis of their characteristics such as cell structure, mode of nutrition, mode of reproduction and body organization.
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.
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.
In genomic imprinting, the expression of a genetic disorder depends on
Answer:
a
Explanation:
a
I’m leaning more into c but I need help ASAP please...
PLEASE!! I HAVE TWO TO WRIGHT IM CURRENTLY DOING THE OTHER!!! 100PTS (Science)
Part E: Writing Your Paper
Using your materials from this task, write your research paper. Its length should be 1,000 to 1,250 words. When you’ve finished writing the paper, be sure to proofread your work to catch any errors in grammar, spelling, logic, or organization. Submit your completed paper along with this activity.
Course Activity: Human Effects on Ocean Ecosystems:Writing a Research Paper
In this activity, you will prepare a 1,000- to 1,250-word research paper about the effects of human activity on ocean ecosystems. You will focus on one particular human activity that has a negative effect on the ecosystem. You’ll also compare and contrast at least three existing solutions to prevent or manage the problem. The human activity you choose should be specific, be realistic, and have predictable effects on the ecosystem. For example, deforestation is a specific human activity that has a negative effect on forest ecosystems. At the end of the paper, you will write a one- to two-paragraph proposal describing a program to educate citizens on this problem and encourage them to do their part to prevent it.
What 3 characteristics does an object have to have in order to be considered a planet
Answer:
a planet must do three things: It must orbit a star(sun) It must be big enough to have enough gravity to force it into a spherical shape. It must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the Sun.
Which three industries would be the most directly affected if regulations and laws regarding deforestation became stricter?
Answer: Timber industry, paper industry, furniture industry.
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
What is DNA (Deoxyribose Nucleic Acid)?
DNA ( Deoxyribose Nucleic Acid ) is a molecule.
and its where a bunch of atoms stuck together.
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:
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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Which iS required for both anaerobic
respiration and aerobic respiration?
oxygen
water
mitochondria
glucose
Answer:
glucose
Explanation:
bc i said so
What happens during prophase?
answer:
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. ... The replicated chromosomes have an X shape and are called sister chromatids
Explanation:
Answer:
Which statement best describes how Poe creates mood in the excerpt?
Poe uses rhyme to create an optimistic mood.
Poe uses rhyme to create a nostalgic mood.
Poe uses rhyme and onomatopoeia to create a rowdy mood.
Poe uses rhyme and onomatopoeia to create a boastful mood.Explanation:
