Which are the main points of the cell theory? Select all that apply.
Answer Options:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
c. All cells enclose their DNA within a nucleus.
d. All living things are made up of cells.
Answer:
a. Cells are the basic units of structure and function in living things.
b. New cells are produced from existing cells.
d. All living things are made up of cells.
Explanation:
Cell theory states that cell living organisms are composed of at least one cell, which are the basic unit of life.
Cells are always produced from other living cells, and cannot spontaneously generate.
However, not all cells enclose their DNA within a nucleus, prokaryotic organisms (bacteria) do not possess a nucleus but still have DNA
What is the difference between eukaryotic and prokaryotic cells?
Eukaryotic cells are found in bacteria and prokaryotic cells are not.
Prokaryotic cells are found in plants and animals and eukaryotic cells are not.
Eukaryotic cells contain organelles and DNA enclosed within a nucleus and prokaryotic cells do not.
Prokaryotic cells contain no organelles except DNA enclosed within a nucleus and eukaryotic cells do not.
How does energy change from one form to another?
Answer:
Energy transformation, also known as energy conversion, is the process of changing energy from one form to another.
Explanation:
Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. For example, to heat a home, the furnace burns fuel, whose chemical potential energy is converted into thermal energy, which is then transferred to the home's air to raise its temperature.
Energy changes from one form to another by:
Energy transformationEnergy transformation, is the primary method through which energy is converted from one form to another.
There are different forms of energy such as:
Mechanical energyElectrical energyChemical energy, etc.As a result of this, we can see that chemical energy can be converted to electrical energy through the means of energy transformation
Therefore, the correct answer is energy transformation
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In a longitudinal wave, the parts where the coils are close together are called what.
Answer:
The answer is compressions.
Explanation:
A compression is a region in a longitudinal wave where the particles are closest together. Hope this helped :)
Answer: compressions
Hope this help :)
Based on their scientific name, you know that African bush elephants, or Loxodonta africana, and African forest elephants, or Loxodonta cyclotis, belong to the same
Answer:
they belong to the same Species
Explanation:
Loxodonta must mean "Elephant" because both scientific names are the scientific versions of elephants. This must mean that the answer is that they belong to the same species.
Answer:
To the same species
Explanation:
it just is
QUESTION 1
Fill in the blank with the correct vocabulary terms. Not all terms will be used.
observations hypothesis Biotic Abiotic Evidence Homeostasis Biology quantitative
qualitative
Inference
is the study of life. When making scientific scientists often begin by formulating a
numbers are called and observations that involve the five senses are called
Types of observations that involve
Biology
observation
hypothesis
quantitative
qualitative
Define invasive species
Answer:
An invasive species is a non-native species that spreads from the point of introduction and becomes abundant. The invasive species label attaches only to populations of species whose impact upon introduction has altered their new environment.
Explanation:
Answer:
Invasive species
Explanation:
An invasive species is an animal imported from another country. For example: the Giant African Snail. Hence their name, the Giant African Snail came from Africa. They first came into Florida as pets, and were then released into the wild. Since then, they have spread across the state. These snails eat plants voraciously, damaging crops and competing with local wildlife. They will also eat stucco, wood, and plaster, causing thousands of dollars in damage.
I attached a picture please help. All I need is #3. :)
A summary of the article history of the cell discovering the cell
Spartina is a group of grasses that dominates communities of salt marshes in many coastal areas. Many of the insects, snails, birds, mice, and other animals found in these communities rely on Spartina for food, nest building materials, protection for their young, etc. The roots of Spartina also form dense mats that hold together soil in these ecosystems. Many species that live in Spartina salt marshes cannot survive outside of these unique ecosystems. Because living near the ocean is desirable to many humans, many Spartina marshes have been drained & cleared for human development. Analysis of the destruction that came when Hurricane Katrina hit Louisiana in 2005, however, showed that the reduction of salt marshes in coastal Louisiana was a contributing factor to the storm surge penetrating further inland.
1. The value of Spartina salt marshes in protecting coastal areas from storm surge would be classified as which type?
A. Extrinsic.
B. Intrinsic.
C. Neither.
2. The value of Spartina salt marshes in holding soil together would be classified as which type?
A. Extrinsic.
B. Intrinsic.
C. Neither.
3. In general, you would expect species that only live in Spartina salt marshes to have a higher extinction risk than species that can survive in urban areas.
A. True
B. False
4. Based only on the information included in this scenario, extinction risk for species that only live in Spartina salt marshes would be most influenced by which factor?
A. Restricted geographic range.
B. Narrow habitat requirements.
C. Small population size.
Answer:
1)a. Extrinsic
2) b. Intrinsic
3) a. True
4) a. Restricted geographic range
Explanation:
1. Spartina Salt marshes are important to the coastal areas as they protect them from storm surge as affecting the erosion of salt marsh edges and it is classified as extrinsic.
2) b. Intrinsic
Intrinsic factors such as vegetation and soil affect the erosion of salt marsh edges. It is determined by characteristics of soil and root biomass found under the ground.
3) a. True
Species that could survive in urban areas are less prone to extinction than the species that only survive in spartina salt marshes.
4) a. Restricted geographic range
A restricted geographic range is a factor that leads and affects the extinction in endemic species more.
how did avery help build our undertanding of genetics
What is the difference between an independent variable and a dependent variable? How are these different from constants?
Which are nonpolar?
A.carbohydrates
B. lipids
C. proteins
D. nucleic acids
1. Which carbon (organic) compound is most abundant in the potato?
Answer:
polysaccharides
Explanation:
Oxygen atoms normally have 8 protons, 8 neutrons, and 8 electrons. An isotope of
oxygen with an atomic mass of 18 would have two extra
Charged particles
Neutrons
Protons
Electrons
Answer:
The answer is Neutrons
An isotope of oxygen with an atomic mass of 18 would have two extra Neutrons. Hence, option B is correct.
What is an isotope?Isotopes are atoms with the same atomic number but different atomic masses. In other words, atoms having the same number of protons but different numbers of neutrons are called isotopes. Although isotopes have highly similar nuclear properties, they have equivalent chemical properties.
For instance, hydrogen has three isotopes. While tritium (one proton and two neutrons) is radioactive, the other two isotopes are unstable. Stable isotopes exist for most elements. For several elements, radioactive isotopes can also be produced. When compared to lighter isotopes of the same element, heavier isotopes often react more slowly.
An isotope has a different number of neutrons. Therefore, option B is correct.
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If two heterozyotes for dwarfism have children what proportion of their kids would you expect to be of typical size and not exhibit dwarfism?
Answer:
3/4 or 75%
Explanation:
This question involves a gene coding for height in humans. The allele for normal height (D) is dominant to the allele for dwarfism (d).
If two heterozygotes for dwarfism are crossed i.e. Dd × Dd, the following gamete will be produced by each heterozygote parent:
Dd - D and d
Using these gametes in a punnet square (see attached image), the genotypes of the expected offsprings will be as follows- DD (1) : Dd (2) : dd (1)
(1) DD - typical normal size
(2) Dd - heterozygous normal size
(1) dd - dwarf
The offsprings expected to be of typical size and not exhibit dwarfism are offsprings DD and Dd, which represent 3/4 of the offsprings. Hence, the proportion is 3/4 or 3/4 × 100 = 75%.
Two different species of rock pocket mice live in the same desert Both eat plant seeds. What phrase best describes their relationship to each other?
predator-prey
interspecific competition
competition
intraspecific competition
Answer:
a
Explanation:
Need help with thisMARKING PEOPLE AS BRAINLIST
Answer:
1. Glycolysis
2. Krebs cycle
3. Electron transport chain
Explanation:
Sorry for being late. Yet I hope it helps
Female killer whales can live for ____ years or more. 50 80 30 60
PLEASE HELP
Answer:
50 years
Explanation:
Compare characteristics of severe weather conditions for thunderstorms tornadoes hurricanes and cyclones
Explanation:
Thunderstorms:
A thunderstorm is produced by a cumulonimbus cloud, or thunderhead, that includes rain showers, lightning, and thunder.
They start when the sun heats the earth's surface and warms the layer of air above it. This warmed air rises and transfers heat to the upper levels of the atmosphere. As the air travels upward, it cools and the water vapor contained within it condenses to form liquid cloud droplets. As air continually travels aloft in this way, the cloud grows upward in the atmosphere, eventually reaching altitudes where the temperature is below freezing. Some of the cloud droplets freeze into ice particles, while others remain "supercooled." When these collide, they pick up electric charges from one another; when enough of those collisions happen, the big buildup of charge discharges, creating lightning.Thunderstorms are most hazardous when rain decreases visibility, hail falls, lightning strikes or tornadoes develop.
Tornadoes:
tornado is a violently rotating column of air that extends down from the base of a thunderstorm to the ground.
When wind near the earth's surface blows at one speed and wind above that blows at a much faster speed, the air between them whips around into a horizontal rotating column. If this column gets caught in the thunderstorm updraft, its winds tighten, speed up, and tilt vertically, creating a funnel cloud.Tornadoes are dangerous—even deadly—because of their high winds and subsequent flying debris.
Hurricanes:hurricane is a swirling, low-pressure system that develops over the tropics with sustained winds that have reached at least 74 miles per hour.
Warm, moist air near the ocean's surface rises upward, cools, and condenses, forming clouds. With less air than before at the surface, the pressure drops there. Because air tends to move from high to low pressure, moist air from surrounding areas flows inward toward the low-pressure spot, creating winds. This air is warmed by the ocean's heat and the heat released from condensation, so it rises. This starts a process of warm air rising and forming clouds and surrounding air swirling in to take its place. i hope helps u marks as brainlist
Which statement is true about the appendicular skeleton of the human body?
Answer:
I am pretty sure it is, The consists of the bones that form the limbs and the bones that attach the limbs to the axial skeleton. But I am not positive, I hope this helps!!
Explanation:
Option C, It consists of the bones that form the limbs and the bones that attach the limbs to the axial skeleton.
The part of the vertebrate skeleton that has the bones that hold up the body is the appendicular skeleton, which comprises the elements within the limbs, pelvic and pectoral girdle. It holds the bones that produce and uphold the libms and joins them with the axial skeleton. The appendicular skeleton has 126 bones and helps manipulate the upper limbs.
How did the plow change farming during the Neolithic
period?
The plow helped farmers control water and irrigate
crops, resulting in food surpluses.
The plow allowed most people to give up farming
and to take up other kinds of work.
O The plow turned soil quickly, allowing farmers to
plant crops more easily.
The plow was used by hunter-gatherers to
domesticate plants and animals.
Answer/C
Explanation:i got it right
Answer: its c on edg
Explanation: i got it right
Which contributing factors cause the thermosphere to be warmer than the mesosphere?
A. Gases are more dense in the thermosphere and absorb energy easily.
B. Sunlight is reflected by the abundant gases, oxygen and nitrogen, in the mesosphere.
C. The abundance of hydrogen gas causes explosions, sending heat into the stratosphere.
D. Ultraviolet radiation is absorbed, and fewer air molecules cause the thermosphere to heat quickly.
Answer:
d
Explanation:
suns ultraviolet rays are absorbed in the thermosphere
The contributing factors cause the thermosphere to be warmer than the mesosphere is ultraviolet radiation is absorbed, and fewer air molecules cause the thermosphere to heat quickly.
What are the effects of ultraviolet radiation?The experiment that ultraviolet light made plants grow more slowly is the experiment most likely has greater reliability in which the experiment repeated several times and each time found that plants grow slightly slower with ultraviolet rays because the experiment was repeated with the same.
The main effect of ultraviolet light on plant growth is during photosynthetic active radiation under high level, UV -B light increases the net plant photosynthesis in several plant species.
Higher production of dangerous radiation can be induced under both UV-B and high PAR in young and old plant leaves.When UV light is obtained by plants resins production increases and plant become richer in smelling and better in tasting.Due to increase in resin production the plant is protected from pests and diseases.
Therefore, The contributing factors cause the thermosphere to be warmer than the mesosphere is ultraviolet radiation is absorbed, and fewer air molecules cause the thermosphere to heat quickly.
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___ is the purpose of your experiment; question or problem that you want to investigate.
a
Problem
b
Hypothesis
c
Solution
d
Conclusion
Answer:
B
Explanation:
The purpose of an experiment is to test the hypothesis. Hypotheses are formed based on observations, and an experiment is designed to see if the hypothesis is right.
Write a paragraph in the space below, explaining in your own words how electromagnetic radiation is created by the Sun. Describe the difference between the different forms of electromagnetic radiation and how scientists classify the types of electromagnetic radiation.
Answer:
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths. Electromagnetic energy passes through space at the speed of light in the form of sinusoidal waves.
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, earth, and other bodies radiate electromagnetic energy of varying wavelengths. Electromagnetic energy passes through space at the speed of light in the form of sinusoidal waves.Explanation:
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Electromagnetic radiation is created by the sun through nuclear fusion, and there are different forms of electromagnetic radiation, such as radio waves and gamma waves, that are based upon their frequency and wavelength.
What is the significance of the radiation?There are different radiation that are significant, such as radiation that travels through space in the form of electromagnetic waves, and there are multiple applications in industries such as communication, such as in radio and television broadcasts, and many household appliances, such as remote controls, etc.
Hence, electromagnetic radiation is created by the sun through nuclear fusion, and there are different forms of electromagnetic radiation, such as radio waves and gamma waves, that are based upon their frequency and wavelength.
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In soreflies (a hypothetical insect), the dominant allele, L, is responsible for resistance to a common insecticide called Loritol. Another dominant allele, M, is responsible for the ability of soreflies to sing like birds. A true-breeding mute, Loritol-resistant sorefly was mated to a true-breeding singing, Loritolsensitive sorefly, and the singing, Loritol-resistant female progeny were testcrossed with true-breeding wild-type (i.e., mute, Loritol-sensitive) males. Of the 400 total progeny produced, 119 were mute and Loritol-resistant, 114 could sing and were Loritol-sensitive, 81 could sing and were Loritol-resistant, and 86 were mute and Loritol-sensitive. Do you think the (L) and (M) gene loci are linked or unlinked? Justify your answer
Answer
The (L) and (M) gene loci are linked.
Explanation:
Due to some technical problems, you will find the complete explanation in the attached file named Linked genes.
What is a product? Please explain
Answer:
In mathematics, a product is the result of multiplication, or an expression that identifies factors to be multiplied.
Explain:
For example, 30 is the product of 6 and 5 (the result of multiplication), and is the product of and. (indicating that the two factors should be multiplied together).
role of the two components of the ribosomal complex.
Answer:
The ribosome is a highly complex cellular machine. It is largely made up of specialized RNA known as ribosomal RNA (rRNA) as well as dozens of distinct proteins (the exact number varies slightly between species). The ribosomal proteins and rRNAs are arranged into two distinct ribosomal pieces of different size, known generally as the large and small subunit of the ribosome.
Explanation:
3. What happens when a cell is subjected to a solution where the water concentration is equal to that inside the cell (isotonic solution)?
Explanation:
In an isotonic solution the relative concentration of solute and water are equal on both sides of the membrane.so there is no water movement so there is no change in the size of the cell but, when a cell is placed in a hypotonic solution water will enter the cell and the cell will swell.
As a college student, you are no doubt concerned about the grades that you earn while completing your coursework. If you wanted to know how overall GPA is related to success in life after college, how would you choose to approach this question and what kind of resources would you need to conduct this research?
I am not a college student, I am a Freshman in High School but if I were in college this is what I would say:
In college the GPA of the student is very important and it helps a student obtain good colleges and courses in this regard.
The data collected from college alumni about their careers after college would be the required resource in this case.
What is meant by a research resource?
The kind of research one wants to do and the kind of questions in mind guide the kind of resources required for research. Currently, access to any kind of information for anyone is greater than ever before.
Thus, for good research, it's important to collect data from the right kind of resources. It needs to be located, organized, evaluated, and used for the communication of information.
Various places can be a home for a research resource or be research resources themselves. These can be traditional libraries. Whereas, personal experiences can be important research resources.
Print media, which includes journals, books, brochures, newspapers, and magazines are conventional research resources. Currently, electronic sources found on the Internet are being used. Interviews or surveys can also be considered research resources.
Therefore, to understand the impact of GPA on students' careers, we need to collect data on their careers.
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