Answer:
What is the cell theory? It has three main parts:
1. All living things are made up of cells.
2. Cells are the basic building blocks of life.
3. All cells come from preexisting cells created through the process of cell division.
As science evolved, three more components were added to the theory. Some biology classes don’t require you to know these parts of the cell theory because they weren’t part of the original definition, but it’s still useful to be aware of them:
4. Energy flow occurs within cells.
5. Hereditary information is passed from cell to cell.
6. All cells have the same basic chemical composition.
So what does the cell theory actually mean? Let’s break it down. The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
The cell theory definition states that cells are the building blocks of life. Cells both make up all living things and run the processes needed for life. Your hair, skin, organs, etc. are all made up of cells. In fact, each person is estimated to be made up of nearly 40 trillion cells! Each part of a cell has a different function, and your cells are responsible for taking in nutrients, turning nutrients into energy, removing waste, and more. Basically, everything your body does, it does because cells are directing the action!
Explanation:
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look at the arrows pointing towards atmospheric CO2. what are two major sources of atmospheric carbon?
The two major sources of atmospheric carbon are the burning of fossil fuels and respiration by living organisms.
Sources of atmospheric carbonCarbon exists in the atmosphere mostly as carbon dioxide and carbon monoxide.
Atmospheric carbon dioxide sources include but are not limited to the burning of fossil fuels, oil, or natural gas, respiration by living organisms, volcanic activities, deforestation, mining, and so on.
The sources of atmospheric carbon monoxide include but are not limited to the burning of fossil fuels in engines, automobile vehicles, and other forms of engines that utilize fossil fuels for operation.
Carbon dioxide happens to be a major contributor to the warming of the planet. In other words, carbon dioxide is a major member of the greenhouse gases whose increased concentration in the atmosphere has been the cause of global warming and climate change that has been plaguing mankind.
Carbon monoxide, on the other hand, is poisonous to living organisms above a certain concentration threshold.
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how do the questions or steps change as you work through the dichotomous key?
PLEASE I NEED THIS RIGHT NOW
hotosynthesis makes glucose while cellular respiration _______________________ glucose
Answer: Cellular respiration breaks down glucose
Explanation:
Cellular respiration is a series of chemical reactions that break down glucose to produce ATP.
2) Jessica and Maria are both making slime with different recipes. Jessica’s recipe calls for \large 1\frac{1}{2} cups of flour and Maria’s recipe calls for \frac{2}{3} cups of flour. How many cups of flour will they need in order to make both of their batches of slime?
With the help of fraction addition it is found that 13/6 cups of flour will be needed to make both of Jessica and Maria's batches of slime.
How are fractions added?
There are three easy steps to add fractions:
Step 1: First, ensure that the denominators (bottom numbers) are the same. If the denominators are not same take their LCM to make the denominators same.
Step 2: Add the higher numbers (the numerators), then multiply the result by the denominator.
Step 3: Simplify the fraction.
Amount of flour required in Jessica's recipe = 1 and 1/2 cups (mixed fraction) = 3/2 cups Amount of flour required in Maria's recipe = 2/3 cups.
Here the denominators of the fractions 3/2 and 2/3 are not same, therefore we need to find the LCM (lowest common factor) of 2 and 3 in order to make the denominators same for addition. The LCM of 2 and 3 is 6.= 3/2 + 2/3 = 9/6 + 4/6 = 13/6
Thus 13/6 cups of flour are needed to make both of their batches of slime
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if you know the amino acid sequence of a protein can you be 100% certain of the DNA sequence of the gene that codes for it?
Answer:
No
Explanation:
As each of the amino acids have several codons that code for them (as shown in the image attached) so we can't be sure as to which of the codons is the one coding for the relevant amino acid in the sequence we're looking at
100% sequence of DNA in a gene cannot be predicted by amino acid sequence. Therefore the answer is no.
What is central dogma?The series of processes in which the sequence of DNA of genes is converted into proteins is known as central dogma. The steps involved in the process are transcription and translation.
Transcription, DNA sequence is encoded by RNA polymerase to convert into single-stranded RNA. The steps of transcription are initiation, transcription, and termination. In translation, here the single-stranded RNA codes for amino acid sequences by ribosomes. The steps of translation are the attachment of single-stranded RNA with ribosomes, translation of condones to amino acids, and termination.
The sequence of three nucleotides is known as a codon. codons code for amino acids which finally code for proteins. Start and stop codons are also present.
Therefore, the central dogma process involves the conversion of DNA sequences into proteins.
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Which of the following is NOT an area of concern regarding the common type of waste management systems?
Responses
decomposition creates unsteady levels of energy
waste contains high levels of harmful bacteria
decomposition emits greenhouse gases
waste can end up in groundwater and lakes
The statement which is not an area of concern regarding the common type of waste management systems is decomposition creates unsteady levels of energy.
The first response is correct.
What is waste management?Waste management or waste disposal includes the processes and actions required to manage waste from its inception to its final disposal.
Waste management has impacts on the environment which we live. Poor waste management that ranges from non-existing collection systems to ineffective disposal causes air pollution, water and soil contamination.
Other types of waste like the open and unsanitary landfills contribute to contamination of drinking water and can cause infection and transmit diseases.
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Answer: The correct answer is decomposition creates unsteady levels of energy
Explanation: This answer has been confirmed correct.
There are no areas of concern related to energy output from decomposition.
Living organisms in our world are connected to other (11) ___________________________ in a variety of ways. The branch of biology called (12) ___________________________ is the scientific study of interactions among organisms and their (13) __________________________, including relationships between living and (14) ___________________________ things. All living things on Earth can be found in the (15) __________________________, the portion of Earth that supports life. It extends from high in the (16) ___________________________ to the bottom of the oceans. Many different environments can be found in the biosphere. All living organisms found in an environment are called (17) ___________________________ . Nonliving parts of an environment are called (18) __________________________. For example, whales, trees, and (19) _______________________ are biotic factors. Ocean currents, temperature, and (20) _________________________ are abiotic factors.
The fovea capitis helps connect the
The fovea capitis helps connect the femur to the hip.
What is fovea capitis?
The head (or ball-shaped end) of the femur has a small, oval-shaped indentation on top called the fovea capitis.It has a triangle-like form. Its base has a connection on one side to the hip socket at one end. The opposite side is joined to the other end. The triangle's tube-shaped top is joined to the femoral head at the fovea capitis.What is the function of fovea capitis?
The ligamentum teres (LT) is found in the fovea capitis. One of the big ligaments that attaches the femoral head to the pelvis.The round ligament or ligament capitis fumoirs are other names for this ligament.In infants, the LT stabilizes and transports the blood flow to the femoral head.Therefore, the fovea capitis helps to connect the femur to the hip bone.
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is this molecule...
a. fatty acid
b. straight chain sugar
c. nitrogenous base
Answer: a. Fatty Acid
Explanation:
A fatty acid is a carboxylic acid with a long side chain of hydrocarbons. Most fatty acids contain an even number of carbon atoms in the hydrocarbon chain and follow the general molecular formula of CH3(CH2)xCOOH where x is the number of carbon atoms in the hydrocarbon chain.
Help!!
What types of veins do
monocots have in their
leaves?
A. branched veins
B. parallel veins
C. taproot veins
D. fibrous veins
Answer:
parallel veins
Explanation:
The vascular structures of monocot leaves form parallel veins.
Habitat fragmentation is
caused by...
A.
overpopulation.
B. moving a species of animal to a different habitat.
C, oil spill from a boat in the ocean.
D. pieces of a habitat being divided.
Habitat fragmentation is caused by moving a species of animal to a different habitat. Option B.
Fragmentation occurs when part of a habitat is destroyed leaving a small unconnected area. It can occur naturally as a result of fires or volcanic eruptions but is usually due to human activity. A simple example is building a road through a forest.
Habitat fragmentation is defined as the process by which large habitats are transformed into a series of small patches of smaller total area separated by a habitat matrix distinct from the original habitat. Forest fragmentation can be caused by natural causes, such as lava flows and other natural disasters, or by anthropogenic causes, such as the conversion of forests to agricultural land or the development of infrastructure in protected areas.
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Answer:
b) moving a species of animal to a different habitat.
Explanation:
Habitat fragmentation is caused by moving a species of animal to a different habitat. Hence, the option (b) is correct.
33. The human organism consists of several ___ each which includes a set of interrelated ___ that work together to perform specialized functions that contribute to ______
(A) organ systems, organs, homeostasis
B) cavities, organs, the organism
C) organs, tissues, maintenance
D) organ systems, tissues, overall
functioning
E) cell systems, organelles, overall
functioning
Answer:
Option A
Explanation:
cell->tissue->organ->system->organism
Which list places the layers of the sun in the correct order from outermost to innermost?
O Corona, photosphere, chromosphere
O Photosphere, convective zone, radiative zone
O Convective zone, chromosphere, corona
O Radiative zone, corona, convective zone
13. The Law of Conservation of Mass states that matter cannot be created or destroyed
but transferred. This law was proven by the scientist Antoine Lavoisier, who heated
various substances and documented quantitative relationships. His observations proved
that the mass of the reactants is equal to the mass of the product in a chemical reaction.
Justify (give good reason) why Lavoisier's conclusions were considered a law instead of a
theory,
A. Lavoisier attempted to explain the results of his experiments.
B. Lavoisier provided sufficient empirical evidence to support his claim..
Lavoisier provided an explanation of an observed phenomena in nature.
D. Lavoisier applied the results of one experiment to explain a wide variety of
circumstances.
Lavoisier's conclusions were considered a law instead of a theory, because Lavoisier provided sufficient empirical evidence to support his claim
What is Lavoisier law ?In his tests, Lavoisier tried to show that his theory according to which matter is never generated nor destroyed in chemical reactions was true.
The knowledge of finance, biology, chemistry, and economics that Antoine Lavoisier possessed was well known. He recognised oxygen and articulated the law of conservation of mass in 1778. He detected hydrogen, developed the metric system, and changed element nomenclature in 1783.He rightly inferred that water wasn't an element but rather a combination of oxygen and combustible air, or hydrogen as it is today known. Lavoisier used the breakdown of water into oxygen and combustible air to prove his point.Learn more about Lavoisier law here:
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What is number 3 on the cell photo
Answer:
ribosomes
Explanation:
. How did Mendel study heredity?
Answer:
Explanation:
By experimenting with pea plant breeding, Mendel developed three principles of inheritance that described the transmission of genetic traits, before anyone knew genes existed. Mendel's insight greatly expanded the understanding of genetic inheritance, and led to the development of new experimental methods.
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In tomatoes, red fruit (R) is dominant to yellow fruit (r). Cross a homozygous dominant fruit with a heterozygous fruit. What percentage will the offspring have yellow fruit?
The percentage of offspring that will have yellow fruit if a homozygous dominant (RR) fruit is crossed with a heterozygous (Rr) fruit is 0%.
What is a punnet square?A punnet square is the graphical representation used to determine the probability of an offspring expressing a particular genotype.
According to this question, in tomato plants, red fruit (R) is said to be dominant to yellow fruit (r). This means that the homozygous dominant genotype will be RR while the heterozygous fruit will have a genotype of Rr.
Hence, if a cross between RR (red) × Rr (red) occurs, the following offsprings will be produced:
RRRRRrRrBased on the above genotype of the offsprings, it can be observed that none of them have a yellow fruit phenotype, hence, the percentage will be 0%.
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4
What is the
sugar source?
A. where the sugars are needed
B. what is used to transport the sugars
C. where the sugar is made this
Learn how to correctly prepare and observe specimens using _____________________ ______________________ slides.
Microscope slides are used to support samples of organic material to observe under the microscope.
What are microscope slides?
Microscope slides are small flat pieces of thin, delicate glass of varying sizes. Usually, their size is about 75 x 25 mm, but they might vary according to the brand.
They are used to hold samples of tissue of diverse nature to observe under the microscope.
The way to prepare a slide might vary according to what you need to observe under the microscope and if it is a definitive or temporal microscopic prepared.
Sections of the sample are placed over the glass slide and fixated with liquid or other elements. It can be previously stained to observe and differentiate different structures.
Usually, to avoid lens accidents, slides are prepared together with cover glasses, which are even thinner squared pieces of glass that cover the organic material, so the lens does not get in touch with it.
There are graticule slides useful to make counts or take measures of the sample content.
Learn how to correctly prepare and observe specimens using _microscope_ slides.
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I am the Earth.
Things with mass
are attracted to me
by the force of
Answer:
Gravity
Explanation:
Which of these is a form of CHEMICAL
energy produced during the light
reaction of photosynthesis?
A. ATP this answer
B. DNA
C. RNA
ATP is a form of CHEMICAL energy produced during the light reaction of photosynthesis.
The correct option is A.
Briefing:All told, these processes convert solar energy into chemical energy, which is represented by ATP and NADPH. ATP and NADPH from of the light-dependent activities are used in the Calvin cycle, the final stage of photosynthesis, to make sugars.
What is photosynthesis ?Photosynthesis is the process through which plants turn carbon dioxide, water, and sunlight into oxygen and sugar-based energy.
What makes photosynthesis so important?Sunlight is converted into chemical energy by photosynthesis, which is then conserved for later use. The biological systems on the planet largely receive energy from this method.
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A political consequence of sustainability describes a change in the way people or businesses are governed. Which statement best describes a political consequence of sustainable waste management?
A. Businesses are penalized for improper waste clean-up.
B. Incinerators release fewer emissions into the atmosphere.
C. Transporting waste to other countries saves money for landfills.
D. Ecosystems are saved when less land is used for landfills.
The statement that best describes a political consequence of sustainable waste management is- Ecosystems are saved when less land is used for landfills.
What is sustainable waste management?
In order to decrease the amount of solid waste disposed of in landfills or by incineration, sustainable waste management tries to keep materials in use for as long as possible. To help lessen the detrimental environmental, social, and financial effects of 21st-century consumption, a more thorough approach to sustainable waste management must concentrate on the entire lifecycle of a product. However, in our current linear economy, waste starts even before products are manufactured.
A political consequence of sustainability develops the process of creating the circumstances in which the environment's quality can be preserved and enhanced and, as a result, contribute to sustainable development.
The sustainable waste management policy goals are:
minimizing the production of garbageminimizing the environmental impact of production chainswaste utilization optimization in a circular economyTo learn more about sustainable waste management from the given link
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Some fungi live with other
organisms in a beneficial
relationship.
Which of the following is one of
these relationships?
A. fungi and fish
B. fungi and green algae this
C. fungi and mammals
D. fungi and reptiles
Answer:B
Explanation: Fungi and green algae have a symbiotic relationship because the fungi gets pigment from the algae and the algae helps with absorbing water from the help of the fungi
Answer:
b) fungi and green algae
Explanation:
Some fungi live with other organisms in a beneficial relationship. Fungi and green algae is one of these relationships. Hence, the option (b) is correct answer.
In his arguments, the rancher focuses only on his family. In what way is this technique effective? Could his arguments benefit from additional information? If so, what kinds of information?
This technique is effective because by doing so, he draws attention to his issue and makes it easier for others to relate to the rancher's family's predicament.
Arguments where the rancher just focuses on his family can be successful because he attracts attention to his issue and makes it easier for others to relate to the rancher's struggling family. People can identify with others more readily when the discussions are more intimate.
In the movie The Rancher, a physically and emotionally traumatized man comes back to claim the ranch he inherited from a father who hated him. By the time he was sixteen, he hated him so much that he drove him off his land. But when he got back, he discovered friends and family, even if they had to drag him into the group against his will.
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In this illustration, the small blue spheres represent water molecules. Sections A and B are divided by a membrane, with section A containing fewer water molecules than section B. In which direction will water molecules move across the membrane? Sections A and B are divided by a membrane, with section A containing fewer water molecules than section B Question 9 options: Water will move from A to B There will be no net movement of water. Water will move from B to A.
The water molecules will move from B to A in a media where the small blue spheres represent water molecules, sections A and B are divided by a membrane and section A contains fewer water molecules than section B (Option 3).
What is the movement of osmosis?The movement of osmosis refers to the physical phenomena for which solvent molecules (in this case water molecules) move from a region of high concentration to a region of low concentration through a semi permeable membrane barrier. This transport (i.e., the movement of osmosis) is fundamental to allowing metabolic processes into a cell.
Therefore, with this data, we can see that the movement of osmosis is due to the movement of solvent water molecules from a region with a high concentration to a region with having lower concentration, which occurs to maintain the state of equilibrium or homeostasis of the system.
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I need the answer to it asap
Answer:
C: Excess fertilizer carried into rivers
Explanation:
Fertilizer used in agriculture is largely made up of nitrogen and phosphorus (and potassium). Runoff from regular landscaping practices and agricultural farming creates a buildup of these substances that is then carried to the Dead Zone by the Mississippi River.
A person weighing 200 N on an elevator the elevator lifts the person 6 m in 8 seconds how much power was used
The power used is 150 W.
Power is defined as the amount of work done per unit time or the transfer of energy.
For the calculation of power, formulae are
[tex]P = \frac{W}{t}[/tex]
[tex]PE = mgh[/tex]
where
P = Power in Watts (W) or Joules/sec (J/s) or N.m/s
W = Work in Joules (J) or Newton-meter (N.m)
t = time in seconds (s)
PE = gravitational potential energy in Joules (J) or Newton-meter (N.m)
m = mass in kilogram (kg)
h = height in metres (m)
Given:
w = 200 N
h = 6 m
t = 8 s
Calculation:
PE = 200×6
PE = 1200 J
P = W/t
P = 1200J/8s
P = 150 Watts
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This diagram shows a plant cell. Which structure is found in a plant cell but is absent in an
animal cell?
A- 3
B- 1
C- 2
D- 4
What is heart wood made
of?
A. the center rings that are dark and no
longer work as they are filled with resin this is answer
B. the outer layer of rings that are
rough and have a waxy protective
coating
C. the lighter rings of a tree that are
the living tissue
Answer: A. the center rings that are dark and no longer work as they are filled with resin
Which term describes the chromosomal abnormality of having three copies of a single chromosome?
A.haploidy
B.diploidy
C.trisomy
D.tetrasomy
