Answer:
Eclipses only occur during full and new moons. Earth rotates around its axis faster than the moon. ... The moon's axis does not always align with Earth's shadow.
Explanation:
Answer:
The moon's axis does not always align with Earth's shadow.
Explanation:
The Earth goes around the Sun, while the moon goes around the Earth, so all of them lining up exactly doesn't happen that much. I also jus got it right.
A peptide has the sequence of Gly-Ser-Glu-Leu-Ala-His-Gly-Arg-Leu-Ala-PheCys-Leu. (pKR=4.25, 6.0, 8.2, 12.5. Assume pKa’s of amino terminus and carboxyl terminus are 9.6 and 2.3, respectively.) The PI of the peptide is close to:_______
a. 7.1
b. 7.8
c. 5.1
d. 8.2
e. 10.3
Answer:
The correct answer is option a. "7.1".
Explanation:
One easy way to determine if a peptide sequence is acidic, basic or neutral is to check for the number of amino acid residues that are acidic, basic or neutral. In this case, most amino acid residues are neutral, which mean that under neutral conditions they have a pKa close to 7.0. Particularly, the content of 3 leucine, 2 alanine and 2 glycine residues determines that the peptide have a pI of around 7.1.
TIME REMAINING
Which homeostatic process moves particles against a concentration gradient?
dynamic equilibrium
passive transport
osmosis
active transport
Answer:
active transport
Explanation:
.
Answer:
D. active transport
Explanation:
What are the three products of the light reaction of photosynthesis
Photosynthesis uses light energy, carbon dioxide, chlorophyll and water to produce oxygen, glucose and water.
I need help please bro
Answer:
The answer is 'organs'.
Explanation:
Organs are defined as a collection of tissues that perform a specialized task. Thus, the correct answer is that tissues combine to create organs.
Temperature versus Photosynthesis Temperature in Celsius degrees Photosynthetic Rate 0 20 10 40 20 100 25 150 30 200 35 125 40 0 What is the independent variable based on the data shown? A) temperature B) plant growth C) rate of photosynthesis D) cannot determine based on information given
Answer:
A) Temperature
Explanation:
Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response.
In this question given, the data is portraying the Temperature versus Photosynthetic rate. This means that the experimenter is testing to see the effect of varying temperatures on the photosynthetic rate. Hence, the TEMPERATURE is the independent variable because it is the variable being changed.
Using binomial nomenclature format, identify the scientific names written incorrectly and write them correctly. (1 pt.) 1.Pseudomonas aeruginosa 2.Escherichia coli 3.staphylococcus aureus 4.Proteus vulgaris i need you guys help?
Answer:
Pseudomonas aeruginosa
Escherichia coli
Staphylococcus aureus
Proteus vulgaris
Explanation:
Binomial nomenclature means a system of using two terms to describe the name of an organism.
It is a generally accepted system of nomenclature in biology. The first term represents the genus of the organism while the second name represents its specie.
The genus name begins with an uppercase letter while the species name is written in lowercase letters throughout.
The names of organisms in the answer section have been correctly written according to these rules.
what solution describes a saturated solution?
Answer:
This is not my answer, I found it on the internet.
No more solutes can be dissolved in a saturated solution at a given temperature and pressure.
Explanation:
A saturated solution is a solution that consists of maximum amount and concentration of the solute that is dissolved in the solvent.
The extra amount of solute cannot be dissolved in a saturated solution.
The saturated solution is composed of solute and solvent and solvent cannot dissolve more solute at some extent.
The carbonated beverage is an ideal example of saturated solution.
A saturated solution is one that contains the greatest concentration and amount of the solute dissolved in the solvent. In a saturated solution, the excess solute cannot dissolve.
What is Saturated solution?Solvent and solute make up the saturated solution, and to a certain extent, solvent cannot dissolve more solute. A saturated solution is best exemplified by fizzy beverages.
A solute's solubility is the greatest amount of that solute that can dissolve in a solvent at a given temperature and pressure. The moles of solute per volume (mol/L) or the mass of solute per mass of solvent (g/g) are other common ways to express solubility.
There is typically a limit to how much solute can dissolve in a given amount of solvent, even for extremely soluble compounds. In general, temperature and pressure—for gases—as well as the energy components we have already covered affect a substance's solubility.
Therefore, A saturated solution is one that contains the greatest concentration and amount of the solute dissolved in the solvent. In a saturated solution, the excess solute cannot dissolve.
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Which of the following defines Statutory Law? *
1 point
laws created by government agencies
laws that come from judges' decisions that rely on common sense and previous
cases
laws passed by Congress and state and local governments
laws based on the constitution
Climate change has caused polar ice caps and glaciers to experience greater melting during summer months. What effect could this have on coastal towns?
Suppose that a late succession plant that is surrounded by early succession plants grows at a rate of 0.5 cm per day. If the early succession plants are removed experimentally, the late succession plants are observed to grow at a rate of 0.9 cm per day. This experiment shows that the early succession plants have a _______ effect on the late succession plants, and this observation is most consistent with the _______ model of succession.
Answer:
negative, inhibition
Explanation:
The experiment in the illustration shows that early succession plants have a negative effect on the late succession plants, and the observation is most consistent with the inhibition model of succession.
That the late succession plant thrives better in the absence of the early succession plants means that the early succession plant has been impacting the growth of the late succession plant negatively. This is consistent with the inhibition model of succession.
There are 3 different models of succession. These include;
Facilitation model in which colonists modify the environment to favor the growth of later successional species.Tolerance model in which early colonists' modification of the environment has no positive or negative impact on the growth of later successional species.Inhibition model in which early colonists modify the environment to inhibit the growth of later successional species.Which trait is unique to birds
Answer:
Birds have big eyes. Hawks, eagles, and owls often have eyes actually larger than human's. A human eye weighs less than 1% of the weight of the head, whereas a starling's eye accounts for some 15% of its head weight. A unique bird characteristic.
Explanation:
Light behaves in specific ways. It can be reflected, refracted, or absorbed, and under certain conditions, run into different kinds of interference. Which explanation best describes why light is refracted as it enters water?
A. The light bends when it enters water due to its reflection.
B. The speed of light remains the same as it moves from air to water, causing the light to reflect.
C. The speed of light increases when it enters a different medium, but it doesn't bend.
D. The speed of light changes as it moves from air to water, causing the light to bend.
Answer:
D
Explanation:
Refraction is generally defined as the change in the direction of a wave as it travels from one medium to another. Light is a form of wave and light refraction is caused by a change in the speed of light as it moves from air to water, causing the light to bend in the process. The medium of travelling has to be transparent.
The change in the speed and direction is due to the variability in the refractive index of media. Light travels faster as it moves from a medium of higher refractive index to a medium of lower refractive index and vice versa.
The correct option is D.
Which layer is the lowest of the atmosphere?
Answer:
The Troposphere.
Explanation:
pls help I will mark as brain something
Answer:
Flora refers to the natural vegetation including plants, fungi, algae in a particular geographical region. Fauna refers to the animals life living in a particular geographical area or region.
During meiosis, homologous chromosomes exchange genetic material. This exchange of genetic material -
increases the genetic variation
increases the genetic variation
increases the haploid number to the diploid number
increases the haploid number to the diploid number
reduced the probability of mutations
reduced the probability of mutations
reduces the diploid number to the haploid number
reduces the diploid number to the haploid number
Answer:
Explanation:
No.4
Answer:
I believe this could be reduces the diploid number to the haploid number.
Explanation:
Hope this helps! :)
Color blindness is a recessive X-linked trait. A normal couple has a color-blind child. At least one member of the couple's families is colorblind, who is this most likely to be?a) the child's paternal grandmotherb) the child's paternal grandmother or grandfatherc) the child's maternal grandmotherd) the child's paternal grandfathere) the child's maternal grandfather
Answer:
c or e
Explanation:
The correct answer would be the child's maternal grandmother or grandfather.
For X-linked traits, only females can be carriers while males are either affected or totally free from the trait. This is because females have two X (XX) chromosomes while males have only one (XY).
Since the couple is normal, it means the father is free from color blindness. The only available option now is the mother and since she is phenotypically normal, it means that she is a carrier of the disease. She must have inherited the allele from either of her parents, but not from both. If she had inherited an affected X chromosome from each of her parents, she would have been phenotypically affected for color blindness.
Hence, the child's color-blind allele can only be traced back to either of the child's maternal grandmother or grandfather.
The correct option is c or e.
The member of the couple's family who is this most likely to be colorblind is the child's maternal grandfather.
An X-linked recessive inherited genetic trait is transmitted from parent to child through mutations in genes localized on the X chromosome.In males, X-linked recessive traits are always expressed because males contain only one X chromosome.In consequence, in this case, the mother should be a normal carrier of the disease/condition, thereby her dominant X-linked allele can mask the expression of the recessive (daltonic) allele, which is passed to the child from the maternal grandfather.In conclusion, the member of the couple's family who is this most likely to be colorblind is the child's maternal grandfather.
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What is wrong with this cell diagram ? (Giving brainliest)
Answer:
C
Explanation:
It has a round shape so obviously plant cell. You can see the vacuoles, mitochondria, and E.R., but it's missing its nucleus.
Answer:
D
Explanation:
A plant cell would have a cell wall to make the cell structured and more rectangular, so the other answer is incorrect. This is an animal cell. You can tell because there is no cell wall and the vacuoles are smaller (plant cells usually only have 1 large vacuole), and there are no chloroplasts. There is no nucleus pictured and since it is an animal cell, the cell doesn't need chloroplasts. That means that the answer is D.
Victor has been studying the vascular systems of plants. He wanted to find out if food coloring would travel up the stalk of celery faster if the temperature of the water increased. Victor set up his experiment with three cups of colored water at different temperatures, three equal sized celery stalks, and a stopwatch. Cup A was filled with colored water at 21 C. Cup B was filled with cold colored water at 4 C, and Cup C was filled with warm colored water at 30 C. One celery stalk was placed in each cup at the same time. Victor timed how long it took the colored water to travel to the leaves at the top of the celery stalk. He measured the time in minutes. What is the independent variable
Answer:
temperature
Explanation:
The independent variable would be the colored water at different temperatures.
The independent variables are changeable or controllable variables supplied directly by researchers in the course of experiments. They produce effects on the dependent variable and are thus referred to as the 'cause' variable. The dependent variables are referred to as the 'effect' variables because their values vary based on that of the independent variables.
In this case, the only controlled variable of all the variables supplied by Victor is the temperature of the colored water. Changing the temperature of the colored water is expected to have effects on the time it will take for the colored water to travel to up the stalk of celery. Hence, the temperature is considered as the independent variable while the time it takes for the colored water to travel to the leave would be the dependent variable.
What sequence elements could be looked for within the inserted sequence that would help place it in one of the three families?
Answer:
DNA transposons, viral-like transposable elements, and non-LTR retrotransposons
Explanation:
Transposable Elements (TEs) are genetic mobile elements that can change its position within a genome, thereby producing mutations at the genomic sites where they are inserted. According to their composition and structure, TEs can be divided into three main types: DNA transposons, viral-like transposable elements, and non-long terminal repeat (non-LTR) retrotransposons (also known as polyA retrotransposons). In the first place, DNA transposons are composed of conserved inverted repeat sequences at both ends of the element which are surrounded by target site duplications (TSDs). Moreover, viral-like TEs contain LTRs and they encode reverse transcriptase enzymes. Finally, non-LTR retrotransposons contain a poly(A) tail at the 3′ end, but they don't have inverted repeats.
Which of the following is in the order of increasing bond strength?
a. Hydrogen, ionic, covalent
b. Hydrogen, covalent, ionic
c. Ionic, hydrogen, covalent
d. Covalent, ionic, hydrogen
Answer:d. Covalent, ionic, hydrogen
Explanation:
Answer:
Covalent, ionic, hydrogen
what is this a picture of?
Answer:
I think a cell if not my bad
Explanation:
Answer:
A cell producing protein
Which is a type of star system?
dim stars
galaxies
wobbling stars
globular clusters
The type of star system is galaxies.
What is star system?Star system is a part of solar system that comprises of different types and shapes of stars each performing it function which orbit around each other and bound by gravitational force.
Therefore, The type of star system is galaxies
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The slow depolarization of the pacemaker cells is caused by the opening of the:_______.
Answer:
The slow depolarization of the pacemaker cells is caused by the opening of the non selective cation channels.
Explanation:
Pacemaker cells are specialized cardiac muscle cells with the task to create the rhythmic pulses that make the cardiac muscle contract properly, functioning as a whole and not as independent contractile cells.
One of the things that differentiate pacemaker cells from regular cardiomyocytes is that pacemaker cells slowly depolarize by themselves. This happens because when these cells are in phase 4, in a state of hyperpolarization, the 'funny current' appears to begin depolarizing the cell again.
Hyperpolarization usually occurs because there's an outflux of potassium ions (which makes the inside of the cell much more negative than the outside of the cell) but, in pacemaker cells, the membrane becomes less and less permeable to potassium, which ends up decreasing the outflux of this ion. Along with this change in potassium's electrical conductance, the funny current increases the permeability of sodium, which means that there's also a sodium influx happening at the same time, helping in the depolarization process.
This mixed sodium and potassium permeability is one of the key features of the funny current, and is possible thanks to the opening of non-selective cation channels in the membrane that allow the passing of any cation following their specific chemical gradients.
Think critically A restaurant owner wants to serve fresh-cut fruit. What factors might be considered in choosing a recipe and preparation method
Answer:
Explanation:
1.Oxidation- some fruit after cutting on exposure to air begin to oxidate this leads to a change of color, this color change could range from light brown to dark brown in some fruits such as apple this could make it unappealing to to the consumer.
2. Shelf life- How long can the fruits start after exposure to air before it begins to loose its taste assuming they are not consumed immediately. This have to considered in selecting fruits
3. Time- How long will it take to prepare and make the fruits ready, some fruits requires some thorough cleaning, professional cutting skill
if all will be available and will meet up the time required for the fruits to be served.
All this are some of the factors needed to be considered
Place the steps involved in burning coal to create electricity in the correct order.
Water boils, creating steam.
Coal is burned
Turbines generate electrical energy.
Moving steam turns turbines.
Answer and Explanation:
Coal is burned: Electrical Centrals burn coal with which they get enough heat. The coal might be pulverized to increase the effective combustion area. Water boils, creating steam. The heat generated by the burning coal is used to create water vapor that rises and moves turbines. This occurs when water passing through some tubes is heated by the hot gases coming from the burning coal, turning it into high-pressure steam. Moving steam turns turbines. The high-pressure steam is taken to turbines where it expands and moves the rotor which is the moving part of the turbines. Turbines generate electrical energy. The turbines are connected to a generator that transforms the energy produced by the rotor into electricity.Answer:
Coal is burned
Water boils, creating steam
Moving steams turns turbines
Turbines generate electrical energy
Can anyone pleaseeeee help me like please!!!!!!!!!! :(((
Answer:
I think its D
Explanation:
because the mitochondria makes energy and the cell wall lets things in and out of it
Answer:
D
In animal cells, the cell membrane allows for materials in and out of the cell, while the mitchondria uses nutrients to make energy (ATP) for the cell
Explanation:
To figure out how to eliminate answers you need to know what the functions of the cell wall and the mitchondria are.
The mitochondria is referred to as the power house of the cell meaning that it creates energy for the cell.
The cell wall allows things in and out and is the protector of the cell.
hope this helped and let me know if it was correct! <3
Why do you think people
often compare the
changes between
childhood to adulthood to
the butterfly's life cycle?
Answer:
Because the life cycle resembles to that of other organisms
1-EGG
2-LARVA
3-PUPA
4-ADULTHOOD
Explanation:
Which of the following is an example of a species adapting to changing
conditions in their ecosystem?
A. Amur leopard populations declining because of the spread of humans into their
habitat
B. Longer walrus" tusks because the oysters they eat burrow deeper into the sea floor
Answer:
b
Explanation:
their tusks allow them to get food which is an adaptation for survival
Answer:
The correct answer would be B.
Explanation:
B is the correct answer because the walrus's tusks gives them an advantage to capture the oysters that are deep in the sea floor.
Freshwater sponges are classified in which class?
Calcarea
Chordata
Hexactinellida
Demospongia
Answer:
fresh wtaer spknges are classified in Demospongiae
Uncontrolled cell growth in a person's body can restrict the normal functioning of the surrounding cells. This
situation is known as
O transcription
cancer
O genetic drift
on
O translation
Answer:
the uncontrolled growth of cells is known as cancer
