Answers
Answer:
Homologous chromosomes separate from each other during anaphase I of meiosis.
Explanation:
Meiosis is a specialized type of cell division that occurs in sexually reproducing organisms. It involves two rounds of cell division, known as meiosis I and meiosis II, which result in the formation of haploid gametes (sperm or eggs) with half the number of chromosomes as the parent cell.
During meiosis I, homologous chromosomes pair up and exchange genetic material in a process called crossing over. Then, during anaphase I, the homologous chromosomes separate from each other and migrate to opposite poles of the cell. This is followed by telophase I, cytokinesis, and the formation of two new cells, each with a haploid set of chromosomes.
In contrast, during meiosis II, the sister chromatids of each chromosome separate from each other and migrate to opposite poles of the cell, resulting in the formation of four haploid daughter cells.
Related Questions
DNA is one of the features common to all known forms of life; it
forms the protective outer membrane of cells.
is used to transfer information from parents to their offspring.
is used to obtain energy from the environment.
is used in sensing changes within the environment.
Answers
Answer: B: is used to transfer information from parents to their offspring.
Explanation: DNA is inherited from each parent by the process of reproduction. Reproduction is the process of forming a new individual to pass down the genetics by the process of fusion of the male and female gamete. DNA is passed from the mother in the egg. It is passed down from the father in the sperm. The DNA in these cells is haploid i.e., n. When they fertilize, it becomes 2n. This ensures that both parents' genetics are passed on without disturbing the chromosome number. It is essential to note that there is a lot of variation between brothers and sisters as well. This is due to the large variety of genetics available from both parents and their ancestors. All variations are not visible or dominant in the case of a person. They might be visible in one progeny and not in the next. The only case there is a similarity is the case of identical twins. On recombination, the genes from various previous distant relatives weaken.
Same thing happens with animals, too. That's how natural selection happens. Due to a change in the environment, animals with better traits to survive can pass those down to their offspring.
betweeen altitude versus average number of red blood cells which one is a dependent variable
Answers
Answer:
number of red blood cells
Explanation:
the number of red blood cells depend on what altitude you are at therefore its the dependant variable. altitudes is not dependant on anything so we say it's the independent variable
_____ energy is tapped from the heat of Earth.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Volcanic
Geothermal
Convection
Terra therma
Answers
Answer:
-- Geothermal energy is tapped from the heat of the Earth.
The frequency of purple pollen cones is 0.34 in a population of Virginia pine (Pinus virginiana). In the same population, the frequency of four needles per fascicle is 0.67.
If these two traits are independent, what is the probability that a single pine tree has both purple pollen cones and four needles per fascicle? (calculate to 2 decimals)
Answers
Answer: P(p and f) = 0.23
Explanation: The frequency of a specific trait is also the probability of that trait appearing in that population. So:
Probability of purple pollen cones: P(p) = 0.34
Probability of four needles per fascicle: P(f) = 0.67
Using multiplication rule:
P(p and f) = P(p)*P(f)
P(p and f) = 0.34*0.67
P(p and f) = 0.23
The probability of having both purple and four needles is 0.23
Why will individuals have brown eyes rather than a blue eyes?Question 6 options:a)
Brown eyes is a mutation.
b)
Blue eyes is recessive.
c)
Blue eyes is dominant.
Answers
Answer:People with brown eyes have a large amount of melanin in the iris, ... leading to blue eyes instead of brown in people with a polymorphism in ... result from mutations in genes involved in the production and storage of melanin. ... Heterochromia can be caused by genetic changes or by a problem during eye
Explanation:
I AM SORRY IF AM WRONG
B) blue eyes is recessive
Because if I remember correctly blue eyes are a mutation not brown.
2. For
Mass number -
Atomic number-
Na
Sodium
22.989 7492
-Symbol of the element
Atomic mass
how many protons the atom has? How many neutrons? How many electrons?
Answers
Answer:
Na
Protons = 11
Electrons = ( protons = electrons )
= ( 11 = 11 )
= 11
Neutrons = ( Mass index - protons )
= ( 23 - 11 )
= 12
Explanation:
please make my answer as brainelist
In the pillbug experiment, how many pill bugs did you need
Answers
10 pillbugs were needed in the Pillbug experiment to get good information. Thus, option (c) is the correct answer.
Pillbugs are categorized as terrestrial isopods and are in the crustacea family. Pill bugs are simple to acquire, to maintain, odourless and easy to handle. They make the perfect experimental subject.
The Pillbug experiment by McGraw Hill aims to understand how pillbugs behave in both damp and dry settings. The study is conducted by watching their behavior, taking into account how often they circle and spin.
The purpose of the Pillbug experiment is to determine if pillbugs, often known as roly-polys, prefer light or darkness. They are cold-blooded, slow-moving organisms whose surroundings regulate their body temperatures.
The complete question is:
In the Pillbug experiment, how many Pillbugs did you need to use to get good information for the experiment?
A. 100
B. 1
C. 10
D. 4
E. 5
Learn more about the Pillbug experiment here:
https://brainly.com/question/28072865
#SPJ9
Bile is formed by
a. sinusoidal endothelium
b. stromal cells
c. lymphocytes
d. (von) kupffer cells
e. hepatic cells (hepaticytes)
Answers
Answer:
E. hepatic cells (hepatocytes)
Explanation:
These cells are the ones that secrete bile acids, rest do not match the given description
These cells make up about ~70-80% of liver mass and are primary authority at producing bile for the body
Answer:
Bile is formed from (con) kupffer cells
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
Learn more about Atoms here:https://brainly.com/question/17545314
#SPJ1
In boiling water, water molecules move apart and escape tin the form of water vapor. The process is called __
Answers
Answer:
Evaporation is the process where water molecules separate and begin to vaporize. Evaporation can be caused by excessive heat to the water.
12 If pressure is applied to a rock until its volume is
reduced by one half, how does its new density
compare to its original density?
(1) It is half its original density.
(2) It is twice its original density.
(3) It is the same as its original density.
(4) It is one-third its original density.
a
0 1
02
O 3
Answers
Answer: The correct answer to the question is option 2
If pressure is applied to a rock until it's volume is reduced by one half how the new density compares to it's original density is ; THE NEW DENSITY IS TWICE IT'S ORIGINAL DENSITY.
Explanation: Density is defined as mass divided by volume,density increases with pressure and it's determined by spaces between atoms in the object being measured.
Density is directly proportional to Pressure,so when pressure increases, Density increases and when pressure decreases,density decreases.
Density is indirectly or inversely proportional to temperature. so when pressure and density increases, temperature remains constant.
This is applicable to the scenerio with the rock in the question,as the pressure on the rock is increasing,the density is increasing too.
Answer:
pjiohugiyftgvuihiojpk[';ojkhugtfhrvgbhjoik;lukgyjvbjknmk,['lk.
Explanation:
Describe the characteristics of P-waves, S-waves, Love waves and Rayleigh waves, and explain how they are similar and different.
Answers
Internal waves:
-P-waves: primary waves because they are the first to arrive at a seismograph. They are compressive-type waves and cross the planet via solid, gas, or liquid.
-S-waves: secondary waves. They are transversal-type and their vibration is perpendicular to their movement and propagation. They can't cross through the Earth's nucleus.
Superficial waves:
-L-waves: love waves. They travel above the Earth from side to side, as a result of the interference of multiple S-waves propagated on a superficial elastic layer.
-R-waves: Rayleigh waves, they're a superficial acoustic type of wave that travels along the surface of solids.
3. Explain how the Calvin Cycle builds sugar molecules.
=
Answers
Answer: In the Calvin cycle, carbon atoms from CO2start text, C, O, end text, start subscript, 2, end subscript are fixed (incorporated into organic molecules) and used to build three-carbon sugars. This process is fueled by, and dependent on, ATP and NADPH from the light reactions.
Explanation:
Each turn of the Calvin cycle “fixes” one molecule of carbon that can be used to make sugar. It takes three turns of the Calvin cycle to create one molecule of glyceraldehyde-3 phosphate. After six turns of the Calvin cycle, two molecules of glyceraldehyde-3 phosphate can be combined to make a glucose molecule
inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Answers
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
https://brainly.com/question/32239495
#SPJ8
(HELP FAST) A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
Answers
"The derived shared characteristic 'Terrestrial during all stages' should be placed at the base of the tree diagram."
SupThe characteristic "Terrestrial during all stages" is a shared characteristic among all five species being compared in the branching tree diagram. This means that it is a characteristic that all of these species have in common, and therefore it is likely that it was present in their common ancestor.
Since the base of the tree represents the common ancestor of the species being compared, it makes sense to place this characteristic at the base of the tree. This also helps to show that this characteristic is a defining trait of the group of species being compared and that it has been present in their lineage since their common ancestor.
To learn more about Terrestrial follow the link:
https://brainly.com/question/28182289
#SPJ1
What important function can elodea cells perform that onion cells cannot?'
Answers
Elodea cells is capable of photosynthesis, while onion cells cannot
difference between elodea cells and onion cellsElodea cells and the plant itself serve as producers in natural settings because they are photosynthetic plants. Plants use light energy to transform carbon dioxide and water into sugars and oxygen through a process known as photosynthesis. It is the primary pathway for energy to enter an ecosystem.
Elodea cells photosynthesize because they develop in sunlight and are frequently categorized as waterweeds.
Onions cells, on the other hand, grow below the surface, therefore their cells cannot photosynthesize. Additionally, elodea cells have a vacuole that is filled with cell sap, a fluid that is mostly composed of water.
Conclusively, Elodea cells are structurally distinct from onion cells. Elodea cells are arranged in two layers, one of which is long and narrow and the other of which is short and wide. The cells of an onion are bigger and arranged in a single layer.
Learn more about elodea cells from;
brainly.com/question/3547267
#SPJ1
An anatomy and physiology student, is asked to breathe through a 3-foot long glass tube. What effect does this action have on his blood pH, urine pH, and respiratory rate?
Answers
Answer:
If a student breathes through a 3 feet long glass tube it will affect the physiology of the student in various ways such as a change in blood pH, urine pH, and rate of respiration.
It will result in an increase in the normal volume area of the trachea and bronchi as it is a closed system as a face mask. The increase in this dead volume are will result in double the volume of CO2. Decrease the pH of the blood.
When asked to breathe through 3-foot long glass tube there would reduced oxygen available to the tissue (hypoxia) which had the following effects discussed below.
Hypoxia occurs when there is reduced oxygen available to the body tissues.
When asked to breathe through a 3-foot long glass tube, it can lead to hypoxia.
The effect of hypoxia include the following:
Blood pH: Due to increase in anaerobic respiration in the tissues, lactate production increases leading to a fall in blood pH. Urine pH: Hypoxia leads to increase in renal sodium excretion which helps acid-base balance of the body fluid. Respiratory rate: There is significant increase in respiratory rate to compensate for the decreased tissue oxygen levels.Learn more here:
https://brainly.com/question/13870938
What is communal defense?
A. The group takes care of the old and young.
B. The group can defend each other and gang up on a predator when it comes to attack.
C. The group can leave behind those that harm the group.
D. The group shares food with each other.
Answers
Answer:
B
Explanation:
The group can defend each other and gang up on a predator when it comes to attack
Answer: B. The group can defend each other and gang up on a predator when it comes to attack.
Read each description below and determine whether or not it describes a function or property of cerebrospinal fluid. Identify which of the followings are true or false.
a. Produces antibodies in response to antigen exposure in the brain tissue
b. Found in the ventricles of the heart and brain
c. Produced by the choroid plexus
d. Blocks blood toxins from brain tissue
e. Prevents concussions
f. Cardiac muscle contractions influence the flow of CSF
g. Compared to levels in the blood plasma, the CSF is higher in glucose.
h. Effectively decreases the brain's weight
i. Supplies oxygen to the brain tissue
j. Maintains the concentration of glycine surrounding the brain
Answers
Answer:
Produced by the choroid plexus -T.This is the major secretion site.It is also produced in smaller quantities in the interstitial compartment.
Blocks blood toxins from brain tissue-F, that is the job of the blood brain barrier(BBB).
Supplies oxygen to the brain tissue-T.This gas is dissolved in the CSF together with CO2 for distribution among nervous tissues by the CSF
Maintains the concentration of glycine surrounding the brain-T
Found in the ventricles of the heart and brain-False,it does not reach the heart ventricles.This are occupied by blood.
Prevents concussions-T
Produces antibodies in response to antigen exposure in the brain tissue-False.These are produced by the B-cells, not by in the CSF,based on the specif antigen stimulation.
Effectively decreases the brain's weight-T It reduces the weight of the brain.This is done by the buoyancy it provided for the brain.
Compared to levels in the blood plasma, the CSF is higher in glucose-F.This is wrong, the glucose of the blood plasma is higher.But equal sodium ion,more chloride in CSF, and less protein.It s levels is a relefection of blood glucose.Although it may lag 2-4hrs in the CSF.
It prevents concussion,(T)and and the contraction of cardiac muscles propels its movement(T).
Explanation:
The following growth pattern occurs under ideal conditions where organisms have no competition for space, mates or resources.
options
1.Logistical Growth
2.Linear Growth
3.Exponential Growth
Answers
Logistical growth pattern occurs under ideal conditions where organisms have no competition for space, mates or resources.
What do you mean by logistical growth?A logistic function or logistic curve is a common S-shaped curve with equation where x_{0}, the x value of the sigmoid's midpoint; L, the supremum of the values of the function; k, the logistic growth rate or steepness of the curve.
Logistic growth takes place when a population's per capita growth rate decreases as population size approaches a maximum imposed by limited resources, the carrying capacity( K).
Logistic population growth occurs when the growth rate decreases as the population reaches carrying capacity. Carrying capacity is the maximum number of individuals in a population that the environment can support.
Learn more about logistical growth:
https://brainly.com/question/29765933
#SPJ1
If a man with long eyelashes (EE) marries a woman with long eyelashes (Ee), what
are the possible genotypes and phenotypes of their children?
Answers
Answer:
EE, Ee
Explanation:
A zoo has a male and a female animal that look that look very alike. They put them in the same enclosure to see if they will breed.
a) Suggest why the zoo think the animals may be the same species? (1 Mark)
b) Describe what the zoo would expect to happen if the animals were of the same species. (1 Mark)
c) Describe another method that the zoo could use to check if the animals were of the same species. Explain your answer. (2 Marks)
Answers
Golgi apparatus is involved in processing of:
a. Salivary amylase
b. Glucokinase
c. Phenylalanine hydroxylase
d. EcoR1
Answers
Answer:
Explanation:
the Golgi apparatus is involved in the processing of :
salivary amylase
this is because the GC is involved in the secretion of proteins and salivary amylase is protein secreted from the salivary glands
I need help in a test pls 35 points
Answers
Answer:
straight from desmos, make linear positive line with x intercept at 2 and y intercept at -1.
Explanation:
Please Hurry). The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct).
Answers
Answer:
1) The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs 2)Cellular respiration breaks down glucose into water and carbon dioxide producing 38 net ATP molecules. ATP is the energy containing nucleotide in cells while the energy found in glucose is used to make ATP. The key difference between glucose and ATP is the composition of these two molecules 3)The basic idea of a hypothesis is that there is no pre-determined outcome. ... A key function in this step in the scientific method is deriving predictions from the hypotheses about the results of future experiments, and then performing those experiments to see whether they support the predictions
Answer:
Explanation:
1) Well sunlight is very important to each of us because not only it gives us warmth, it also gives us vitamin D, which is very essential for our body.
2) Glucose is the energy that every living being absorbs and stores in their body. ATP is the energy that is ready to be used from every living being.
3) The hypothesis is a very important role in a scientific investigation, because it helps us suppose the experiment that we are about to realize and it's a possible answer to our scientific question.
HELP PLZ
DESCRIBE HOW THE NEEDS OF CELLS ARE MET BY TISSUES AND ORGANS. Give an example
Answers
Answer:
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
Explanation:
Stanley wants to do a research project on the impact of using paper bags versus plastic bags. Which question could he use as a research question to guide his search for information?(1 point
A Do more people use paper or plastic bags when shopping?
B Are plastic bags more popular than paper bags?
C Are paper bags less expensive than plastic bags?
D Do paper bags cause less pollution than plastic bags?
Answers
The most appropriate research question that Stanley could use to guide his search for information on the impact of using paper bags versus plastic bags is: Do paper bags cause less pollution than plastic bags? Therefore the correct option is option D.
This question directly addresses the environmental effect of paper and plastic bags, which is a major point of contention in the argument over which type of bag to use.
It is also a focused and specific research question that can help Stanley direct his research and draw clear conclusions based on the evidence he discovers. Therefore the correct option is option D.
For such more question on plastic bags:
https://brainly.com/question/2569422
#SPJ11
Velocity is...
The change of an objects mass
The change of an object's position
The change of an object's position over a period of time
The change of an object's speed
Answers
Answer: is C or D I think
the speed of something in a given direction.
"the velocities of the emitted particles"
Explanation:
Hope this helps!
Why is the structure of the neuron up to 1 meter long?
Answers
Answer:
The cell body of a motor neuron is approximately 100 microns in diameter and as you now know. the axon is about 1 meter (1,000) millimeter in length.
Explanation:
So the axon of a motor neuron is 10,000 times as long as the cell body is wide.
Which best defines soil? (1 point)
Responses
Soil is made up of minerals, air, water, and humus.
Soil is made up of minerals, air, water, and humus.
Soil is made of rock and dirt.
Soil is made of rock and dirt.
Soil is made of natural materials that were never living.
Soil is made of natural materials that were never living.
The soil is dark and brown.
will give brainliest
Answers
Soil is best defined as a mixture of minerals, air, water, and humus. So the right option is Soil is made up of minerals, air, water, and humus.
Soil is a mixture of minerals, air, water, and organic matter that provides the necessary nutrients and physical support for plants to grow. It is a living ecosystem that is home to millions of microorganisms, fungi, and other organisms that contribute to its health and productivity.
The minerals in soil come from the breakdown of rocks and other geological materials. Air and water are essential for soil structure and nutrient transport. Humus, or organic matter, is made up of dead plant and animal material that decomposes over time, adding nutrients and improving soil structure.
Soil is an important resource that plays a crucial role in agriculture, forestry, and environmental sustainability. It provides a habitat for many plant and animal species, helps regulate the Earth's climate, and plays a role in the carbon cycle.
However, soil can be degraded through erosion, overuse, and pollution. It is important to protect and manage soil resources to ensure their continued health and productivity for future generations.
For more questions on: minerals
https://brainly.com/question/27737827
#SPJ11