Which letter in Figure 1 represents meiosis? Why?
Which letter in Figure 1 represents mitosis? Why?
Answers
The letter D in Figure 1 represents meiosis, while letter A represents mitosis. Meiosis is a reductional cell division.
Mitosis is a type of cell division where a parent cell divides to produce two genetically identical daughter cells (in this case, diploid cells).
Meiosis is a reductional cell division where a parent cell divides twice to produce four daughter cells having half of the genetic material.
Meiosis occurs in germinal cells, while mitosis occurs in somatic (body) cells.
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Related Questions
Describe the process of cell division in a plant cell.
Answers
Answer:
Cytokinesis in a plant cell: the cell plate forms down the middle of the cell, creating a new wall that partitions it in two. Cytokinesis, the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis.
Explanation:
How do Demetri's results show that digestive enzymes are crucial to maintaining homeostasis inside the body?
Answers
In addition to breaking down food so that the nutrients may be absorbed, enzymes also generate vitamins like biotin and vitamin K and protect the body from dangerous microorganisms.
What is homeostasis?A biological system's ability to self-regulate and maintain stability while responding to shifting environmental factors is known as homeostasis.
The body needs a steady supply of nutrients from food that has been digested. They are crucial for maintaining health and carrying out bodily tasks. The body may absorb and use food that has been broken down by the digestive system.
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What are the states of energy? List the Laws of Thermodynamics.
Answers
Answer:
The laws of thermodynamics define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium.
Explanation:
What are the states of energy? List the Laws of Thermodynamics.
Answer: The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases.
Paragraph: Discuss the three laws of thermodynamics.
Key Points
The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system.
The second law of thermodynamics states that the entropy of any isolated system always increases.
The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.
Terms
absolute zeroThe lowest temperature that is theoretically possible.
entropyA thermodynamic property that is the measure of a system’s thermal energy per unit of temperature that is unavailable for doing useful work.
System or Surroundings
In order to avoid confusion, scientists discuss thermodynamic values in reference to a system and its surroundings. Everything that is not a part of the system constitutes its surroundings. The system and surroundings are separated by a boundary. For example, if the system is one mole of a gas in a container, then the boundary is simply the inner wall of the container itself. Everything outside of the boundary is considered the surroundings, which would include the container itself.
The boundary must be clearly defined, so one can clearly say whether a given part of the world is in the system or in the surroundings. If matter is not able to pass across the boundary, then the system is said to be closed; otherwise, it is open. A closed system may still exchange energy with the surroundings unless the system is an isolated one, in which case neither matter nor energy can pass across the boundary.
A Thermodynamic SystemA diagram of a thermodynamic system
The First Law of Thermodynamics
The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. For example, turning on a light would seem to produce energy; however, it is electrical energy that is converted.
A way of expressing the first law of thermodynamics is that any change in the internal energy (∆E) of a system is given by the sum of the heat (q) that flows across its boundaries and the work (w) done on the system by the surroundings:
Δ
E
=
q
+
w
Δ
E
=
q
+
w
This law says that there are two kinds of processes, heat and work, that can lead to a change in the internal energy of a system. Since both heat and work can be measured and quantified, this is the same as saying that any change in the energy of a system must result in a corresponding change in the energy of the surroundings outside the system. In other words, energy cannot be created or destroyed. If heat flows into a system or the surroundings do work on it, the internal energy increases and the sign of q and w are positive. Conversely, heat flow out of the system or work done by the system (on the surroundings) will be at the expense of the internal energy, and q and w will therefore be negative.
The Second Law of Thermodynamics
The second law of thermodynamics says that the entropy of any isolated system always increases. Isolated systems spontaneously evolve towards thermal equilibrium—the state of maximum entropy of the system. More simply put: the entropy of the universe (the ultimate isolated system) only increases and never decreases.
A simple way to think of the second law of thermodynamics is that a room, if not cleaned and tidied, will invariably become more messy and disorderly with time – regardless of how careful one is to keep it clean. When the room is cleaned, its entropy decreases, but the effort to clean it has resulted in an increase in entropy outside the room that exceeds the entropy lost.
The Third Law of Thermodynamics
The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero. The entropy of a system at absolute zero is typically zero, and in all cases is determined only by the number of different ground states it has. Specifically, the entropy of a pure crystalline substance (perfect order) at absolute zero temperature is zero. This statement holds true if the perfect crystal has only one state with minimum energy.
What are three main ways that cells maintain control over division
Answers
Answer:
Well if cells didn't have any control over what they do, the cells in the different stages of mitosis could ignite a genetic mutation of DNA and how the cells could react to different forms of treatment.
Explanation:
Hope this helps.
Answer:
the growth and repair of tissues in multicellular animals,the formation of gametes for reproduction in multicellular animals. the reproduction of an entire unicellular organism,Explanation:
how did the invention of the microscope contribute to our understanding of the cells?
Answers
Answer:
With the development and improvement of the light microscope, the theory created by Sir Robert Hooke that organisms would be made of cells was confirmed as scientist were able to actually see cells in tissues placed under the microscope.
Explanation:
what is the highest temperature a human can survive
Answers
Answer:
The highest temperature a human can survive is 108.14 degree Fahrenheit or 42.3 degree Celsius
Explanation:
A higher temperature may denature proteins and cause irreparable damage to brain.
Describe a time when you had to approach a complex problem by breaking it down into smaller parts that were easier to understand. Why is this type of approach helpful?
Answers
Answer
During a summer camping trip, my family struggled to set up our tent. No matter how hard we tried, the tent wouldn’t stay up. So, we decided to break down the entire process. First, we identified and labeled each of the parts we found in the tent bag, including the meshes, poles, and stakes. Next, we framed and raised the tent by inserting the poles into the mesh. Finally, we staked the tent to the ground to secure it. Breaking down a product or process can help you understand the process better.
Explanation:
Sample Answer
Approaching a Complex Problem: When I was working on a software development project, I encountered a complex coding issue. Instead of tackling the entire problem at once, I broke it down into smaller tasks, focusing on each component separately before integrating them.
During the software development project, I encountered a challenging problem that required careful consideration and problem-solving. Rather than attempting to address the entire problem in one go, I decided to apply a divide-and-conquer approach. I broke the problem down into smaller, manageable tasks that each addressed a specific aspect of the problem.
By approaching the problem this way, I was able to focus on understanding and solving each individual task more effectively. I researched and brainstormed solutions for each smaller part, ensuring that I fully comprehended the underlying concepts and challenges. Once I had solutions for each smaller task, I started integrating them to address the larger problem as a whole.
This type of approach was helpful for several reasons:
Reduced Complexity: Breaking down a complex problem into smaller tasks makes it less overwhelming. Each task becomes more digestible and manageable, allowing for a clearer understanding of its intricacies.Focused Problem-Solving: Addressing smaller components one at a time enables a more focused and targeted problem-solving process. It allows for a deeper exploration of each aspect, leading to more effective solutions.Clear Progress Tracking: Completing each smaller task provides a sense of accomplishment and progress. This motivation encourages continued work on the problem and boosts overall productivity.Enhanced Collaboration: When working in a team, breaking down a complex problem facilitates collaboration. Team members can tackle different components concurrently, leveraging their strengths and expertise.Improved Decision-Making: Analyzing each smaller part can reveal insights and nuances that might be overlooked when trying to solve the entire problem at once. This leads to well-informed decision-making.In conclusion, breaking down a complex problem into smaller parts is a strategic approach that promotes deeper understanding, effective problem-solving, and manageable progress. It helps manage the complexity, aids in making informed decisions, and boosts overall success in addressing challenging issues.
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Give an example of how water acting as a solvent is important for living organisms.
Answers
Answer:Water acts as a solvent of carbon dioxide excreted from tissues, in blood and helps in regulating pH (because it forms carbonic acid that lowers pH when it tends to get higher). Blood pH should be maintained at about 7.4. One major reason is that the structure of protein is dependent ton pH because pH determines its ionization hence also affecting the charges and interaction between side groups of amino acids. A change in pH may, therefore, denature proteins and negatively affect cellular functions.
Explanation: i took biology
Answer:
water is important for the following reasons
Explanation:
for drinking
for bathing
for entertainment purpose
for irrigation
for hypower electricity
i hope you got answer
i got it through social
Which substance cannot be broken down into simpler substances?
Answers
Answer:
A Elements
Explanation:
Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.
Which statement best explains why these siblings are genetically different from each other?
Answers
Answer:
Only one chromosome from each pair randomly passed to the s*x cells during meiosis and leads to differences between the siblings.
Organ system:Put the following in order from smallest to largest:
Cells
Organs
Tissues
Answers
Cells, tissues, organs
Answer:
Cell, Tissue, Organ
Explanation:
which one of the following items would never appear on a cash budget? group of answer choices office salaries expense interest expense depreciation expense travel expense
Answers
Answer:
depreciation expense
Explanation:
Which of the following statements does NOT describe a river delta?
A. sediment that builds up where a river meets a larger body of water
B. some are muddy and unstable; others are so big crops can grow on them
C. earth scooped out that can form a lake or deep valley
D.where a flowing river empties its load at the mouth of a river
Answers
Answer:
C: Earth scooped out that can form a lake or deep valley
Answer:
letter C po Ang answer
Explanation:
please rate brain less
during the process of transcription in a eukaryote
Answers
Which population would most likely survive in a major environmental change?
A. G
B. F
C. H
D. J
Answers
Answer:
H
Explanation:
It has the most variation
Hope that helps
how can carbon dioxide limit the rate of photosynthesis
Answers
Answer:
An increased level of carbon dioxide leads to a higher rate of photosynthesis when compared to the lower carbon dioxide level. This shows that the carbon dioxide level has an effect and is now limiting the rate of photosynthesis.
Explanation:
what organelle acts like a whip to move the entire cell
Answers
Answer: Flagella
Flagella are longer, whiplike projections that propel cells. Both cilia and flagella are composed of microtubules. They move cells through their watery environments. Cilia also move substances along the surface of the cell.
If ATP production is blocked, decreased transport of material across a membrane occurs. Which type of transport would be affected
Answers
Answer: Active transport
Explanation:
This transports requires ATP because the material would be going against the gradient (Low to high concentration). Since this is not the "normal" tranportation (High to Low concentration) it therefore needs ATP. Without ATP it cannot do it's transportation.
what is it called when they check cells for cancer
Answers
Answer:
screening
Explanation:
Write a title for each step of primary
succession
Answers
Answer:
The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
11.A tomato plant has 12 chromosomes in each egg/sperm cell. How many chromosomes do each
of their somatic cells have?
Answers
Answer:
12 chromosomes
Explanation:
hope its attachments
The lake ecosystem where this food chain takes place is hosting a new fishing tournament. It is expected to be the largest fishing tournament in the state. The goal is to catch as many bass as you can over a 3-day period. What would be the effect on the food chain due to the fishing tournament
Answers
Answer:
The sunfish population should grow
Explanation:
Cuz me smort
why does exposure to high temperatures cause an enzyme to lose its biological properties?
Answers
Answer:
Shape of active site changes that's why
Enzymes are affected by temperature. So, as temperature increases, enzymes activities also increases, till optimum temperature is reached. If it goes above the optimum temp, the enzymes becomes denatured or can't function anymore due to change in its active site.
A community in which populations of plants and animals remain stable and exist in
balance with each other and the environment
Answers
Answer:
ecological community
Explanation:
A climax community is the final stage of succesion
explain why a leaf cannot be tested for starch by adding iodine solution directly
Answers
answer.
waxy cuticle covering the leaves that prevents the penetration of iodine in the leave cells.
Can someone please help me with this asap it would mean a lot
Answers
Answer:
Explanation:
minerals cannot be gas or liquids. last one “They can be liquid, solid, or gas. “
69. Plants transform energy from the sun
into
A nuclear energy
B chemical energy.
C visible light.
D steam.
Answers
Answer:
B. chemical energy
Explanation:
Summary about DNA , Genes , Traits , Chromosomes. (Explain & let me know about all 4 words. Summarize all these words.) Write about how all 4 things work together.
Answers
Answer:
Genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus. And a trait is a gene-determined characteristic.
PLEASE IN DESPERATE NEED OF HELP!
Cell Division Virtual Lab Activity
Instructions: The Virtual Cell Division Lab is on the lesson assessment page. On the image, it says “Click Anywhere to Start.” Follow the instructions as you move through the lab. The lab activity will keep count of your data on the right, and you can record this into the data table.
Title: Cell cycle
Objective(s):
Hypothesis:
Variables:
Data:
Record the number of cells you observed in the lab activity.
Stages
Number of Cells
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Observations:
Record any observations about the cells you observed. What does the cell look like for each stage? What is a distinguishing visible feature of each stage of the cell cycle?
Stages
Description of Cell
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Data Analysis:
Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage
Part 2: Using your percentages in part 1, create a graph that represents the time spent in each stage of the cell cycle.
Insert Chart [Hint: don’t forget to consider the relationship between your data and the type of chart to best represent your data]
Conclusion:
Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:
Was your hypothesis correct? Why or why not? Be sure to include evidence from the data you collected to support your conclusion.
Based on your data, what can you infer about the length of time spent in each stage of the cell cycle?
What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.
Questions:
Using what you have learned in the lesson and the virtual lab activity, answer the following questions in complete sentences.
What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?
If your observation had not been restricted to the tip of the onion root, how would the results be different?
Answers
The distinguishing visible features of each stage of the cell cycle include chromosome condensation, mitotic spindle, equatorial plate and formation of two cells.
What is the cell cycle?The cell cycle is a series of well-defined steps in the life of a cell that begins with cell growth and end with its division.
The cell division has a series of steps that may be classified according to the phenomena that occur in these phases.
For example, chromosomes condense during the first stage of cell division (prophase), where they migrate to the equatorial plate at metaphase.
In conclusion, the distinguishing visible features of each stage of the cell cycle include chromosome condensation, mitotic spindle, equatorial plate and formation of two cells.
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What 3 factors influence the rate of photosynthesis?