The statement that describes the way the paramecium reproduces asexually is as follows: it happens by cell division that include mitosis (option A).
What is asexual reproduction?Asexual reproduction is one of the two types of reproduction that involves neither meiosis nor fusion of gametes.
This means that in asexual reproduction, new offsprings are produced by a single parent. The new individuals produced are genetically and physically identical to each other i.e., they are the clones of their parents.
This is possible because the single parent cell divides mitotically to produce identical daughter cells.
Therefore, option A is correct regarding the way paramecium reproduces asexually.
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Please, someone, help me with this asap!
Observe the cut ends of the flatworms using the hand lens or the dissection microscope immediately after cutting.
What do you see?
Are there distinct differences between the two ends?
Observe the cut ends of the flatworms over a period of several days. Do the flatworm halves continue to exhibit the same degree of difference that was seen right after they were cut in two?
What kinds of changes occur in the flatworms as they recover from having been cut in two?
The above question requires a personal answer about your experience with cutting flatworms. I can't tell you what you saw in this cut, but I'll show you what happens when it occurs.
First of all, you must understand that flatworms are worms with a great capacity for cell regeneration even if several pieces have been cut.
In this case, when a flatworm is cut in half, we can see the following events happen:
At the moment of cutting, the two ends of the flatworm body are equally shaped and are straight ends, without deformations.The ends will not be different if the cut is done accurately, but it may differ slightly.After several days, the ends will present some deformations and will lose the straight shape caused by the blade.Deformations are extremely similar and change similarly.When recovering from the cuts, each side of the flatworm body formed a new flatworm and they are no different, they are the same and they are completely recovered.This is because the cellular regeneration of flatworms is very fast and allows any part of the flatworm's body to create exactly the same beings, as they have the same genetic makeup.
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Crime-scene work often involves obtaining a DNA sample from a drop of blood to help identify persons who may have been involved. Frequently, the size of the DNA sample is extremely small, too small for easy analysis. Which of the following laboratory procedures could criminologists use to amplify the amount of DNA present?
A: Cloning and gel electrophoresis
B: Cloning and polymerase chain reaction (PCR)
C: DNA splicing and polymerase chain reaction (PCR)
D: Vector amplification and DNA splicing
Amplification of DNA is a very useful tool in the study of the human genome. DNA amplification ensures the production of multiple copies of the needed segment.
Criminologists can use Cloning and PCR to amplify the amount of DNA present...
Cloning involves creating identical copies of a particular DNA segment in study. Then amplification of the DNA using polymerase chain reaction will aid in amplifying and producing thousands of these copies of short targeted segments in minutes. This tool is very useful in ensuring the multiplication of that particular targeted sequence for analysis.Learn more about PCR: https://brainly.com/question/20757028
An organ can be defined as:
A - a group of cells of one type that has a function
B - a group of several different cell types, each type working together
C - a group of tissues that are located together that have unrelated functions
D - part of a system and therefore does not have a function of its own
Answer:
a group of several different cell type each type working together
Compare 41 Calories to 410 kcal (1 kcal = 1,000 calories). (1 point)
O 41 Calories is greater than 410 kcal
O 41 Calories is equal to 410 kcal
41 Calories is less than 410 kcal
It is not possible to compare these two values
From the calculation, we can deduce that 41 Calories is less than 410 kcal.
Given the following data:
Energy in calories = 41 CaloriesEnergy in kcal = 410 kcalTo compare 41 Calories to 410 kcal, we would simply convert the given values to the same base values:
Hence, we would make Calories the base value by converting the value in kcal to Calories as follows:
Conversion:
1000 Calories = 1 kcal
41 Calories = X kcal
Cross-multiplying, we have:
[tex]1000X =41\\\\X=\frac{41}{1000}[/tex]
X = 0.041 kcal.
From the calculation, we can deduce that 41 Calories is less than 410 kcal.
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Answer: 41 Calories is less than 410 kcal
Explanation: I took the test and passed
relationship between enzymes and macromolecules
Answer:
Each macromolecule is broken down by a specific enzyme. For instance, carbohydrates are broken down by amylase, sucrase, lactase, or maltase. Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. ... Breakdown of these macromolecules provides energy for cellular activities.
Which macromolecule sends messages?
Answer:
Proteins is a macromolecule that helps to send signals
What does it mean when we say that replication is a Semi-Conservative process?
Answer:
Semiconservative replication describes the mechanism of DNA replication in all known cells. ... This process is known as semi-conservative replication because two copies of the original DNA molecule are produced, each copy conserving (replicating) the information from one half of the original DNA molecule.
who developed a theory of evolution identical to darwin’s?
Answer:
Alfred Wallace
Explanation:
what are the similarities between this activity and actual mitosis
The DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.
What is mitosis?Mitosis is defined as the cell-division process in which the chromosomes multiply and are equally distributed between the two daughter cells. Prophase, Prometaphase, Metaphase, Anaphase, and Telophase are the five stages that make up mitosis. Meiosis is defined as a process by which a single cell undergoes two divisions, resulting in four cells with half the original genetic material.
Cell division occurs during meiosis as well as mitosis. The M-phase of the cell cycle is where both processes take place. The prophase, metaphase, anaphase, and telophase stages are typical for both cycles. DNA synthesis occurs during both cycles. A common goal of meiosis and mitosis is the division of the nucleus and its DNA into two daughter cells.
Thus, the DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.
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Why are proteins not found in the proximal convulated tubule
Someone plz help me :(
Answer:
B they are very tiny
Explanation:
Thats why you have to use a microscope! (love you av btw) Nezukooo!
Answer:
it might be B or C
Explanation:
if you need two answers B and C
if you need one answer B
there you go fwend
You touch a hot pan when cooking. List out the steps, in detail, of the nervous pathway of the reflex that occurs. Include any sensory organs involved and the action of the reflex.
what is mimicry in biology
Answer:
mimicry, in biology, phenomenon characterized by the superficial resemblance of two or more organisms that are not closely related taxonomically. This resemblance confers an advantage—such as protection from predation—upon one or both organisms by which the organisms deceive the animate agent of natural selection.
Explanation:
in what generation does this population reach its carrying capacity
Answer:
The logistic population growth happens as the growth rate declines as the population exceeds the carrying power. The highest number of people in a community that the ecosystem can sustain is carrying capacity.
Explanation:
A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
What is carrying capacity?The carrying capacity of a population is the maximum number of individuals that can be supported by a particular environment over a given time period. A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
For example, if a population of animals is introduced to a new habitat with abundant resources, it may be able to grow rapidly and reach its carrying capacity relatively quickly. On the other hand, if the population is facing competition from other species or is subjected to predation or other limiting factors, it may take longer for the population to reach its carrying capacity.
It's important to note that the carrying capacity of a population is not a fixed value, and it can change over time due to changes in the environment or the population's own characteristics. For example, if the population grows to a size that exceeds the carrying capacity of its environment, it may begin to experience negative impacts such as resource depletion, disease outbreaks, or other factors that can reduce its size and bring it back down to the carrying capacity.
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Without land regulations to protect rainforests, and continues to be destroyed using slash and burn methods Which environmental impact of rainforest deforestation makes rainforest species less resilient to
change?
Increased fire and drought
Increased pollution
Displaced inbes
Habitat fragmentation
Answer:
Increased pollution is your answer!
Explanation:
Increased pollution is your answer because:
1. ⇒ Burning of mostly anything creats, and all the materials in the forest are one of those materials that will create smoke. And smoke is made out of carbon dioxide, and other poisonous gases that are very bad for our atmosphere.
2. ⇒ The damage from the fire will also cause a lot of damage to the trees and plants. That is very bad because trees are very important for our environment, in their leaves, they have a chemical called chlorophyll, this chlorophyll absorbs sunlight and turns it into oxygen. Not only sunlight is needed, there is also, water, nutrients needed.
I hope I could help you today! Thanks!
Have a great day studying!
What is the measure of dissolved solids in the water?
2. What do you notice about the cellular respiration and
photosynthesis equations?
Answer:
Photosynthesis and cellular respiration are connected through an important relationship. ... Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O. Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O
Explanation:
Section 3: For at least one of the sub-problems, propose two solutions based on the information from the lesson and your additional research. In the rationale column, explain how your solution restores the stability and biodiversity of your selected ecosystem.
Removal of invasive species and growing more vegetation can restore the stability and biodiversity of ecosystem.
These two solutions restores the stability and biodiversity of the selected ecosystem because invasive species can capture more resources as compared to local species which leads to the extinction of local species.
While on the other hand, growing more vegetation provides more food to the organisms which ultimately increases the biodiversity of the ecosystem so we can conclude that removal of invasive species and growing more vegetation are the solutions to bring ecosystem in a stable condition.
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Which hormone is responsible for the development of the male secondary sex characteristics? estrogen progestin progesterone testosterone.
Answer:
It is Testosterone
Explanation:
The hormone responsible for the development of the male secondary sex characteristics is testosterone. Hence option D is correct.
What is testosterone?Testosterone is a hormone primarily produced in the testes of males and to a lesser extent in the ovaries of females and the adrenal glands of both sexes. It is an androgen, or a hormone that promotes the development of male characteristics.
Testosterone plays a crucial role in the development of male reproductive tissues, such as the testes and prostate, as well as in the growth of muscle mass and bone density.
It is also responsible for the development of secondary sex characteristics in males, such as facial hair growth, a deepening of the voice, and the growth of Adam's apple. Testosterone also regulates sex drive (libido) and sperm production.
In females, testosterone is produced in smaller amounts and helps regulate the menstrual cycle and promote bone density.
An imbalance of testosterone levels in either males or females can lead to various health issues, including infertility, osteoporosis, and disorders of sexual development.
Hence option D testosterone is correct.
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Together, erosion and deposition help shape sand dunes, ____ and deltas.
Together, erosion and deposition help shape sand dunes, canyons, and deltas.
nterphase lasts for ________ of a cell's life.
Answer: 12-24 hours
Explanation: Interphase generally lasts at least 12 to 24 hours in mammalian tissue. During this period, the cell is constantly synthesizing RNA, producing protein and growing in size.
Organelles in prokaryotic cells include the
(a) mitochondria.
(b) cytoskeleton.
(c) Golgi complex.
(d) none of the above
Answer: actually (d) none of the above
active transport moves mineral ions into root hair cells through cell membrane proteins. Explain how protein molecules move ions across a membrane during this process. (3marks)
Explanation:
Small and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage.
Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients.
Which two claims about cats are based on scientific way of knowing
Answer:
First claim '' cats are very smart animal''.
Second claim '' cats make bonds with humans''.
Explanation:
There are two claims that are scientifically proven about cats i. e. cats are very smart animal because they have highest number of neuron about 300 millions present in their brain which gives them the ability of intelligence and problem solving. They make emotional bonds with their owners just like dogs and can be trained by their owners so that's why many people make cat as a pet animal in their houses..
credit goes to ahsan57900 for this answer
10. A battery-operated alarm
clock waking you up in the
morning. What type of energy is this?
Answer:
Chemical Energy!
Explanation:
A Battery is made of chemical energy!
Obesity is a digestive system issue for which of the following age groups?
Answer:
d. All of the above
Explanation: is correct
cuales son las adaptaciones para el ecosistema acuatico
Answer:
diseño aerodinámico, aletas
Chaz is visiting California. He notices it is very dry, with soil mostly made of sand and rock. What type of biome is he in?DesertTemperate grasslandsTropical rain forestTundra
Answer:
Desert
Explanation:
Deserts are very dry and rocky which is what Chaz is explaining
A type of biome that is very dry, with soil made mostly of sand and rock found in California is known as the desert.
What are biomes?Biomes has been considered as the higher level of organization than ecosystems. Biomes are land areas formed by the influence of climate, rainfall, and latitude. There are various kinds of biomes namely desert biome, prairie biome, savanna biome, tropical forest biome, deciduous forest biome, tundra biome, and mangrove forest biome.
The Mojave Desert is a desert that comprises parts of southern California and small parts of Northern California, southwestern Utah, southern Nevada, and northwestern Arizona, in the United States.
A desert is a biome which receives very little annual precipitation. As a result of this it exhibit very hot and dry climatic conditions. The soil generally losses it's fertility which may either become compact or remain in loose form due to erosion like sand. The plants exhibit fleshy leaves so as to prevent the loss of water through transpiration.
Therefore, A type of biome that is very dry, with soil made mostly of sand and rock found in California is known as the desert.
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what causes genetic variation in meiosis?
A. chromosomes lining up
B. separation of chromosomes
C. crossing over chromosomes
D. chromosomes pulling apart
Answer:
C. crossing over chromosomes
Explanation:
Process of Meiosis. A man produces sperm and a woman produces eggs because their reproductive cells undergo meiosis.which cause Crossing Over.
I need help with one paragraph.
Answer:
I miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rageI miss the rage
Explanation: