What does alteration of generation mean?

Answers

Answer 1

Answer:

Alteration of generation, is the type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct haploid sexual and diploid asexual stages.

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Related Questions

Which statement correctly compares nucleid acids and corbohydrates?

Answers

Answer:

The correct answer is 4) They both contain carbon, but only nucleic acids contain phosphorous.

Explanation:

nucleid acids and corbohydrates both contain carbon, but only nucleic acids contain phosphorous. Nucleic acid and carbohydrates are essential biomolecules, which are important for the survival of life forms. DNA and RNA comprises the nucleic acid, which posses the genetic information of the living organism.

When describing a group of animals, you speak about an ancestral species and some but not all of its descendants. This is an example of a _____. Group of answer choices monophyletic group polyphyletic group paraphyletic group

Answers

Answer:

This is an example of a paraphyletic group.

Explanation:

Paraphyletic groups is a group that contains only part of the descendants of a common ancestor. A group is constituted as paraphyletic when one or more holophyletic groups are subtracted from a clade (evolutionary branch). Traditional classifications are loaded with paraphyletic groups, such as invertebrates, pteridophytes, opposites. In each of these cases the group is defined by the exclusion of a smaller group within a larger one. An example is the reptiles are a paraphyletic group, since when we refer to them we are excluding mammals and birds even though they are taxa that evolutionarily descend from reptiles.

CLASS ENVIRONMENTAL SCIENCE The____domain incorporates cultural norms that directly impact sustainable development. The___ domain focuses on the protection and preservation of natural and artificial resources


Blank 1: ......................Blank 2:
A: social..................... A: public policy
B: economic..............B: technological
C: sustainable..........C: environmental​

Answers

Answer:

the answer is c

Explanation:

i got 100%

Balance the equation with the correct coefficients.

Answers

Answer:

2 KClO³ ------ 2KCl + 3O2

Answer:

2KClO3--------2KCl+3O2

Concerning the above image, what region of the eye contains rods/cones?

A) Sclera
B) Optic Nerve
C) Choroid
D) Retina
E) Other:

Answers

Answer:

Retina

Explanation:

The retina has rods and cones.

Rods help us see dim images and comes help us see bright and colored images.

What is Science ???.........​

Answers

Answer↷

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

➦I hope it seemed helpful to you!

Answer:

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Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.

Answers

Answer:

Rosalind's x-ray showed that the ladders of nucleotides were inside a double helix.

Watson and Crick built models with the ladders on the outside.

n 1952, Rosalind Franklin produced an image of DNA that suggested it contained two strands twisted in a double helix with a phosphate backbone and bases inside. ... Watson and Crick used this information to build and accurate model of DNA

After you eat lunch, nerve cells in your stomach respond to the distension (the stimulus) resulting from the food. This is best described as a mechanism between:

Answers

Answer:

stimulus, control center

Explanation:

The control center is the main nervous system of the brain that is used to carry out different sensory, the motor and integration of data.

The stimulus control is the behavioral control that is described as the situations where behavior is triggered by the presence or the absence of any stimulus. Stimulus is the functional reaction in a tissue or any organ.

In the context, the nerve cells in the stomach responds to the stimulus that results from the foods after eating food is a mechanism between the stimulus and the control center.

Which of the following is NOT
true of the female gamete
development?
A. The central cell divides into four
haploid cells.
B. There are multiple ovules in an ovary.
C. The flower is what draws in pollinators.
D. There is more than one egg cell in each
ovule.

Answers

C is the answer for that

Answer:

It’s D

Explanation:

Which of the following describes wetlands?
A. separated into photic and aphotic zones of still water with large
amount of vegetation and fish
B. located between aquatic and terrestrial environments and
reduces flooding and filters water
C. filled with running water and don't allow the collection of algae,
and are home to small crustaceans
D. collected salt water that is located by the coast and filled with
calcified remains of cnidarians

Answers

Answer:b

Explanation:

Wetlands are located between aquatic and terrestrial environments and reduces flooding and filters water. Therefore, option (C) is correct.

What are wetlands?

Wetlands are defined as areas where water either completely covers the soil or is present either at or near the surface of the soil throughout the entire year or for varying amounts of time at different times throughout the year, including during the growing season.

Our water is cleaned by wetlands because they filter out sediments, other pollutants, and even chemical contaminants. Additionally, wetland areas act as a filter for and a processing facility for excess nutrients that may run off from agricultural and development sites. Historically, people have referred to wetlands as "the kidneys of our watershed."

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Which of these choices is the original source of energy that humans receive from consuming
an herbivore such as a cow?

Answers

Answer:

the glucose we make from eating the cow

Neurospora is an ideal organism to study the effects of genetic mutations because of several reasons. What is one of these

Answers

Answer:

Due simple growth.

Explanation:

Neurospora is an ideal organism to study the effects of genetic mutations because it is easier to growth and are simple. Neurospora crassa is used as a model organism because it has a haploid life cycle and easier to grow that makes genetic analysis simple. Analysis of genetic recombination is facilitated by the ordered arrangement of the products of meiosis in Neurospora ascospores so due to simple growth and haploid life cycle we can considered   Neurospora is an ideal organism.

when measuring the blood pressure, the cuff is deflated until two consecutive beats are heard through the stethoscope. This measurement reflects

Answers

Answer: Systolic pressure.

Explanation:

Every time the heart beats, it pumps blood into the arteries, which are vessels through which blood circulates from your heart to your tissues with the oxygen and nutrients they need. Blood pressure is the force of the blood pushing against the walls of the arteries, and is highest when the heart beats, pumping blood, which is measured as systolic pressure (i.e., when the heart contracts). On the other hand, diastolic blood pressure refers to the pressure of blood in the artery when the heart relaxes between beats (i.e., when the heart relaxes). Since there are two types of pressures, blood pressure readings are given in two numbers, with the top number being the systolic pressure and the bottom number being the diastolic pressure.  

For example, if the systolic pressure measured in a person is 125 millimeters of mercury (mm Hg) and the diastolic pressure is 85 mm Hg, the blood pressure is recorded as 125/85.  

So, the systolic blood pressure is registered with the stethoscope when the cuff is deflated. When two heartbeats are heard, the pressure gauge reading is recorded. When the heartbeat ceases, the cuff pressure is released and the diastolic pressure is measured at this time.


6. What is the relationship between genes and alleles?

Answers

Answer:

A gene is a unit of hereditary information. Except in some viruses, genes are made up of DNA, a complex molecule that codes genetic information for the transmission of inherited traits. Alleles are also genetic sequences, and they too code for the transmission of traits. So, what it is the difference between a gene and an allele? The short answer is that an allele is a variant form of a gene.

Explanation:

How is an ectotherm most likely to maintain homeostasis during hot weather?

Answers

Answer:

The correct answer is - by burrying underground.

Explanation:

In the ecthermal animals who are also known as the cold-blooded animals. These animals change the heat from the environment and exchange through various ways if the weather is too hot.

Evaporating by tounge, moving to a shady area like under a tree or rocks, burrying the ground for the cooling down their body are few of the ways they maintain their homeostasis during hot weather.

Pls help me pls this is due today

Answers

protein

Explanation:

beacause its ah. cd

I don’t know the answer

Answers

Answer:

found this diagram

Explanation:

:)

How is The processes of photosynthesis and respiration are interrelated

Answers

[tex]\color{Black}\huge{Answer} [/tex]

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Answer:

Carbon dioxide and water are converted to oxygen and glucose through photosynthesis.

Oxygen and glucose are converted into water and carbon dioxide through cellular respiration.

By-products include water and carbon dioxide, while ATP is the energy generated by the process.

Explanation:

Plants use light water and carbon dioxide to make energy (glucose) and oxygen through photosynthesis. The oxygen is released into the atmosphere while the glucose powers the plant's operations. The process through which animals mix glucose and oxygen to make carbon dioxide and water is known as cellular respiration.

Photosynthesis end product is glucose utilised for the production of ATP in the cellular breathing. Glucose is then returned to carbon dioxide, needed for photosynthesis. During photosynthesis, the water is broken down into oxygen, but oxygen is mixed with hydrogen into water in cell respiration.

Propose what happens to sodium and potassium ions during hyperpolarization.

Answers

Answer:

En biología, la hiperpolarización es cualquier cambio en el potencial de membrana de la célula, que hace que esté más polarizada. Es decir, la hiperpolarización es un incremento en el valor absoluto del potencial de membrana de la célula.

During hyperpolarization, sodium ions are pumped out of the cell and potassium ions are pumped into the cell, leading to an overall increase in the negative charge within the cell.

What is hyperpolarization?

Hyperpolarization is a process that occurs in cells, particularly in neurons (nerve cells). It is characterized by an increase in the negative charge within the cell, which results from the movement of ions across the cell membrane. During hyperpolarization, sodium ions are pumped out of the cell and potassium ions are pumped into the cell. This results in a more negative charge inside the cell, which can inhibit the cell's ability to respond to stimuli.

Hyperpolarization is the opposite of depolarization, which is a process that leads to a decrease in the negative charge within a cell and an increase in the cell's excitability. Hyperpolarization can be triggered by various stimuli and plays a role in the normal functioning of the nervous system.

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The process of chewing, smashing, and grinding food in the mouth is called

peristalsis

mechanical digestion

absorption

chemical digestion

Answers

The process of chewing, smashing, and grinding food in the mouth is called mechanical digestion (option B).

What is digestion?

Digestion is the process, in the gastrointestinal tract, by which food is broken down into simpler substances that can be utilized by the body.

Digestion can occur in the following ways;

MechanicallyChemically

Mechanical digestion involves the breakdown of food molecules by physical means such as grinding, chewing, smashing etc.

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In _______, with the help of Rosalind Franklin, ____________ discovered the structure of DNA.

Answers

Answer:

maybe this will help you fill in the blanks.

I didnt really know what to put in the blanks so I searched some stuff up for you.

Explanation:

At King's College London, Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins. Franklin's images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model. In 1962 Watson

the answers should be in this.

Answer:

In King's College London, with the help of Rosalind Franklin,  Maurice Wilkins discovered the structure of DNA.

Explanation:

Anemia is a medical condition in which the affected person lacks enough red blood cells. What two effects will such a condition have on the patient?

The patient will have less hemoglobin in the blood.
The patient will have less immunity against bacteria.
The patient will have a reduced oxygen supply to the cells.
The patient will have a thicker blood composition.
The patient will have increased platelets in the body.

Answers

Answer:

very truthful

The patient will have less hemoglobin in the blood.

The patient will have a reduced oxygen supply to the cells.

A Scientist discovers a chemical that she thinks might be a potential treatment for a certain type of cancer cell. In order to test her hypothesis, the scientist treats one plate of cancerous cells with the newly discovered chemical, and leaves another plate of cancerous cells untreated. After 7 days, the scientist measures the number of living cells in each plate. The scientist finds that the cells treated with the chemical have a lower survival rate than cells left untreated. The scientist further observes that the substance has an effect on the Rough endoplasmic reticulum (RER). How might disabling the rough ER potentially hurt the cancerous cells? Be specific in your answer. What is the dependent variable? What is the independent variable?

Answers

Answer:

Affecting the ER causes alteration in cell homeostasis and eventual death.Independent variable: Drug or chemicalDependent variable: Cancer cells survival.

Explanation:

Hypothesis ⇒ A chemical ⇒ might be a potential treatment for cancer cells.

Experiment:

Treated ⇒ One plate of cancerous cells with the new chemicalUntreated ⇒ Another plate of cancerous cells with no chemical

7 days later ⇒ the number of cells in each plate

Results:

Cells treated with the chemical have a lower survival rate than cells left untreated.

Treated plate ⇒ fewer cellsUntreated plate ⇒ more cells

Chemical affects the Rough endoplasmic reticulum (RER)

----------------------------------------------------------------------------------------------------------

The endoplasmic reticulum is in charge of many cellular functions, such as protein folding, maturation, and transport, especially those destined for secretion. It produces the latest protein modifications after transduction.

When the synthesizing protein gets in the Rough endoplasmic reticulum,  it continues its building in the organelle. Finally, the protein suffers folding and the initial stages of glycosylation.  

Once the protein synthesis in the endoplasmic reticulum is over, these molecules are packaged into vesicles and sent to the Golgi complex for their final association with carbohydrates. Finally, protein leaves the Golgi complex and goes to its final destiny.

Any alteration in the intracellular environment

inevitably affects the organelle and its functions. When the organelle is not properly working, proteins synthesis is affected and, consequently, all the cellular activities. The affected cell homeostasis might be so altered that the cell ends dying.

If the drug affects the ER by altering its environment or directly affecting it, the organelle will fail to perform its functions, and the cell will eventually dye.

------------------------------------------------------------------------------------------------------------

The independent and the dependent variables are the two principal factors needed in an experiment.  

 Independent variable: Refers to all the variables in an experiment that provoke a response in another variable. The independent variable changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.

In the exposed example, the independent variable is the drug that affects the cancer cells. The researcher decides to apply it or not, and the concentrations in which the drug is.  

Dependent variable: Refers to the variable that reacts to the changes produced in the independent variable. Depending on how the independent variable is modified, the dependent variable change.  It is usually identified by the letter Y.

In the exposed example cell survival is the dependent variable. Cancer cells respond to the presence/absence of the chemical, and might differently respond to the varying concentration of the drug.

How many glycosidic linkages would be found in a polysaccharide composed of 311 monomers linked together?

Answers

Answer:

310

Explanation:

list any 10 common good honey flora.​

Answers

Answer:

spring vegetation. such as hazel snow drops,primroses,saffron willow,hellsbore,Heather, wild cherry,dandelion,fruit tree,

Explanation:

under the classification

please answer this:)​

Answers

May to October octuder to Dedembera

Autoclaving is the most effective among all moist heat-related antimicrobial methods. (True or False)

Answers

Answer:

True.

Explanation:

Autoclaving is the most effective among all moist heat-related antimicrobial methods because this method can kill all the harmful microbes such as bacteria, fungi and viruses. Moist heat causes destruction of microorganisms by denaturation of macromolecules that is present in their body such as proteins. Autoclaving is a very common method for moist sterilization. It is an effective method in killing fungi, bacteria, spores, and viruses but it does not eliminate prions.

which of the following is not a feature of natural selection?

Answers

Answer:

naturally living organisms

One of the ways that food can be preserved is by heavily salting it so that bacteria cannot live upon the food. What causes the bacteria to die in an extremely salty environment? Group of answer choices

Answers

Answer:

Dehydration

Explanation:

What causes bacteria to die in an extremely salty environment is dehydration due to the loss of osmotic balance in their cells.

Water molecules would normally move from the region of high water potential or low solute concentration to the region of low water potential or high solute concentration through a biologically permeable membrane.

An extremely salty environment would be hypertonic to the cells of bacteria and the cell walls of bacteria act as biologically permeable membranes. Hence, the bacteria cells lose water due to the osmotic movement of water from their cells to the surrounding salty environment.

Lesson: Hierarchical Taxonomic System of Classification
MELCS: 1. Explain the concept of a species.
2. Classify organisms using the hierarchical taxonomic system.
1. Directions: Using the Linnaean system of classification, describe these living things.
CATEGORY
Human
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
W​

Answers

Answer:

MELCS:1= Species are the group of actually or potentially interbreeding populations which are reproductively isolated from other such groups....... Thus, under the biological species concept, species are simultaneously a reproductive community, a gene pool, and a genetic system.

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A math instructor claims that college women have more credit card debt than college men. She conducts a random sample of 38 college men and 32 college women, determines their average credit card debt, and obtains the following statistics: women n1 =32 x1= 781 s1 = 1489 men n2 = 38 x2 = 435 s2 = 1026Test the claim that college women have more credit card debt than college men at the a = .05 level of significance. Assume unequal variances. Which of the changes below is NOT a violation of ceteris paribus when discussing demand for CD players?A. decrease in the price of CD playersB. increase in the price of DVD playersC. increase in the price of CDsD. decrease in the price of MP3 players What is the largest number (of a single species) a specific area can support?A. PopulationB. Unlimited factorC. Carrying capacity D. Niche A grocery store buys cereal using the cost functionc(n) = {2n when n < 1001.9n when 100Sn = 500 1.8n when n > 500where n isthe number of boxes of cereal the grocery storebuys and c(n) is the cost of the cereal. The grocerystore then sells the cereal using the sales functions(c) = 1.3c. What is the cost of the cereal if thegrocery store buys 250 boxes? List all of the vocabulary words that contain -traction plus a prefix. Make sure you use correct spelling. PLZ I NEED ANSWER ILL GIVE BRAINLIEST In this technique, each attribute is associated with a specific feature of a face, and the attribute value is used to determinethe way a facial feature is expressed. This technique is called._______________ the series of specific steps you follow to achieve a goal is known as a(n) Why are measurements important for science?Give two reasons.Please help meeee :( Help please!!The triangles are similar by:the SAS similarity theorem.the ASA similarity theorem.the AA similarity postulate.None of the choices are correct.the SSS similarity theorem. PLESE HELP WITH ANSWER. rewrite the function in the given form PLEASE HELP QUICKLYThe diagram shows the potential energy changes for a reaction pathway. (10 points)Part 1: Does the diagram illustrate an endothermic or an exothermic reaction? Give reasons in support of your answer.Part 2: Describe how you can determine the total change in enthalpy and activation energy from the diagram and if each is positive or negative. Aqueous hydrochloric acid will react with solid sodium hydroxide to produce aqueous sodium chloride and liquid water . Suppose 35. g of hydrochloric acid is mixed with 73.0 g of sodium hydroxide. Calculate the minimum mass of hydrochloric acid that could be left over by the chemical reaction. Round your answer to significant digits. what is diffrent between state and goverment Hiya Kitties!!! Question, What is the most common type of Eating Disorder in Males? Suppose you had been in charge of designing the study. What sample size would be needed to construct a margin of error of 2% with 95% confidence Gwen plans to retire in 3 years with $426,000 in her account, which has an annual return of 6.29 percent. If she receives annual payments of X, with her first payment of X received in 4 years and her last payment of X received in 9 years, then what is X, the amount of each payment? Number Emerson plans to retire in 3 years with $296,000 in his account, which has an annual return of 10.13 percent. If he receives payments of $60,700 per year and he receives his first $60,700 payment in 4 years, then how many payments of $60,700 can Emerson expect to receive? Round your answer to 2 decimal places (for example, 2.89, 14.70, or 6.00). Tommy went to the shop where there was a 20% off sale taking placeThe shirt he wanted to buy was originally 20How much money does he save in the sale? The power of the kettle was 1.5 kW. The 0.2kg heating element took 5 seconds to heat from 20 C to 100 C. Calculate the specific heat capacity of water using this information. rewrite 1/6 and 2/11 so they have a common denominator then use to order