(c) State two differences between this mesophyll cell and a root hair cell. (2 marks)

Answer:

ferns

Explanation:

these are alsi known as conifers which require a great amount if light

Im not a science student just trying beans I guess

Answer:

It separate the inner environment from the outer environment.

Explanation:

The design provides the separation of the inner environment from the outer environment which is responsible to control the outside factors which directly affects the results of the experiment. The design provides control environment which is required for the experiment. In this control environment, the environmental factors will not affect the results of the experiment.

Answer:

D. Gly Lys Cys

Explanation:

Answer: Probability: 0%

Explanation:

Hardy-Weinberg establishes that the genetic composition of a population remains in equilibrium as long as no natural selection or other factors act and no mutations occur. This means that the children of this couple will inherit the genes of the parents.

The woman is phenotypically normal with no family history of PKU, this mean that probably there are no affected (recessive) alleles in her family. In an autosomal recessive disorder, both copies of the gene in each cell are recessive. Therefore, her genotype will be AA with A being the dominant and normal allele. As for the Irish man, his sister does have PKU, which means her genotype is aa. So, she must have received a defective allele from each parent. Then the parents' genotypes are both Aa (heterozygous, only one allele affected as they are healthy). So, we know that the Irish man does not have the disease (he can't be aa), but he could be Aa (having inherited a normal allele from one parent, and an affected one from the other parent) or AA (having inherited both normal alleles from each parent).

Then we have two possible punnetts square to do: AA (the Irish woman) and AA (he Irish man); or AA (woman) and Aa (man).

In the attached figure both punnetts squares are shown. The first punnett square (AA x AA) shows that 100% of the offspring will be AA (this means, the phenotypic ratio is also 100% not affected and non-carrier). The second punnett square (AA x Aa) shows that 50% will be AA (healthy and non-carrier) and 50% will be Aa (heterozygous, healthy and carrier) But since it is an autosomal recessive disease, a single affected allele is not enough to develop the disease. So in neither case is there a chance of having a child with PKU.

Answer:

Golgi bodies /apparatus

Explanation:

this organelles are responsible in for packaging and transportation of glyco proteins therefore are the organelles mainly involved in secretion of synthesised proteins

Pepsin is an enzyme produced by stomach cells to help digest protein. Stomach cells package and secrete pepsin Golgi bodies.

The majority of eukaryotic cells contain the Golgi apparatus, sometimes referred to as the Golgi complex, Golgi body, or just the Golgi.

It packs proteins into membrane-bound vesicles inside the cell before the vesicles are delivered to their destination. It is a component of the endomembrane system in the cytoplasm.

It is situated close to the cell nucleus and the endoplasmic reticulum in the cytoplasm.

Pepsin is an enzyme that the stomach cells manufacture to aid in the breakdown of protein. Pepsin Golgi bodies are packaged and secreted by stomach cells.

Thus, the organelle is Golgi bodies.

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Answer: b

Explanation: i got the answer wrong and i’m looking at the results rn

Protein is being produced with the help of a process called translation in which mRNA gets translated to produce proteins. The translation is followed after the process of transcription of DNA to RNA.

The cause of the greater influence of protein levels has defined as follows:

Thus, we can conclude that mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced. Hence, option (b) is the correct answer.

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Eye color is an example of Gene expression

Answer:

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the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behaviour, origin, and distribution.

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Answer:

The word biology is derived from the greek words /bios/ meaning /life/ and /logos/ meaning /study/ and is defined as the science of life and living organisms. An organism is a living entity consisting of one cell e.g. bacteria, or several cells e.g. animals, plants and fungi.

Hope this helps! :D

Answer:

Hey there!

Recently, scientists have discovered many things. Some include: A new ink to detect fake passports, world's largest supercomputer, hyperloop technology, and even a potential vaccine for diarrhea.

Let me know if this helps :)

Answer:

Yes.

Explanation:

Yes, cloning is a form of asexual reproduction because there is no fusion of sperm and eggs takes place. the animal which is formed from this process is identical of that organism because it is produced from the tissue of that single animal. in 1996, first mammal is produced from cloning was sheep named dolly at the Roslin Institute in Scotland. In cloning, the egg is taken from female organism and remove the nucleus from the egg then the desired organism cell is taken and fuse with the nucleus with the help of electricity. Then implant this embryo in the body of first organism from where egg is taken and after that the embryo turns into a baby, this process is called cloning.

Answer:

Yes, cloning is a form of asexual reproduction. The diagram shows that new plants form from a single parent plant, which means that the offspring are genetically identical to the parent.

Explanation:

Edmentum

Answer:

hey there !!!!

According to google your answer's are as follows

I} Parasitism means the relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.

II} Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide.

Answer:

A Detritivore

Explanation:

A Detritivore is a heterotrophic organism that feeds on dead plant and animal materials. They could also feed through coprophagy which is nutrition obtained by feeding on feces. Worms that dwell on the soil, insects, and mollusks are examples of detritivores. Detritivores can also be found residing in aquatic environments. Crabs and Lobsters are examples of these organisms.

Detritivores have no teeth. So, they tend to suck in their food, and this food, through peristaltic actions, moves directly into the digestive tract where it is acted upon by digestive enzymes. From the observations, I made about the organism at the mudflat at the ocean, I can conclude that it is a detritivore.

Answer:

Apsidal precession

Explanation:

Apsidal precession is the process that causes changes in Earth's orbit and was found to coincide with 100,000-year glacial cycles. Thus, the correct option is C.

The glacial cycle may be defined as a significant global climatic oscillation of the order with a specific rate that is developed by the ice age.

Apsidal precession is the precession of the line that links the apsides of an astronomical body. The regular cycle of apsidal precession takes about 100,000-year.

Therefore, the correct option for this question is C.

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Answer:

E. have a variable region that binds to a specific antigenic determinant.

Antibodies E. have a variable region that binds to a specific antigenic determinant.

This location of the antibody is known as the Fab (fragment, antigen binding) place. it's far composed of 1 constant and one variable domain from every heavy and light chain of the antibody. The paratope is shaped on the amino terminal cease of the antibody monomer by the variable domains from the heavy and light chains.

An antigenic determinant is a website online of an antigen molecule that is termed an epitope and interacts with the unique antigen-binding site within the variable vicinity of an antibody molecule called a paratope.

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Explanation:

The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859), Mendel’s laws of inheritance (1865), and the establishment of comparative biochemistry (1940).

First Cells Seen in Cork

While the invention of the telescope made the Cosmos accessible to human observation, the microsope opened up smaller worlds, showing what living forms were composed of. The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope. Hooke’s description of these cells was published in Micrographia. The cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells. The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra. Van Leeuwenhoek probably also saw bacteria

The cell theory, states that all organisms are composed of similar units of organization, called cells.

The concept of cell theory was in 1839 by Schleiden & Schwann which leads the foundation of modern biology. Cell theory states that every cell is generated from another preexisting cell.

This idea makes the great revolution in biology including Darwin’s theory of evolution (1859), Mendel’s laws of inheritance (1865), and the establishment of comparative biochemistry (1940).

Schleiden & Schwann propose every organism is composed of the cell, which is the basic unit of life and each cell comes from the preexisting cell, and each cell produces a progeny which is similar to its parent cell.

Therefore, cell theory states the existence of the cell in the organism.

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Answer:

without the right amount of temperature and water photosynthesis won't take place and without the presence of carbon dioxide...there is nothing like photosynthesis

Explanation:

1) Temperature- Above 28°C of temperature photosynthesis will not take place faster as necessary. At this temperature, the enzymes responsible for photosynthesis will not work efficient as needed .  2)Water and 3)Carbon Dioxide-Water and carbon dioxide are the reactants in Photosynthesis which means they are taken in to produce energy. Six molecules of water and six molecules of carbon dioxide are needed to break apart glucose and produce energy.

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Answer:

option A is correct that is 12

Explanation:

meiosis occur in two phases in first phase DNA replication occur and amount of DNA become doubled without any change in the chromosome number and two daughter cell (each 2 n)are formed.

now in stage 2 each daughter cell undergoes mitosis with the formation of two cells with half chromosomes(n)

now 2n=24

n=24/2 =12

after meiosis stage 1...........two daughter cell each with  24 chromosomes

stage 2 .............each daughter cell form two grand daughter cell each with 12 chromosomes

net result.......4 daughter cell each with 12  chromosome(assuming cell as a diploid cell)

If a cell has 24 chromosomes before cell division then the daughter cell resulting from the mitotic division will have 24 chromosomes while the daughter cell resulting from the meiotic division will contain 12 chromosomes each.

The answer is option A.

There are sorts of cell departments: mitosis and meiosis. most of the time whilst humans discuss “cellular division,” they suggest mitosis, the procedure of making new frame cells. Meiosis is the sort of cell division that creates egg and sperm cells. Mitosis is an essential technique for lifestyles.

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Answer:

a. the climate gets warmer...

Explanation:

When volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.

The Greenhouse effect may be defined as the phenomenon of keeping the earth warm due to the presence of certain gases in the atmosphere.

Greenhouse gases like carbon dioxide, Methane, and Nitrous oxide allow the solar radiations to enter but prevent the escape of heat radiations of longer wavelength.

Due to this, the gradual and continuous increase in the average temperature of the earth's surface occurs, a phenomenon known as global warming.

Therefore, when volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.

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Answer:

Respiration is a type of metabolism.

Answer:

C. Respiration is a type of metabolism

Explanation:

Both B and D are incorrect because:

Multicelluar organisms have more than one cell; while singlecelled organisims only have one cell.

Also, homeostasis is a natural way an organisms body reacts to different situations, like when you sweat, your body is realising a way to lower the heat in your body. Therfore, A. is also incorrect.

Hope this helped!

Answer:ITS H

Explanation: BECAUSE I SAID SO

Answer: COMPUTER SIMULATION

Explanation: Computer simulation is a model that helps to scientists to have a clear and better understanding and be able to effectively predict the occurrence of future outcomes of real physical situations.

Computer simulation makes use of mathematical models to effectively analyse and predict future occurrences which helps the world to be better prepared and able to effectively manage physical and real world situations.

Answer: Stimulates the contraction of the uterus during childbirth - OXYTOCIN

Stimulates sperm production and growth of ovarian follicles - FOLLICLE STIMULATING HORMONE

Initiates the Secretion of leutinizing hormone and follicle stimulating hormone - GONADOTROPIN RELEASING HORMONE

Initiates the development of secondary sex characteristics in females - ESTROGEN

Initiates the development of secondary sex characteristics in males - TESTOSTERONE

Initiates cell production of testosterone and estradiol by cells in the gonads - LUTEINIZING HORMONE.

The correct match for hormone and their functions are- 1- Oxytocin, 2- follicle-stimulating hormone, 3- a gonadotropin-releasing hormone, 4- estrogen, 5- testosterone, and 6- luteinizing hormone.

Oxytocin is a naturally occurring hormone that plays a vital role in the reproductive system of both men and women, including labor, delivery, and breastfeeding, as well as in human behavior.

FSH is produced by the pituitary, which is a small gland just below the brain. The pituitary plays a vital role in the development and regulation of sexual function.

Gonadotropin-releasing hormone stimulates the brain’s pituitary gland to produce and release the hormones LH and FSH.

Estrogen is a family of hormones that play a vital role in the reproductive and sexual development of women.

Testosterone is a male sex hormone. It is responsible for spermatogenesis and fertility in males.

Luteinizing hormones (LH) are hormones in the body that stimulate the reproductive system. Luteinizing hormone stimulates ovulation and stimulates the production of the hormones needed for pregnancy

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Answer:

Disorders involving sex chromosomes.

we can take Turner's syndrome n klinefelter's syndrome as examples.

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Nucleus is the control centre of the cell and manages all the cellular activities taking place inside the cell. It consists of four parts :-

The Chromatin material(Condensed - Chromosome) stores the cell's DNA which is transmitted to next generation.

Answer:

Climate on crop production contribute to the greenhouse effect and climate change and impacts on agriculture production.

Explanation:

Crop production of climate change is likely to change food security in the future, all people and economic to sufficient and safe an active life.

Climate change is to contribute to food prices and food production, and expensive climate change increase energy prices,production may increased crop water and suitable production.

Agriculture and food product system is a major process source of gas,could increase products,yield of crop restricted by the extreme events.

Productivity can also effects on the immune system them certain diseases,in animals are productivity and fertility.

Crop level to climate change is expected be in future changing crop irrigation practices,crop production under global change.

Climate change extreme events have been and strategies suggest to help maintain production and restoring farm type, crop, food systems, crop that stress tolerance.

The question is incomplete,below is the complete question.

Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything?"

You tell the Clinical Nurse Specialist (CNS). As the two of you move him into the bed, you notice that his chest tube bottle is lying on its side on the gurney, with air going into it. When you point this out to the CNS, she immediately grabs the bottle and sets it upright on the floor. You see air start bubbling through the fluid right away. "That was the problem!" she says. "They lost the water seal, and air was going into his chest from the bottle. You would not believe how many times that happens on transport." When you examine Mr. B, you have trouble detecting his lung sounds on the left. Even stranger, his apical heart sound is in the wrong place - it is over toward the right side of his chest. His respiration rate and heart rate are both increased, and he is struggling to breathe. "Let's give him a little oxygen. He'll be a lot better in a half-hour," says the CNS. "Check back on him."

QUESTION - Why would accumulation of air in his pleural space cause his heart sounds to be in the wrong place?

Accumulation of air in Mr B pleural space will cause his heart sound to be heard in the wrong place because the left side is his chest is being filled up with air making the organs in his chest to to be pushed over to the right side.

Answer:

it is a food chain.

I can't write more it's not allowed

Answer:

To improve the reliability of the results, the nutritional component of each category of water must be tested and recorded.

Second, the experiment should be carried out under greenhouse conditions.

The above actions will afford more control. When an experiment is controlled, it means that except for the dependent variable, all other variables are kept constant by the scientist.

By performing the experiment under greenhouse conditions, the kind of water the plants receive, temperature and other biotic actors are kept within measurable limits thus increasing the reliability of the results.

Cheers!

Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.

Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.

This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.