The outer layers of cells on the underside of a leaf work to gather carbon dioxide by the utilization of stomata.
What are Stomata?Stomata may be defined as the presence of tiny pores in the epidermis of the leaf or stem of the plant. The fundamental function of this structure is to regulate the amount of gas exchange.
A massive amount of gaseous exchange takes place in the leaves through these pores for the purpose of photosynthesis.
The opening and closing of these stomata are regulated by the guard cells. In order to prevent water loss through such pores, plants are required to close such pores during mid-day.
Therefore, the outer layers of cells on the underside of a leaf work to gather carbon dioxide by the utilization of stomata.
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What is produced in abundance by pioneer species?
a) plants
b) cones
c) seeds
d) wet habitats
Answer:
A (plants)
Explanation:
Pioneer species usually create plant litter and break them down as leaf mold after a while which would make new soil for secondary succession and nutrients for small fish an aquatic plants < most of that came from Gogle because if it came from my head it would've been hard to understand lol
what happens during anaphases?
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle. … The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
In sexual reproduction, what is true about the DNA of the offspring?
A. It is the same as the fathers DNA.
B. It is a different from either parents DNA.
C. It is the same as the mothers DNA.
Answer:
[tex]\boxed {\boxed {\sf B. \ It \ is \ different \ from \ either \ parent's \ DNA}}[/tex]
Explanation:
Sexual reproduction is one kind of reproduction. It involves two parents to produce offspring. This kind of reproduction occurs when gametes combine. Gametes are sex cells or the egg and sperm. These cells are created in a process known as meiosis. Meiosis is a type of cell division. Cells undergo two divisions and a process known as crossing over. Genetic material is exchanged between two chromosomes, which helps maintain genetic diversity. The 2 divisions result in 4 haploid cells, meaning they have half of the genetic material. After meiosis, there are 4 genetically unique and haploid cells.
When an egg and sperm combine during fertilization, a zygote forms. This is a fertilized egg. It is very unique because each parent contributes half of the genetic material to create a diploid organism with a full set of unique DNA.
You can look similar to your parents and siblings, but (unless you have an identical twin), there is typically some difference because the DNA of offspring is different from either parent's DNA.
is a prokaryotic transcription terminating factor.
A.Rho factor
B.Poly U tail
C.Poly A tail
D.Hairpin loop
your answer is
A - Rho factor
The brain is enclosed inside a bony box called ?
Answer:
The brain is enclosed inside a bony box called cranium.
Which type of disease might MOST LIKELY be cured by stem cell transplantation?
Answer:
A blood stem cell transplant is used to treat patients with: multiple myeloma,lukemia and even anaemia.
I hope this helps
Write any two examples of weightlessness.
Answer:
Earth-orbiting astronauts are weightless for the same reasons that riders of a free-falling amusement park ride or a free-falling elevator are weightless. They are weightless because there is no external contact force pushing or pulling upon their body.
Briefly explain what happens during Meosis 2.
Answer:
So the cells that enter Meosis 2 are the ones that are made in Meosis 1. These cells are haploid meaning they have just one chromosome from each homologue pair. Also In meiosis II, the sister chromatids separate, making haploid cells with non-duplicated chromosomes.
Explanation:
Answer^Above
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Unlike DNA, which typically forms a helical structure, different molecules of RNA can fold into a variety of three-dimensional shapes.This is largely because RNA A)contains uracil and uses ribose as the sugar. B)bases cannot form hydrogen bonds with each other. C)nucleotides use a different chemical linkage between nucleotides compared to DNA. D)is single-stranded. Multiple Choice
Answer: This is largely because RNA is single-stranded. The correct option is D.
Explanation:
RNA ( Ribonucleic acid) is a single stranded nucleic acid which is composed of:
--> A nitrogenous base: RNA consists of four nitrogenous bases which includes adenine, cytosine, uracil, and guanine. Uracil is a pyrimidine that is structurally similar to the thymine, another pyrimidine that is found in DNA (Deoxyribonucleic acid).
--> A five-carbon sugar: it contains ribose as its pentose sugar and
--> A phosphate group.
The main function of RNA is to convert the information stored in DNA into proteins.
RNA strand can undergo significant intramolecular base pairing to take on a three-dimensional structure. This is because it is single-stranded. This is due to the presence of a hydroxyl group at the 2' position of the ribose sugar. The presence of this functional group causes the helix to adopt the A-form geometry rather than the B-form most commonly observed in DNA.
all plants carry on photosynthesis true or false
Answer:
true
Explanation:
i think
What renal and hormonal factors will cause an increased release of aldosterone from adrenal cortex?
Answer:
Renin; angiotensin I and angiotensin II
Explanation:
Renin is a key hormone involved in the renin-angiotensin-aldosterone system (RAAS), which is responsible for regulating blood pressure in response to changes in blood volume. Renin is secreted primarily by the kidneys to promote the production of the peptide hormone angiotensin in the blood vessels. Subsequently, angiotensin stimulates the release of aldosterone from the adrenal cortex, stimulating sodium retention by the kidneys. Renin acts on its substrate angiotensinogen to yield angiotensin I, which is then converted to angiotensin II by the angiotensin-converting enzyme (ACE). Finally, angiotensin 2 promotes the release of aldosterone by the adrenal cortex, which acts on renal tubules, leading to the reabsorption of sodium and water and the excretion of potassium.
What compound is a hydrocarbon?
Answer:
A hydrocarbon is an organic chemical compound composed exclusively of hydrogen and carbon atoms.
Which accepted hypothesis about the origin
of life on Earth explains how all organisms
share a common genetic code?
The first life was self-replicating RNA has an accepted hypothesis about the origin of life on Earth and explains how all organisms share a common genetic code.
What is genetic code?
The genetic code is the language that our body utilizes to translate the DNA instructions from our genes into the building blocks of life. Given that mRNA is the messenger that sends information from the DNA to the location of protein synthesis, it is frequently explained using the "codons" contained in mRNA.
In the end, the genetic code serves as the foundation for everything in our cells. Our DNA serves as a storage medium for the information that is passed down from parent to kid, or what is known as our hereditary information. The RNA and proteins produced from that DNA are later employed to create cells, tissues, and organs.
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If your body temperature gets too low, why is it dangerous?
A. Enzymes become denatured.
B. Uncontrollable shivering can be deadly.
C. Reactions become too slow for cells to survive.
D. It is not dangerous.
Answer:
Enzymes become denatured.
In case of very low body temperature, the body reactions will become slow and lead to death. The correct option is C.
What is hypothermia?When your body temperature falls, your heart, nervous system, and other organs are unable to function normally.
If left untreated, hypothermia can result in the complete failure of your heart and respiratory system, as well as death.
Thus, the correct option is C.
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what does a closed circulatory system mean?
a) The blood travels through a systemic circulation, which includes the heart and body, and a pulmonary circuit with included the heart and lungs
b) the blood flows through the heart once during each circulation of the body
c) Blood always stays entirely inside the blood vessels. A separate fluid called tissue fluid bathes the tissues and cells
im guessing
c) Blood always stays entirely inside the blood vessels. A separate fluid called tissue fluid bathes the tissues and cells
Which of the following particles has a negative charge?
A. Electron
B. Nucleus
C. Proton
D. Neutron
what is photosynthesis
and precipitating??
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activitie
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.
Explanation:
I hope this answers is helpful to you
describe the primary differences between plant and
animal cells. Be sure to include a discussion of the various organelles specific
to each cell and how they differ between plant and animal cells
Explanation:
plant cells have cell membrane and cell wall while animal cells only have the cell membrane missing the cell wall
energy tranformation
using
an
Electric iron
Answer:
electrical current flows through metallic coils within the iron. As it does so, the current experiences resistance from the metallic coils and is converted into a different form, heat. ... In this case, electrical energy is converted into light.
Pleaseeee help I need to finish my test :/
When an organism undergoes mitosis and then divides in half to produce two new and identical organisms , this is called
A: regeneration
B: binary fission
C: budding
D: sporulation
Answer:
B: binary fission
Explanation:
anyone help me please
Answer:
The human body is controlled by a network of living wires called the nervous system.
How do you change ADP to ATP?
A. Add a phosphate group
B. Remove a phosphate group
C. Add an amino group
D. Remove an amino group
i have no questions xp
Answer:
That's cool :)
Explanation:
must be a good life ._.
Question 1 of 10
Which statement is true about nitrogen and oxygen?
A They make up about 99.9% of the human body
B. They both contain no subatomic particles
O
They are both made of protons neutrons and electrons.
o
They are both used to make water molecules.
SUBMIT
describe the structural and functional aspects of grassland ecosystem
search the answer on internet
What are Some of the characteristics that vertebrates share( choose all that apply)
1. Highly developed senses and nervous systems
2. Endoskeletons and a backbone
3. External protective structures
4. Joint appendages
Answer:
This answer Is Endoskeletons and a backbone
Answer:
1,2, and 4
Explanation:
What is the term for a preserved footprint left behind by an animal?
O A. Embryo
O B. Code
O C. Fossil
O D. Isotope
Answer:
A fossil.
It would be C
What type of cells are simple animal and plant cells?
White blood cells
Specialized cells
Unspecialized cells
Red cells
why goosebums appears in human body?
Explanation:
When you're cold, or you experience a strong emotion, such as fear, shock, anxiety, sexual arousal or even inspiration, goosebumps can suddenly pop up all over the skin. They occur when the tiny muscle located at the base of each hair follicle contracts.
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Help please ASAP, easy question
A species slowly loses numbers and goes
through natural selection until no individuals
are left. This describes what type of
extinction?
A evolved extinction
B. background extinction
C. mass extinction
D. endangered extinction
Answer:
evolved extinction
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