Answer:
1. Option A.
Increase.
2. Option B.
two hydrogen atoms combine to make one helium atom
Explanation:
Stars formation occur In a cold or sense region called molecular clouds. It start when the fender part of the cloud collapse under gravity. The core tend to collapse first since they are denser than the outer cloud. As the collapse they form clumps and this intend form protostar and this process take 10 million years. As the center of the protostar is compressed, it heat up. The Temperature increases.
Nuclear fusion is a chemical reaction in which two lighter nuclei combines to form heavier nuclei. Two hydrogen atoms combine to form helium atoms
_________14. In photorespiration, carbondioxide is produced in the _________ when glycine is converted to serine.
A. Peroxisome B. Lysosome C. Mitochondria D. Chloroplast
Answer:
Option D, chloroplast
Explanation:
The process of photorespiration starts in the chloroplast when oxygen attaches to the RuBP. This produces three compounds namely – a) Three carbon compound (3-PGA) and b) Two carbon compound (phosphoglycolate). 3-PGA act as an intermediate to the Calvin cycle and before entering this cycle two of its carbon are removed. To recover lost carbon, plants taken in carbon through series of reactions involving phosphoglycolate. One fourth of the total carbon transported through this pathway is released as CO2. Since this entire process takes place in chloroplast, it can be said that CO2 is produced in chloroplast
Hence, option D is correct
Which is a physiological description rather than an anatomical one? Multiple Choice There are fenestrations (openings) in the epithelial cells of capillary walls. The walls of blood capillaries are composed of a thin epithelium. The esophageal wall includes a middle layer of dense irregular connective tissue. The muscles of the intestinal wall contract slowly and involuntarily. The muscles of the thigh are composed of skeletal muscle tissue.
Answer:
The muscles of the intestinal wall contract slowly and involuntarily.
Explanation:
The study of specific characteristics and mechanism of the human body that makes it to exist as a living being is called physiology.Thus it is concerned how the body systems functions.The mechanisms involved that makes each organ to function.It is not related to the structure which is anatomy.
How are meiosis and mitosis different?
O A. Mitosis has anaphases I and II, but meiosis has only anaphase I.
O B. Meiosis produces four cells, but mitosis produces two cells.
O C. Chromatids are formed only during the process of meiosis.
O D. Mitosis produces haploid cells and meiosis produces diploid cells.
Answer:
B
Explanation:
Meiosis and mitosis are different, as meiosis produces four cells, but mitosis produces two cells that are present in Option B, as mitosis produces two genetically identical daughter cells, while meiosis produces four genetically diverse daughter cells.
What are meiosis and mitosis?Mitosis is a process of cell division that occurs in somatic (non-reproductive) cells, where a single cell divides into two identical daughter cells. The purpose of mitosis is for the growth, repair, and replacement of cells in the body, whereas meiosis is a type of cell division that occurs in reproductive cells (germ cells) and is involved in the production of gametes (sperm and egg cells) in animals. Meiosis involves two rounds of cell division, known as meiosis I and meiosis II, and makes the gametes.
Hence, meiosis and mitosis are different, as meiosis produces four cells, but mitosis produces two cells that are present in option B.
Learn more about meiosis and mitosis here.
https://brainly.com/question/10575740
#SPJ7
How much of a cell in the human body is composed of water?
O A. 75 to 90%
B. 75 to 80%
C. 50 to 60%
O D. 10 to 20%
Answer:
either A or B
Explanation:
Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass. Consequently, the interactions between water and the other constituents of cells are of central importance in biological chemistry.
Answer:
A. 75 to 90
Explanation:
Took it on my quiz just now
Seen more clearly in small populations, _______ is when allele frequencies change due to random chance, not selection.
Answer:
Genetic drift
Explanation:
Genetic drift are changes that occur in the frequency of alleles in a population that are mainly due to chance. For genetic drift to occur, this change must occur randomly, and examples is usually seen mostly in small populations.
creation of an unnatrually uniform sample to representt a diverse population can be avoided by
selecting individuals at random.
The meninges is a three-layered, membranous covering of the brain and spinal cord. Read the descriptions below and then click and drag them into the appropriate box based on whether they pertain to the dura mater, the arachnoid mater, or the pia mater.
The question is incomplete as it does not have the options which have been provided in the attached file.
Explanation:
1. Dura mater: the dura mater is the most superficial layer which is characterized by the folds. The dura mater forms the walls between the hemisphere of the brain that is between right and left halves of the cerebellum. The structure present in the dura mater is tentorium cerebelli and super sagittal sinus.
2. Pia mater: the deepest layer present which is adhered to the tissues of the brain. The cortical gyri blood vesicle are superficial to the pia mater.
3. Arachnoid mater: the middle layer which is characterised by transparent and gelatin-like appearance.
During a marathon, runners draw heavily on their internal reserves of glycogen (carbohydrate) and triglycerides (fat) to fuel muscle contraction. Initially, energy is derived mostly from carbohydrates, with increasing amounts of fat being used as the race progresses. If runners use up their muscle glycogen reserves before they finish the race, they hit what is known as "the wall.," a point of diminished performance that arises because fatty acids from triglyceride breakdown cannot be delivered to the muscles quickly enough to sustain maximum effort. One trick that marathon runners use to avoid the wall is to drink a cup of strong black coffee an hour or so before the race begins. Coffee contains caffeine, which is an inhibitor of cyclic AMP phosphodiesterase. How do you suppose inhibition of this enzyme helps them avoid the wall
Answer:
The activity of cyclic AMP phosphodiesterase is prevented by caffeine. The caffeine prevents further dissociation of cAMP, which eventually increases the response within the body. The activity of neurotransmitters, that is, of noradrenaline or epinephrine, gets increased due to enhancement in response.
This further enhances the activity of the heart, the rate of muscle contractions, blood pressure that further helps in delivering more oxygen to the brain, and other parts of the body. Thus, the inhibition of the enzyme cyclic AMP phosphodiesterase helps the athletes to prevent the wall.
At the molecular level, gene duplication often produces novelty in a lineage. This process provides another evolutionary pathway by which a protein can switch functions, without loss of the original function. What analytical approach helped the most to answer the question of evolution in the aldosterone-M receptor pair in the study of Jamie Bridgham and her colleagues
Answer:
Bridgham et al. (2006) showed that the interaction between a steroid hormone (aldosterone-M) and its receptor (mineralocorticoid) evolved by Darwinian gradualism. In this work, the authors demonstrated a primitive affinity between the hormone and its receptor that was initially present in chemically similar but more ancient ligands. This result has implications in understanding the association between gene duplication and the evolution of hormone signaling pathways. For example, in invertebrates, this work reinforces the importance of gene duplication in the existing interaction between paralogous glucocorticoid receptors and their receptor mineralocorticoid genes that were derived from duplication (Thornton 2001).
The publications above cited are the following:
J.T. Bridgham, S.M. Carroll, and J.W. Thornton (2006). Evolution of hormone-receptor complexity by molecular exploitation. Science, 312(5770), 97-101.
JW Thornton. Evolution of vertebrate steroid receptors from an ancestral estrogen receptor by ligand exploitation and serial genome expansions, Proc Natl Acad Sci USA (PNAS), 2001, vol. 98 10 (pg. 5671-5676).
A paved blacktop parking lot was built on what was once a soil-covered field. This area will now experience increased runoff when rain occurs because the paved parking lot has
a. less capillarity
b. greater infiltration
c. greater porosity
d. less permeability
If the area has to experience increased runoff when rain occurs, the paved parking lot has less capillarity.
What is capilarity of soil?The term capilarity of soil has to do with the water holding capacity of soil. The lesser the capilarity of the surface, the greater the capilarity of the surface.
As such, if the area has to experience increased runoff when rain occurs, the paved parking lot has less capillarity.
Learn more about capilarity:https://brainly.com/question/12786977
#SPJ2
John and Jane Jones’ newborn baby girl, Leah, has just been diagnosed with galactosemia. Prior to their genetic counseling appointment, they submitted this family history: John and Jane’s older child, a son named Lee, does not have galactosemia. John is the only child of Hanna and Harry. Harry was an only child. Hanna has two older sisters, Hope (the oldest) and Holly. Both Harry and Hanna’s parents lived in good health into their 80s. Jane’s brother, Joe, is married to Jen. They have a son, Les, who is a
Answer: They have a son , Les who is 9 years old and healthy with myopia but not galactosemia. Les is unaffected with galactosemia.
Explanation:
From the family story, Leah is the only child affected with galactosemia while Les is unaffected and healthy.
Hanna's father and mother have three daughters and they are Hope, Holly and Banana( from oldest to youngest).
Hanan and Harry have an only son called John.
John married Jane and they have two children, Leah and Les.
Leah is girl that is affected with galactosemia and Les who is a boy and he is unaffected with galactosemia.
Jane's mother is Hilda and she has a brother called Joe. Joe married Jen and they have a son called Les.
The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). What is the probability of two parents heterogeneous for a widow’s peak (Ww) having an offspring without a widow’s peak?
Answer:
25
Explanation:
Answer:
75 Percent
Explanation:
Which of the following terms is used to describe the physical characteristics of the individual?
Answer:
there are no answer choices lol
Explanation:
charactistics
physical features
profile
attributes
Phenotype is the term used to describe the physical characteristics of the individual. They are the observatory traits of an organism.
What is phenotype?A phenotype is a set of observable features or attributes of an organism in genetics.
The phrase refers to an organism's morphology, or physical shape and structure.
As well as its developmental processes, biochemical and physiological features, behavior, and behavioral outcomes.
Thus, the term for the physical characteristics of the individual is the phenotype.
Learn more about phenotype
https://brainly.com/question/20730322
how lysosomes may be involved in the removal of the interdigital membrane of the developing mammalian fetus
Answer:
Lysosomes have the function of digesting substances, this function allows it to be involved in the removal of the interdigital membrane of the developing mammal fetus.
Explanation:
Lysosomes are organelles formed by numerous digestive enzymes. These enzymes allow lysosomes to be able to digest substances and even cellular apparatus, when needed.
The digestive function of lysosomes can be observed in the removal of the interdigital membrane of the developing mammalian fetus, by the action of digestive enzymes that have the ability to remove this entire membrane and any other undesirable tissue for the next stages of development of the fetus.
is it a good idea to sterilized thins that are to be sent to the moon
Answer:
Yes, it is a good idea to send the objects on the moon after sanitization or after sterlization so that it not causes harm in any way.
There is a bit different type of environment on the moon and the objects must not be sent as it is on the way.
The objects has to be sterlized so that it does not reacts entering into the moon's environment.
The objects sent on the moon are usually metals and other reactive or non reactive materials that can affect the people carrying the objects, spaceship or via any other means.
So, its better to send sterlized things into the space so that it cannot harm anyone.
Analyze how different concentrations of solutes in a solution can affect organisms cells
Answer:
Well I think that at first it would make it go bad and then it would just end up killing then and harming the organism cells
Explanation:
Hopefully I am right
What defines a hypothesis?
Accepted idea
Educated guess
Observed inference
Testable explanation
Answer:
an observed inference
The correct answer is the second one, educated guess.
Which substance is a compound?
Answer: the options to this question are A: Salt
B: Phosphorus
C: Sulfur
D: Oxygen
Explanation:
The answer will be A: Salt because it is made up of Sodium and Chloride.
Answer:
a
Explanation:
1. When you go outside on a hot summer day, usually your body begins to sweat. Why does
your body do this?
This is because the temperature of body increases and by which the excess water from body comes out from our body in the form of sweat...
What best describes the Frank-Starling law?
a. The Frank-Starling law states that the slower the heart rate, the greater the cardiac output.
b. The Frank-Starling law states that the greater the volume of blood discharged from the heart, the greater the pressure required to discharge the blood.
c. The Frank-Starling law states that the greater the stroke volume, the greater the heart rate.
d. The Frank-Starling law states that the more the ventricular muscle cells are stretched, the more forcefully they contract.
Answer:The Frank-Starling law states that the greater the volume of blood discharged from the heart, the greater the pressure required to discharge the blood
Basically, the FSL states that the greater the stroke volume of the left ventricle will increase, as the volume of the the ventricles increases due to ventricular contraction, leading to systolic contraction.
If the volume of the blood in the Ventricle is increased, the blood volume stretches the ventricular walls and the ventricle contracts.The amount of blood ejected from the ventricle increased(stoke volume).Therefore, the higher the contraction of the ventricles, Myocyte stretch, the more the volume of blood in the ventricle pushed, and the more the amount of the blood ejected from the ventricle as Stroke Volume.
Explanation:
Which statements describe the planets? Check all that apply.
Answer:
planets are celestial bodies which revolutate around the sun
Answer:
A C E F
Explanation:
on Edge
g a true breeding pea plant with round and green seeds was crossed to a true-breeding pea plant with wrinkled and yellow seeds. Round and yellow seeds are the dominant traits. The F1 plants were allowed to self-fertilize. What is the probability that an F2 plant will be green and round?
Answer:
The probability of producing a round and green plant from this cross is 3/16
Explanation:
This question involves two distinct genes coding for seed shape and seed colour. In the seed shape gene, allele for round seeds (R) is dominant over allele for wrinked seeds (r), while in the seed colour gene, allele for yellow seed (Y) is dominant over allele for green seeds (y).
A truebreeding plant means that the plant possesses homozygous genotype. Hence, a truebreeding pea plant with round and green seeds will have genotype: RRyy while true-breeding pea plant with wrinkled and yellow seeds will have genotype: rrYY. These two parents will produce F1 offsprings with genotype: RrYy (heterozygous).
When the F1 offsprings are self-crossed (RrYy × RrYy), the following allelic combinations of gametes will be produced by each F1 parent: RY, Ry, rY, ry
Using these gametes in a punnet square (see attached image), 16 possible F2 offsprings with a phenotypic ratio 9:3:3:1 will be produced
9- Round yellow offsprings (R_Y_)
3- Round green offsprings (R_yy)
3- Wrinkled yellow offsprings (rrY_)
1- Wrinkled green offsprings (rryy)
PLEASE HELP!! In a population, the number of organisms hovers around 10 per acre. When the number goes much higher, the organisms cannot find enough food, and some don't survive. When it goes much below, they thrive and reproduce quickly. What is the limiting factor in this example? *
Answer:
food and land
Explanation:
A limiting factor is the one that limits the growth of any organism’s population. Here the population growth of an organism is limited by both availability of food and land. As the population grows, the food availability gets limited and hence most of the organism die.
But when the population reduces, the food quantity becomes surplus and thus the organisms survive.
Answer: Food and land
Explanation:
That is what it is a limiting factor of because they dont have the neccesary food and land
Suppose you are involved in a project studying a population of Dalea purpurea (purple prairie clover), a diploid, bee pollinated plant growing at Cayler Prairie in NW Iowa. You collect a sample from 100 individuals and assay DNA sequence variation at the apetala locus, which controls floral morphology. You find two distinct sequences: L and S. Individuals that are LL have very large petals, LS plants have medium sized petals, and SS plants have small petals. Your sample of plants yields the following observed and Hardy-Weinberg expected (HWE) genotypic counts:.Genotype: Observed Counts: HWE Counts:LL 14 9LS 32 42SS 54 49a. The population is in Hardy-Weinberg equilibrium, giving no indication of the preferences of the bees.b. LS heterozygotes are favored due to hybrid vigor.c. Bees are preferentially visiting smaller flowers resulting in a reproductive advantage for plants with smaller petals.d. LL genotype plants have a reproductive advantage due to their larger flowers.e. Bees preferentially cross-pollinate flowers of the same size (like size mating with like) resulting in inbreeding with respect to genotypes at the apetala locus.
Answer:
Option E
Explanation:
Bees preferentially cross-pollinate flowers of the same size (like size mating with like) resulting in inbreeding with respect to genotypes at the apetala locus.
Inbreeding increases the frequency of homozygousity and deviates from the assumptions of the hardy Weinberg's principle
state a kidney disease whose symptoms is coloured and turbid urine
Answer:
kidney failure
Explanation:
Answer:
hey show ur penis please please
In plants tall T is dominant to short t .perform the following cross Tt x Tt what is the probability of producing a short plant
25% or 1/4 chance
Explanation:
When crossing these two heterozygous parents, you will get the phenotype 3:1. This means...
75% chance of plant being tall
25% chance of plant being short
Since T is dominant and we are using simple Mendelian inheritance, the heterozygous offspring (Tt) will be tall as well.
This means there is a 25% or 1/4 chance of the plant being short.
~Punnett square and work below for you.
Describe carbon in your own words
a naturally abundant, non-metallic element that occur in all organic compounds and can be found in all known forms of life. diamond and graphite are pure form, and carbon is a major constituent of Coal Petroleum and natural gas. Carbon generally covalent bonds with other atoms in larger molecules.
Categorize each relationship as mutualism or parasitism
The question is unclear, is there more to it?
I cannot answer this question without knowing the circumstances, but it is good to remember that mutualism is where both species and/or participants benefit, and parasitism is where one species benefits and the other one is harmed.
Think of mutualism like the word mutual, so when people say " the feeling is mutual" it means that both parties feel and/or express the same feelings. Parasitism should be thought of like a parasite. When one is infected or has contracted a parasite, the parasite will live off of its host body making it ill or even causing death as it drains resources from its host to benefit itself.
protective tissues includes _____and_____.
Answer:
Explanation:
It includes epidermis and cork. Epidermis : It is usually present in the outermost layer of the plant body such as leaves, flowers, stem and roots. Epidermis is one cell thick and is covered with cuticle. Cuticle is a water proof layer of a waxy substance
Why are nonnative species a threat to biodiversity? Check all that apply.
They provide more niches for animals to live in.
They do not have natural predators to regulate their population growth
They cause the climate in an area to become cooler.
They provide food resources to native organisms.
They compete with native organisms for resources.
Previous Activity
The correct answers are B. They do not have natural predators to regulate their population growth and E. They compete with native organisms for resources.
Explanation:
Nonnative species include any species that does not belong to an ecosystem but was introduced to it. Nonnative species are considered are an important threat to biodiversity and native species because they usually disrupt the natural equilibrium in the ecosystem.
This usually occurs because nonnative species population grow rapidly due to the lack of natural predators; for example, Asian carps which are native from Asia and were taken to the U.S. are eaten by other fish and animals in their native ecosystem, but once they are introduced in another ecosystem their population increases due to lack of predators. Additionally, nonnative species often compete with native species for resources, this also happens with the Asian carp that competes for food such as snails or mussels with native species in the U.S.
Answer:
b,e
Explanation: