Answer: The human genome consists of 23 pairs of chromosomes. There are therefore 223 different kinds of gametes that one individual can produce.
Explanation:
I learned 'bout this-
What would happen if there were no condensation stage in the water cycle?
answer : there would be no rain.
Anaerobic prokaryotes use what
to obtain energy.
Answer:
they use anaerobic respiration in the absence of oxygen
what is the menstrual cycle
what do you mean by the chromatin fibres ?
Hey buddy I am here to help!
Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.
Hope its helps!
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wich best describes how mRNA is used by a cell
Explanation:
where are options??????????????
?Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein ...
Answer: Pretty sure its option D that is the correct answer. Transcription of DNA results in the formation of mRNA. A polypeptide chain is formed when codon sequences of DNA reach the ribosome, delivering DNA sequences to the ribosome.
Explanation:
I can't see the choices but I've done this activity before and that's how I know
.5km/sec north by northwest is an example of
speed
acceleration
velocity
distance
Answer:
The answer is Distance.
Cellulose is found throughout the cell wall of plant cells so cellulose make cells walls Ridgid which indicates that Cellulose is a
Which of the following is TRUE about the movement of earth's plates?
A. They do not move because they sit on a layer of solid rock
B. They move along with the layer of slightly softened rock below them
C. They move by floating on a layer of completely melted rock below them
D. They do not move until the solid rock layer beneath them temporarily melts and moves
Answer:
c
Explanation:
the tectonic plates or the crust of the earth sit on molten rock moving across the planet with causes the plates to move causing things like earthquakes and volcanos
Movement of Earth's plate can be due to many reasons and can cause many disasters. They move along with the layer of slightly softened rock below them
What is the 3 causes of this movement?Earth's plates move due to the intense heat in the Earth's core. This causes the movement of soften rock in the mantle layer.
It moves in a convection cell pattern that forms by rising of warm, cooling and then sinking down of material.
The Earth's plates move by floating on a layer of completely melted rock below them.
Thus, the correct option is B.
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1. The first person to observe cells was?
Answer:
robert hooke
Explanation:
how does secondary succession differ from primary succession? it begins on bare rock or land, it begins where no plants have grown, lichens and mosses form soil first, soil nutrients are already in place
in georgia or in the crib
Answer:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
What does a two direction arrow indicate in a chemical equation
Answer:
reversible reaction
Explanation:
The double arrow denotes a reversible reaction. The reactants become products and the products can become reactants again using the same process.
can the enzyme DNA polymerase be used to break down or build lactose?
In a large population of sea stars, half of the individuals possess the red allele and half possess the purple allele. A change in the genome has been introduced, and many of those with purple allele are dying. Therefore, the red allele has become more frequent over time.
Which of the following requirements for the Hardy-Weinberg equilibrium is not being met?
Answer:
A
Explanation:
All mating must be totally random
Hardy-Weinberg equilibrium is a mathematical model that describes the genetic equilibrium of a population in terms of allele frequencies. It states that allele frequencies in a population remain constant over time in the absence of any evolutionary forces.
What are the requirements of the law ?In order for this balance to be maintained, five basic requirements must be met: large population size, random mating, no mutations, no migration, and no natural selection. In this case, the starfish population does not satisfy the fifth requirement for no natural selection.
Natural selection occurs as individuals with the purple allele die off, resulting in the red allele becoming more common over time. This type of directional selection causes allele frequencies to deviate from Hardy-Weinberg equilibrium.
Therefore, no natural selection requirement is met in this starfish population. This causes allele frequencies to change over time, leading to a deviation from Hardy-Weinberg equilibrium.
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Which type of bond forms between water molecules?
Answer:
Hydrogen Bonds
Explanation:
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--------------------------------------------------------------------------------------------------------------Question: Which type of bond forms between water molecules?
--------------------------------------------------------------------------------------------------------------Answer: Water is polar, and the dipole bond it forms is a hydrogen bond based on the two hydrogen atoms in the molecule. Hydrogen bonds are especially strong because the hydrogen atom in molecules such as water is a small, naked proton with no inner electron shell.
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When you have corona virus what is the main body system that is being affected? How does it affect other systems?
The endosymbiosis hypothesis is supported by all of the following pieces of evidence except the fact that Group of answer choices chloroplasts reproduce through a splitting process like certain prokaryotes. mitochondria have circular DNA like prokaryotes. chloroplasts have ribosomes like prokaryotes. mitochondria lack ribosomes like prokaryotes.
Answer:
The correct answer is - mitochondria lack ribosomes like prokaryotes.
Explanation:
The Endosymbiotic Theory says that mitochondria and chloroplast in eukaryotic cells are developed by the once aerobic bacteria that were engulfed by a large anaerobic bacteria.
This theory suggests the origin of eukaryotic cells. Various evidence exists such as mitochondria and chloroplasts contain their own circular DNA like prokaryotic cells and mitochondria and chloroplasts have 70S ribosomes like prokaryotes have.
what can scientists learn from radiometric dating?
A- how long ago a plant or animal lived
B- how much time it took a fossil to form
C- where a plant or animal lived
D- whether a fossil has modern relatives
Answer:
Radiometric dating is used by geologists to determine the age of rocks and the ages of fossils found within them.
Answer:
It is how long ago a plant or animal lived or answer A.
Explanation:The more of certain item in a cell such as carbon or something like that each one is like I don't know like 100,000 years ago hope this helps.
what is a function of ATP?
Answer:
Explanation:
Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. ... In addition to providing energy, the breakdown of ATP through hydrolysis serves a broad range of cell functions, including signaling and DNA/RNA synthesis.
If something is 12 grams and has a volume of 1.6 cubic centimeters, how many grams per cubic centimeter.
Answer: 7.5 grams per cubic centimeter.
Explanation:
We area given that , Mass of something is 12 grams
Volume of that thing is 1.6 cubic centimeters
To find gram per cubic centimeters, we will divide Mass by Volume ( which computes Density)
Number of gram per cubic centimeters = [tex]\dfrac{12}{1.6}[/tex]
Number of gram per cubic centimeters = 7.5
Therefore, 7.5 grams per cubic centimeter. (density of the thing)
Los métodos hormonales son eficientes porque: * A: impiden la entrada de los espermatozoides C: Se inhibe (no se desarrolla) la ovulación B: El óvulo jamás se encuentra con el espermatozoide D: Los espermatozoides quedan atrapados y no llegan al óvulo
Answer: C: Se inhibe (no se desarrolla) la ovulación.
Explanation:
Los métodos anticonceptivos se utilizan prevenir el embarazo no deseado, evitando que el esperma fertilice a un óvulo. Hay distintos tipos, los cuales se clasifican en:
Anticonceptivos hormonales: Contienen hormonas, tales como estrógeno y progesterona, que previenen la ovulación (es decir, la liberación de óvulos de los ovarios). De esta manera, al no haber óvulo disponible, por mas que hayan espermatozoides, no va a ocurrir ninguna fecundación. El método mas conocido es la píldora o pastilla anticonceptiva. Anticonceptivos de barrera: Proveen una barrera física que impide la fecundación al impedir el encuentro entre el óvulo y el espermatozoide. Por ejemplo, el uso de preservativos o condones. En estos métodos, se impide la entrada de los espermatozoides, no se encuentran con el óvulo y la esperma queda atrapada dentro del condón. Anticonceptivos permanentes: Proveen un método permanente como por ejemplo el Dispositivo Intrauterino que se coloca en el tracto uterino con una vida media de meses o años y posee un efecto espermicida que mata a los espermatozoides (por lo que no lograrán encontrar un óvulo). Otro ejemplo es la vasectomía, la cual es una cirugía que corta los conductos deferentes que transportan a los espermatozoides por lo que ya no pueden salir de los testículos para producir la fecundación (quedan atrapados dentro de los testículos, no entran al tracto uterino y no encuentran al óvulo)Tanto los métodos de barrera como los permanentes, no inhiben la ovulación aunque si impiden que el óvulo se encuentre con el espermatozoide. Entonces, los métodos hormonales son los únicos que logran inhibir la ovulación. Las píldoras que poseen las hormonas previamente mencionadas pero fabricadas sintéticamente. Las mismas mimetizan el efecto de las hormonas naturales producidas por el cuerpo, alterando el ciclo menstrual regular y así evitan el embarazo ya que no habrá óvulo disponible para fecundar. Además, también pueden alterarla mucosidad en el cuello del útero para que los espermatozoides no pueden atravesarlo y llegar al óvulo. De todas maneras, el objetivo principal y mas importante de los métodos hormonales es bloquear la ovulación.
When we ingest food containing large molecules such as lipids, carbohydrates,
and proteins, these molecules must undergo catabolic reactions whereby enzymes
split these into smaller molecules. This series of reactions is
A. absorption.
C. chemical digestion.
B. secretion.
D. mechanical digestion.
what phase of mitosis is shown in the diagram..?
(Please can anyone help me out0
Answer:
Telophase
Explanation:
It is the phase right before the cells split, but theyre fully developed, this is just to get to the character requirement so dont mind this.
What are wildfires? (With detail)
Answer:
A wildfire is an unplanned fire that burns in a natural area such as a forest, grassland, or prairie. Wildfires are often caused by human activity or a natural phenomenon such as lightning, and they can happen at any time or anywhere. In 50% of wildfires recorded, it is not known how they started.
Answer:
sự kiện lửa phát sinh trong một khu rừng, tác động hoặc làm tiêu hủy một số hoặc toàn bộ các thành phần của khu rừng đó.
Explanatin
Which three statements contain information about cats that is based on scientific knowledge rather than opinion?
Answer:
First claim '' cats are very smart animal''. Second claim '' cats make bonds with humans''
In a haplodiploid mating system, how can the coefficient of relatedness between two sisters be 0.75 (75%)? Females are haploid, and they pass on 100% of their genes, whereas males are diploid and pass on 50% of their genes, meaning that the coefficient of relatedness is 0.75. Females can reproduce asexually, meaning they produce clones, and those clones share on average 75% of the genes of their sisters. If a queen mates with a single drone, then all the resulting females have all of the same genetic contribution from the male, since males are haploid and contribute 100% of their genes. Male and female bees are both diploid. The males contribute 100% of their genes to their offspring, and females contribute 50%. Therefore, each female offspring shares 75% of her genes with her sister siblings on average.
Answer:
If a queen mates with a single drone, then all the resulting females have all of the same genetic contribution from the male, since males are haploid and contribute 100% of their genes
Explanation:
Haplodiploidy is a type of sex-determination system where males are haploid (i.e., they contain only a set of chromosomes 'n') and develop from unfertilized eggs, whereas females are diploid (i.e., they contain two complete sets of chromosomes '2n') and develop from fertilized eggs. The bees show this haplodiploid system of sex determination, which is quite common to many hymenopterans. In bees, workers and queens are diploid (2n) females and contain 32 chromosomes, a set of 16 chromosomes is contributed by the queen's egg, and another set of 16 chromosomes is contributed by the drone sperm (16 + 16 = 32 chromosomes). On the other hand, drones are haploid (n) males and contain only one set of 16 chromosomes, which is exclusively contributed by the queen's egg.
Anyone know this problem?
Answer:yoda
Explanation:
animais que dependem parcialmente da água - necessitam de ambientes úmidos para evitar a dessecação da pele e para botar seus ovos, pois a casca não é resistente a perda de água. a descrição refere-se a qual grupo de vertebrados?
a) aves
b) mamíferos
c) répteis
d) anfíbios
e) peixes
pfv ajudem
vo contra pro psor que tu ta pegando resposta no brainly
How is pH measured?
A. It is based on a scale of o to 14.
B. It is a percentage between 1 and 100.
C. It is a level between 1 and 4.
D. It is a decimal between 0 and 1.
How do white blood cells protect the body against infections
Answer:
White blood cells, which are also called leukocytes or white corpuscles, are a cellular blood component that does not include hemoglobin, have a nucleus, are motile, and protect the body from infections and diseases through ingestion of foreign materials and cellular debris, destruction of infectious agents and cancer cells or production of antimicrobials.
Explanation:
There are 4,500 to 11,000 cells in the white blood of a healthy adult person per cubic mm of blood. During the day, fluctuations in the number of white cells take place; lower values during rest and higher during exercise are attained. The quantity of white cells increases abnormally, while the number decreases abnormally, Leukopenia.
Intensive physical activity, seizures, extreme emotional response, pain, pregnancy, labor, and specific conditions such as infections and intoxications may increase the counting of white cells. In reaction to some types of infections or medication, or in conjunction with certain illnesses such as chronic anemia, malnutrition, or allergy, the number may drop.
what happens to one's body when they starve
there hungry
...................
Answer:
The body lacks a proper circulation of oxygenated blood, hence abnormality in respiration.
