Choice B is the right option since the cooling is fast.
The minerals may not have enough room to develop owing to a sudden cooling and therefore their structure is delicate and glassy. The composition of an igneous rock depends on how quickly the magma is cooled when the volcanic eruptions occur. Slow cooling allows big crystals to grow while rapid cooling allows tiny crystals to appear.
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Hope this helps!
Brainliest would be great!
For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis
Answer:
About 8 million
Answer:
About 8 million
Explanation:
Instructions on how to control your cells are contained in what part of the DNA?
Answer:
Genes
Explanation:
The genes are specific fragments of the DNA molecule that contain the information necessary to synthesize different types of RNAs, including messenger RNAs (mRNAs) which are subsequently translated into proteins required for different cellular functions including replication, cell cycle, proliferation, apoptosis, etc. Genes are first transcribed to RNA during transcription. In eukaryotic organisms, the genes contain both exonic and intronic sequences that are jointly transcribed into the primary mRNA, and then the introns are removed during RNA splicing. The genes have a specific initiation signal sequence known as start codon (AUG) and termination codons (UGA, UAA, UAG) that terminates the translation of the mRNA.
Explique cómo podemos hacer para trasladar una caja de 50 kg desde planta baja hasta un primer piso que presenta una inclinación de 40°, que tipo de máquina simple utilizaría.
Answer:
rueda y eje
Explicación:
La rueda y el eje es un tipo de máquina simple que se utiliza para mover las cargas. Consiste en ruedas y un eje que puede levantar cargas pesadas y mover esas cargas de un lugar a otro aplicando menos fuerza. Por lo tanto, la máquina que consta de rueda y eje es la mejor opción para mover una caja de 50 kg desde la planta baja hasta el primer piso que tiene una inclinación de 40 °. Esta caja se puede colocar sobre una máquina simple compuesta de rueda y eje y se puede mover aplicando fuerza desde un lado.
How is cancer related to cell division
Answer:cell division is how cancer spread in the body
Explanation: Cancer cells are mutated and overtake good cells
Some individuals can be heterozygous for a particular mutation.This means that one of their chromosomes is normal and the other is mutated in some way. Approximately ___ of the gametes produced by an individual heterozygous for a deletion will be non viable.
Answer:
1/2 (50%)
Explanation:
During meiosis, homologous pairs of chromosomes are separated in order to form haploid cells, and this separation or assortment is known to be a random process. In consequence, the chromosome carrying the mutation will have a 1/2 (50%) chance of being inherited in the gamete that, after fertilization, produces a non-viable organism. In consequence, the non-mutated chromosome also will have a 1/2 chance of occurring in the offspring
Every animal has a distinct body plan.
Which of these animals has a radially symmetrical
body plan?
Answer:
phyla Ctenophora (comb jellies) and Cnidaria (corals, sea anemones, and other jellies).
Explanation:
Hope it helps.
Answer:
I didn't mean to comment this
Explanation:
Study the equation for photosynthesis.
A scientist notices an increase in the glucose
production in the plants he is studying. What are the
possible reasons? Check all that apply.
6CO2 + 6H2O
Light energy
→ Cg H12O6+ 602
Chlorophyll
The plant was exposed to more intense light
The plant was exposed to less intense light
The plant absorbed more carbon dioxide.
The plant absorbed less carbon dioxide.
The plant absorbed more oxygen.
The plant absorbed less oxygen.
The plant was exposed to more intense light
The plant absorbed more carbon dioxide.
The production of glucose increase in plant cells when the intensity of light is increased and the amount of carbon dioxide absorbed is increased. These affect the rate of reaction.
What is Photosynthesis?Photosynthesis is the process of formation of glucose (sugar) in the green cells of plant. Photosynthesis takes place during the daytime as it requires sunlight to proceed the reaction. The reaction takes place in the chloroplast of plant cells.
Factors which affect the rate of photosynthesis are light intensity and carbon dioxide concentration. Light intensity is directly proportional to the rate of photosynthesis, as the intensity of light increases the rate of photosynthesis also increases.
Similarly, carbon dioxide is also proportional to the rate of photosynthesis as carbon dioxide is a reactant in this process. With the increase in the amount of reactants, the rate of a chemical reaction increases and hence more product is formed.
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How does cross pollination differ from self pollination?
Answer:
Cross pollination:
the transfer of pollen grain from anther to stigma that takes place between two different flowers of the same species.
Self pollination:
the transfer of pollen grain from anther to stigma that takes place at a single flower.
Hope this helps ;) ❤❤❤
Answer:
It assures that there is genetic variety within each plant species.
Explanation:
5000 Thailand natives were tested for their MN blood grouping. This allele has incomplete dominance and analysis indicated a phenotypic distribution of 600M, 4000MN, 400N. What is the frequency of the N allele?
Answer:
0.28
Explanation:
This allele has incomplete dominance and analysis indicated a phenotypic distribution of 600M, 4000MN, 400N.
Using p+q = 1
Where q is the frequency of the N allele-
400N/5000 = 0.08 is the genotypic frequency out of 5000 in total - q²
Thus the frequency of the allele N is √q² = √0.08 = 0.28
The frequency of the N allele is 0.48
What is incomplete dominance?Incomplete dominance occur when a progeny of a particular parents gives or have a phenotype that combines both parents gene.
This phenotype is intermediate of the two parents and often unique.
Total population of Thailand= 5000
Allele P= 600M
Allele pq= 4000MN
Allele Q= 400N
According to hardyweingberg principles,
P+Q= 1
p2+2pq+q2=1
Therefore, to calculate frequency of allele N in the population we have;
N for Q= 400/5000=0.08
N for pq= 4000/5000=0.8
since pq contain both allele q and p in equal proportion we have
N for pq= 0.5*0.8 = 0.4
Frequency of N in allele N and MN is
0.08+ 0.4 = 0.48.
Therefore, the frequency of the N allele is 0.48
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Answer these:
1) What is bone marrow?
2) Where is it located?
3) Can one live without a bone marrow?
4) What is bone marrow made of?
Kratika Please hurry and answer, you have always helped me.
Answer:
These are the answers:
1) Bone marrow is a spongy tissue inside some of our bones.
2) It is located at the ribs, bones of the pelvis and vertebrae,e.t.c.
3) Yes!, A person can live without a bone marrow only if they receive regular blood transfusions.
4) Bone marrow is made up of large bones.
Explanation:
A bone marrow is where new blood cells are produced.
Hope it helps.
Dark skin (a result of increased melanin production in equatorial peoples) is likely a response to ultraviolet (UV) radiation, because UV radiation can cause Group of answer choices skin cancer. hypothermia. rickets. hypoxia.
Answer:
skin cancer
Explanation:
because a human skin system is not evolved to handle the harsh conditions invoked by ultraviolet rays
Cocklebur will not flower if exposed to 8 hours of dark and 16 hours of light. It will flower if exposed to 16 hours of dark and 8 hours of light. However, if the 16 hours of dark is interrupted with a brief period of light the cocklebur will not flower. What triggers cocklebur to flower
Answer:
Photoperiodism
Explanation:
The process explained in the question is called "Photoperiodism" which refers to the plants' reaction to the length of the dark and light period in a day.
When the dark period is interrupted with a certain period of artificial lighting, the plant thinks that the day had a longer period where it's "light" than it is "dark" so it gets tricked into flowering. Same concept can be applied in reverse for the plants who flower during longer periods of dark.
I hope this answer helps.
What can he assume about the number of adenine?
The number of adenine bases will be equal to the number of guanine bases.
The number of adenine bases will be equal to the total of all the other bases.
The number of adenine bases will be equal to the number of thymine bases.
The number of adenine bases will be half of the number of cytosine bases.
Answer:
The number of adenine bases will be equal to the number of thymine bases.
Explanation:
Hope it helps.
according to Chargaff, there is a stoichiometric ratio of pyrimidine and purine bases so, The number of adenine bases will be equal to the number of thymine bases.
Write down three functions of the blood
Answer:
blood has 3 main function which is Transport protection and regulations.
Answer:
Transport, protection, regulations.
Explanation:
A marine biologist discovers a new marine animal that has a coelom, but it does not develop from the mesodermal tissues. Under which category should she classify this animal? A. pseudocoelomate B. acoelomate C. coelomate
B. acoelomate
Hope it helps
Which of the following is an example of adaptive radiation? One population of squirrels becomes two separate species over a long time. One population of lizards forms 15 separate species over a short time. One species of birds becomes better suited to its environment over time. One species of fish forms when two species of fish begin to breed with each other.
Answer:
B. One population of lizards leads to 15 separate species over a short time.
Explanation:
Adaptive radiation is a process in which organisms diversify rapidly into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges and opens environmental niches.
Adaptive radiation occurs when a single ancestral species diversifies into a variety of different species, each with different adaptations to fit different ecological niches.
When does the adaptive radiation occur ?This often occurs when a group of organisms colonizes a new, relatively unexploited environment, and the different ecological niches available in that environment drive the evolution of different adaptations in different subgroups.
The example of one population of lizards forming 15 separate species over a short time is a classic example of adaptive radiation. In this case, the ancestral population of lizards likely colonized a new area with many different ecological niches.
Over time, different subgroups of lizards evolved adaptations that allowed them to exploit these niches in different ways, leading to the diversification of the group into many different species.
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PLEASE HELP ASAP
What are the three stop codons? What is the start codon?
Answer:
UAA, UGA and UAG are the stop codons.
And AUG or methionine is the start codon.
Explanation:
Hope it helps.
Which description refers to fog? burns off when it gets dark extends up to 10 miles into the sky is found in areas near bodies of water forms when the ground warms at night after a cool, dry day
Answer:
forms when the ground warms at night after a cool, dry day
Explanation:
fog forms when the ground is cooler then the air around it
Answer:
[tex]\large \boxed{\mathrm{is \ found \ in \ areas \ near \ bodies \ of \ water}}[/tex]
Explanation:
Fog forms when water vapor condenses to tiny droplets of water. The moisture that creates fog is produced from nearby or at bodies of water.
A triglyceride molecule consists of: a. two trans-fatty acids attached to a sterol molecule b. three fatty acids attached to a molecule of glycerol c. three sterol molecules bonded to a molecule of glycerol d. three glycerol molecules e. three trans-fatty acids attached to a sulfur atom
Answer:
d. three glycerol molecules
Explanation:
Hope it helps.
Which of the following is an example of succession in an ocean ecosystem?
Answer:
hydroseres
Explanation:
and for land xeroseres
What is the cause of humanity?
Explanation:
the cause of humidity is the various thought of the people
How could gene therapy be used to treat diseases caused by mutated genes?
A. It could deliver a corrected version of a gene to a person's cells.
B. It could infect a person with a virus that is more harmful than the
mutation
O C. It could change a few bases in a piece of mutated DNA in only one
cell.
D. It could change genes in an individual so that offspring cannot get
the disease.
Answer:
a
Explanation:
PCR is used to – DNA. It uses – to separate a DNA molecule, and then uses a(n) – to start – at a point selected by scientists. This technique can produce millions of – of a targeted DNA sequence.
Answer:
The correct answer is - amplify, heat, primer, replication and copies.
Explanation:
Polymerase chain reaction is known as PCR. PCR is also known as a method that rapidly produce millions to billions copies of atargeted DNA sequence. It is widely used method for the separation of small DNA and amplify it to large amount to study by scientists.
So, the missing parts of the paragraph would be -
PCR is used to amplify DNA. It uses heat to separate a DNA molecule, and then uses a primer to start replication at a point selected by scientists. This technique can produce millions of copies of a targeted DNA sequence.
Thus, the correct answer would be -amplify, heat, primer, replication and copies.
Collections of lymphoid tissues, called MALT, are strategically placed throughout the respiratory, digestive, and genitourinary systems. Which one of these is located at the end of the small intestine?
a) appendix
b) Peyer's patches
c) tonsils
How are vertebrates different from invertebrates?
Answer:
Vertebrates are those that have backbones or vertebral column, and invertebrates are those that do not have backbones or vertebral column.
Answer:
Vertebrates are those that have backbones or vertebral column and they dont
Explanation:
PLEASE HELP ME I WILL MAKE YOU BRAINLIEST!!!!!!! Need help with number 31!!
Explanation:
A is 6H2O
B is C6H12O6
C is 6O2
Plz plz, answer it .answer it.
Answer:
B
Explanation:
The correct answer is B through the process of elimination. It can't be A since if you were looking through a telescope, you wouldn't actually see the entirety of Earth, itself, revolving around the Sun. It can't be C either since even if the church in the 17th century advocated it, it still isn't supported. It can't be D either since it isn't supported as well. No pieces of evidence are given besides the scientists agreeing on one single answer. However, B has proof of how they agreed on it.
Which of the following is false? Unselected Under normal conditions, blood PO2 affects breathing only indirectly. Unselected Changes in arterial pH resulting from CO2 retention or metabolic factors act through the peripheral chemoreceptors. Unselected When arterial PO2 falls below 60 mm Hg, it becomes the major stimulus for respiration. Unselected Oxygen levels are the primary stimulant of respiration.
Answer:
The sentence that says: Blood PO2 affects respiration only indirectly, IT IS FALSE, since the partial pressure of oxygen gas together with carbon dioxide are factors that DIRECTLY affect respiration.
The sentence that says: Unselected changes in arterial pH as a result of CO2 retention or metabolic factors act through peripheral chemoreceptors. It is FALSE, since the central chemoreceptors together with the peripheral ones can detect the metabolic acidosis generated by the CO2 retention, this is how the CNS receptors capture the CO2 that crosses the blood-brain barrier and stimulates hyperventilation to compensate for this phenomenon and increase the plasma concentrations of partial oxygen pressures.
The sentence that says: in selecting When arterial PO2 falls below 60 mm Hg, it becomes the main stimulus for breathing, IT IS FALSE, since it not only encourages ventilation to promote oxygenation but also activates the renin-angiotensin-aldosterone in order to recover blood volume and thus achieve adequate blood pressure.
In addition, hypovolemia triggers tachycardia and weakening symptoms, which is why the drop in blood pressure is not the main stimulus for breathing.
Explanation:
Breathing is promoted by muscle contraction, medium and high temperatures (that is, in hot or hot climates), partial concentrations of oxygen and carbon dioxide both in the atmosphere and in our blood, and in situations of systemic imbalances such as metabolic acidosis or alkalosis.
A leukemia patient may suffer from low blood platelet count. What might occur because of the lack of platelets in the patient's blood?
A. The patient may develop lesions in the vein and artery walls where large clots will obstruct blood flow.
B.The patient may have internal bleeding and cuts may not stop bleeding.
C. The patient may suffer from many infections which could affect heart rate and blood pressure.
D. The patient may feel excessively tired because the blood cannot carry enough oxygen.
Answer:
B. The patient may have internal bleeding and cuts may not stop bleeding.
hopefully this helped :3
Answer:
Answer:C) The patient may have internal bleeding and cuts may not stop bleeding.
Explanation:
Platelets are cells that form scabs to help stop the bleeding of wounds. When you have low platelets, you can have fewer scabs at a time, so wounds will bleed more. If you have dangerously low platelets, any wound you have will not close and you will not stop bleeding without outside help.
which following pairs of body functions are normally involuntary actions but can be controlled voluntary for a short periods of time
Explanation:
Medulla oblongata controls consciousness and arousal (the reticular formation) and its three vital reflex centers control the blood vessels diameter, heartbeat and breathing rate (the involuntary actions). This makes option D correct. The lower part of brain stem forms the hind brain which comprises of medulla oblongata, pons and cerebellum. This makes option C incorrect as medulla is not part of forebrain. Cerebellum is the convoluted subdivision of brain stem and is associated with coordination of muscular movement, muscle tone and balance i.e. the voluntary actions. Option B is incorrect. Spinal cord, along with brain, forms central nervous system which serves to integrate the sensory inputs from internal and external environment as received by sensory neurons and process and finally transmit the nerve impulses to effectors (muscles and glands). This makes option A incorrect.
