Answer:
The magma cools very slowly. As magma cools minerals are formed into an interlocking arrangement producing an igneous rock. As magma cools it undergoes reactions that form minerals. The rate of cooling is very important.
Explanation:
hope this helps
SOMEONE HELP ME WITH THIS QUESTION
Answer:
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Explanation: there:)
Indicate whether each of the following statements is true of depurination (DP), deamination (DA), or pyrimidine dimer formation (DF). A given statement may be true of any, all, or none of these processes. This process is caused by spontaneous hydrolysis of a glycosidic bond. This process is induced by ultraviolet light. This can happen to guanine but not to cytosine. This can happen to thymine but not to adenine. This can happen to thymine but not to cytosine. Repair involves a DNA glycosylase. Repair involves an endonuclease. Repair involves DNA ligase. Repair depends on the existence of separate copies of the genetic information in the two strands of the double helix. Repair depends on cleavage of both strands of the double helix.
Answer:
- This process is caused by spontaneous hydrolysis of a glycosidic bond: depurination and deamination
- This process is induced by ultraviolet light: pyrimidine dimer formation
- This can happen to guanine but not to cytosine: depurination
- This can happen to thymine but not to adenine: pyrimidine dimer formation
- This can happen to thymine but not to cytosine: none
- Repair involves a DNA glycosylase: deamination
- Repair involves an endonuclease: depurination, deamination and pyrimidine dimer formation
- Repair involves DNA ligase: depurination, deamination and pyrimidine dimer formation
- Repair depends on the existence of separate copies of the genetic information in the two strands of the double helix: depurination, deamination and pyrimidine dimer formation
- Repair depends on cleavage of both strands of the double helix: none
Explanation:
Depurination is the loss of purine bases (either adenine or guanine), while deamination refers to the removal of an amino group. During depurination, a β-N-glycosidic bond is cleaved by hydrolysis and a nucleic base is released (either adenine or guanine). All DNA bases may undergo deamination, except thymine (since thymine does not have an amino group). The ultraviolet (UV) radiation can cause thymine or cytosine to form dimers (e.g., pyrimidine dimers), being thymine dimers the most common lesion when DNA is exposed to UV light. Pyrimidine dimers may be repaired by different excision mechanisms, e.g., nucleotide excision repair, where the recognition of the DNA damage leads to the removal of the DNA fragment containing the lesion. DNA glycosylases are enzymes involved in the mechanism of base excision, these enzymes recognize and remove damaged bases by hydrolysis of the glycosidic bond, producing an abasic (apurinic and apyrimidinic) site. A DNA ligase enzyme covalently joins two DNA molecules by forming a phosphodiester bond, which is required during these processes.
AG CLASS HELP!!!!!!
Disney World employees 750 horticulturists and 30 nursery professionals to keep the parks 4,000 acres meticulously groomed.
True
False
Answer: True
Explanation:
U can add 750 to 30 and see how much u get and add that number to 4,000 and see how many acres meticulously were groomed.
In North America, the eastern spotted skunk mates
in late winter, and the western spotted skunk mates
in late summer. Even though their geographic
ranges overlap, the species do not mate with each
other. What most likely prevents these two species
from interbreeding?
A. habitat isolation
B. gametic isolation
C. geographic isolation
D. reproductive isolation
Reproductive isolation is a mechanism through which species do not get to interbreed. Option D. reproductive isolation
What is reproductive isolation?This is a mechanism through which different species or populations do get to mate and produce fertile offspring. This mechanism allows the accumulation of genetic differences and favors speciation.
There are different barriers that inhibit or interrupt the genetic flow between different species.
Reproductive barriers prevent mating between two or more species. There are two types of barriers,
prezygotic ⇒ that avoids fertilization between individuals of different species, postzygotic ⇒ that impedes the zygote to develope and reach the adult stage.Pre-copulatory o pre-ziygotic:
• Ecological or by habitat isolation;
• Seasonal or temporal;
• Séxual o ethologic;
• Mechanic;
• Gametes incompatibility.
Postzygotic mechanisms or barriers include
• Hybrid inviability,
• Hybrid sterility,
• Cytoplasmic interactions.
In the exposed example occurs a seasonal difference between the mating period of the eastern spotted skunk and the western spotted skunk.
Probably, if both of them would mate during the same season and in the same area, they could reproduce.
However, since their mating season differs, individuals from each species do not get to cross and hence, produce fertile offspring.
Option D. reproductive isolation is what most likely prevents these two species from interbreeding
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A scientist does an experiment in which she removes the offspring of rats from their mother at birth and has her genetics students feed and rear the offspring. Assuming that the students do not lick and groom the baby rats as the mother rats normally do, what long-term behavioral and epigenetic effects would you expect to see in the rats when they grow up
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Answer:
Instant special device to reduce nitrates runoff from the power plant and! cost :$500. 000
do you guys no what dose-response relationship means
Some of the largest, and most beautiful, natural crystals of
can be found in the Naica mine.
a) Gypsum
b) Diamond
C) Limestone
d) Quartz
Answer: c)limestone
Explanation:
Please please please help me FAST
FAST
Answer: Mollusks
Explanation:
I think
Answer:
QUESTION:
Please please please help me FAST FAST
ANSWER:
Squid are members of the class Cephalopoda, subclass Coleoidea. The squid orders Myopsida and Oegopsida are in the superorder Decapodiformes (from the Greek for "ten-legged").
Class: Cephalopoda
Phylum: Mollusca
Subclass: Coleoidea
Superorder: Decapodiformes; Leach, 1817
Explanation:
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The periodic table ____
a.) is arranged by atomic mass
b.) was developed by early alchemists
c.) is arranged by number of protons
d.) is divided into vertical periods and horizontal groups
Answer:
D.
Explanation:
The periodic table is divided into vertical periods and horizontal groups
PLEASE ANSWER I NEED HELP
Answer:
this would be B
Explanation:
a oceanic crust is denser than a continental crust
What are each of these blood vessels responsible for when it comes to transporting blood in the body?
Arteries
Capillaries
Veins
Definition: This is a highly developed and specialized organ that is an extension of the central nervous system, and functions to take in information and help send it to the brain. Example: eye, tongue, antennae
Answer:
Sensory Organs
Explanation:
got it correct
Leigh's disease is a mitochondrially inherited disease with symptoms that include seizures, fatigue, impaired reflexes, breathing problems, and ataxia. The pedigree shows the presence of Leigh's disease in three generations. Individual 4 had two daughters and one son, and individual 6 had one daughter and two sons. Which of the individuals indicated are affected by Leigh's disease
About the question:
You will find the pedigree in the attached files
Answer:
individual 4 → Affected woman → Black circleindividual 5 → Affected woman or man → Black circle or squareindividual 7 → Healthy woman → Empty circleindividual 10 → Affected boy → Black SquareExplanation:
Mitochondrial inheritance is the transmission of a disease or a trait from the maternal line.
Most of the DNI is in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly transfer mitochondrial genes to the progeny, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this mitochondrial DNI, the whole progeny of the mutated woman will be affected, as they will get the mother genotype carrying the mutation. On the contrary, if an affected man is carrying a mutation in mitochondrial DNI, non of their descendants will get the disease.
Before answering the question, let us remember the pedigree symbols.
Squares represent Males/Men Circles represent Females/WomenEmpty symbols represent healthy/non-affected individualsSolid black symbols represent sick/affected individualsIn the exposed pedigree, we can see that the mother is affected by the disease (individual number 2), so all her children are also affected (individuals 4, 5, and 6) because the disease is mitochondrially inherited.
Individual 3 is a healthy man, so individual 4 must be an affected woman (Black circle). As she is the one affected, then all her children will also be affected. This couple had one boy and two girls. Individuals 8 and 9 are girls (circle), so individual 10 must be the affected boy (black square).
On the other hand, individual 6 is an affected man (black square), son of individuals 1 and 2. This man couples with a woman, and they have all healthy children. So this woman (individual 7) must be healthy. Even though the man is affected, all their children are not because their mother (7) is not. Remember that sperm cells do not transmit the mitochondrial genes to the progeny.
And finally, individual number 5 might be either a man or a woman. In any case, this person is also affected by Leigh's disease.
Given the present condition of the country and based on your own observation,would you consider the philippines an effective,weak, or failed state?why?
Answer:
Weak.
Explanation:
The Philippines is a weak and financially poor country due to its current condition. The main reason for its weak state is due to the poor economy that is responsible for its weak state. The environment is not favourable for the investors and business due to costly facilities that prevent the investors to invest in the country. If the environment for the investor is good so the investors come to the country and contributes in the economy which make the financial situation of the country better.
Rainforests are not found in
a. Alaska
b. Greenland
C. Australia
d. Africa
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Greenland
Explanation:
Rainforests are found in Alaska, Australia, and Africa, but not Greenland.
I have to write an acrostic poem for the word mutation. This is for science please help me ASAP!!
Mistakes not corrected during DNA Replication
Universal genetic code
Transcription and Translation
All amino acids after a Frameshift mutation are changed
They can either change one base or delete or add another
Ionizing radiation can induce mutations
Of course sometimes mutations don't change the amino acid sequence
Noncoding DNA Strand is complimentary to RNA
How does the photolysis of water benefit the biosphere?
What are the traits or an organism called ?
Answer:
Explanation:
The observable traits expressed by an organism are referred to as its phenotype. An organism's underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype.
Choose the term that best matches the description given.
This is an illegal immigrant who paid for assistance in coming to this country and obtaining a job:
forensic nurse examiner
Identi-KIT
forensic photographer
victim of human smuggling
How can the application of insecticides and herbicides affect an individual’s health? a. Insecticides and herbicides can potentially contaminate foods. b. Insecticides and herbicides increase the disease rate of agricultural plants. c. The application of herbicides and pesticides reduces the vitamin content of crops. d. Herbicides and insecticides increase the health value of crops by adding necessary nutrients.
Answer: A. Insecticides and herbicides can potentially contaminate foods.
Answer:
the answer is A
Explanation:
edge 2021
Which of the following tests are used to diagnose the presence of HIV? pap smears Western Blot & ELISA Eastern Blot & HISA Pregnancy tests
Answer:
ELISA Eastern Blot
Explanation:
i need some help on this.............
Answer:
a) Beaver-dam buildings → (iii) Pond floods
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
f) Coyote disease decreases the population → (vi) Mice population explodes
Explanation:
a) Beaver-dam buildings → (iii) Pond floods
This is an example of how some species might produce damages in ecosystems. Beavers are known for their dams, where they hide from predators, find shelter, reproduce, and feed. With time, and as the beaver population grows, these dams get bigger each time. These animals keep cutting down trees and covering some wider areas that were inhabited previously by other species. The landscape changes, these areas get flooded permanently, most vegetation dye, the soil properties get altered, and just a few species can keep living there. The ecosystem changes.
b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor
This is an example of biological succession. Stable forests characterize as having big old trees that compete for light developing big canopies at heights. Poor light reaches the ground and allows some smaller species to grow. When a fire occurs, some of these trees might fall or disappear. These fire events open windows in the forest through which sunlight directly reaches the ground. Many new species can germinate and grow. There occurs a renovation of vegetable species in the forest and the consequent renovation of other living forms.
c) Lack of rainfall → (ii) Zebras migrate farther to find water holes
It is not unusual that some species need to migrate looking for food or water. In certain areas, seasonal differences are very sharp, and while some periods characterize as producing plenty of food and water, some others characterize as lacking them, dry seasons especially. Animals develop different strategies to face these moments. Zebras need to migrate to find a new source of water to ensure proper hydration.
d) Invasive water plants arrive → (iv) Sunlight is blocked for native seagrasses
A very known global environmental problem is the damage caused by invasive species. In a few words, exotic species arrive in a new area out of their native distribution range, establish, grow, adapt, and reproduce. These exotic species turn into invasive species when they overgrow, sharply increasing their reproductive rate. At this point, interaction with native species becomes harder, competing for resources such as space, light, food, shelter, water, among many others. Invasive species become such a good competitor that end by displacing native species. In the exposed example, invasive water plants arrive, and their population overgrows. They compete for light with native seagrasses and end by blocking it for them.
e) Grasshopper outbreaks → (v) Crops are wiped out along the prairie
This is an example of the prey-predator relationship. In this case, grasshoppers are the predators, and crops are acting as the prey. Whenever one of the population increases in size, the other one follows this increase, causing the decrease of the first one. When the first population decreases, the second one also decreases. In this example, grasshopper outbreaks, meaning an increase in predation rate over crops. Many more individuals are feeding on the crops, causing more damages to the plants´ population. Crops do not have enough time to recover, so they are wiped out.
f) Coyote disease decreases the population → (vi) Mice population explodes
This is also an example of the prey-predator relationship. In this case, coyotes are the predators, and mice are acting as the prey. As coyotes are affected by the disease, which causes a decrease in their population size, mice seem to be favored, as they are not predated. They have enough time to recover as a population and increase in size. Coyotes´population decreases in size, so there are many fewer individuals feeding on mice, and hence, the mice population increases very fast. It explodes.
the outcome of cell signaling is...
a. altered cell shape and movement
b. all outcomes listed here
c. altered gene expression
d.altered cell metabolism
Give 2 exampes of Density Independent factors that can kill off organisms.
Answer:
Factors include: food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size. All species populations in the same ecosystem will be similarly affected, regardless of population size. Factors include: weather, climate and natural disasters.
Explanation:
This sentence explains the production and movement of energy in the sun and the flow of energy from the sun to earth. drag each item to the correct location. Answers may be used more than once. (2 points)
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:I just took the quiz! All answers are correct
Answer:
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:
What is the only place in cells where oxygen, enzyme, and food molecules can combine to release energy
Answer:
Cellular Resperarion
Explanation:
Answer:
During this stage, each pyruvate molecule in the cytoplasm enters the mitochondrion, where it is converted into acetyl CoA, a two-carbon energy carrier, and its third carbon combines with oxygen and is released as carbon dioxide.
PLZ HELP ILL MARK A BRAINIEST 10 Pts
Blood type analysis is used frequently as evidence in paternity suits. Consider the following
hypothetical cases presented in the table. The blood type of the mother and child are given; indicate which
blood type(s) MUST be the father's for each situation.
Answer:
Row 1: Any blood type except AB
Row 2: Blood type A/AB
Row 3: Any blood type except AB
Row 4: Any blood type
Row 5: AB/B
Explanation:
1. If the blood type was AB for the first one (two dominant alleles) then O could not appear as it is recessive.
2. The blood type must contain at least one A allele as AB is obtained from I^A and I^B (already provided by the mother).
3. Once again, the blood type must carry at least one recessive O allele for the O blood type to occur in this child.
4. As long as the blood type either carries a recessive O or another B, the blood type will result in a B.
5. The blood type of the father must contain at least one B for the child to have a B blood type.
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What part of the plant produces fruit and seeds?
Stem
Leaves
Stamen
Pistil
Answer:
pistol
Explanat oops ion:
pew pew
The part of the plant that produces fruit and seeds is the pistil. The Pistil is the ovule producing part of a flower, where a mature ovary is a fruit, and the mature ovule is a seed.
What do you mean by Seeds?Seeds may be defined as the unit of reproduction of a flowering plant, capable of developing into another such plant.
Flowers are the parts of the plant that are responsible for the production of fruits and seeds. The part of the flower that becomes a fruit is called the ovary.
Therefore, the part of the plant that produces fruit and seeds is the pistil.
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