Lake Nyos and the surrounding land in northwest Cameroon appear to be completely dead. There is no sign of birds or other animals.
The lake was the source of toxic gas 30 years ago that killed by suffocation some 2,000 people and 3,500 livestock animals within 25 kilometers of the lake. Magma under the lake leaks carbon dioxide into the water, and a large cloud of the deadly gas escaped into the air on August 21, 1986.
This camp situated 25 kilometers from the lake is now home to survivors.
Papa Saboum lost his 30-year-old wife at the time and still has fresh memories of what happened to him and his neighbor, a commissioner of police.
The disaster, most people will ultimately do well and return to their previous level of functioning. However, many people will initially experience distressing thoughts.
How do they able to survive this disaster?Lake Nyos and the surrounding land in northwest Cameroon appear to be completely dead. There is no sign of the birds or other animals.
The lake was the source of toxic gas for 30 years ago that killed by suffocation some 2,000 people and 3,500 livestock animals within 25 kilometers of the lake.
On August 21, 1986 Magma under the lake leaks carbon dioxide into the water, and a large cloud of the deadly gas escaped into the air
This camp situated 25 kilometers from the lake is now home to survivors.
The American Psychological Associations website said the natural disasters can cause traumatic stress for those involved (or for people who have family and friends who are killed).
The disaster, most people will ultimately do well and return to their previous level of functioning. However, many people will initially experience distressing thoughts.
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What happens when boiled liver is added with hydrogen peroxide?
helpppp againnnnnnnn I need the one on top and number six pleaseeee
Answer:
D, False
Explanation:
this is what it would be, trust me
WILL MARK BRAINLIEST!!!!!!!
Which choice names the two parts of Earth that make up the lithosphere?
crust and outer part of the mantle
mantle and outer core
inner core and mantle
inner core and outer core
Answer:
crust and outer part of the mantle
Explanation:
lithosphere includes brittle upper portion of the mantle and crust and the outer most layers of the earths structure and it is bound by the atmosphere above the asthenosphere
Which group has the smallest dispersal distances *
1 point
a) Seaweeds
b) Fish
c) Crabs
d) Marine Snails
Answer:
d) Marine Snails
Explanation:
Marine Snails has the smallest dispersal distance because of their slow mobility. These marine snails have very limited mobility when they are adults and spend their majority of lifetimes in a small geographical area. Dispersal distance refers to the distance a species can move from an existing place or population or the parent organism. According to this definition we can say that marine snails have the smallest dispersal distances.
necesito un impacto negativo de la biodiversidad del mosquito aedeomyia squamiennis
ayuda:/
Answer:
El cambio climático tiene un impacto negativo.
Explicación:
El impacto negativo en la biodiversidad del mosquito aedeomyia squamiennis se debe al cambio climático que disminuye su población porque el cambio climático hace que el medio ambiente sea desfavorable para el mosquito. Debido a este cambio climático, aquellos organismos que se adoptan de acuerdo con el cambio ambiental pueden sobrevivir pero aquellos que no pueden extinguirse del medio ambiente, por lo que podemos decir que el cambio climático tiene un efecto negativo en la biodiversidad del mosquito aedeomyia squamiennis.
does anyone know this?
Answer:
No
Explanation:
The largest number of individuals an area can support is referred to as
Answer:
The answer is carrying capacity
Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA
samples are shown.
Organism
Adenine
Guanine
Cytosine
Thymine
Sea urchin
32.8%
17.7%
17.3%
32.1%
Salmon
29.7%
20.8%
20.4%
29.1%
Wheat
28.1%
21.8%
22.7%
27.4%
Which conclusion is supported by the data in the table?
А
Each organism contains more cytosine than any other base.
В B
The three organisms have the same sequence of nucleotides.
1-35
Rack
Review/ind
Answer:
D
Explanation:
The presence of each base is dependent on the size of the organism. So, the correct option is D.
What is Base pairing?A base pair is defined as the basic unit of a double-stranded nucleic acid, consisting of two nucleobases bound to each other by hydrogen bonds, where they form the building blocks of the DNA double helix and the folding of both DNA and RNA contribute to the structure.
The rules of base pairing are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T), bond with double bondC with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G), bond with triple bond.The base pair also depend on the size of each organism.
Thus, the presence of each base is dependent on the size of the organism. So, the correct option is D.
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Your question is incomplete, most probably the complete question is :
Erwin Chargaff examined DNA samples from different
organisms to study base pairing. Some data from DNA
samples are shown.
Which conclusion is supported by the data in the table?
A. Each organism contains more cytosine than any other base.
B The three organisms have the same sequence of nucleotides.
C. All three organisms contain the same types of nitrogen bases.
D. The presence of each base is dependent on the size of the organism.
Make a diagram of the reproductive cycle of a virus and discuss this form of reproduction with the pandemic situation we are experiencing today.
Answer:
There are six basic stages in their life cycle:
Attachment is a specific binding between viral capsid proteins and specific receptors on the host cellular surface. This specificity determines the host range and type of host cell of a virus. In the case of coronavirus, the spike proteins bind to ACE receptors on lung cells. Attachment to the receptor induces the viral envelope protein to undergo changes that result in the fusion of viral and cellular membranesPenetration through receptor-mediated endocytosis or membrane fusionUncoating, a process in which the viral capsid is removedReplication of viruses involves primarily multiplication of the genome. Replication involves synthesis of viral messenger RNA (mRNA) from "early" genes, viral protein synthesis, possible assembly of viral proteins, then viral genome replication mediated by early or regulatory protein expression. Coronavirus is a single strand RNA virus. Assembly and release of virionsCan someone help me answer the last 2 question (#3 and 4). It asks about diabetes.
Which level of organization is formed from two or more different tissues that group together and perform a function? (4 points) Molecule Organ Organ system Tissue
Answer:
i think system is correct
Explanation:
for example heart is an organ. it has muscle tissue .epithelial tissue . connective tissue nervous tissue
Complete the blanks in the following sentence from the multiple-choice selections below.
Figure 1 illustrates that when orcas started eating sea otters, the sea otter population [blank 1], the urchin population [blank 2], and the kelp population [blank 3]. _______
a. decreased, decreased, decreased
b. decreased, increased, decreased
c. increased, decreased, increased
d. dincrease, increased, increased
In trophic webs, any change affecting one of the links affects the superior and the immediately anterior link. Option b) decreased, increased, decreased.
What is a trophic web?
The trophic web is the interaction between different organisms involving transference of energy when some of them feed on the other ones. The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
• The first link corresponds to a producer organism -autotroph-.
• The following links are the consumers -heterotrophs-: herbivores and carnivores.
• The last links are the decomposers that degrade organic matter from dead organisms.
Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.
Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
To answer this question, we need to think about predatio-prey relationship.
In this food chain we know that
Urchins feed on kelp. Sea otters feed on urchins, and orcas feed on sea otters.So, the more orcas there are, the less sea otters there will be, because many orcas are feeding on them. Sea otters' population decreases in size.
↑ ocas ⇒ ↓ sea otters
Since there are fewer sea otters, the urchin population will be able to increase in size, because they are not affected by sea otter predation as they used to be.
↓ sea otter ⇒ ↑ urchins
Finally, the more urchins there are, the more affected kelp will be, because predation on them by urchins increases.
↑ urchins ⇒ ↓ kelp
The correct option is then option b. decreased, increased, decreased
↑ ocas ⇒ ↓ sea otters ⇒ ↑ urchins ⇒ ↓ kelp
decrease increase decrease
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Genes determine the_____of an individual.
Answer:
traits of an individual
Explanation:
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1. What type of solution (isotonic, hypertonic, or hypotonic) do you think could have the greatest negative effect on transpiration and why?
Answer:
the hypertonic solution will have the greatest negative effect on transpiration
Explanation:
as the root hair cell of the plant in a hypertonic solution will loose water to the soil by osmosis (the net movement of water molecules from area of low water potential to area of high water potential down gradient)and as the hypertonic solution has low water potential(concentrated solution)so the water from the root (high water potential) will move out of the cell reducing the water intake so reducing the rate of transpiration .
The most detrimental effect on transpiration will be caused by the hypertonic solution.
Briefing:As the plant's root hair cell in a hypertonic solution loses water to the soil through osmosis (the net movement of water molecules from an area of low water potential to an area of high water potential down gradient), and as the hypertonic solution has low water potential (concentrated solution), the water from the root (high water potential) will move out of the cell, reducing the water intake and thereby slowing the rate of transpiration.
What is hypertonic and hypotonic in biology?A solution that has a lower solute concentration than solvent concentration is said to be hypotonic. On the other hand, a hypertonic has a high solute concentration in comparison to a solvent. a fluid that includes more dissolved particles, such as salt and other electrolytes, than blood and normal cells do. As instance, hypertonic solutions are being used to soak wounds.
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Which is most important for healthy development in childhood: nature or nurture?
Answer:
nurture.
Explanation:
Nature happens according to the level of nurture given.
as humans grow, their bodies change. Which of these statements explains how humans grow?
A. cells from a cell wall
B. cells undergo mitosis
C. cells increase in size
D. cells merge to become larger
Answer:
B. cells undergo mitosis
Explanation:
Many organisms increase in size over time. However, it is not because the cells are increasing in size. It is because of mitosis, in which the cell are multiplying in amount, or increasing in number.
If the DNA is TACGG what is the complementary RNA after Transcription?
Answer:
TUGCC
Explanation:
The cytoplasm of a plant cell contains a 15% sugar solution. The plant cell is placed in sugar
solutions of different concentrations.
In which solution would there be a net diffusion of water out of the cell?
A5% sugar solution
B 10% sugar solution
с 15% sugar solution
D 20% sugar solution
Answer:
It's D!
Explanation:
cytoplasm contains a small ammoUNT OF sugar but it is higher than anyoe on the list here
20% sugar solution will cause a net diffusion of water out of the cell. Therefore option (D) is correct.
What is diffusion?Diffusion is the movement of a substance's individual molecules from a region of higher concentration to a region of lower concentration over a semipermeable barrier.
Simple diffusion and facilitated diffusion are the two primary subtypes that fall under the general term "diffusion."
Therefore, in the above question the concentration of water inside the cell is greater as compare to outside causing a net diffusion of water out of the cell to maintain the equilibrium.
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what does DNA need to replicate
In order to replicate, DNA needs the help of a lot of enzymes and primers (helicase, DNA polymerase, RNA primer, ligase, etc) It is also SUPER important that there is a template for the DNA to replicate off of so that the genetic info is passed on from one generation to the next without any changes or damage to the DNA
You want to know whether chewing gum will cause someone to perform better on tests. When designing the experiment, which of the following best describes your control group?
Select one:
a. A group of individuals that chew two pieces of gum.
b. A group of individuals not chewing gum.
c. A group of individuals that sucked on hard candy.
d. A group of individuals that chew a half a piece of gum.
Answer: b
Explanation:
Answer: A group of individuals not chewing gum.
Explanation: A control group is what you are going to compare the experimental group to. Since you are experimenting on if gum will cause someone to perform better on tests you will compare their score to the group that's not chewing gum.
HELP ME PLEASE DUE SOON
Answer:
food, mates and competition with other animals are limiting biotic factors
Space, temperature, altitude, sunlight are limiting abiotic factors
Name three institution involved in different types of biological research in in each institution area of biological research carried out
Answer:
E
Edward Grey Institute of Field Ornithology
Marine Station of Endoume
F
Friedrich Miescher Laboratory of the Max Planck Society
G
Genoscope
German Resource Center for Genome Research
7. Slime molds are fungus like protists, but they are not fungi. Why?
Answer:
Because they can move
Explanation:
Fungi cannot make food themselves so they depend heavily on hosts. Also fungi lack the proper cilia to move, so they use spores instead to "move".
In the case of slime mold, they are like an animal fungus per se. They are like Protozoa in their amoeboid plasmodial stage and similar to true fungi in spore formation.
What was Darwin's famous trip on the H.M.S beagle?
Answer:
In 1831, Charles Darwin received an astounding invitation: to join the HMS Beagle as ship's naturalist for a trip around the world. For most of the next five years, the Beagle surveyed the coast of South America, leaving Darwin free to explore the continent and islands, including the Galápagos.
hi guys please tell me what r the methods to stop growth of population please answer it's urgent
There are the following steps to control population
Using barriers like condoms.,diapgrams etceducate people about this spread awareness in societyHope it helps u
how homologous structures and vestigial structures are evidence of evolutionary relationships.
Answer:
Due to presence of these structures in ancient as well as modern organisms.
Explanation:
Homologous and vestigial structures are the evidences that show evolutionary relationships between organisms because these structure were also present in the ancient ancestor of that organism. These homologous and vestigial structures shows the relationship between the ancient and the modern organisms. Some structure has a purpose and function in the body of ancient organisms but with the passage of time those structure are useless and have no function in the body but these structure shows connection between modern and ancient organisms.
the following topographic map shows part if the state park. which area in the park is the steepest?
A. area A
B. area B
C. area C
D. area D
Sand has the smallest particle size and clay has the biggest particle size while silt is in between the two. The correct order will be clay – silt – sand.
What are the generations which has been used in the cross?The first generation crossed which included the true breeding parents are the P generation plant. This produces the two subsequent generations which are the first filial generation (F1) and the second filial generation (F2).
In his breeding experiments, mendel first crossed true-breeding plants to produce a second generation, which were then allowed to self-pollinate to generate the offspring. Gregor Mendel performed series of experiments with pea plant to determine the law that governs inheritance.
In the parental generation (P-generation), He crossed a truebreeding plant that is dominant for a particular trait i.e. a plant that contains the same dominant alleles in its genotype and a truebreeding plant that is recessive for a particular trait i.e. contains same recessive alleles for the same gene.
Therefore, Sand has the smallest particle size and clay has the biggest particle size while silt is in between the two. The correct order will be clay – silt – sand.
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Charles Darwin referred to this as survival of the fittest. Over time, it results in changes in the inherited characteristics of a population. A. Natural Selection B. Evolution. C. Genetic Variation D. Extinction
Which minerals are found in the igneous rocks gabbro and basalt
As a result, mafic rocks like basalt and gabbro commonly contain olivine, pyroxene, and Ca-rich plagioclase.
What is igneous rock?Igneous rock, also known as magmatic rock, is one of three major types of rock, the others being sedimentary and metamorphic. Igneous rock is created when magma or lava cools and solidifies.
Gabbro is a coarse-grained (phaneritic) igneous rock with a high iron, magnesium, and calcium content.
This type of rock is known as mafic. Gabbro is primarily made up of pyroxene and calcium-rich plagioclase, with trace amounts of hornblende, olivine, and other minerals.
Basalts are made up of minute plagioclase feldspar grains (mostly labradorite), pyroxene, olivine, biotite, hornblende, and less than 20% quartz.
Basalt and gabbro are both formed from the same molten rock with the same chemistry. It has a low silica content but a high magnesia and iron content.
Thus, these are the minerals found in the igneous rocks gabbro and basalt.
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9. Why is the synthesis stage called this?
a. because protein synthesis is taking place
b. because DNA synthesis is taking place
c. because it combines several smaller stages into one
d. because the chromosomes come together