Answer:
Missense mutation.
Nonsense mutation.
Insertion.
Deletion.
Duplication.
Frameshift mutation.
Repeat expansion.
Answer:
There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease.
Explanation:
Why are organelles important?
Answer:
They carry out essential functions that are necessary for the survival of cells – harvesting energy, making new proteins, getting rid of waste and so on. Core organelles include the nucleus, mitochondria, endoplasmic reticulum and several others. ... Different types of cells have different amounts of some organelles.
Which of the following is not a common characteristic of life/living things.
Question 2 options:
a.growth and development
b.abiliity to reproduce species
c.motility - movement from place to place
d.response to environment
Answer:
I think the answer is D
Explanation:
all things grow and develop
all things reproduce if they didnt then there'd no more life
not all things can move from place A to place B
Answer:
That's a tough one. But I think it is D
This type of bone forms within sheets like layers of connective tissue.
A flat
B endochondral
C round
D irregular
The correct answer is statement c.
Explanation:
The procedure of the development of bones from hyaline cartilage is known as endochondral ossification. Endochondral ossification transforms hyaline cartilage into true bones, that is, hyaline cartilage functions as a template for the formation o
Which of these is more likely to have winter ice?
A)
lakes
B)
open ocean
C)
salt marsh
D)
mangrove forest
E)
estuary
Answer:
A. Lakes
Explanation:
Usually the open ocean has too much movement and higher temperatures to freeze over, so that excludes salt marches and estuary as well. Mangrove forests usually survive in salt water areas, which again the salt and movement of salt water allows for the water to not freeze over. With lakes, they are usually smaller bodies of water found all over the world, and can easily have the top freeze over, since there's no salt, not as much movement, and temperatures can vary more often.
What do scientists call all of the compounds that contain carbon and are found in living things? organic inorganic acidic nonacidic
All substances that include carbon and are present in living organisms are referred to be organic substances by scientists. The correct option is A.
What are organic compounds?Organic compounds are those compounds that contain carbon in them. They are chemical compounds made up of carbon-carbon or hydrogen-carbon bonds.
These compounds are found in nature and produced by plants and animals. They can be identified by their spatial and isomeric configuration. Examples are carbs, protein, lipid, etc.
Inorganic compounds are those that do not contain carbon, these are metals, nonmetals, etc. Acidic is a liquid that has low pH, and non-acidic is a basic or neutral compound like water and other liquids.
Thus, the correct option is A. organic compounds.
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Tiny river has recently been experiencing increasing erosion of the sediment along its banks. what could explain why this is happening.
A. decreased Slope
B. Increased Runoff
C. decreased rainfall
D. increased vegetation
Please help, Thanks!
Answer:
The best explanation for why tiny river has recently been experiencing increasing erosion of the sediment along its banks is increased runoff.
Explanation:
The main agents of soil erosion are wind, climate change, ice and water circulation.
Runoff is caused by precipitation, which is capable of produce erosion on the banks of a river, with some negative consequences for the environment.
Runoff depends on the flow of water, coming from rainfall, which moves across the surface of the soil, with great capacity for infiltration and erosion. In this case, runoff is the only possible cause of soil erosion
With respect to the other options:
Decreased Slope , decreased rainfall and increased vegetation are not factors related to the erosion in the bank of a river.
A chemical reaction occurs. Which of the following would indicate that energy is transformed during the reaction? A. light is produced B. heat is produced C. an electrical charge is produced D. all of these
Answer:
i think its B.
B.B.B..B.B.B.B.B.B.B.B.
Answer:
D, All of the above
Explanation:
What will the moon look like from Earth when it is in the position shown in your model
Answer: The Moon will look red in Earth’s shadow. That’s because the Sun’s light is refracted by Earth’s atmosphere.
Explanation:
Edmentum's sample answer
This diagram shows a red blood cell in a beaker that contains a solution of with a higher salt
concentration than that inside the red blood cell.
high salt concentration
low salt concentration
What will happen to the red blood cell in this environment?
Answer:
The red blood cell will become dry as water inside it will move towards a higher concentration of salt by osmosis.
What do you surface membrane proteins do
Common names given to organisms may be useful locally but may become meaningless on a _________ basis.
Answer:
Global basis
Explanation:
How is solar power collected on a large scale?
Answer:
SEGS is a parabolic trough solar installation that uses concave mirrors to focus the sun's rays on oil-filled pipes. The fluid in these pipes is then pumped to make high-pressure steam, driving turbine generators and creating electricity.
Which two characteristics describe all organisms in the domain Eukarya?
A. Their cells are prokaryotic.
B. Their cell walls have peptidoglycan.
c. Their cells are eukaryotic.
D. Their cell walls lack peptidoglycan.
Which of the following statements is true?
O Cold blooded animals have cold blood.
Cold-blooded animals change their body temperature to match the environment.
Mammals and birds are usually cold blooded.
All of the above.
Answer:
Explanation:
Cold blooded animal did not have cold blood.
Cold blooded animals can’t change their body temperature to match the environment.
Mammals and birds are not cold blooded.
You will NOT find a cell wall in which of these kinds of organisms? a. plants c. fungi b. animals d. all of the above
Answer:
You will not find a cell wall in animals. As cell walls are only present in plant cells.
Explanation:
The cell wall is present in the cells of all of the kinds of organism such as plants, fungi and it is absent in an animal cell. Thus, the correct option is B.
What is a cell wall?The cell wall is the structural layer which surrounds some types of cells, such as plant cells and fungi just outside the cell membrane. This layer can be tough, strong, flexible, and sometimes rigid which allows some materials to flow through them. It provides the cell with both the structural support and protection, and also acts as a filtering membrane.
The cell wall is the protective outer layer of the plant cells. The major function of cell wall is to provide the cell its strength and structure, and also to filter the molecules that pass in and out of the cell. cell wall of plant cell is made up of cellulose.
Therefore, the correct option is B.
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Which of these is directly formed as a result of weathering and erosion?
O A. metamorphic rocks
B. sediments
0 C, crystals
O D. igneous rocks
Answer:
b sediments is the ckrrwcr a swer
Sedimentary rocks are directly formed by weathering and erosion. Hence, option B, sediment is correct.
What are weathering and erosion?Breaking down of rocks, mountains, and soils, when they come in contact with air, water, and atmospheric gases is known as weathering. There are two types of weathering: physical weathering and chemical weathering. Weathering results in the formation of soil, it forms sedimentary rock.
Erosion is a kind of geological process in which soil and rock debris are removed from the surface and transported to another place by natural agencies. In this phenomenon, the material is degraded from one place and deposited in another place. It alters an existing landform to form a new landform.
In both phenomena, rocks are broken down into small particles. The major difference between erosion and weathering is that erosion displaces material after breaking down, while weathering breaks down material without displacing them.
Thus, option B is correct. Sediments are formed as a result of weathering and erosion.
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You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A survey of 800 trees from several groves indicates that the average shelled almond weight is 5.71 g. You select the 40 trees producing the biggest almonds (average shelled almond weight of 6.48 g), then cross-pollinate the flowers from these trees. You plant the almonds produced by these flowers and when the resulting trees reach maturity, you measure the size of their almonds and find that the average shelled almond weight is 5.85 g.
1. Calculate the selection differential.
2. Calculate the response to selection.
3. Calculate heritability (h2).
4. If you were to carry out this breeding program for multiple generations would you expect to see almond production to be strongly influenced by genetics, environment, or a combination? Explain.
Answer: 1. S = 0.77
2. R = 0.14
Explanation:
1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.
S = mean of selected parents - population mean
S = 6.48 - 5.71
S = 0.77
2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.
R = mean of offspring of selected parents - population mean
R = 5.85 - 5.71
R = 0.14
3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².
To calculate it, use Breeder's Equation:
R = h²S
[tex]h^{2}=\frac{R}{S}[/tex]
[tex]h^{2}=\frac{0.14}{0.77}[/tex]
h² = 0.18
4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.
A researcher analyzes the interaction between two investigational drugs. He begins by plotting the dose–response curve for the first drug, administered alone. He then administers both drugs in combination and plots a second dose–response curve. When the two drugs are co-administered, the dose–response curve is shifted significantly to the right. He concludes, therefore, that the interaction between the two drugs is:__________
Answer: antagonistic
Explanation:
A researcher analyzes the interaction between two investigational drugs. He begins by plotting the dose–response curve for the first drug, administered alone. He then administers both drugs in combination and plots a second dose–response curve. When the two drugs are co-administered, the dose–response curve is shifted significantly to the right. He concludes, therefore, that the interaction between the two drugs is antagonistic.
An antagonist is sometimes called blockers and it is simply referred to as a type of drug that avoids a biological reaction. An antagonist doesn't activate when it binds to the receptor but what it does is that it blocks the receptor. From the question, we are told that when the two drugs are co-administered, the dose–response curve is shifted significantly to the right, this implies that the interaction is antagonistic.
Agar is an excellent solidifying agent for microbiological media because Select one: a. it is not degraded by most microorganisms. b. solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C. c. it is not degraded by most microorganisms and solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C are correct. d. agar provides an excellent source of nutrition for a variety of different microorganisms.
The correct answer is C. It is not degraded by most microorganisms and solid agar remains solid until the temperature is raised to 90°C, and liquid agar remains liquid if the temperature is lowered to 45°C are correct.
Explanation:
Agar is a substance derived from red algae mainly used as part of some foods and microbiology works. In microbiology, agar is an ideal substance due to its stability and low susceptibility to temperature. Indeed, agar will remain solid below 90° C and liquid below 45°.
Moreover, agar is used in microbiology because this substance cannot be degraded by most microorganisms. Due to this, it is commonly used as a culture medium that will preserve stable properties as it is not affected by the bacteria, and other organisms growing in it. According to this, the correct answer is C.
Es una característica de la planaria excepto:
a) Es un gusano plano
b) Habita en los ríos
c) Es un parásito
d) Son pequeñas
e) Pertenece a los platelmintos
Answer:
The correct answer is option c) Es un parásito.
Explanation:
The planarians are a group of "flat worms" that previously corresponded to the class Turbellaria, which is why they are also called as peat bogs. Around 4500 species are known, most of them aquatic in benthic ecosystems, although there are also species adapted to humid environments on land.
The vast majority of planarians are free-living animals, unlike the rest of flatworms that are totally parasitic. Most are aquatic and live in the bottoms (benthos) feeding on other small animals or on remains of decomposing organic matter.
Todas estas son características de las planarias excepto son parásitos (Opción c).
Los planáridos (Planariidae) son una familia de gusanos planos del phylum Platyhelminthes.Estos gusanos planos (planarias) son de vida libre, contrariamente a otros platelmintos que son generalmente parásitos.No obstante, es importante aclarar que existen excepciones a la regla y algunas especies de planarias son parásitas de diferentes animales.Algunos géneros de planaria incluyen:
AtrioplanariaCrenobiaDigonoporusParaplanariaBdellasimilisPhagocataEn conclusión, todas estas son características de las planarias excepto son parásitos (Opción c).
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Chlorophyll traps ______ from the sun
Answer:
Chlorophyll traps light energy from the sun.
Explanation:
What did the comparative study on chytridiomycosis teach scientists studying white-nose syndrome in bats? White-nose syndrome affects bats but does not cause death in organisms like chytridiomycosis does in amphibians. Chytridiomycosis affected only certain amphibians, so the comparative study could not teach the scientists anything useful. Humans were responsible for the spread of chytridiomycosis, but not white-nose syndrome. A novel fungal infection could spread to colonies and cause dramatic population crashes, as seen in the comparative study.
Answer:
A novel fungal infection could spread to colonies and cause dramatic population crashes, as seen in the comparative study.
Explanation:
Chytridiomycosis may be defined as an infectious disease which affects the various amphibians worldwide. Chytridiomycosis is believed to be caused by a chytrid fungus whose scientific name is Batrachochytrium dendrobatidis. This fungus is capable of causing numerous sporadic deaths in most of the amphibian populations and nearly 100 per cent of mortality in others.
This fungus was first discovered in 1993 in Queensland in the dying frogs.
Chytridiomycosis is the disease that is caused by the fungus in bats with the white nose syndrome. It is new or a novel infection caused by the fungus chytrid that has claimed to take life of many amphibians around the world in the comparative study by the scientists.
List the two types of asexual reproduction and write an example on each
Answer:
growth in line
Explanation:
When egg and sperm unite,a
is formed
respuesta e
Explanation:
La fecundación es el proceso por medio del cual un ovocito u óvulo y un espermatozoide se unen dando lugar a un cigoto o embrión
Answer:
a zygote :)
Explanation:
If the size of a wolf population in a community rises, is the increase permanent
Answer:
Yes
Explanation:
Since community means "all animals" and wolves are top predators in the food chain, that means that don't have any predators and the only way they can die is of disease, age, injury, etc. It even says it in the question, "in a community rises". If its rising then it will be permanent. Therefore, the increase in wolves will continue to rise at a steady or even higher pace than before.
Best of Luck!
The image below is what? Answer ASAP
Answer:
carbohydrate?
Explanation:
How is gastric acid produced?
Answer:
Gastric acid secretion is produced in several steps. Chloride and hydrogen ions are secreted separately from the cytoplasm of parietal cells and mixed in the canaliculi. Gastric acid is then secreted into the lumen of the gastric gland and gradually reaches the main stomach lumen.
basically in the stomach
Answer:
Gastric acid is produced in many steps. Chloride and Hydrogen are secreted separately from the cytoplasm of parietal cells and mixed in the canaliculi and, Gastric acid is then secreted into the lumen of the gastric gland and gradually reaches the main stomach lumen.
Which description refers to cirrus clouds? are fluffy are wispy produce snow form at low altitudes
Answer:
Wispy is the answer :))
Explanation:
The cirrus clouds are wispy.
• The short, detached, hair-like clouds witnessed at high altitudes are known as cirrus clouds.
• These clouds are delicate, are wispy, look like tufts of hair and are silky sheen.
• They are whiter than any of the clouds during the daytime.
• With the rising or setting of the Sun, they make take the colors of the sunset.
• The cirrus clouds are formed completely of ice crystals that provides them the white color.
• They are formed from the ascent of dry air, which makes the small quantity of water vapor in the air to get deposit into ice.
Thus, the correct answer is they are wispy.
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5. A scientist who studies rain, lakes, and rivers (1 point)
Chemist
O Entomologist
O Geologist
Hydrologist
A scientist who studies rain, lakes, and rivers is known as the hydrologist. Thus, option D is correct.
What do you mean by Hydrologist?A hydrologist can be defined as the person who has studies the water present on the earth's surface and it determines all the possible characteristics, levels of the contamination, and the supply of the particular water resources. An aquifer assists in the filtering groundwater by just compelling it to the perish through small pores and in between sediments. It helps in the removal of the impurities present in the water.
A hydrologist has a scientists who studies the circulation, as well as the movement and distribution of the surface as well as underground waters. Such professional studies has about the impact of the human beings, the seasonal changes and the natural calamity just over the water body.
The changes occurring in the oceanic water due to seasonal changes is studied by the hydrologist. As it has involves the physical change in the overall flow of the water due to the impact of the seasonal change.
Therefore, A scientist who studies rain, lakes, and rivers is known as the hydrologist. Thus, option D is correct.
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Article II of the Constitution states that the president is also leader of the Senate. a general in the army. commander in chief. leader of Congress.
Answer:
commander in chief.
Explanation:
took the test
Answer:
commander in cheif
Explanation:
took test on edg
