VERY EASY, HELP
Which of the following is described as a slow abiotic change?
A. climate change
B.growth of a forest
C.a fire
Answer:
I believe the answer is A. Climate Change
An abiotic change is a nonliving part of an ecosystem that shapes the environment.
A fire is not part of an ecosystem, and it isn't slow.
The growth of a forest is a living part of an ecosystem.
Climate change is slow, nonliving, and affects the environment.
When an action potential arrives at an axon terminal at a neuromuscular junction, it causes the opening of _______ channels, increasing the concentration of this ion within the cell, which ultimately triggers fusion of neurotransmitter vesicles with the presynaptic cell membrane.
Answer:calcium
Explanation: don't have one
What gene or chromosome is affected by down syndrome.
Chromosome 21!
Enjoy!
Answer:
Chromosome 21
Explanation:
Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21
Which three observations are caused by plate tectonics?
Answer:
mountain ranges. valleys. volcanoes. these can also cause earthquakes which will cause other things.
Explanation:
i need help with this please
Answer:
Corresponding mRNA Sequence: ALGUG GAACC_GCUG CLGA
Amino Acid Sequence: METHIONINE-LEUCINE-GLUTAMIC ACID-PROLINE
Which of the following organisms is located only in the 3rd trophic level of the soil food web? a. bacteria b. fungi c. protozoa d. nematodes please select the best answer from the choices provided a b c d
The correct answer is protozoa the following organisms are located only in the 3rd trophic level of the soil food web.
The trophic level is the first second and third trophic level. Free-living protozoa occupy the trophic levels as primary consumers. Nematodes and grasshoppers are also there, It has producers, consumers, decomposers.
What are protozoa in soil?Soil protozoa consist of bare amebae, testate amebae, flagellates, ciliates, microsporidia, and sporozoans. So far, approximately 1600 species were recorded from the soil, lots of that have unique variations to the soil environment. Very likely, the genuine quantity of soil protozoa is lots higher, this is 4000 or greater species.
Thus it is clear that protozoa are located only in the 3rd trophic level of the soil food web.
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Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the:____.
A) cementing together of individual miner grains.
B) cooling and crystallization of magma.
C) evaporation of an ancient ocean.
D) heat and pressure during metamorphism.
Wavy bands of light and dark minerals visible in gneiss bedrock probably formed from the heat and pressure during metamorphism (Option D). It is a natural process.
What is metamorphism?Metamorphism can be defined as a natural event associated with mineral aggregation due to temperature.
Metamorphism is a process caused by different modifications in the physical and chemical properties of rocks.
During this process (metamorphism), the texture of solid rocks suffers different alterations due to temperature (heat).
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Which of these functions of life refers to
maintenance of an internal balance?
Answer:
Answer is homeostasis. I hope my May help you
18. Does the blood of the mother and the baby ever mix?
Answer: No
Explanation: Usually a mother and baby's blood do not mix while the baby is in the womb. The mother's blood runs alongside the placenta, and the nutrients needed by the baby are absorbed and transferred to him/her.
Answer:
yes it does
Explanation:
because the mother is one half of the whole required to make a child
The endosymbiotic theory explains the:____.
a. Evolutionary relationship between animals, plants, and fungi.
.b Origins of mitochondria and chloroplasts in eukaryotes.
c. Method of reproduction in protists.
d. Origin of the first prokaryotic cells.
Answer: The endosymbiotic theory explains the Origin of the first prokaryotic cells
D. Origin of the first prokaryotic cells
Explanation:
what is leucosolinea?
Answer:
Leucosolenia is a small, delicate branching, colonial marine sponge. It grows in shallow water below low tide mark on sea shore rocks where wave actions in intense and is not found in calm water. Leucosolenia is found abundantly along the northern Atlantic coast and is supposed to be very sensitive to external conditions.
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The digestive system doesn’t work alone. After nutrients are absorbed in the small intestine, they pass through other body systems. Drag the correct words to complete the sentences.
[respiratory] [lymphatic] [endocrine] [circulatory]
Nutrient distribution depends on the[ ? ]
system to deliver nutrients to cells around the body through the bloodstream. The [ ? ]
system also plays a part by supplying the oxygen used in cellular respiration. Respiration is the process of breaking down nutrients for energy.
Answer:
circulatory, respiratory
Hope this helps!
1. Conduct research about why molecular-level structure is important in the
functioning of designed materials. You should research at least two examples. Then
communicate this scientific and technical information using written text and
graphics. (5 points)
A) What is the difference between bonding forces holding compounds together and
other attractive forces? What types of chemical bonding and intermolecular forces do
the materials have?
B) Predict the general properties of your materials based on the types of bonds they
have. Properties include melting point, boiling point and conductivity
C) analyze your materials specific physical and chemical properties. properties include color, density, viscosity, buoyancy, boiling point freezing point, conductivity, and reactivity.
D) designed materials need to meet certain requirements. when designing new products why is it important to study the properties of the materials?
Molecular-level structure is vital in the design and use of materials mostly at the macroscopic-stage. The structure of a molecule is known to influence how it interacts with other molecules.
Note that Attractive and repulsive forces are the ones that plays a vital role in the total properties of matter seen on the scale.
Molecular structure is known to be the one that helps us to know more about Nature's intricate design methods and blueprints. When we know the blueprints and basic materials, we can then try to mimic her essential products that are cost effective and the ones that has less harmful environmental effects.
What is the Difference between bonding forces and intermolecular forces ?The Difference between bonding forces and intermolecular forces is that Intermolecular forces are known to be forces that are said to hold two or more molecules as one while a chemical bond is known to be an attractive force that exist between two or more atoms.
The types of chemical bonding and intermolecular forces that materials have are:
For Chemical bonds they are:
CovalentPolar covalentIonic bondsFor Intermolecular forces, the three types are van der Waals forces are:
Dispersion forces.Permanent dipole-dipole forces.Hydrogen bonding.Learn more about Molecular-level structure from
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hello humans ~
Living organisms which are invisible to the niked eye are called _________ .
Particles
Molecules
Microorganisms
Macroorganisms
Answer:
Microrganisms
Explanation:
They are called microorganisms because they have to be seen with a microscope :)
Have an amazing day!!
PLEASE RATE AND MARK BRAINLIEST!!
Answer:
MicroorganismsExplanation:
Living organisms which are invisible to the niked eye are called MicroorganismsAnswer me:
1. Identify the correct statement about the magma.
A. Typical magma temperatures exceed 10,000 degrees Celsius.
B. Magma always comes from the lower mantle.
C. Magma never contains dissolved gases.
D . Magma forms after magma melts
2. Very explosive volcanoes tend to have___________
A. Gases rich in sulfur dioxide
B. Low viscosity magma
C. gentle, sloping sides
D. High viscosity
3. Which of these statements is correct?
A. When a rock melts different minerals melt at the same temperature
B. If water is present, rocks will melt at a higher temperature.
C. Under high-pressure rocks melt at a lower temperature
D . Magma that crystallizes Form igneous rock.
4. It is the magma that is usually found at subduction zones.
A. Andesitic Magma
B. Basaltic Magma
C. Rhyolitic Magma
D. A & B
5. Which types of magma contain the least amount of SiO2?
A. basaltic
B. Candesitic
C. felsic
D. rhyolitic
6. What is molten rock that has formed deep within the Earth?
A. Hot Spot
B. Lava
C. Magma
D. Volcano
7. As the temperature of lava increases, it/s ________
A. begins to harden
B. viscosity decreases
C viscosity increases
D. sit can flow a much short distance
8. What makes magma different from lava?
A. color
B. composition
C .location
D . temperature
9. The composition of magma determines its _____.
A. color
B. darkness
C. viscosity
D. none of the above
10.Which one of these does NOT affect the temperature at which magma forms?
A. water
B. pressure
C.viscosity
D. Composition of material
_____________________
B. True Or False
1.. Lava with high silica content is less viscous to travel far and tends to break up as it flows.
2. Magmas with high silica content are more viscous than those with low silica content.
3.Lava with less silica content has a high viscosity that can travel a great distance, forming a thin sheet.
4. Lava with a low amount of gas as it rises has a low viscosity that it piles up at a vent resulting in a dome.
5.. Silica is a compound of silicon (SiO2)
6. The characteristic of magma that mainly determines its explosiveness is silica content.
7.A thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings because ash consists of tiny fragments of rocks that become heavy as they pile up.
8. Lava with a low amount of gas and high silica content is very viscous and does not flow out at all
9. Lava with high temperature has high viscosity.
10. The viscosity of magma increases with temperature.
Answer:
Typical magma temperatures exceed 10,000 degrees Celsius. Magma never contains dissolved gases. Magma forms when rocks melt. Magma always comes from the lower mantle.
Which renewable energy resource comes from burning plant material.
Answer:
Biomass
Explanation:
Biomass is renewable organic material that comes from plants and animals. Biomass was the largest source of total annual U.S. energy consumption until the mid-1800s. Biomass continues to be an important fuel in many countries, especially for cooking and heating in developing countries
Carbohydrate stored in the muscles of a marathon runner is converted to available glucose during a race. This conversion is
controlled by the hormone
(A)Adrenalin
(B)insulin
(C)thyroxin
(D)testosterone
True or false: The carrying capacity of a given geographic region for a single population can change over time.
Answer:
True
Explanation:
People reproduce and die
10 characteristic properties of a diamond
Answer:
Hardness.
Low coefficient of friction.
High thermal conductivity.
High electrical resistivity.
Low thermal expansion coefficient.
High strength.
Broad optical transparency from ultra violet to infra red.
Resistant to chemical corrosion
Biologically compatible
The picture above represents a small section from the periodic table. Which of the elements has chemical properties most similar to element X?
A.
Element 1
B.
Element 2
C.
Element 3
D.
Element 4
The elements which has chemical properties most similar to element is element 1
Option A is the only correct answer
PLEASE HELP
Mutation is a change in the DNA. Mutations that can be passed on to
______ may result in_______
hello humans ~
Which among the following organelles synthesizes lipids?
A. Smooth Endoplasmic Reticulum
B. Rough Endoplasmic Reticulum
C. Golgi apparatus
D. Lysosome
Answer:
Smooth Endoplasmic ReticulumExplanation:
Smooth Endoplasmic Reticulum synthesizes lipids.Which of the following is not a possible consequence of surface mining? a. increased pollution b. improved ecosystem health c. destruction of flora and fauna d. erosion of soil
Among these, a not possible consequence of surface mining "B" is improved ecosystem health.
What is surface mining and how does it affects the environment?Surface mining is a method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying.
The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater, and surface water by chemicals from mining processes. The environmental effects of surface mining include;
Habitat destructionSoil erosionAir pollution from dust particlesAll surface mining techniques negatively affect the environment, though some methods are more damaging than others.
Thus, improved ecosystem health is not a consequence of surface mining.
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Answer:
The answer is B
Explanation:
:)
and
work together to meet the needs of ALL plants.
xylem and phloem
photosynthesis
respiration
transpiration
Photosynthesis uses water and mineral nutrients from the soil, CO2 from the air, and light energy from the sun to create photosynthates
how does gel electrophoresis separate DNA? and how is genetic engineering used to treat genetic diseases??
Answer:
How does gel electrophoresis separate DNA? :
The technique of gel electrophoresis is used to separate DNA fragments based on their size. DNA samples are placed into wells (indentations) at one end of a gel and pulled through using an electric current. Negatively charged DNA pieces gravitate toward the positive electrode.
How is genetic engineering used to treat genetic diseases? :
Gene therapy aims to rectify genetic abnormalities and thereby prevent or treat hereditary disorders by modifying genes. Genetic engineering tries to tweak genes to improve an organism's capabilities beyond what is normal.
Explanation: See above
Hope this helps you, friend.
Pls help me with this question
Answer:
All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.
Answer:
Segmented body, Open circulatory system.
Explanation:
1. Which of the following structures makes cyanobacteria optimal symbionts for eukaryotic organisms needing oxygen and nutrients?
A.
chloroplasts
B.
plasmids
C.
thylakoids
D.
capsules
2.In the absence of meiosis and s3xual reproduction, what general process allows genetic recombination among prokaryotes?
A.
evolution
B.
mutation
C.
horizontal gene transfer
D.
endospore formation
3.Which of the following “environments” could provide the BEST chance of survival via symbiosis to a photoautotroph bacterial species?
A.
the intestine of a cow
B.
the eye of a flashlight fish living in the deep ocean
C.
a colony of fungi near a pond
D.
the interior of an ant’s nest
4.Which of the following is a feature entirely shared by the domains of bacteria and archaea, indicating their common prokaryotic origin?
A.
living in colonies
B.
autotrophy
C.
circular chromosomes
D.
being extremophiles
5.Which statement about prokaryotes is true?
A.
The vast majority of prokaryotes are pathogenic.
B.
Prokaryotes are widely used for bioremediation.
C.
It is important to try and rid your body of all prokaryotes.
D.
Prokaryotes have no industrial uses.
Answer:
1) B. plasmids
2) C. Horizontal gene transfer
3) C. a colony of fungi near a pond
4) C. circular chromosomes
5) B. Prokaryotes are widely used for bioremediation
Answer:
1 - C. thylakoids
2 - C. horizontal gene transfer
3 - C. a colony of fungi living near a pond
4 - C. circular chromosomes
5 - B. prokaryotes are widely used for bioremediation
Explanation:
Which process could be used by breeders to develop tomatoes with a longer shelf life and to develop cows with increased milk production
Answer:
genetic engineering
Explanation:
I hope this helps and have a good day
What’s the answer to this?
dna unzips
Explanation:
100 Points y'all!!!!!!!!!!! Will mark brainliest too!
Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of ocean warming on the range of lionfish and, therefore, on biodiversity?
Rising ocean temperatures have expanded the range of the lionfish; with little competition, it consumes smaller fish, reducing biodiversity.
Global warming has forced the lionfish to warmer waters where it is able to mate with native fish, increasing biodiversity.
Climate change has restricted the habitat of lionfish. It has become an endangered species, reducing biodiversity.
Lionfish thrive in high carbon dioxide environments; they eat all of the native species in the area, reducing biodiversity.
Answer:
Rising ocean temperatures have expanded the range of the lionfish; with little competition, it consumes smaller fish, reducing biodiversity.
Explanation:
As ocean temperatures have increased, the range of the lionfish has increased. As a top predator, it has little competition for eating smaller fish, causing massive destruction by eating endangered fish, reducing biodiversity.