Answer:
D. air mass
hope this helps
Which factor is NOT needed to calculate a moving object’s average speed?
A. total time
B. total distance
C. total displacement
-------------------------
An arrow representing the velocity 3 m/s east and an arrow representing the velocity 6 m/s east would have the
A. same direction and same length.
B. different directions and same length.
C. same direction and different lengths.
D. different directions and different lengths.
-------------------------
10. Which equation could be used to solve for the average speed of a car that travels 90 m in 20 seconds?
A- Average Speed= 90m/20s
B- Average Speed= 20s/90m
C- Average Speed= 90m x 20s
D- Average Speed= 20s + 90m
Answer:
Q1. C Q2. C Q10. A
Explanation:
Q1. Displacement is used to calculate mass, weight, or density.
Q2. Since they have different velocities, but same direction.
Q10. S= D/T (Speed = distance / time)
Answer: Q1.
Explanation:
In dogs, black fur (B) is dominant over yellow fur (b). A heterozygous black dog is matted with a yellow dog. Do a Punnett square to show the cross and predict the offspring.
What do producers do with carbon? (little information needed)
Answer:
They transform it into oxygen through cellular respiration
Explanation:
At which phase of the cell cycle are spindle micro tubules from the centrosomes able to be observed?
Answer:
Metaphase
Explanation:
During metaphase, spindle fibres that are already attached to the centromeres of chromosomes from the centrosomes at the opposite poles of the cell lengthen and shortens to position the chromosomes on the metaphase plate. At this stage, you can see the spindle micro tubules through a microscope.
Viruses cause infection by ...
a) producing toxins that harm the body.
b) forming endospores in the body.
c) entering body cells and replicating.
d) reproducing independently inside the body.
Answer: (A)
Explanation:
An infectious disease is a disease that is caused by the invasion of a host by agents. Some pathogens then spread between host cells or inside of body fluids, while harm (damage) is usually due to the production of toxins or devastating enzymes.
What is the error in this representation of the steps involved in gene therapy?
A). The first and second steps should be switched.
B). The second and third steps should be switched.
C). The first and third steps should be switched.
Answer:
A.) the first and second steps should be switched.
Explanation:
The error in this representation is the first and second steps should be switched.
What is gene therapy?Gene therapy works by substituting or inactivating disease-causing genes.
Gene therapy introduces new genes into the body to treat a specific disease. With gene therapy, doctors deliver a healthy copy of a gene to cells inside the body.
Thus, option "A" is correct.
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6. Animals have many adaptotions for survival Describe each adaptation
below, and explain how it could help on organism better survive its
environment
A.camouflage
B.mimicry
C.venom
Answer:
Explanation: camouflage is an adaptation that helps organisms blend in with its surroundings. Blending in helps the animal avoid predators and increases its ability to survive.
Mimicry is an evolved resemblance between an organism and an object which protects them from predators for example how moths evolved to be brown like bark on trees helps them to blend in and reduces their chances of being eaten.
Venom helps animals to immobilise or kill prey or neutralise predators in self defence this benefits the animal because they are less likely to be attacked by predators
Animals have many adaptations for survival. By adapting, the organisms are able to live in their environment in a much better way. These adaptations can be of many types.
What is adaptation?Adaptation in organisms refers to the process by which species change over time in response to changes in their environment. This process, also known as biological evolution, occurs through a combination of genetic variation and natural selection.
Camouflage- It is a type of adaptation that enables an organism to blend in with its surroundings, making it less noticeable to predators or prey. This allows the organism to avoid detection or to approach its prey without been seen.Mimicry-In this type of adaptation, the organisms resemble another organism or an inanimate object in its environment. This allows the mimic to blend in with its environment and avoid detection by predators or to attract the prey.Venom- It is a type of adaptation which enables certain organisms such as snake, spiders, and scorpion to capture prey or defend themselves from against predators. Venom is a toxic substance that is produced through the specialized gland and ejected through special structure, such as fangs or stingers.Therefore, it can be concluded that through the process of adaptation, the organisms are better able to survive in the environment in which they are present.
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If finches on the Galapagos Islands had such different beaks, how could Darwin think they shared a common ancestor from the mainland?
Answer:
i just learned about this
Explanation:
its because each began to live in different areas on the Galapagos islands and they each needed to adapt to their meals and their surroundings. So simply evolving and adapting
I hope this helps u!
Pls give a brainliest and a thx ;)
Despite the different beak shapes of Galapagos finches, Darwin believed they shared a common ancestor from the mainland due to other similar traits. This lead to his theory of evolution through natural selection and adaptation, suggesting species change over time due to environmental factors.
Charles Darwin observed that finches on the Galapagos Islands had different beak shapes. Despite these differences, he concluded they all shared a common ancestor from the mainland because of the similarities in their other physical traits and behaviors. Darwin proposed the theory of evolution through natural selection and adaptation, suggesting that species change over time because of environmental factors. In the case of the Galapagos finches, the different beak shapes evolved due to the different types of food sources available on the islands, a process known as adaptive radiation.
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Leaves fall from deciduous trees onto the forest floor. These leaves decay slowly and become part of the topsoil. Which change is MOST likely to have a positive impact on the nutrients available in the topsoil?
an increase in the number of decomposers
a decrease in temperature
an increase in the number of predators
a decrease in biodiversity
Answer:
Explanation:
An increase in the number of decomposers ... Leaves fall from deciduous trees onto the forest floor. These leaves decay slowly and become part of the topsoil. Which change is most likely to have a positive impact on the nutrients available in the ... Which explains why the size of a population of rabbits might be decreasing.
The change that is MOST likely to have a positive impact on the nutrients available in the topsoil is an increase in the number of decomposers.
Decomposers are microorganisms that can break down organic molecules into smaller components.Decomposers include different groups of organisms such as, for example, bacteria and fungi.Decomposers play a fundamental role in the biogeochemical cycles and foods webs.In conclusion, the change that is MOST likely to have a positive impact on the nutrients available in the topsoil is an increase in the number of decomposers.
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What type of rock forms due to high pressure?
A. Metamorphic
O B. Igneous
O C. Sedimentary
O D. Shale
Answer: metamorphic
Explanation:
Which statements are true of a white dwarf?
a. It has a red shell.
b. It is the result of the core collapse of a low-mass star that sheds its outer layers.
c. It emits massive amounts of light compared with other stars.
d. It strongly attracts all matter or energy that comes near it.
e. It cools down to become a black dwarf.
(you can choose multiple)
Please answer!
Which two sentences describe ways that populations might be harmed by floods?
A. Organisms that thrive in moist condition have more places to live.
B. Animals who’s shelter are in land drown while the land is underwater
C. Plants that were living in soil that is washed away are killed.
D. Animals that lay eggs in water have more chances to reproduce
Answer:
C.
Explanation:
Answer:
B. Animals who's shelter is in land drown while the land is underwater.
C. Plants that were living in soil is washed away and killed.
Explanation:
I hope this helps
Why does the sun appear to rise in the east and set in the west every day?
A.) Earth is rotating counter clockwise
B.) The sun is moving from East to West
C.) All moons and stars have an East to West orbit
D.) Earth is orbiting the sun
Answer:
A. Earth is rotating counter clockwise
Explanation:
The Sun, the Moon, the planets, and the stars all rise in the east and set in the west. And that's because Earth spins -- toward the east. ... Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
Let me know if this is wrong...good luck and hope this helped!
Why reason best illustrates why Hershey and Chase chose to use viruses in their experiments?
A.)Viruses are made up of the two things that scientists were studying at the time, proteins and DNA.
B.)Viruses cannot make humans sick, but bacteria could.
C.)Viruses are immune to radioactivity and cannot be degraded by it.
D.)Viruses are easy to obtain and manipulate.
Final answer:
Hershey and Chase chose to use viruses because they are made up of DNA and proteins, and bacteriophages, in particular, inject only their DNA into the host cells. This was essential for proving that DNA is the genetic material responsible for heredity.
Explanation:
The reason that best illustrates why Hershey and Chase chose to use viruses in their experiments is A.) Viruses are made up of the two things that scientists were studying at the time, proteins and DNA. Hershey and Chase were focused on determining whether DNA or proteins were the genetic material responsible for heredity. They used the T2 bacteriophage, a virus that infects bacteria, particularly E. coli, because a bacteriophage's life cycle involves attaching to a bacterial cell and injecting its genetic material into the host. Unlike animal viruses, which enter the host cell completely, bacteriophages like T2 only insert their nucleic acids (DNA), leaving their protein coats outside.
By using radioactive isotopes to label DNA and proteins separately, they could trace the fate of each component after the T2 bacteriophage infected the bacteria. They found that only DNA entered the bacterial cells, leading to the production of new viruses. This provided strong evidence that DNA is the genetic material, as proteins did not enter the cells. Therefore, the use of bacteriophages, which separated the involvement of DNA and proteins during infection, was crucial for their experiments and the discovery that DNA contained the instructions for heredity.
guys,please help me...Urgent!! easy question!!
The phenomenon described in the paragraph is called as.....
*The surface of the earth is heated by solar heat. During the night, the heat leaves the space. But the different types of gases and water vapors in the atmosphere absorb some of the heat released into the space. This makes the Earth's atmosphere warm. This phenomenon helps to create an environment conducive to life.
Answer:
Greenhouse Effect
Explanation:
This is called Greenhouse Effect because it is the same concept applied on Greenhouses to grow plants in any time of the year.
Final answer:
The phenomenon described is the Greenhouse Effect, a natural process where greenhouse gases trap heat in the Earth's atmosphere, maintaining a temperature conducive to life. Human activities have intensified this effect, contributing to climate change.
Explanation:
The phenomenon described in the paragraph is known as the Greenhouse Effect. This natural process is essential for maintaining the Earth's temperature at a level that supports life. Solar radiation from the sun heats the Earth's surface during the day, and at night, the heat radiates back towards space. However, greenhouse gases in the Earth's atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, absorb some of this heat, trapping it and preventing it from escaping into space. This process acts like a thermal blanket around the planet, keeping the Earth's atmosphere warmer than it would be without these gases.
While the Greenhouse Effect is a natural and necessary phenomenon that allows life to flourish on Earth by maintaining a habitable climate, human activities have intensified this effect. The burning of fossil fuels, deforestation, and other practices have increased the concentration of greenhouse gases in the atmosphere, enhancing the Greenhouse Effect and contributing to global warming and climate change. This alteration of the Earth's natural greenhouse effect is a major environmental concern, affecting weather patterns, ecosystems, and the global climate.
Bacterial cells have ...
-a cell wall only
-both a cell membrane and a cell wall
-a cell membrane and walls around each of their inner organelles
-a cell membrane only
B, both a cell membrane and a cell wall
Explanation:
I did some research, and this is most likely the answer. "The cell membrane is an integral part of every cell because without a cell membrane, there would be no cell." "A cell wall is a layer located outside the cell membrane found in plants, fungi, bacteria, algae, and archaea."
(I am not positive if this is right or not)
Hope you have a good day! :)
Which body system is responsible for
bringing food and oxygen to
every
cell in
your body?
a. respiratory
c. excretory
b. circulatory
d. reproductive
Answer: B
Explanation: The circulatory system is responsible for bringing food and oxygen to every cell in your body. The respiratory system is responsible for carrying oxygen and carbon dioxide in and out of your body. The excretory system is responsible for removing waste from your body.
Hoped this helped!!!!!!
Circulatory system is responsible for bringing food and oxygen to every cell in your body. Thus option B is correct.
what are the components of circulatory system ?The circulatory system is involve in for delivering nutrients, oxygen, and hormones and removing waste from the body.
The major components are the heart, blood, and blood vessels.
The heart is a muscular organ present in the chest pumps blood continuously around the body through the network of blood vessels.
The heart ensures every cell of the body receives nutrients and oxygen through the blood.
Blood is a fluid connective tissue, the major types of cells are red blood cells, white blood cells or leukocytes, and platelets or thrombocytes.
The function of blood include transporting oxygen and nutrients, removing waste, protecting our immune system, and maintaining homeostasis.
Blood vessel is a tube-like structure, there are three major types of blood vessels such as Arteries, Veins, Capillaries.
Thus option B is correct.
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Although outer space can be extremely cold spacecraft must also be able to release excess heat different parts of a spacecraft may need to be heated or cooled in different situations since outerspace is there perfect vacuum the main way that he is expelled is
Answer:
with radiators that release electromagnetic radiation into space.
Explanation:
Spacecraft use radiators that release electromagnetic radiation into space to get rid of excess heat.
Since outer space is a near perfect vacuum, this means that many of the common ways that heat is expelled on Earth do not work in space. Since spacecraft do not touch any other objects in space, they cannot lose heat through conduction. Since there is no air, they cannot lose heat through convection either. Instead, spacecraft use specially designed radiators, which emit excess heat as electromagnetic radiation—infrared light.
Both GMOs and unmodified heirloom plants are commonly able to pass on genetic material through "Blank" gene transfer without human assistance.
Answer:
Energy
Explanation:
I honestly don’t know
Answer:
The Answer is Vertical Gene Transfer
Explanation:
I got it right on the quiz!
If artificial eutrophication continues, what do you think will eventually happen to an ecosystem of water?
Answer:
Ecosystem will be negatively impacted.
Explanation:
Eutrophication is the process in which the amount of nutrients in a water body increase due to the run off from the nearby agricultural land.
Due to the enhancement of nutrient content of water, the productivity of water plants increases and they increase in number rapidly thereby covering the surface of the water body. This restricts the dissolution of oxygen in water from atmosphere and also causes depletion of existing dissolved oxygen. In absence of sufficient oxygen the water animals start dying.
Artificial eutrophication can disrupt a water ecosystem by causing overgrowth of plants and algae, leading to oxygen depletion and ultimately the death of marine life.
Explanation:If artificial eutrophication continues, it could have devastating effects on a water ecosystem. Eutrophication is the process where a body of water becomes overly enriched with minerals and nutrients, which induces excessive growth of plants and algae.
This overgrowth could cause a significant reduction in oxygen levels in the water body, leading to the death of other aquatic species such as fish. As the plant and algae die off, bacteria break it down, further depleting the oxygen, leading to a state called hypoxia or anoxic condition. As a result, the water body eventually becomes a 'dead zone' devoid of marine life, disrupting the balance of the water ecosystem.
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plz i need help!!! describe three factors that affect the climate of an area.
Answer:
Three factors are:
1) Distance from the sea
2) Ocean Currents
3) Direction of prevailing winds
What are the stages of secondary succession
Answer:
Sequence of events that occur in secondary succession
Secondary succession is one of the two types ecological succession of a plants life. As opposed to the first, primary succession, secondary succession is a process started by an event (e.g. forest fire, harvesting, hurricane, etc.) ... Seeds, roots and underground vegetative organs of plants may still survive in the soil
Explanation:
mark brainlest plz
Secondary succession involves a disturbance in an environment, the establishment of pioneer species, competition between species for resources, and finally stabilization, with a climax community being formed. Each stage contributes to diversity until stability is achieved.
Explanation:The stages of secondary succession involve various phases from the growth of organisms in an environment after a disturbance to the establishment of a climax community. The stages include:
Disturbance: This is the initial change in the environment which can be natural or human-induced. Establishment: Opportunistic species known as 'pioneer species' colonize the area first, usually plants or lichens. Competition: As more resources become available, other species compete to colonize the area. Stabilization: A climax community is formed once the establishing species are outcompeted.
In all stages, each subsequent appearance of flora and fauna contributes to diversity in the ecosystem until stability is achieved.
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Your body saves every part of the food you eat.
TrueOr False
Answer:
False, you can save every food you eat it just goes to your stomach then the rectum
-Hops
Asexual reproduction provides an advantage to organisms under which of
the following conditions?
Umm so this question is throwing me a little. C makes some sense to me, as if there is direct competition, being able to practically duplicate can become useful. A doesn't make sense to me because if there is a decrease in resources, cloning isn't an advantage because there is no variation and therefore no members in the population that could utilize other resources and survive. I don't see how, when being seperated (B), asexual reproduction is very advantageous, as I guess a bigger population could allow the seperated organisms to join together again but that's not much of an advantage. D.... I mean if predation is lowered I GUESS being able to make exact copies of the same organism is a kind of advantage...I'm not 100% sure but I'm leaning towards C, though D may sense too. I hope I can help a little, at least to narrow down some choices. Have a good one!
Which are uses of lasers? Check all that apply.
scanning a bar code on a price tag for a shirt
creating a magnified image of the moon
cutting an iron bar into two pieces
reshaping a cornea to improve vision
making a leaf appear larger so its veins are visible
Answer:
Scanning a bar code
Reshaping cornea
Explanation:
Answer:
a
Explanation:
What can occur in plants and animals that result in changes? (Choose all the apply)
a
random trait mutations
b
modifications
c
growth factors
d
none of the above
I think the changes will be growth factors
Answer:
i dont even know but i believe it is random trait mutations.
Explanation:
the traits of the offspring are the ____ variable. genes of parents are the _____ variable
Answer:
dependent, independent if that's whats in the dropbox
Explanation:
Answer:
dependent, independent if that's whats in the dropbox
Explanation:
Explanation:
4. Are single celled life forms more or less complex than multicellular organisms? Defend your
answer
Which sustainable building practice does the photograph show?
Does the image demonstrate the sustainable building technique of adopting high-density dwellings to conserve resources. So, the correct option is C.
What is conservation of resources?Conservation is the process of looking after some of these resources in order that all living creatures can use them in the present and the future. Everything we need to survive, including food, water, air, and shelter, is derived from natural resources.
We may conserve the resource by recycling it. For instance, a lot of things can be recycled or used to make new ones. Paper, plastic, glass, metal, and even electronic products are recyclable resources. In the above given example, the image demonstrates the sustainable building technique of using high-density dwellings to conserve resources.
So, the correct option is C.
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Your question is incomplete, most probably the complete question is:
Which sustainable building practice does the photograph show?
A. Replacing wilderness with buildings to reduce the absorption of
carbon dioxide
B. Reusing old bottles and cans as insulating building materials
C. Using high-density housing to conserve resources
D. Reducing fossil fuel consumption and its associated pollution
SUBMIT
Which statements describe characteristics that are common to both plants and animals? Check all that apply.
They have nuclei.
They are autotrophs.
They have cell walls.
They are multicellular.
They are heterotrophs.
Answer:
They have nuclei and multicellar so A and
Explanation:
The characteristics that are common to both plants and animals are they have nuclei and are multicellular. The correct option is A and D.
What are plants and animals?The plant is an autotrophic organism that can not move, and it produces leaves and fruits ad feed animals. Animals are heterotrophic organisms that can move, except sponges.
The plant contains a cell wall, but animals do not, and both cells contain nuclei.
Thus, the correct option is A, They have nuclei, and D. They are multicellular.
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