a freight train and a passenger train are both traveling away from philadelphia. the distance, d, in miles, from philadelphia after h ours is described for each train below

A Freight Train And A Passenger Train Are Both Traveling Away From Philadelphia. The Distance, D, In

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Answer 1

Answer:

a b and c im pretty sure.

Explanation:

Answer 2

Answer:

what the other guy said was correct i got it correct

Explanation:


Related Questions

Has plasticity allowing this layer to be flexible
A. Asthenosphere
B. Mantle
C. Lithosphere
D. Inner core

Answers

Answer:

C?

Explanation:

Mitosis division occurs in.....????
-prokaryote
-body cell
-all of the mentioned
-sex cell

Answers

Mitosis division occurs in body cell

explain how precipitation affects the phosphorus cycle

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Answer:

Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.

Explanation:

The precipitation affects the phosphorus cycle in many ways where the soil erosion will take place if the precipitation happens then the weathering of rocks along with the soil getting off will make the nutrients loss in the soil.

What is the cycle of rain called as ?

The cycle of the rain is  called as water cycle where the evaporation along with the condensation takes place.

If the precipitation level in the atmosphere is increased then in this case it will increase the transportation of phosphorus along with the other nutrients into soil along with the water sources and the coastal areas as well.

The main reasons of such scenario is because of the deforestation, loss of habitat by the continued invasion of human activities in the natural resources. The reduction of nutrients loss in  soil makes an huge impact over the  phosphorus cycle.

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How is the space shuttle able to leave earth's surface?

PLEASE TELL ME IS ITS A, B, C, OR D

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Answer: A

Explanation:

The shuttle needs to go up in order to get into space, this means they need to create a force greater then gravity because if they didn’t the shuttle wouldn’t be able to accelerate upwards

The space shuttle is able to leave Earth's surface when the space shuttle engine creates an upward force that is greater than downward force of gravity.

The force of gravity pulls every towards the center of the Earth, to overcome this force of gravity the space shuttle will create an upward force that is greater than force of gravity.

The upward force created by the space shuttle engine must overcome the downward force of gravity on the space shuttle.

To overcome the force of gravity, the space shuttle engine speeds upwards with a velocity known as escape velocity.

Thus, we can conclude that the space shuttle is able to leave Earth's surface when the space shuttle engine creates an upward force that is greater than downward force of gravity.

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If a species has a 2n number of 18, how many autosomes would their SOMATIC cells have?

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Answer:

If a species has a number of chromosomes 2n = 18, then its somatic cells have 16 autosomes.

Explanation:

Somatic cells are diploid, that is, they have the complete chromosomal charge, and it is represented as 2n. In organisms with sexual reproduction the chromosomes are divided into autosomes and sex chromosomes, which are 2.

If a species has a number 2n = 18, it means that its somatic cells have 18 chromosomes, of which 16 are autosomes and 2 are sex chromosomes. Autosomes contain the structural and functional characteristics of an individual, while the sex chromosomes determine sex.

Did the medical assistant have the syringe properly positioned

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Answer:

the medical assistant could have positioned the syringe wrongly, as it could have been the one causing pain and irritation, and it was vital to confirmed..........

Cellular respiration is the chemical basis of how cells release energy from foods. When you eat an apple, your cells extract energy. The text below explains how cells use cellular respiration to extract energy from an apple. Choose the parts of the sentence that are incorrect.

The apple first enters the digestive tract through the mouth, where digestion begins with chewing. Enzymes begin to break down the apple in the mouth. From the digestive tract, the glucose from the digested apple is absorbed into the bloodstream, where it is brought to cells throughout the body. In the chloroplast, the glucose begins cellular respiration. The molecules react with carbon dioxide to release energy. Oxygen is produced as waste

Answers

Answer:

chloroplast is def wrong

Explanation:

it is mitochondria

Physical and chemical properties of
the earth
A. are the same in every layer.
B. are the same in the inner and outer core.
C. are used to distinguish the layers of the earth.
D. never change.

Answers

Answer:

B...................

Answer: C

Explanation: are used to distinguish the layers of the earth

In which cell will materials
move faster from the cell membrane to the center of the cell? Why?

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Explanation:

small cell because of its smaller size so the way from the cell membrane to the center of the cell will be shorter.

Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow.
What characteristic do these cels most likely share with cancerous cells?
O They form tumors.
O They spread through the blood.
• They divide rapidly.
O They contain a mutation.
A

Answers

Answer:

They divide rapidly

Explanation:

Some normal cells such as hair follicles cells, mouth cells, digestive tract cells, and bone marrow cells divide rapidly. In mammalians, hair follicle cells are cells localized in the skin, specifically in the dermal layer of the skin. In this region, epidermal cells that form the root of the hair divide rapidly by interacting with neuropeptides, hormones, and immune cells. On the other hand, the bone marrow is a spongy tissue found in bones that contain stem cells (which also divide rapidly). In consequence, it is well-known that high-dose chemotherapy treatments may damage these types of cells.

What is the PURPOSE of meiosis?
A. to make sperm & egg
B. to make food from sunlight
C. to make new boy cells
D. to make fertilized eggs

Answers

Answer:

to make sperm& egg

Explanation:

to make sperm& egg

8. Why did Ofelia and Marcus keep everything the same for the plants except for the type of fertilizers?
a. They didn't know how to make an experiment.
b. They included many different independent variables.
c. They used constants/controlled varjables so only the independent variable was different.
d. They included many different dependent variables.

Answers

Answer:

b. They included many different dependent variables.

Explanation:

Changing something that does not matter is called  a dependent variable.

also to me at least that's the only one that makes sense  

The answer is b. They included many different independent variables

Part B - Threats to biodiversity Three types of threats to biodiversity are: habitat loss and fragmentation the introduction of exotic, or non-native, species overexploitation, or overharvesting

Answers

Complete question:

Three types of threats to biodiversity are:

habitat loss and fragmentation the introduction of exotic, or non-native, species overexploitation, or overharvesting.

Determine the type of threat that each of the following statements describes.

1. a wetland is drained to make room for a housing development.

2. south american rodents called nutria eat wetland plants and cause bank erosion in the united states.

3. some fishing nets damage the seafloor.

4. melaleuca trees from australia displace native wetland vegetation in florida.

5. small rainforest remnants have less diversity than larger rainforest remnants.

6. cod are caught faster than they can reproduce.

7. florida panthers were geographically cut off from other panthers about 100 years ago.

8. wild american ginseng populations have declined as a result of increased demand for the roots.

Answer:

1. a wetland is drained to make room for a housing development.--> habitat loss and fragmentation

2. south american rodents called nutria eat wetland plants and cause bank erosion in the united states.--> introduction of exotic, or non-native, species

3. some fishing nets damage the seafloor.

--> overexploitation, or overharvesting

4. melaleuca trees from australia displace native wetland vegetation in florida.

--> introduction of exotic, or non-native, species

5. small rainforest remnants have less diversity than larger rainforest remnants.

-->habitat loss and fragmentation

6. cod are caught faster than they can reproduce.

--> overexploitation, or overharvesting

7. florida panthers were geographically cut off from other panthers about 100 years ago.

--> habitat loss and fragmentation

8. wild american ginseng populations have declined as a result of increased demand for the roots.--> overexploitation, or overharvesting

Explanation:

Habitat loss and fragmentation. Refers to the effects of human activities and their expansion in space as populations get bigger and economic activities increase. The expansion of agriculture and cattle industry limits are one of the most important activities responsible for habitat fragmentation. In the last few years, the real estate industry took an important role in habitat fragmentation and alteration. Following this idea of "progress", government and private enterprises alter the natural and pristine environment and open new areas destined for different activities, in most cases contaminating the area. A progressive and continuous change occurs in the natural environment. Following the reduction of habitat, there is a decrease in the size of populations of the affected native species. The species richness decreases, and there is no connection or paths among isolated areas.The introduction of exotic, or non-native, species. Refers to biological invasions. New species that establish in a new area far or out of their original distribution range. These species might be considered exotic or invasive, according to their reproductive rate, population growth, and interaction with native species. Once established, the introduced species expand their distribution from the first invaded spot and overgrows. It is very common for these species to start new populations in the new area, where they have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-, and these factors favor their establishment. As they expand, they compete with other species for resources. In the case of plants, these resources are water, place, radiation, exposure, among others. Species are considered to be invasive because of their reproductive rate, population growth, and interaction with native species, which provokes huge damages in the native ecosystems.  Biologic invasions are natural processes, that occur in small groups of individuals that can expand to other ecosystems, and the appearing or despairing of barriers promotes their expansion.  But these biologic invasions have accelerated by human beings, referring to this as "human-assisted invasions". These are the cases in which men transport species from one place to the other for different uses or purposes.  It is very common for these species to scape and start new populations in the new area, where they have less environmental pressure -fewer predators, more resources, better nitches- than in their origin area, which favors their establishment.  Overexploitation, or overharvesting. Refers to the unlimited use of resources. People, acting by their own needs or interests, may exceed the harvesting, affecting the resource population and, therefore, other users. Overexploitation might lead to the extinction of the species that are taken in excess and to the decrease in the size of other organism´s populations that also depend on those resources.

Which of the following engulfs pathogens or an invading virus or bacteria
-t cell
-b cell
-macrophage
-red blood cell

Answers

Answer:

Macrophage

Explanation:

They do this through a process called phagocytosis

The following engulfs pathogens or an invading virus or bacteria - macrophage.

Macrophagea type of white blood cell of the immune systemengulfs and digests pathogens, an invading virus or bacteriait recognizes anything that does not have, on its surface, proteins that are specific to healthy body cells.surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.

Thus, The following engulfs pathogens or an invading virus or bacteria - macrophage.

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RIGHT ANSWER GETS BRAINLIEST

Answers

Answer:

analyze the results

Explanation:

Answer:

Free point :D

Explanation:

Drag each tile to the correct box.
Sort the types of energy according to the order in which they move through this system:
Water stored in dams falls freely with the force to make a turbine move. The turbine moves and produces electricity. This electric energy is
supplied to homes. At home, we use electricity for heating, cooling, and lighting.
Put these in order:

Electrical energy

Light energy

Potential energy

Kinetic energy

Answers

Answer:

Electrical energy > kinetic energy > light energy > potential energy

Explanation:

Which type of fossil is formed by sediments and found in sedimentary rock?
O mold of a fish
O petrified wood
• carbon film of a leaf
O preserved insect

Answers

Answer: Carbon film of a leaf

Answer:

C

Explanation:

Trust me on this, also can I have brainlest.

Year after year, Xavier raises a vegetable garden in the same plot of soil. He observes that the plants grow less abundantly from one year to the next, and they produce fewer vegetables. Which of these processes could help explain Xavier's observations?
A. the rate at which soil bacteria perform photosynthesis
B. the rate at which soil bacteria perform denitrification
C. the rate at which soil bacteria perform nitrogen fixation
D. the rate at which soil bacteria perform chemosythesis

Answers

Answer:

C. The rate at which soil bacteria perform nitrogen fixation

Explanation:

Since Xavier is raising vegetables in the same spot year after year it is reasonable to expect that the plants would deplete the soil of its resources. Since the soil doesn't have enough minerals and not enough time for the bacteria to perform nitrogen fixation the plants don't grow at the same rate and numbers that they used to at the beginning.

Organisms that complete the final breakdown and recycling of organic materials from
the remains of all organisms are the
detritivores
omnivores
decomposers
O carnivores

Answers

Answer:

decomposers

Explanation:

These are heterotrophic organisms that feed on dead animals and plants, secretions, or discarded parts of living beings, that is, organic matter.

And they break it down into inorganic.

Thus, inorganic substances that can be reused in the process of photosynthesis are returned, recycled, to nature.

if some can help me with my biology final the whole 25

Answers

Answer:

add the answers if you dont know

Explanation:

Answer:

KC is looking at cells in biology class, but he doesn't know where they came from. He sees that the cells under his microscope have cell walls and chloroplasts. Therefore, KC is likely observing cell from:

A leaf that got blown onto the floor.

Plant cells are the only cells w/ chloroplast!

Explanation:

pick me as the brainliest

Please help I’m begging you please

Answers

Answer:

g

Explanation:

Answer:

A.

Explanation:

Because when the wolf numbers are low the deer numbers are high which means that the wolves have not been eating the deer, possibly because of a lack of wolves.

What of the following happens first?

Answers

Answer:

you should give options too

Answer:

it is c

Explanation:

because it is scientificly proven

Which of the following serves as the cell's boundary from its environment
and controls what goes in and out of the cell? *
O Mitochondria
O Cell membrane
O Chloroplast
Golgi Apparatus

Answers

B. Cell membrane
Remember cell membrane is the structure aka “wall of the house” is the clear boundary between the cells internal and external environments:))
Hope this helps

How old do paleontologist believe the earth is?

Answers

Answer:

Scientists now know the Earth is actually 4.54 billion years old, an age built on many lines of evidence from the geologic record.

Explanation:

Scientists now know the earth

HURRY RUNNING OUT OF TIME FIRST CORRECT ANSWER GETS A CROWN

Purple flowers are dominant over white flowers. The parent generation includes two heterozygous parents.

What are the possible phenotypes of these parents’ offspring?


3 purple and 1 white

3 white and 1 purple

1 purple, 2 lilac, and 1 white

1 white, 2 speckled, 1 purple

Answers

Answer:

3 purple and 1 white (i think)

Answer:

3 purple and 1 white.

Explanation: Took the exam, got 100

pls help i’ll do anything
The solar energy necessary for photosynthesis is converted to chemical energy and released for the cell's use by which process?

A. transpiration
B. respiration
C. distillation
D. radiation

Answers

I think the answer would be respiration

Answer:

respiration

Explanation:

research on obesity rates and genetically based skin color illustrate different types of biological change because

Answers

Explanation:

research on obesity rates and genetically based skin color illustrate different types of biological change because obesity rates demonstrate an evoked cultural response; genetically based skin color does not.

Which is a requirement for natural selection to occur?

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Answer:

so you're going to need natural selection you're going to need reproduction h e r e d i t y variation and fitness or orgasms variation in individual characters among the members of the population if they are met in natural selection automatic results

Answer:

A heritable variations for some traits

What is the correct definition of a gene?

Answers

a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

I need help please?!!!!!

Answers

skateboard & bicycle.

Answer:

a Bicycle and Skateboard

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