why have diseases and many other bacterial diseases decreased over the last 100 years?

Answers

Answer 1
In 1915, people were dying in large numbers from infections, but by 2015, the most common causes of death were related to cancer, heart conditions or external causes.

Related Questions

why do animals and plants need nitrogen

Answers

Answer:

They need Nitrogen to make Amino acid, DNA but the nitrogen in the atmosphere can't be used directly. Some nitrogen fixing bacteria fix it then it is able to use for plants and animals.

hope it helps!

Answer:

Plants and Animals need Nirogen and its Sufficent

Explanation:

Plants need Nitrogen especially Crops because they give protein with the help of nitrogen by the help of Rhizobium Bacteria.

With This Protein, Animals ( Herbivores) eat this for energy which contains nitrogen

The graph below shows the mass of plants as succession progresses. What is the
cause of the drop in the moss population?
Pine
Trees
Shrubs
Mass of Plants
Oak
Trees
Grasses
Mosses
Time
The formation of the climax community of the forest
Competition for light and resources with grasses
A lack of soil nutrients in the environment
Competition for light and resources with the oak tree

Answers

Answer:

Competition for light and resources with grasses

Explanation:

Mosses are small, flat brioftas that have no conductive vases, flowers, fruits and seeds. In a situation where a region has an intense density of trees as shown in the question above, mosses may be left with a limited amount of resources necessary for their survival, which will decrease their population. As a result, the moss will compete with other plant species.

In relation to the question above, the population of mosses would decline due to the competition for resources with grasses, this is because grasses have advantages in the absorption of resources, due to their biology.

What is the effect of wildfires on biodiversity?

Answers

Answer:

it damages the earth's atmosphere and harm animals and the air we breath

Answer:

its a

Explanation:

well the answer makes sense because it might decrease some trees but it also gets rid of the bad and rotting trees so more vegetation can grow

Marvin blows up a balloon but lets go of it. The air inside is released and the balloon goes up into the air. What best describes what happens?

Answers

Answer:

The thrust of the air propels the balloon in the opposite direction

Explanation:

Answer:the thrust goes the opposite direction

Explanation: the air is blowing one way while the push of force thrusts the balloon the other way

What is the difference between a heart and a brain?

7 paragraph response.

WILL MARK BRAINLIEST!

Answers

Brain controls nerves

Heart pumps the blood
I’m not going to write seven paragraph, but I’ll do some common differences you can quickly build off of (also use very large words and long sentences to fill the paragraphs, doesn’t even have to be detailed)
Brain controls nervous system. Brain controls out movement. The brain gets the direct messages for our movement responses.
The heart pumps blood throughout the body. The heart had arteries, and veins. Veins are blood carried in, arteries are blood carried out.
Hope this can help :)

The picture shows a girl with a widow's peak.



The girl has a widow's peak because of her
genes, which are located in chromosomes in her cells' nuclei.
hormones, which are passed on from previous generations.
nutrition, and indicates her needs are met.
environment, in which it is an advantage.

Answers

What’s the question so we can help you?

A certain type of horse has two possible alleles for the color of its
coat: black (B) is dominant, while chestnut (b) is recessive. What
would be the phenotype of a horse with the Bb genotype?



A.black
B.chestnut
C.Black with chestnut spots
D.Chestnut with black spots

Answers

Answer:

A. Black

Explanation:

Answer:

.black

Explanation:

How does disease affect blood pressure

Answers

Explanation:

The body has lots of mechanisms that can control the blood pressure, plus, changing the amount of blood the heart pumps, the diameter of the arteries, and volume of blood in the bloodstream. When a disease causes blood pressure to stay high, low, or in between, problems can arise.

Losing 100 orangutans a week is an astonishing number. Within your lifetime they could become extinct in the wild because of human impact. We use palm sugar in many products consumed and other things. Do you feel that it could be said we have a parasitic relationship with orangutans? Defend your answer.

Answers

if the orangutans eat the fruits, basically their place of residence is their only means of obtaining and if the human continues to cut down trees and destroy forests, the fruits will be lost and the monkeys will starve and thus could become extinct.

hope this help (>-<)

Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who is heterozygous for hitchhiker's thumb. What is true of their offspring?

Answers

Answer:

There is a 50% chance the kids will have Hitchhiker's thumb

Explanation:

Because Hitchhiker's thumb is dominant and the woman doesn't have it it's safe to assume her genes for it are hh. In a punnet square it would look like

      h    h

H | Hh  Hh

h  | hh  hh

If that makes any sense I hope it does

Point is, 2 of the 4 boxes would say Hh and the other two would have hh


Sleet is precipitation made of small particles of ice. How does sleet form?

Answers

Answer:

Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets. Sometimes the snow does not completely melt and the partially melted snowflakes refreeze into snow pellets.:

hope this helps!

Answer:

There must be a layer of air near the ground whose temperature is below freezing, where water turns to ice. Above this layer of freezing air must be a layer of warmer air. As snow falls through the warm air, it melts or partially melts into raindrops. It forms sleet before it reaches the ground.

Explanation:

:3

When two liquids have the same osmotic pressure they're said to be
Question 6 options:


hypotonic.


hypertonic.


isotonic.


diffuse.

Answers

Answer:

Isotonic

Explanation:

Answer: isotonic is the Penn Foster test answer

What is the speed of a wave with a frequency of 6oHz and a wavelength of 20m

Answers

Answer:

speed = 1200 m/s

Explanation:

given data

frequency = 60 Hz

wavelength = 20 m

solution

we get here speed of a wave that is express as

speed = Frequency × wavelength    ...............................1

put here value and we get speed

speed = 60 × 20

speed = 1200

so speed of a wave is 1200 m/s

how does building a solar power plant slow down resource depletion?
A. It increase the supply of electricity from alternative sources
B. It reduces the cost of electricity from alternative sources
C. It reduces the demand for electricity overall
D. It increases the consumption of electricity from coal

Answers

Answer: A

Explanation:

A. It increase the supply of electricity from alternative sources

Answer:

A. It increase the supply of electricity from alternative sources

What is the term for deep cold waters that replace warm surface waters?

Answers

Answer: This process is known as upwelling

Explanation:

if a woman tans throughout her life and becomes very dark - even though she naturally has fair skin bc of her fair genes - and she has children with a man who is also fair skinned, the theory of evolution by natural section suggests that she will have offspring with what skin tone? explain

Answers

Answer:

fair skin

Explanation:

she will have fair skin because her tannning isnt natural. it is what her actual genes are that will affect her children's skin tone, not how she alters her body

In humans, B is the allele for brown eyes and b is the allele for blue eyes. Two brothers both have brown eyes, but one of them has both the B and b alleles while the other only has B alleles. Which statement is true about the brothers?

Answers

Answer:

B is the dominate trait, and b is the recessive trait. Putting them together (Bb), would still mean that the brother would have brown eyes, since Bb means that the dominant trait is shown

bb- recessive trait (blue eyes)

Bb - dominant trait (brown eyes)

BB- dominant trait (brown eyes)

Hope this helps!

Which entry is in the wrong position in the table?

Answers

Explanation:

What is the entries you don't have enough stuff for us to find out an answer

Answer:

Its B allergies

Explanation:

How do animals respond to stimuli?



Please help this is my last assignment for the year

Answers

The nervous system is stimulated from the environment through sensory receptors

In cellular respiration, where do the high-energy electrons that move through the electron transport chain originate?

Answers

Answer:

The electrons are carried to the ECT by NADH and FADH+, which are reduced during glycolysis, pyruvate oxidation, and the Krebs cycle.

Describe the role of ATP

Answers

Answer:

the main role of ATP is to provide energy

Explanation:

Jacque is hiking in the mountains and sees a very large and colorful rock layer. It looks different than the surrounding rock layers. What is the best way for Jacque to investigate what the environment was like when this rock layer was deposited?

Jacque could measure the height of the rock layer.

Jacque could check if the rock layer has fossils in it.

Jacque could look at the color of the surrounding rock layers.

Jacque could chip off a chunk of rock from the rock layer and smell it.

Answers

Answer:

Check if the rock layer has fossils in it.

Explanation:

The rock layer from the inside out and the fossils will tell you how old the rock is.

Jacque could check if the rock layer has fossils in it, as the presence and types of fossils can often provide clues about the environment in which they were formed.

What can a rock layer tell about the environment?

To investigate what the environment was like when a rock layer was deposited, there are several approaches that can be taken:

Look for clues in the rock layer itself: The rock layer itself can often provide clues about the environment in which it was formed. For example, the presence of certain minerals or fossil types can indicate the presence of specific conditions, such as warm or cold temperatures, or a marine or terrestrial environment.

Examine the surrounding rock layers: The rock layers above and below the rock layer of interest can provide additional context and clues about the environment. For example, if the surrounding layers are sedimentary rocks, such as sandstone or shale, it may indicate that the area was once covered by water.

Use rock dating techniques: As mentioned earlier, techniques like radiometric dating and relative dating can help determine the age of a rock layer and provide insight into the environment that existed at the time it was formed.

Conduct additional analyses: Depending on the type of rock and the questions being asked, it may be possible to conduct more detailed analyses, such as chemical or isotopic analyses, to gather further information about the conditions under which the rock formed.

Consider the current location of the rock layer: The current location of the rock layer can also provide clues about the environment in which it was formed. For example, if the rock layer is found in a mountain range, it may have formed in a tectonically active area, while a rock layer found in a flat, low-lying area may have formed in a more stable environment.

Learn more about rock dating, here:

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Need help with #6 please:)

Answers

Answer:

high porosity

you need high porosity and high permeability for have an aquifer, which would made the water flow.

The chemical equation below summarizes the burning of a fossil fuel.
Fossil fuel + oxygen gas →
+ water + heat
Which substance belongs in the blank in the equation?
O A. Lactic acid
O B. Carbon dioxide
O C. Nitrogen
D. Ammonia

Answers

Answer: B. Carbon Dioxide

Explanation:

Fossil fuel can release methane and other hydrocarbon. The reaction is processed between methane and oxygen in the air. When this reaction takes place the result is Carbon dioxide, water, and lots of energy (heat)

Hope this helps!

What is the largest object in the image above??

Answers

Answer:

The one to the extreme right

Explanation:

The graph shows the progression of size getting larger from left to right

In Kingdom Animalia, there are is a wide variety of organisms such as humans, reptiles, fish, birds, insects, and mammals. These organisms are different from each other in many ways. Why would scientists classify all of these organisms into the same Kingdom?

Answers

All living organisms are classified into groups based on very basic, shared characteristics. Organisms within each group are then further divided into smaller groups.

Explanation:

Answer:

D :)

Explanation:

Which descriptions refer to cirrus clouds? Select three options.

Answers

Answer:

wispy, high altitiudes, and ice crystals

Explanation:

Answer:

C

Explanation:

Which ecosystem is found mainly in warm tropical waters?coral reefs or kelp forest

Answers

Answer:

coral reefs

Explanation:

they thrive better in warmer waters.

The right answer is coral reefs

At which point is crust neither created nor destroyed?
O island chain
O mid-ocean ridge
divergent boundary
O transform boundary

Answers

Answer:

transform boundary

Explanation:

At a transform boundary, crust is neither created nor destroyed. Therefore, option (D) is correct.

What is  transform boundary?

A transform boundary, also known as a conservative boundary or a strike-slip boundary, is a type of tectonic plate boundary where two plates slide horizontally past each other. Unlike convergent boundaries (where plates collide) or divergent boundaries (where plates move apart), transform boundaries involve plates moving alongside each other in opposite directions or in the same direction but at different speeds.

The movement occurs along a fault line, known as a transform fault. Transform boundaries are characterized by intense seismic activity, resulting in earthquakes. They can also cause the formation of prominent landforms, such as transform faults, fracture zones, and offset rivers or valleys. Examples of transform boundaries include the San Andreas Fault in California, which separates the North American and Pacific plates, and the Alpine Fault in New Zealand, separating the Pacific and Australian plates.

Learn more about transform boundary, here:

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In plants, asexual reproduction is most likely to occur through the:

Answers

Answer:

Roots

Explanation:

The cells split into two of the same copy of itself (unless a bug has occurred, in which case a malform will occur), and the two copies are known as the offspring. In this case, only one pair of genes is inherited, and will continue to be the pair that is passed down (if no malform occurs).

~

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