What was the procedure during the first successful vaccination?

Answers

Answer 1
The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. He observed that milkmaids who previously had caught cowpox did not catch smallpox and showed that inoculated vaccinia protected against inoculated variola virus
Answer 2
Sheeeeeeeesssshhhhhhhhh

Related Questions

What's muscles are affected?PLEASE ANSWER a-c

Answers

Answer:

do it in your self hahahahahaa

the blood speed in a normal segment of a horizontal artery is 0.15 m/s. An abnormal segment of the artery is narrowed by an arteriosclerotic plaque down to one fifth its normal cross sectional area. What is the difference in blood preassures between the normal and constricted segments of the artery. The density of the blood is 1060

Answers

Answer:

286.2  pa

Explanation:

Blood speed in a normal segment of a horizontal artery ( v2 ) = 0.15 m/s

Density of blood = 1060 kg/m^3

Normal sectional area = A2

constricted sectional area ( A1 )= 1/5 A2

Determine the difference in blood pressures between the normal and constricted segments

we will apply Equation of continuity     Av = constant

Δ p = 12 PV^2

     = 12 * 1060 * ( 0.15 )^2

     = 12720 * 0.0225  =  286.2  pa

attached below is a detailed solution of the Given problem

Every organism needs energy to survive. A process in which oxygen is combined with the
breakdown of sugar (glucose) molecules, releasing energy and giving off carbon dioxide and
water, is known as which of the following reactions?
a. Transpiration
b. Cellular Respiration
C. Carbon Fixation
d. Photosynthesis

Answers

The gastrointestinal tract is absent in

Study the image of a plate boundary. The Asthenosphere is being divided by the Lithosphere on the left of the diagram. Oceanic crust is above the Lithosphere and continues until it reaches the Continental crust on the right. The Lithosphere layer on the right is moving left toward the Lithosphere layer on the left that is moving right and down. Two volcanoes are above the area where the lithosphere layers meet. Which feature is forming? mountain rift valley earthquake island chain

Answers

Answer:

Sorry about the guy above me lolz, the answer is A :))

Explanation:

Have a great day !! muah

Answer:

It is island chain which on mine is D

Explanation:

Please match each description to the correct group of microorganisms.
1. Single-celled prokaryotes (Click to select)
2. Single or multi-cellular eukaryotes that photosynthesize to obtain energy (Click to select)
3. Multicellular eukaryotic organisms like parasitic worms (Click to select)
4. Minute acellular particles that parasitize cells (Click to select)
5. Molds and yeasts (Click to select)
6. Unicellular eukaryotes often described as animal-like

Answers

Answer:

BacteriaAlgaeHelminthsVirusFungiProtozoa

Explanation:

1) Single-celled prokaryotes are grouped as Bacteria because they do not have the neck ear envelope

2) Single or multi-cellular eukaryotes that photosynthesize to obtain energy are grouped as Algae example : Diatoms and kelps

3) multicellular eukaryotic organisms like parasitic worms are grouped as Helminths because they both infect and depend on their host for food

4) Minute acellular particles that parasitize cells are grouped as Virus and they depend on their host for reproduction

5) Molds and yeasts can be referred to as  Fungi . they breakdown organic matters found in dead particles

6) Unicellular eukaryotes often described as animal like  are grouped as Protozoa and they connect animals and protists

Briefly explain the nature of scientific inquiry. Include discussion of the role that evidence and falsifiability play in the process. Is this a strength or a weakness of the scientific mode of
thinking?

Answers

Answer:

Science is a process that involves proof and error. Scientific hypotheses are used to find evidence supporting scientific statements, but new evidence can be used to reject previously accepted ones in order to get closer to the truth.

Explanation:

Scientific inquiries refer to the processes by which scientists study phenomena of the natural world and propose alternative explanations (hypotheses) useful for understanding such mechanisms. When hypotheses are supported by many evidence and studies from different sources, scientific theories associated with these hypotheses become accepted by the scientific community. In science, a scientific statement may become falsifiable when it is contradicted by new lines of evidence and/or new observations.

How many amperes of current will flow in a circuit if the voltage difference is 9V and the resistance in the circuit is 3Ω

Answers

For your answer it will be 3

What are the important plants in agriscience?

Answers

Answer:  Major grain crops are corn, wheat, barley, oats, rye, rice, sorghum, and soybeans. Less than 10 percent of the corn grown in the U.S. is for human consumption. Legume plants such as dry beans and peas are important foods in the diet of many Americans and people around the world.

Explanation:

how can explain that man is the cause for destruction of natural resources​

Answers

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what grow downward into the soil to form roots

please answer fast

Answers

Answer:

Explanation:

The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot

Introduction : Scientists who study earth's layers are called geologists. Since they cannot see inside the earth, they use geological clues to help them. These clues are gathered from activities such as volcanoes and earthquakes. From these clues , geologists make inferences about what the inside of Earth actually looks like.
Question: Name the main layers of the Earth from the inside to the surface.

Answers

Answer:

Inner core, the outer core, the mantle, and the crust.

Match the statement with the correct term from the list.
Any ____________ is a blank that you are filling with a choice from the list. Choices may be used once, more than once or not at all.
1. Enzyme which transcribes DNA ______________
2. Location of transcription in a eukaryotic cell __________
3. Specific sub cellular structure completes translation _____________
4. Product of transcription ___________
5. Transportation of amino acids _____________
6. Product of translation ____________
7. Druing translation complimentary base pairing occurs between mRNA and ______________
8. Start codon for translation_________

Answers

Answer:

Explanation:

1.RIbonucliec acid (RNA) polymerase

2. Nucleus

3. Ribosome

4. Intermediate messanger RNA(mRNA)

5. tRNA(transfer RNA)

6. Amino acids

7. tRNA that specifies for each codon of amino acids read on the mRNA

8. 5'AUG Methionine

RNA polymerase is the enzyme that helps in transcribing DNA and it occur in the nucleus before it is being transferred to the ribosome where translation occurs. The end product of translation is amino acids who are functional protein.

Utility companies use _ per month, to determine how much energy is being used.

What goes in the blank ?

Answers

Answer:

Kilowatt-hour

Explanation:

Energy refers to the amount or quantity of power which is being consumed by an individual, group of people or organization over a specific period of time. As the consumers continue to use energy, they're being charged or made to pay a utility fee regularly for their amount of consumption, which is usually calculated hourly (kilowatts hour or kwh).

Hence, power utility companies use kilowatt-hour (KWh) per month, to determine how much energy is being used.

What carries nutrients and oxygen from the mother to the fetus.
A. Umbilical cord
B. Fallopian Tubes

Answers

A. umbilical cord is the answer

Answer:

Umbilical Cord

Explanation:

The unbilical cord uses the blood of the mother to carry oxygen to the blood of the fetus through the placenta.

Which organism obtains energy without directly depending on another organism

Answers

The organism that obtains energy without directly depending on another organism is a PLANT.

PLANTS are organisms which are capable of manufacturing their own food  through the process of photosynthesis.

Photosynthesis is defined as the process by which plants use low energy containing inorganic compounds (example carbondioxide and water) in the presence of sunlight, as energy, to produce high energy organic compounds such as sugar. These sugar are used as source of energy in the plant cells.

While animals are the organisms that directly depend on plants( another organism)

Therefore, the organism that obtains energy without directly depending on another organism is a PLANT.

Learn more about plants  here:

https://brainly.com/question/18265947

In all the laboratories the benches are placed at right angles to windows. Why

Answers

Answer:

in case of emergency

Explanation:

34:58
What is the source of energy that drives photosynthesis?
O sunlight
hydrogen ions
o electrons
O oxygen
"pe here to search
O
Desktop

Answers

The answer to your question is electrons

Answer:

Sunlight

Explanation:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct. Therefore, it is sunlight.

The blue is my guess

Answers

I agree with your guess

10
Select the correct answer.
Which important biochemical process receives a supply of NAD+ions from the fermentation process during anaerobic respiration?
OA Calvin cycle
OB. .
electron transport system
oc glycolysis
OD. Krebs cycle
OE proton pump mechanism
Reset
Next

Answers

Answer:

it is c: glycolysis

Explanation:

its correct on edmentum

Glycolysis is a process of biochemical importance which receives a supply of NAD+ions from the fermentation process during anaerobic respiration. Therefore, option (C) is correct.

Glycolysis  occurs in both aerobic and anaerobic respiration and is a  metabolic process. During anaerobic respiration, glycolysis is the only process that produces ATP.

In the absence of oxygen, the electron transport chain cannot function, and therefore, the Krebs cycle and electron transport system are not active. Therefore, glycolysis is the correct answer.

Learn more about glycolysis, here:

https://brainly.com/question/30828407

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Extensive damage to oligodendrocytes in the CNS could result in reduced speed of nerve impulses. a breakdown of the blood-brain barrier. loss of the structural framework of the brain. inability to produce scar tissue at the site of an injury. decreased production of cerebrospinal fluid.

Answers

Answer:

Loss of the structural framework of the brain.

Explanation:

Damage to oligodendrocytes in the central nervous system leads to the loss of the structural framework of the brain. oligodendrocytes produce the insulating sheath of axons and we know that axons are the nerve fiber that conducts electrical impulses away from the neuron's cell body. Axons are the primary transmission lines of the nervous system that carries impulse throughout the body so if the oligodendrocytes are damaged then our brain did not work properly.

If oligodendrocytes are damaged, the myelin sheaths around axons can be destroyed. This can lead to a loss of the structural framework of the brain, as the axons will no longer be properly insulated. Hence option C is correct.

Oligodendrocytes are glial cells in the central nervous system (CNS) that are responsible for myelinating axons. Myelin is a fatty sheath that surrounds axons and helps to speed up the conduction of nerve impulses.

The loss of the structural framework of the brain can cause a variety of neurological problems, including:

Reduced speed of nerve impulses. As mentioned above, myelin sheaths help to speed up the conduction of nerve impulses. Without myelin sheaths, nerve impulses will travel more slowly, which can cause problems with coordination, movement, and sensation.

Increased risk of seizures. Seizures are caused by abnormal electrical activity in the brain. When the myelin sheaths around axons are damaged, it can increase the risk of seizures.

Cognitive impairment refers to a decline in thinking and memory skills. Damage to oligodendrocytes can lead to cognitive impairment, as the axons will no longer be able to function properly.

Therefore, option C) loss of the structural framework of the brain is correct.

To know more about Oligodendrocytes:

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Study the energy pyramid.

In this pyramid, what level is the frog?

Answers

Answer:

Tertiary consumers i think

Which of the following is a way that nitrogen atoms move from a nonliving part of the environment into a living part of the environment?

Answers

Answer:

person below is correct

Explanation:

Answer:

Nitrogen Cycle

Explanation:

nitrogen moves through the living and non-living environments with the help of decomposers and nitrogen-fixing bacteria

Which of the following statements about green exercise is true?


Environmental health

Answers

Answer:

we cant see the statement

Explanation:

CCG GAT TTT AAT TAG CTA CTA TCG TAC TAC GTT GGT GCT
make complementary dna

Answers

Answer:

CCG GAT TTT AAT TAG CTA CTA TCG TAC TAC GTT GGT GCT.

Explanation:

I have no idea what you are trying to do.

sorry

Which statement describes the role of decomposers in moving nutrients through a food web?

Answers

Answer:

Every part of an ecosystem is vital to its survival – from the green plants to furry animals and microscopic bacteria. The group of organisms called decomposers forms the final link in the food chain. They break down dead animals and plants and return vital nutrients to the soil.

Explanation:

describe the structure of the ovule and the formation of the embryo sac

brainliest to the first well detailed correct answer ​

Answers

Answer:

An embryo sac is said to form when the haploid megaspore nucleus divides. It possesses two haploid nuclei and six haploid cells which do not have cell walls.

Explanation:

I need help on this plzzz

Answers

Answer:

they all stay but move 1 and 5 .. 1 goes to 4 and 5 goes to 1

Please help!! I'll give brainlist!!!​

Answers

Answer:

C. The Bluegill population would increase, but the other organisms would not be affected.

Explanation:

Bluegill are eaten by bass. Bass would be what keeps the Bluegill population under control, but with the bass population decreasing, Bluegill would eventually overpopulate.

Ernest was looking at the following diagram of a cell. Which statement best explains how he should classify the cell?

A) He should classify the cell as a plant cell because it has a cell membrane.
B) He should classify the cell as an animal cell because it has a flagellum.
C) He should classify the cell as a plant cell because it has cytoplasm.
D) He should not classify the cell as either a plant cell or an animal cell.

Answers

Answer:   Its d

Explanation:

Please help me, brainlist will be givin.

Answers

Answer: mouth- D, liver- A, salivary glands- B, Stomach- C, Large intestine- E, Intestinal villi-F, Mechanical digestion- G, Small Intestine- H, Gallbladder- I. brainliest?

Explanation:

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