Questions by Opera

Questions by Opera

The person who introduced vaccination into Europe was a. Robert Koch. b. Louis Pasteur. c. Edward Jenner. d. Mary Montagu.

asked Aug 7, 2021

1 answer

1 vote

57.0k views

In which part of the heart do the endocardium extensions form? atria aorta SA node valves ventricles

asked Jul 11, 2021

2 answers

3 votes

211k views

What was the mark on the trees that explorers make

asked Jul 10, 2021

2 answers

3 votes

70.7k views

Calculate the percentage difference in the fundamental vibrational wavenumbers of 23Na35Cl and 23Na37Cl on the assumption that their force constants are the same. The mass of 23Na is 22.9898mu.

asked Jun 22, 2021

2 answers

4 votes

193k views

Kathryn always watches the reruns of her favorite TV show. She generally doesn't smile or show any expression while watching these. Once, while watching an episode, Kathryn was asked to smile by her mom.

asked Jun 7, 2021

1 answer

1 vote

161k views

6y+29 what's the constant?

asked Apr 16, 2021

1 answer

5 votes

89.8k views

What do you mean by the active participation of people? Why is it importa in the development of a country? Present your views.

asked Mar 8, 2021

1 answer

3 votes

64.9k views

What is an isoelectronic series

asked Mar 8, 2021

2 answers

2 votes

122k views

In this activity, you will write a toast that you would give at a teacher's farewell party. Use the formal imperative that you have learned to toast your teacher. Write your response in Spanish and submit

asked Feb 23, 2021

1 answer

5 votes

195k views

A(n) __________ is an organism that breaks down decaying organisms and organic matter to obtain energy.

asked Jan 23, 2021

1 answer

2 votes

103k views

El Dia de Independencia y el Cinco de Mayo son dias de celebraciones culturales. Cual es in dia de celebracion en the pais? Cuales son unas costumbres que tienes en esos dias? Tu respuesta debe ser grabada

asked Sep 19, 2020

1 answer

2 votes

85.0k views

Find the value of y.

asked Jul 12, 2020

1 answer

0 votes

74.5k views

The majority of austalians live in

asked Feb 27, 2020

2 answers

2 votes

76.0k views

The orbit of a spacecraft around the Sun has a perihelion distance of 0.1 AU and an aphelion distance of 0.4 AU. What is the semimajor axis of the spacecraft? What is its orbital period?

asked Jul 9, 2019

1 answer

1 vote

149k views

2. You have just signed an annual contract with TELUS for a cell phone. The base rate is $22 per month and $0.44 per minute. There are no free minutes included with this contract. a) Write a linear equation

asked Mar 25, 2019

2 answers

2 votes

7.9k views

Q6 Q21.) Verify the identity, write the left side numerator in terms of a sum or difference formula for sine or cosine, rewrite the expression found in the previous step by separating the denominator,

asked Jan 9, 2019

2 answers

2 votes

111k views

How did Ida Tarbell change society?

asked Oct 27, 2018

1 answer

3 votes

184k views

Find the y-intercept and x-intercept of the line. 2x - 4y = 13 y-intercept: __ x-intercept: __

asked Jun 22, 2018

1 answer

3 votes

128k views

Which sentences have spelling errors? Jenna did not want her parents to medal in her personal life There is no excuse for leaving the dishes dirty after you cook a big meal. We studied the effects of the

asked Jan 22, 2018

2 answers

4 votes

169k views

an object accelerates from rest to a velocity of 4.om / s over a distance of 20m . what was it's acceleration

asked Dec 26, 2017

1 answer

1 vote

170k views

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