Select the statement below that is true concerning the smallpox
a. has not occurred naturally anywhere in the world since 1977.
b. All of the choices are correct.
c. has potential as a weapon of bioterrorism. d. aided European domination of new world nations.
e. has killed millions of people.​

Answers

Answer 1

Answer:

letter a. has not occurred naturally anywhere in the would since 1977 Ang sagot diyan


Related Questions

Help I need answers

Answers

Answer:

D

Explanation:

A triplet of bases in a template strand of DNA is CAG. What would be the corresponding codon for mRNA?
GTC
GUC
OGTU
GUU

Answers

GUC would be the corresponding codon for mRNA.

Why is the abundance of viruses in water
directly related to the abundance of microbial life
in the water?

Answers

Answer

viruses kills cells and microorganisms can thrive where other species have been wiped out.

Explanation:

Microorganisms can flourish in areas where other species have been  off because viruses damage cells.

In how many viruses is a  of salt water contained?

Viruses are the most prevalent creatures in the water, despite their seeming insignificance. One milliliter of coastal water that has been gathered from the ocean's surface contains up to 10 million.

In oxygen and hydrogen—which make up the water molecule—abound in large quantities. A typical salt that includes both sodium and chlorine is called sodium chloride. Many of the dissolved substances found in the ocean come from the crust of the Earth.

Through the process of photosynthesis, which involves the use of sunlight, nutrients, carbon dioxide, and water, phyto plankton produce oxygen and food for other organisms. the planet's seas, which cover 71% of it.

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The scientist who is famous for his work on natural selection is ___________.

Answers

Answer:

Charles Darwin

Explanation:

hope it helps :p

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2. A wave in which the disturbance is perpendicular to the direction the wave
travels is called a longitudinal wave.
True or False

Answers

Answer:

False

Explanation:

How does the friction affect the total time a pendulum is in motion? And what could cause this friction in the real world?

Answers

Answer:

Without friction, the equation of motion for a pendulum of length L is,

md2θdt2+mgsin(θ)L=0.

Or for small oscillations, (i.e., sin(θ)≈θ),

md2θdt2+mgθL=0.

Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to this differential equation is,

θ(t)=θ0cos(gL−−√t).

Frictional force adds an additional damping term into the equation of motion,

md2θdt2+λdθdt+mgθL=0,

where λ is a coefficient of kinetic friction.

Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to the damped differential equation is,

θ(t)=θ0e−12λmtcos((gL−λ24m2−−−−−−−−√)t).

(Note: If you would like to consider closed form solutions for large angles, I would recommend consulting the mathematics section. The solutions to that problem are called elliptic integrals of the first kind.)

Friction decreases the total time that a pendulum is in motion.

If we consider a pendulum in motion, in accordance with Newton's law, the pendulum will continue moving unless it is acted upon by an external force.

In the case of the pendulum, the external force that acts on it is the air resistance or friction. As a result of this friction, the pendulum will eventually come to a stop.

In the real world, the surface of objects cause friction which causes moving objects to stop.

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Which of the following is an indicator of good water quality? (2 points)

Answers

Answer→ Physico-chemical indicators

Explanation ≈  They include dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus). They also include measures of toxicants such as insecticides, herbicides and metals.

Cuales son los seres vivos

Answers

Answer:

Living things move, respond to stimuli, reproduce and grow, respire, and are dependent on their environment. Most living things need food, water, light, temperatures within defined limits, and oxygen. ... Some non-living things, such as rocks and water, were never living.

Explanation:

Answer:

Propiedad o cualidad que distingue a los organismos vivos de los organismos muertos y la materia inanimada, que se manifiesta en funciones como el metabolismo, el crecimiento, la reproducción y la respuesta a estímulos o adaptación al medio que se origina en el interior del organismo.

What molecules are used to build the sugar in photosynthesis? PLEASE HELP

Carbon dioxide
none of these
oxygen
water

Answers

None of these i believe

Answer:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose

Explanation:

Hope this HELPS.

Which process creates food for plants in order to maintain homeostasis? Breathing O Cell division Cellular respiration Photosynthesis​

Answers

Answer:

Photosynthesis

Explanation:

Photosynthesis

Every year, 25 km 3 of sand is deposited on a beach by a nearby river, and 28 km 3 of sand is removed by wave action. Is the size of the beach increasing or decreasing? Explain your answer.

Answers

If 25 km3 of sand is deposited on a beach yearly and 28 km3 of sand is removed by wave action, the size of the beach would be decreasing, not increase.

First, there is a need to understand that the size of a beach is a function of the amount of sand deposited into it. The more the sand deposited, the more the beach would increase in size.

In this case, 25 km3 of sand is deposited annually but 28 km3 of sand is washed away by waves. The net amount of sand deposited can be calculated by subtracting the amount washed away by waves from the amount deposited. Thus

Net sand deposited = 25 - 28

                                     = -3 km3

Hence, the net amount of sand deposited annually is negative, meaning that the beach would decrease in size.

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What are the three most common generating forces of waves?

Answers

Answer:

,transverse waves,longitudinal waves,and surface waves

please help
a- protein
b- carbohydrate
c- liquid
d- nuclear acid

Answers

Answer:

i think lipids

Explanation:

Question 15(Multiple Choice Worth 3 points) (03.04 MC) Which of the following is most likely an impact of hurricanes? A. Acid rain in coastal areas B. Health problems due to smoke C. Wildfires in forests far away from sea D. Damage to property due to strong winds​

Answers

Answer:

Explanation:

Hurricanes do not effect acidity

Smoke is not caused by hurricanes

There is no known correlation between wildfires and hurricanes

Hurricanes are defined as rain and wind

Answer: Damage to property due to strong win

Explanation: hurricanes are known for having strong winds and destroying property due to strong winds

The cardiovascular system is

Answers

The cardiovascular system is sometimes called the blood-vascular, or simply the circulatory, system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.

The system that contains the heart and the blood vessels and moves blood throughout the body. This system helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products. The lymph system, which connects with the blood system, is often considered part of the circulatory system.

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What are some characteristics of coral reefs

What are some characteristics of estuaries

Answers

Answer:

Coral Reefs are filled with life with their extraordinary colors. As they supply other marine life with homes and hide out's , they are very fragile and delicate. Estuaries are wide and big, they can give homes to much more than the coral can but they can be dirtier than the coral reefs because it's a river unlike the coral reef's beautiful characteristics.

Explanation:

A bell rolling across the foor keeps moving until it is stopped by friction. This example demonsszes
the work prindide
Newton's Second Law of Motion
Newton's Third Law of Motion
Nentor's First Law of Motion

Answers

answer
Newton’s second law of motion

Plz help I need help

Answers

Answer:

provide support and structure to the cell

Answer:

option c

Explanation: PLS MARK BRAINLIEST

How does an atom become a positive ion?
O A. It loses an electron.
O B. It gains a neutron.
O C. It gains an electron.
D. It loses a neutron.

Answers

Answer:

The answer is C

Explanation:

Mark the brainly

Answer:

A. It loses an electron

Explanation:

An atom becomes a positive ion when it loses an electron (then there are more protons than electrons in the atom) when it is trying to reach stability. This is called a Cation. The opposite of this is an Anion, when an atom gains an electron to reach stability and becomes a negative ion (because the number of electrons are higher than the number of protons).

What do you think interphase is? What might the cell be doing in this phase? Think about the prefix "inter". Write your best definition - it's ok if you're not sure, just try your best!

Answers

Answer:

Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other "normal" cell functions. Interphase was formerly called the resting phase.

A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division

Interphase is the part of time which mostly the cell utilises for its functionality.

Some of them as

Replication of DNArespirationImport of nutrientsGrowing up

What macromolecules and biomolecules are critical for
cellular respiration to occur?

Answers

Answer:

Glucose

Explanation:

Glucose is the molecule that is needed for cellular respiration. The glucose monomer is also a building block for carbohydrate polymers such as starch, glycogen and cellulose. Proteins have a number of important functions. These include their roles in structures, transport, storage, hormonal proteins and enzymes.

I HoPe ThiS HeLpS!!!!

what do you mean by Dermatology?​

Answers

Answer:

its basically the treatment of skin contiditions like acne and other stuff

Explanation:

Answer:

Dermatology is the science that is concerned with the diagnosis and treatment of diseases of the skin, hair and nails.

Explanation:

How is population size and population density dofferent

Answers

Answer:   Population size means the total number of organismns in a given area like number of oak trees in a forest. Population density means number of organisms living per unit area like number of oak trees in say 1 sq km of the forest.

Explanation:  :)

Which of these statements describes how monomers combine and create macromolecules?
1 Nucleic acids combine to make starch.
2 Amino acids combine to make proteins.
3 Glucose molecules combine to make nucleic acids.
4 Proteins combine to make glucose.

Answers

Answer: Amino acids combine to make proteins.

Explanation:

Which of the following statements is NOT TRUE about photosynthesis and cellular respiration? (B.9B)

Question 19 options:

Both processes require energy


Both processes occur in the mitochondria


The chemical equations for the processes are opposite of each other.


Photosynthesis occurs in plants; cellular respiration occurs in plants and animals.

Answers

Answer:

Both processes require energy cuz respiration produces energy

Explanation:

The statement that is not true is that both processes occur in mitochondria as photosynthesis happens in chloroplasts. So the correct option is B.

What is cellular respiration in plants?

While oxygen is needed for plant respiration, carbon dioxide is also released during the process. Plants, unlike people and other animals, don't have any specific structures for the exchange of gases, but they do have stomata (found in leaves) and lenticels (found in stems) that play a part in it. Compared to people and animals, leaves, stems, and plant roots respire slowly.

Respiration is distinct from breathing. Breathing is a phase in respiration that is completed by both humans and animals. Plants breathe differently through a process called cellular respiration, which they engage in throughout their whole existence since the plant cell needs the energy to survive.

Plants produce glucose molecules during this process of cellular respiration by using photosynthesis to absorb solar energy and transform it into glucose. Several real-world experiments show that plants can breathe. To provide their cells the energy they need to function and stay alive, all plants breathe.

Therefore the correct option is B.

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Which is the most comprehensive ecological unit of the biosphere?
O ecosystem
O individual
community
biome

Answers

Answer:

D. Biome

Explanation:

The most comprehensive ecological unit of the biosphere is the biomes. Biomes are the largest ecological unit of life.

what is the function of mitochondria

A. They create the proteins that the cell needs to function

B. They Store energy from Sunlight to use in photosynthesis

C. They Convert energy from food into energy the cell can use

D. They produce nucleic acids that release energy for the cell​

Answers

Answer:

Mitochondria is the powerhouse of the cell!

Explanation:

A. That is the Endoplasmic reticulum

B.Cholorplasts

C. Food containing carbohydrates can be broken down to glucose and the mitochonrida has an important process knonw as the TCA cycle that converts the glucose to energy.

D. Not really true at all. DNA is not used for energy

Answer:

C

Explanation:

The other answers don't seem right, so I think this answer is probably the right one.

How does water pass through the cell membrane using passive transport

Answers

Answer:

Hope it helped you brainiest plz and thank you have a great day!!!

Explanation:

How does water pass through the cell membrane using passive transport?

It pass through the passive transport by the simple diffusion of water which can make it simple for a cell membrane to go through.

The collect data step of the scientific method comes before the hypothesis step. True or False?

Answers

Answer:

true after data collection you state your hypothesis

What did
Rudolph Diesel use as fuel?

Answers

he designed his engine to use a variety of fuels, from coal dust to vegetable oils. Or petrol.
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