A . Choose the correct option.
1. Vaccine for smallpox is discovered by
a) Louis Pasteur
b) Alexander Fleming
c) Edward Jenner
d) John Mendal


2. Mushroom belongs to
a) Algae
b) Virus
c) Fungi
d) None of these

3. Malaria is caused by
a) Protozoa
b) Virus
c) Algae
d) Bacteria

4. Microorganisms are
a) Unicellular
b) Multi-cellular
c) Both
d) None of these

5. Penicillium is a
a) Algae
b) Fungus
c) Bacteria
d) Yeast

6. Rhizobium bacteria
a) Help in digestion
b) Help in nitrogen fixation
c) Cause diseases
d) All of the above


7. In order to take precautionary steps to control dengue, we must take measures to stop the breeding of
a) Aedes mosquito
b) Fleas
c) Fire ants
d) Anopheles mosquito

8. The bacterium present in curd is
a) Aspergillus
b) Lactobacillus
c) Penicillin
d) Vibrio cholera

9. While baking cakes, yeast reproduces rapidly and produces ___ gas.
a) Hydrogen
b) Oxygen
c) Carbon dioxide
d) Nitrogen

Which among the following statements is not associated with food preservation?

a) Prevention of decay or spoilage

b) Decreased shelf life

c) Air-tight sealing

d) Storage for future use​

Answers

Answer 1

Answer:

2. fungi

4. none of these

5. bacteria

9.carbon dioxide

10. decreased shelf life

Explanation:

mushroom makes spores which only fungi make

food preservation implies making it last longer

if it was hydrogen or nitrogen the food would explode.

also I am sorry I

do not know all of these.


Related Questions

Under the section heading "Darwin Develops His Theory", identify 3 things that Darwin
determined are required for evolution to occur. (Look at the example of the giraffe's
evolution under section "Applying Darwin's and Wallace's Theory" for help)

Answers

Answer:

heading "Darwin Develops His Theory", identify 3 things that Darwin

determined are required for evolution to occur.

is water losing through transpiration harmful or benefical for plant

Answers

Answer:

Beneficial. Read below

Explanation:

Water naturally does evaporate from the leaves. When it does, it makes a sort of suction in the 'pipes' of the plant. Think of it like when you drink from a cup with a straw. You take juice out from the straw by sucking it but that makes the juice still in the cup go up to replace that lost juice. This is how plants absorb water from the roots. If transpiration didn't happen, plants wouldn't be able to absorb water apart from osmosis but that would be too slow.

effect of overexploitation of natural resources​

Answers

Answer:

exhaustion

Explanation:

particularly by excessive forestry,fishing and hunting

H.M. maintained ______ memory as he was able to perform better each time he did the mirror-tracing task.

A) nondeclarative
B) declarative
C) priming
D) conditioning
E) episodic

Answers

B ) declarative memory

which dental material would you say is the most versatile and widely used today and why?

Answers

One of the most adaptable restorative materials in dentistry is dental amalgam. It accounts for over 75% of all restorative materials used by dentists.

What is amalgam?

Dental amalgam is a mixture of liquid mercury and metal alloys used to treat cavities caused by tooth decay in dentistry. [1] Mercury (50%) is typically found in low-copper amalgam, along with silver (22–32%), tin (14%), zinc (8%), and other trace metals.

Because of the constant expansion and contraction of amalgam fillings, they can sometimes shatter the tooth. Leakage is also less likely with composite fillings. A leaking filling indicates there is a small breach between the filling and your tooth, which allows dirt and saliva to enter and cause decay.

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Which forms as a result of compressional stress?
anticline and syncline
normal fault
strike-slip fault
fault-block mountain

Answers

Anticline and syncline forms as a result of compressional stress. Thus, the correct option is A.

What is anticline ?

Folds known as anticlines occur when formerly horizontal strata have been folded upward and the two limbs deviate from the surface.

When rocks deform in a ductile way, they may bend or fold, and the resulting structures are known as folds, rather than shattering to produce faults or joints. Folds are caused by compressional or shear pressures operating over a long period of time. Such folds originate from rocks that we often consider brittle behaving ductilely when the strain rate is low and/or the temperature is high.

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Answer: A

Explanation: E 2022

What is the cause of lightning?

A. The different elevations of a cloud and the ground

B. Airflow between a cloud and the ground

C. Varying air pressure underneath a cloud

D. Different charges on the ground and the bottom of a cloud

Answers

Answer:

The different elevations of a cloud and the ground

Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions, both in the atmosphere or with one on the ground, temporarily neutralize themselves, causing the instantaneous release of an average of one gigajoule of energy

During which phase of meiosis do spindle fibers move the sister chromatids to the center of the cells?
interphase
anaphase II
prophase I
metaphase II

Answers

Answer:

Metaphase II

Explanation:

During metaphase, the spindle fibers move the chromatids to the center (creates what is known as metaphase plate) to that they can be separated.

Hope this helps :)

What does the term temperature control refer to

1-the oven temperature recommended in a receipe
2- maintenance proper room temperature inside the dining area
3-the temperature required for maintaining food safety
4-the temperature control dial in the freezer

Answers

Temperature control refers to the temperature required for maintaining food safety (option '3')

what is temperature?

Temperature can be defined as a measure of how hot or cold something is; strictly, a measure of the average kinetic energy of the particles in an object, which is also a type of energy that is involved with motion.

What is food safety?

Food safety refers to routines that are involved in the preparation, handling and storage of food meant to foodborne diseases and injuries. it can also means the prevention of food contamination prior that will be  released to the consumer.

What is importance of food safety?

Food safety is important as it helps to protect consumer from the risk of food borne illnesses. It is essential to prevent consumers from risks of health –related conditions such as allergy and even death.

What are some of the food safety rules:

keep clean, separate raw and cooked, cook thoroughly, keep food at safe temperatures, and use safe water and raw materials.

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Helppp match the definitions :)

Answers

Answer:

1. Amino acid

7. RNA

5. Nucleic acid

3. DNA

6. Protein

2. Catalyst    

8. Substrate

Explanation:

1. AMINO ACIDS are the basic building block of proteins; they contain a carboxyl group (-COOH) and an amino group (-NH 2) in their structure. 2. A CATALYST is any substance that accelerates a chemical reaction without being used up in the reaction. They do this by lowering the activation energy of the reaction. 3. Deoxyribose nucleic acid (DNA) is a complex molecule containing the genetic code. It carries all the genetic information of living organisms. 4. AN ENZYME is a protein molecule that is specialized to speed up a specific chemical reaction in biological systems. It is referred to as a biological catalyst because it speeds up a chemical reaction in living systems. 5. NUCLEIC ACID is a sequence of sugars, phosphates, and nitrogenous organic bases. A nucleic acid (DNA and RNA) is a polymer of nucleotides, which are composed of the three molecules mentioned above. A sequence of nucleotides forms a NUCLEIC ACID. 6. PROTEIN is a large, complex organic molecule consisting of a large number of amino acids linked together by peptide bonds. The amino acid building blocks are linked together in a condensation reaction and catalyzed by Peptidyl transferase enzyme. 7. Ribonucleic acid (RNA) is a type of nucleic acid that participates in the synthesis of proteins. RNA is of three types viz: mRNA, rRNA and tRNA. They all play a role in the process of protein synthesis. 8. A SUBSTRATE is a compound that is involved in a chemical reaction and is chemically changed by the reaction. The substrate usually forms part of the reactant that yields the product.

(see attached)

Which of the following is most likely to happen if oxygen is not able to enter a cell?

The cell will not be able to produce energy

The cell will not be able to get rid of waste

The cell will not be replaced when damaged

The cell will not be able to split into daughter cells

Answers

The cell will not be able to produce energy

Answer:

I think its "Cells will not be able to produce energy"

The final products of meiosis are O A. muscle cells B. reproductive cells O c. homologous cells O D. skin cells

Answers

Answer:

B. Reproductive cells

Explanation:

Meiosis is a reduction cell division that is observed in germ cells or reproductive cells.

An invasive species has been introduced to a pond, using up many resources and resulting in the decline of several pond species.The same invasive species is introduced into the ocean. What is the most likely impact on ocean biodiversity?

Answers

The most likely impact on ocean biodiversity is very little because the ocean is large and has high biodiversity.

What is an invasive species?

An invasive species is a species that colonized another environment generally due to human activities.

In this case, it is expected that ocean biodiversity doesn't not suffer changes due to the removal of the invasive species (it is not adapted).

In conclusion, the most likely impact on ocean biodiversity is very little because the ocean is large and has high biodiversity.

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When a baby is born four weeks before the end of the third trimester, it is most likely that the baby will.

A. be unable to grow toenails

B. be able to survive in the environment

C. lack fully developed eyes

D. have some missing organs

Answers

Answer:

B: be able to survive in the environment

Explanation:

he is a premature so he can survive under good care

Term Definition
7. Independent variable a. The number of unpopped popcorn kernels
8. Controlled variable b. The brand of popcorn
9. Responding variable c. The time the popcorn is cooked

Answers

7: C
8: B
9: A

7 the independent variable is almost always time
8 the controlled variable is what you choose to be affected
9 the responding variable is the variable affected by the independent variable, for this example it is time heated and the number of unpoped kernels

The terms with respect to their definitions are matched below:

Independent variable: The time the popcorn is cooked. Controlled variable:  The brand of popcorn. Responding variable: The number of unpopped popcorn kernels.

What is an Independent variable?

An independent variable may be defined as a variable that stands isolated and isn't altered by the other variables you are trying to measure in your experiments.

A controlled variable may be defined as a variable that remains unchanged during the course of whole experiments.

A responding variable may be defined as a variable that responds according to the effect of controlled and independent variables.

Therefore, it is well described above.

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Select the correct answer from each drop-down menu.
Both molecules and compounds are made up of
orm
B. Two or more atoms joined together by shared electrons
8. Substances made from two or more different elements are
Reset
Next

Answers

Answer:

We know that when two  or more than two atoms join together they form an element.

When two or more than two elements join together, they form a compound.

When two or more atoms of an element join together then a molecule is formed.

When two types of atoms or elements  join together then a compound is formed.

Hence, the complete statement would be :

Explanation:

We know that when two  or more than two atoms join together they form an element.

When two or more than two elements join together, they form a compound.

When two or more atoms of an element join together then a molecule is formed.

When two types of atoms or elements  join together then a compound is formed.

Hence, the complete statement would be :

Both molecules and compound area made up of atoms . Two or more atoms joined together by shared electrons form element.Substance made from two or more than two different elements are compounds.

Organisms inherit specific traits and characteristics from their parents. Albinism is an inherited disorder that occurs when an organism is unable to produce or distribute melanin. Melanin is a substance in the body that helps determine skin color, hair color, and eye color.

An albino alligator.

Which is the basic unit of heredity that carries the trait of albinism from parent to offspring?
base pairs
genes
proteins

Answers

GENES are the fundamental unit of heredity that transmit albinism from one generation to the next. Thus, the correct option is A.

What is DNA?

Deoxyribonucleic acid is a polymer made of two polynucleotide chains that coil around one another to form a double helix and which contains the genetic material necessary for all known creatures, including many viruses, to develop, function, grow, and reproduce.

Because they contain unique sets of instructions to encode certain proteins, which are passed down across generations, genes are regarded as the fundamental functional and structural components of heredity (i.e., they are inherited).

When a gene is expressed, certain DNA fragments (i.e., genes) are used as templates to produce messenger RNAs (mRNAs), which are complementary RNA sequences.

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The basic unit of heredity that carries the trait of albinism from parent to offspring is GENES. Thus, option "B" is correct.

What are genes?

Genes are considered the basic functional and structural units of heredity because they contain specific sets of instructions to encode specific proteins, which pass across generations (i.e., they are inherited).

During gene expression, specific fragments of DNA (i.e., genes) are used as templates to create specific complementary RNA sequences called messenger RNAs (mRNAs) by a process called transcription.

Subsequently, these mRNAs are used to synthesize proteins by a process called translation.

The proteins arrange in the cell to produce specific phenotypes, i.e., specific observable features or traits.

In conclusion, the basic unit of heredity that carries the trait of albinism from parent to offspring is GENES.

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Develop a mind map representing the narrative of the historical development of technology and the impact of IKS throughout the history of humanity.​

Answers

Indigenous Information System (IKS) is the body of knowledge that communities have accumulated over many generations as a result of their interactions with the environment.

Indigenous Knowledge System (IKS): What is it?

The technological, economic, philosophical, educational, and governing systems are all included in the indigenous knowledge system.

Prior to the development of the contemporary scientific knowledge system, indigenous societies established their own knowledge, which is included in indigenous knowledge systems (IKS).

Acupuncture from China is an illustration of IKS. Through the preservation and wise use of biodiversity, it may significantly advance sustainable development.

There is a definite need to preserve these systems, acknowledge their worth, and stop their destruction in order to strengthen indigenous knowledge practices and cultures.

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help meee,A study was carried out on the emission of N2O in a sewage treatment plant (ETE) in the metropolitan region of Rio de Janeiro.
of January. During the study period, this ETE received sewage from 470,000 inhabitants. One particularity observed is that in addition to receiving domestic sewage, this station received, during a certain period of the day,the material leached from a sanitary landfill, responsible for causing an increase in the load of organic matter in the ETE in study. Continuous measurements of dissolved oxygen concentration and N2O emission were carried out at this station for 3
hours, in the period prior to the entry of the material leached from the landfill and in the period immediately after the entry of this material.

1-Why, soon after the material from the landfill, the concentration of dissolved oxygen decreased;

2-Why is there a significant increase in the emission of N2O soon after the entry of the leached material from the landfill? What bacterial processes can contribute to the increase in the emission of this observed gas
in this experiment?

Answers

The emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.

What is dissolved oxygen?

The term dissolved oxygen refers to the amount of oxygen that is present in  a water body. Now, we know that the addition of organic matter into water requires oxygen to break it own thus the dissolved oxygen content will go down in response to the added organic load.

The process that leads to the emission of N2O from the landfill site is called denitrification and it is caused by the action of denitrifying bacteria.

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Which organisms have the fewest similarities? Explain why these organisms still qualify as living things despite sharing few characteristics.


Vertebrates

invertebrate

plant

Answers

Plants are the organisms which have the fewest similarities and is denoted as option C.

What are Plants?

These are eukaryotes which perform photosynthesis and grow in the soil and on water.

It has few features such as leaves, roots etc and can perform activities such as respiration which is common in living things.

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With the development of air flight and mass transit, humans are able to move very rapidly around the world.
Which of the following is a possible consequence of increased human travel?
Choose 1 answer:

Answers

Explanation:

human are able to move very rapidly around the world because of good atmosphere if there is more powerful population

Answer: CORRECT (SELECTED)

Exotic species are introduced to new areas where they compete with native species.

Explanation:

Introduced, exotic species can outcompete native species and alter the biodiversity in that area.

What is a convection current

Answers

Answer:

Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air, or molten rock. The heat transfer function of convection currents drives the earth's ocean currents, atmospheric weather, and geology.

Explanation:

When is your breathing likely to speed up?

A. When your heart cells need more carbon dioxide

B. When your white blood cells increase

C. When your blood cells have too
much oxygen

D. When your cells need more energy

Answers

Your breathing is likely to speed up when your cells need more energy. Why? Well, faster breathing is likely to occur when your cells need more energy because doing things that force your muscles to work harder cause sweat glands often (which originates from the endocrine system), and to recuperate energy, your breathing rate increases so that more energy is circulated into your body.

Your final answer: The answer is D.

which of the following is an enzyme required by the process of rephosphory,to create ATP? A) AD Pase B)AT Pase C)Polymerase D)AT synthase ?

Answers

ATPase is the enzyme which is required to create ATP and is denoted as option B.

What is ATPase?

This type of enzyme is found in the mitochondrion and catalyzes the formation of ATP which provides energy to cells.

The ATP which is referred to as adenosine triphosphate is formed from the molecules known as ADP and inorganic phosphate which are present in the body cells. This ensures that the daily energy needs of the body are met.

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Arrange the level of cell organization from the simplest to the most complex, with 1 being the simplest and 5 being the most complex. 1. 1 organism level 2. 2 system level 3. 3 tissue level 4. 4 organ level 5. 5 cellular level

Answers

Answer:

1. Cellular level

2. Tissue level

3. Organ level

4. System level

5. Organism level

Explanation:

What is the function of the labeled structures?

A:

B:

C:

deliveres information to the next cell
carries information away from the body cell
receivces information

Answers

Answer:

its d come on now

Explanation:

A.The functions of dendrites are to transfer the received information to the soma of the neuron through the nervous systems.

B. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells.

C.transmission of impulses from one neuron to another across synapses with the help of neurotransmitters

State the 4 effect of soil acidity

Answers

The four effects of soil acidity are:

Formation of low solubility compounds.Greater retention by soil colloids.Conversion of soluble forms to ions that plants cannot absorb.Can inhibit or stimulate microbial activity.

Thus we can conclude that, soil acidity affects soil fertility, leaf nutrient uptake, and plant growth in a way that is confounding.

The usage of urea, elemental S fertilizer, and the development of legumes are the major contributors to soil acidification on agricultural land.

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A steady state is associated with which of the following terms
Static system
Open system
Closed system
Non-living system

Answers

Closed system …………….

Crops such as corn along
with plants such as
pansies, marigolds, and
cucumbers fall into which
of these categories of
angiosperms?

Answers

According to the research, pansies, marigolds, and cucumbers fall into dicots angiosperms category.

What are angiosperms?

They refer to vascular land plants that produce seeds, flowers, and fruits.

It is classified according to the number of leaves, when the seed germinates and two cotyledons are produced they are categorized as dicots.

Therefore, we can conclude that according to the research, pansies, marigolds, and cucumbers fall into dicots angiosperms category.

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Answer: Annual plants.

Explanation:

If one side of the DNA ladder contains the following bases, what would the complementary base pairs be for each?

Answers

Answer: The complimentary base pairs would be:

a. TATCTGAATCGG

b. CTGTAAGTGACC

c. CGTTATGAACCG

d. TATCGATGGCAT

e. CAGGGTACGTTC

Explanation:

A combines with T and vice versa.

Similarly G combines with C and vice versa.

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A gas mixture has a total pressure of 0.56 atm and consists of He and Ne. If the partial pressure of the He in the mixture os 0.27 atm. What is the partial pressure of the Ne in the mixture? y=2x^2-4x-3Solve quadratic questions X^2 + y^2 = 169 and y = -5 as a graph and where are the coordinates of intersection Which number line represents the solution set for the inequality 3(8 4x) < 6(x 5)?A number line from negative 5 to 5 in increments of 1. An open circle is at 3 and a bold line starts at 3 and is pointing to the left.A number line from negative 5 to 5 in increments of 1. An open circle is at 3 and a bold line starts at 3 and is pointing to the right.A number line from negative 5 to 5 in increments of 1. An open circle is at negative 3 and a bold line starts at negative 3 and is pointing to the left.A number line from negative 5 to 5 in increments of 1. An open circle is at negative 3 and a bold line starts at negative 3 and is pointing to the right. At a manor, what responsibility did the lord and the lady share? settling disputes educating children participating in mass collecting taxes HELP ITS ABOUT ANGLES :(((( why does ventricular tachycardia cause syncope Why was the mayflower compact important to the other New England colonies X -6,-3,0,3,6 y 0 1 2 3 4 which equation contains the coordinate parts given in the table Which organisms have the fewest similarities? Explain why these organisms still qualify as living things despite sharing few characteristics. Vertebratesinvertebrateplant In Chapter 3 of The Scarlet Letter, which best describes the magistracys main goal with respect to the punishment it delivers to Hester Prynne for her crime? The formula M = 5/8 K gives the approximate distance in miles as a function of kilometers. Use the inverse to express 25 miles in kilometers. Put the following equation of a line into slope-intercept form, simplifying all fractions. 4x+4y=-28 Select all the correct graphs.Choose the graphs that indicate equations with no solution. The exterior angles of a triangle are (2x+10),(3x+15)and (4x+20). What is the value of x and what is the largest interior angle of the triangle? Review the excerpt from The Code Book.Cryptanalysts realize that their real goal is to find away of cracking the RSA cipher, the cornerstone ofmodern encryption...Use the meaning of the underlined words above tounderstand the sentence.David's family was puzzled by the short and crypticnote he left on the table.What does cryptic mean?O clearOplainObelievableO mysterious Based on this passage of The Odyssey, one can conclude that the ancient Greeks greatly valued _____ Which words can you use as a clue to determine the meaning of the word "jocund"? how does edgar allan poe build suspense in"the raven"? [tex]\frac{1}{28} + \frac{1}{70} + \frac{1}{130} + \frac{1}{208} + \frac{1}{304} = ?[/tex]Evaluate this expression.