Alkali metals have the properties of metals except they are less dense and:
More brittle
Softer
Less reactive
More valuable

Answers

Answer 1

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Alkali metals are the ones that belong to the 1st group of the periodic table, they are the most reactive metals having less ionization energy.

And one more thing is common between them, that is :

All alkali metals are soft metals, that can easily be cut through knife.

So, required choice is : B. Softer


Related Questions

What type of infection is transmitted by athlete’s foot?

Bacterial
Fungal
Parasitic
Viral

Answers

Answer:

Fungal

Explanation: took the test!! :)

Fungal, Because the athlete's foot is a fungus, and is transmitted to an athletes foot. Hope it helps

sophie rafain potentiate anti-cancer effects of doxorubicin and cisplatin and mitigate their toxic effects

Answers

Sulforaphane potentiate anti-cancer effects of doxorubicin and cisplatin and mitigate their toxic effects like heart problems and enhance their effectivity.

Doxorubicin and cisplatin are the drugs that are used to treat various types of cancer including breast cancer, lung cancer, bladder cancer, and ovarian cancer.

The are also associated with side-effects like heart problems, etc.

Sulforaphane is a sulphur rich substance found in green vegetables which is evident to have anti-cancer effects and helps in prevention and treatment of various types of cancer.

It causes the cancer cells to self destruct by the process of apoptosis.

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All of the following describe outcomes of urbanization except
O decreased soil pollution
O food chain disruption in a natural habitat
O increased wastewater from sewage drainage
O loss of plant biodiversity

Answers

Answer:

O decreased soil pollution

Explanation:

Urbanization does not lead to decreased soil pollution.

Pollution is the introduction of contaminants into the environments. As urbanization progresses and the population of people in a place increases, soil pollution increases.

Also, industrial expansion causes increased production of wastes. So, some of these wastes find their way into the environment of which the soil is a main component. There is an increased amount of soil pollution.

BRAINLIEST! oIF YOU DONT KNOW THE ANSWER DONT ANSWER AT ALL PLEASE! THIS NEEDS TO BE CORRECT OR I WILL LITERALLY HUNT YOU DOWN!!!

Answers

Answer:

dude how am I gonna answer

i can just place it for you dude.

Explanation:

explain why bacteria, in particular, are very useful organism in the process of genetic engineering​

Answers

Answer: The bacterial cells are being used in order to create genes and produce human insulin. The bacteria is used to make protein, which is a good thing. I hope this at least helped, and I believe this is why bacteria is useful organism in the process of genetic engineering.

What is the morula? And when does it develop?

Answers

Answer:

Morula: a solid ball of cells resulting from division of a fertilized ovum, and from which a blastula is formed.

When is it formed: In humans, the blastocyst is formed approximately five days after fertilization. This stage is preceded by the morula. The morula is a solid ball of about 16 undifferentiated, spherical cells.

tbh i don't really know when it's formed, but i looked it up and that's what it gave me. i hope it helped :)

Sound travels faster at higher temperatures

true false

Answers

Answer:

True

Explanation:

Temperature is another condition that affects the speed of sound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy and can vibrate faster and allow sound waves to travel more quickly.

Therefore, sound travels faster at higher temperatures and slower at lower temperatures.

the chemical formula for water is

Answers

Answer: The chemical formula for water is H2O!

Answer:

H2O

Explanation:

H2O

How do enzymes support life functions of the cell and the body

Answers

Explanation:

Enzymes help speed up chemical reactions in the human body

The cell of the blood running though your blood cells

which of the following is a function of the nucleus.
stores sugar
packages proteins
stores dna
builds proteins.

Answers

Stores sugar maybe or builds proteins

Answer:

Stores DNA.

Explanation:

The nucleus is the control center of the cell.

What are the similarities and differences between the two karyotypes?

Answers

Answer:

The typical human karyotypes contain 22 pairs of autosomal chromosomes and one pair of sex chromosomes (allosomes). The most common karyotypes for females contain two X chromosomes and are denoted 46,XX; males usually have both an X and a Y chromosome denoted 46,XY.

Explanation:

Make a claim about which organism(s) use carbon dioxide and which organisms) produced carbon dioxide. How did your test conditions affect the cycling of matter between plants and animals?
Evidence: Describe specific observations from your experiment to support your claim.
Reasoning: Did your observations support your claim? Describe, in detail, the connections between the evidence you gave and the claim you are making

Answers

Answer:

an organism is like a plant

The diagram shown represents a cell that will undergo mitosis. Which diagrams below best illustrate the nuclei of the daughter cells that result from a normal mitotic cell division of the parent cell shown? ​

Answers

Diagram A best illustrates the nuclei of the daughter cells that result from a normal mitotic cell division.

Mitosis is a type of cell division by which a parental cell divides to produce two genetically identical daughter cells.

In this case, the parental cell has three homo-logous pairs of chromosomes, thereby both daughter cells will also have three pairs of homo-logous chromosomes-

Somatic (body) cells reproduce by mitosis, while germinal cells reproduce by meiosis.

In conclusion, diagram A best illustrates the nuclei of the daughter cells that result from a normal mitotic cell division.

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Serotonin and Dopamine are 2 of the many neurotransmitters that are released when a synapse occurs.

A) true
B) False

Answers

Answer:

it is true

Explanation:

help!!!! i’ll give brainlest

Answers

Answer:

Lipids

Explanation:

Answer:

Lipids

Explanation:

Which of the following statements describes the structure of the plasma membrane?
a It is a lipid bilayer with the hydrophobic area pointing inward, and the hydrophilic area facing outward.
b Protein molecules make up the membrane, which makes it a strong structure.
c The plasma membrane is made mainly from carbohydrates that give the cell energy.
d It is made primarily of cholesterol that allows the cells to communicate with others.

Answers

Answer:

A. It is a lipid bilayer with the hydrophobic area pointing inward, and the hydrophilic area facing outward.

Explanation:

The plasma membrane (also known as the cell membrane) is a membrane that separates the cell's interior from the environment that surrounds it, protecting it. It consists of lipids, proteins, and carbohydrates.

Its main component are phospholipids that create a bilayer. Phospholipids consist of two hydrophobic tails and a hydrophilic head and are arranged so that the tails face inward and the heads outwards.  

This is why option A is the correct one.

You can see an image of the cell membrane's structure to help you visualize this below:

A population of ducks lives in an area that floods many times each year. Some of the ducks are better at finding food on dry land, while other ducks are better at finding food in wet, muddy areas. Eventually, the land around the lake permanently changes from dry soil to wet, marshy mud.

How will this change to the land most likely affect the duck population?

The population will remain stable because the ducks will not be affected by this kind of change.
The population will eventually balance out so that there are equal numbers of both types of ducks.
The population will evolve so that most ducks survive no matter how they find food.
The population will evolve so that most ducks are better at finding food in wet, muddy areas.

Answers

Answer:

D. A duck flies to another pond.

The above sentence is an example of emigration. Emigration refers to moving from one area to another for a long or permanent period. In this instance, a duck is leaving the pond it originally resided in (along a population other ducks) in order to reside in another pond. Therefore, it can be said that the duck "emigrated".

Explanation:

The answer is C

heheh

brainlest please

I need help please ​

Answers

Answer:

75 percent, 25 percent

Explanation:

What is a fixed allele?
O A. An allele that mutates with each generation
B. An allele that is found on many genes
C. An allele present in all members of a population
ОО
D. An allele that formed by adaptive radiation

Answers

Answer:

C. An allele present in all members of a population

Explanation:

Just took the quiz

A fixed allele is an allele that is present in all members of a population and has a frequency of 100%. Therefore, option (C) is correct.

What is an allele?

An allele is a variant form of a gene that arises through mutation and is located on a specific location on a chromosome, known as a locus. Genes code for specific traits or characteristics, such as eye color or blood type, and alleles determine the variations of these traits.

For example, the gene that determines eye color has several different alleles, including blue, green, and brown, which produce different variations of the trait.

Alleles can be dominant, meaning that they are always expressed in the phenotype of an organism, or recessive, meaning that they are only expressed when paired with another recessive allele. The combination of alleles that an individual inherits from their parents determines their unique genotype and phenotype.

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a) Which country looks like it is experiencing exponential growth?
b) Which country looks like it has reached its carrying capacity?
c) Because it has reached its carrying capacity, describe the relationship between
its birth rates and death rates.
d) Describe what is happening to Europe's population size in terms of birth rates
and death rates.
e) Which country or countries could be experiencing:
emigration:
Explain your answer.
.
-immigration:
Explain your answer.

Answers

India has a sharp rising trend and a quickly growing population, so it appears to be growing exponentially. It seems that Japan's carrying capacity has been achieved.

How do population growth and carrying capacity relate to one another?

Growing populations may be impacted by increased density in a given area. The greatest number of a species that an ecosystem can sustain is referred to as the carrying capacity of a region. Carrying capacity is based on the amount of resources available (food, habitat, water).

What are some examples of exponential population growth?

The term for this quick trend of population rise is exponential expansion. The best illustration of exponential development is found in bacteria. Via prokaryotic fission, prokaryotes, such as bacteria, divide.

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What must occur for protein translation to begin?

Answers

Translation starts at the three-base codon for the amino acid methionine in almost every known instance. The sequence of this codon is AUG. Both protein and RNA components can be found in the two subunits that make up proteins. The smaller ribosomal subunit's responsibility is to identify the AUG codon, which will serve as the beginning of translation (called the initiation codon). Finding the proper AUG is not an easy task, even though always starting at AUG helps alleviate the reading frame problem. When there are many AUG codons in an mRNA, the small ribosomal subunit must identify the proper one in order to produce the desired protein.

What is the final step of the cell cycle, directly following mitosis?

Anaphase
Cytokinesis
Interphase
Metaphase

Answers

Answer:

Cytokinesis

hope it help u :)

p16(ink4a) and senescence- associated β- galactosidase can be induced in macrophages as part of a reversible response to physiological stimuli.

Answers

p16 (ink 4a) and senescence-associated with Beta-galactosidase are introduced by macrophages.

What are p16 (ink4a) cells?

p16 cells are low molecular weight proteins bound by cyclin-dependent kinase. It is a protein that cell slows cell division. Cellular senescence suppresses cancer by preventing and proliferation of cells.

p16 and Inka 4 cells encoded by cyclin-dependent cells. It is also induced as aging which induces cellular senescence in response to stress.

p16 is a member of ink4a cells. It is a cyclin-dependent kinase inhibitor that plays a critical role in cell cycle regulation. It is expressed in both the nucleus and cytoplasm. p16 is a common biomarker for aging.

Therefore, p16 (ink 4a) and senescence-associated with Beta-galactosidase are introduced by macrophages.

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There is a large number of mitochondria in cardiac muscle cells because cardiac muscles need the mitochondria to:
1)work harder and longer.
2)maintain their shape.
3)maintain their color.
4)be attached to the ribs.

Answers

Answer:

to work harder and longer

Answer:

a. work harder and longer.

Explanation:

Which characteristic of sound makes it possible for bats to fly in the dark without hitting any objects?

Answers

Answer: echo location

Explanation:

how would you determine the hardness of a mineral

Answers

Mohs Hardness Scale

Explanation:

A mineral's hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.

What is the name of this leaf​

Answers

Answer:

A beam leaf

Explanation:

the study of chemical reactions, such as growth, reproduction and respiration, that occur within a living organism is called:

Answers

Answer: Chemistry

Explanation:

Please answer it’s due at 4!!!!!!!!??

Answers

Answer:

sexual reproduction

Explanation:

Try not to say the time, because we are not the same time zone.

we are different countries;) lol

It is sexual reproduction

A root cell may continue to absorb minerals even though the concentration of the minerals is greater inside the cell than in the soil. This absorption is accomplished mainly by —.

Answers

Answer:

Root hair cells

Explanation:

If the external environment of a living cell has a greater concentration of salt than the cytoplasm within the cell, the cell will tend to.

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