alkali metals are listed in the first column of the periodic table. this tells you that

a they are highly reactive

b they have only one electron in their outer orbital shells.

c their nuclei contain only one neutron

d both a and b​

Answers

Answer 1

Answer:

B. they have only one electron in their outer orbital shells


Related Questions

Help it’s 9th grade biology

Answers

animals is the answer here you go, im sorry

transport that moves materials against the concentration gradient is said to be

Answers

Answer:

It is Active Transport.

I do believe it is Active Transport.

Prompt:
Please use complete sentences.

What factors contributed to the shift from hunting and gathering to agriculture?
This is a biotechnology question but there isn't a subject choice for it.

Answers

Answer:

One of the main factors was a lack of wild animals suitable for hunting and a lack of plants suitable for gathering.

Explanation:

This in turn was due to either climate change or to animal population declines because of unsustainable volumes of hunting and gathering

the only way to tell if the red blood cells are crenated is to

Answers

Answer:

is to go for medical check-up

Explanation:

it's through the medical checkup

you will know that it still crenated

The only way to tell if the red blood cells are crenated is to observe them under a microscope

What is crenation?

Crenation is the process of red blood cells becoming misshapen and breaking apart, and this can be seen through the examination of red blood cells under a microscope.

By observing the shape of the red blood cells, it can be determined if they are crenated or not. Additionally, other methods such as hemoglobin analysis or measuring the osmotic fragility of the red blood cells can also be used to determine if crenation has occurred.

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Чи може містити рослинна клітина елемент або речовину, яких немає в
навколишньому середовищі? наведіть приклади

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Answer:

the first great German expressionist film was

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Question 4
Newly synthesized proteins destined to be secreted from the cell are likely to be found in all of the following places EXCEPT:
The lumen of the ER
The lumen of the Golgi
The lumen of the lysosome
The lumen of the SER
Moving to the next question prevents changes to this answer.

Answers

Newly synthesized proteins destined to be secreted from the cell are likely to be found in all the options except the lysosome.

Both the endoplasmic reticulum and Golgi apparatus are involved in protein processing and transport.

However, the lysosome is an organelle responsible for digesting or degrading excreted biomolecules as well as dead organelles. The lysosome is spherical and most contain digestive enzymes capable of degrading biomolecules in its lumen. Thus, a protein destined to be secreted from the cell will most likely not be found in the lysosome, otherwise, the protease enzyme present in its lumen would degrade them.

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A student made a model of an onion skin cell she viewed
using a microscope. The scale is 500:1. The student's cell
model has a length of 15 cm.
How many centimeters is the real cell's length?
A. 7500 cm
B. 0.002 cm
C. 33 cm
D. 0.03 cm

Answers

If a student made a model of an onion skin cell using a microscopic magnification scale of 500:1 and the length of the modeled cell is 15 cm, the real cell's length would be 0.03 cm.

The scale is 500:1. This means that the dimension of the real cell without being magnified under the microscope would be 1/500.

Thus, if the length of the cell under the microscope is 15 cm. This length has been multiplied by 500. In order to get the real length, it must be divided by 500.

              15 x 1/500

                             = 0.03 cm

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Answer: 0.03cm

Explanation: i got it right on my test

Question 6
Which list best identifies the processes that move carbon through an ecosystem?
A
photosynthesis, respiration, consumption, decomposition, erosion, and burning
B
respiration, transpiration, weathering, consumption, burning, and sedimentation
Ос
respiration, transpiration, decomposition, weathering, sedimentation, and infiltration
D
photosynthesis, respiration, sedimentation, infiltration, erosion, and decomposition

Answers

Carbon cycles through the ecosystem via the processes of; photosynthesis, respiration, consumption, decomposition, erosion, and burning.

Carbon is one of the nutrients that cycles through the ecosystem. These chemical elements move through the various spheres of the ecosystem such as atmosphere, lithosphere and hydrosphere.

Carbon cycles through the ecosystem via the processes of; photosynthesis, respiration, consumption, decomposition, erosion, and burning.

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Match the function to the molecule.
Functions:
Provides immediate energy
Forms the cell membrane of all cells
Speeds up the chemical reactions by lowering the activation energy
Provides long-term energy
Stores genetic information
A sugar

Molecules:
Lipids
Nucleic acids
Phospholipids
Proteins
Glucose
Carbohydrates

Answers

Provides immediate energy ---> carbohydratesForms the cell membrane of all cells--->phospholipids Provides long-term energy--->lipids Stores genetic information---->nucleic acid A sugar ---->glucoseSpeeds up the chemical reactions by lowering the activation energy--->proteins(enzymes)

What is the largest corvid?

Answers

Answer:

the thick-billed raven its around 3.1 pounds and 26 in

Explanation:

When a bond forms between units of a macromolecule, a water molecule is
lost. What is this process called?

Answers

Answer:

dehydration synthesis

Explanation:

Answer:

Dehydration synthesis is the creation of larger molecules from smaller monomers where a water molecule is released.

Explanation:

In single celled organisms what are the materials primarily stored in?

Answers

Answer:

In single-celled organisms, materials are stored primarily in. ribosomes.

Mistletoe is a plant that lives on the branches of trees. The mistletoe plant sends its roots in through the bark of trees and takes away water and minerals that the tree needs.

Explanation:

how many heme groups are there in each hemoglobin molecule?

Answers

Answer:

4 heme groups

Explanation:

what is the structure that surrounds the cell and controls what enters and leaves the cell

What’s the correct answer?

-The plasma membrane
-The cytoplasm
-The nucleus
-DNA

Answers

Answer: The plasma membrane.

SSomoene help plssssssssssss

Answers

Answer:

That they are the building blocks of an organism

Explanation:

It's like bricks, bricks make walls, walls make houses, houses make money, and comfort for people.

Brainiest please?

Put the breaker next to your hands

a hive is an example of what type of skin eruption?

Answers

Answer:

Wheal

Explanation:

Answer:

you answer is Wheals skin

Explain in your own words the difference between a leading strand and a lagging strand.

Answers

Answer:

So basically the primary distinction between the leading and lagging strands is that the leading strand is the DNA strand that develops continuously during DNA replication, whereas the lagging strand is the DNA strand that grows in small pieces known as Okazaki fragments. A leading strand is one that is produced in the 5'-3' direction, whereas a lagging strand is one that is formed in the 3'-5' direction. The leading strand is constantly produced where the other is not.

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what is metabolism meaning

Answers

Explanation:

metabolism refers to the body's chemical reactions that produce energy needed for the body to function.

in which organisms do cellular respiration and photosynthesis occur?

Answers

Answer:

Terms in this set (61) In which organisms do cellular respiration and photosynthesis occur? Plants require specific inputs to carry out photosynthesis and cellular respiration.

Explanation:

in alternation of generations, what is the diploid stage of a plant that follows fertilization called?

Answers

Answer:

sporophyte

Explanation:

which molecule gets translated into a protein by the ribosome?

Answers

Answer:

Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis — the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.

Explanation:

Molecule gets translated into a protein by the ribosome within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.

What is RNA?

Full form of RNA has ribonucleic acid and it has a nucleic acid which has been found in almost all cells that are living and RNA has mostly similar to DNA but there is one difference between RNA and DNA and the difference is that RNA has single stranded but DNA is double stranded.

The RNA has backbone has made up of the phosphate group which has arranged in alternating form and the sugar known as ribose other than the deoxyribose  present in DNA. There are four bases found in RNA and these are adenine, uracil, guanine, and cytosine.

The main function of mRNA is it work as imedieter between protein and DNA which is utilised by ribosome for the process of direct synthesis of protein, and the function of tRNA is to carry the accurate amino acid to the proteins synthesis site which takes place in ribosome.

Therefore, Molecule gets translated into a protein by the ribosome within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis the stitching together of amino acids to make a protein molecule.

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Explain the importance of decomposers to a food web and their interaction with quaternary consumers.

Answers

Answer:

Decomposers recycle the nutrients in dead organisms allowing it to completely travel through the food web cycle, from producer, to consumer and back again

Explanation:

This recycling also applies to quaternary consumers, the predators that generally have no natural enemies, allowing the nutrients in their bodies to be recycled.

Answer:

Decomposers recycle the nutrients in dead organisms allowing it to completely travel through the food web cycle, from producer, to consumer and back again

Explanation:

Describe the activities of DNA and the three types of RNA.

Answers

Answer:

There are three types of RNA: mRNA, tRNA, and rRNA. mRNA is the intermediary between the nucleus, where the DNA lives, and the cytoplasm, where proteins are made. rRNA and tRNA are involved in protein synthesis. Additional RNAs are involved in gene regulation and mRNA degradation.

Explanation:

Which example best describes the term carrying capacity?
O A. The maximum prairie dog population size that an area can sustain
over time
O B. The maximum number of young prairie dogs that a population can
care for over time
O C. The amount of space available for prairie dogs in a given area
O D. The amount of food and water available for prairie dogs in a given
area

Answers

Answer:

A the maximum prairie dog population an area can hold over time

Explanation:

La retina refracta la imagen y el cerebro la interpreta y la voltea?

Answers

Answer: a

Explanation: just did it on edg

which body system is made up of the heart, veins, and arteries?

Answers

Answer:

The circulatory system

Explanation:

The heart, veins and arteries works together to service the cells of the body

That would be the circulatory system. The heart pumps nutrients and fresh oxygen through the arteries, and the veins take blood with less oxygen back to the heart. The arteries carries nutrients and oxygen to body tissues.

Where should a prep table be located

Answers

A flat spaced area made where no bugs could get to it and room temp temps between 33°F and 41°F in a kitchen with an ambient temp of 86°F

the two proteins directly involved in muscle contraction are broadly called

Answers

The two proteins directly involved in muscle contraction are MYOSIN AND ACTIN. The interaction between these proteins is responsible for muscle contraction.

The sarcomere is the basic unit of muscle cells (myofibrils) that mediate muscle contraction both in skeletal and cardiac muscle tissue.

During muscle contraction, myosin and actin proteins slide past each other, thereby leading to sarcomere shortening.

The myosin protein binds to actin filaments and thus myosin acts as a motor protein that drives filament sliding.

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most of the iron that is removed from degraded hemoglobin is:

Answers

Answer:

Most of the iron that is removed from degraded hemoglobin is: recycled to the red bone marrow.

Most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

What is Hemoglobin?

Hemoglobin is defined as an iron-containing oxygen-transporting metalloprotein present in the red blood cells of nearly all vertebrates as well as the tissues of some invertebrates that carries oxygen from the respiratory organs in the blood to the rest of the body.

The blood protein hemoglobin that helps carry oxygen throughout the body and carbon dioxide to your lungs. High hemoglobin levels can cause dizziness, fatigue, easy bruising, and other symptoms.

The iron which is present in hemoglobin which is removed is recycled from the red bone marrow.

Thus, most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

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What is a snake that eats a mouse an example of?
predation
competition
mutualism
parasitism

Answers

Answer:

Predation

Explanation:

A snake that eats a mouse an example of predation.

A snake that eats a mouse is an example of predation. Predation is an ecological interaction where one organism (the predator) kills and eats another organism (the prey). Hence option A is correct.

What is predation?

Predation is an ecological interaction between two organisms in which one organism (the predator) hunts, kills, and eats another organism (the prey). It is a form of consumption where the predator obtains nutrients and energy from the prey, while the prey is typically harmed or killed in the process.

In this case, the snake is the predator and the mouse is the prey. Predation is a natural and common interaction in many ecosystems, and it can have significant effects on population dynamics and community structure.

It can help regulate prey populations, prevent overgrazing, and promote species diversity.

Predators have evolved various adaptations to catch and kill their prey, while prey has evolved various defenses to avoid being eaten, such as camouflage, warning coloration, and physical or behavioral defenses.

Hence option A Predation is correct.

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