The batteries in pacemakers do not last forever and eventually need to be
recharged or replaced. What types of features would you need to consider when
designing a better battery for a pacemaker?

Answers

Answer 1

Answer:

hey can i priviet  message you

Explanation: you sound really smart and cute


Related Questions

Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Answers

Answer:

Binding of   ACh (acetylcholine)    to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Explanation:

It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is  ACh (acetylcholine) .

PLZ HURRY

Use the information from the article to answer the question.

Meteors

Which statements apply to meteors?

Meteors are bits of material falling through Earth's atmosphere.
Meteor showers are associated with asteroids.
Meteors create a streak of light.
The largest meteor found has a mass of 54,000 kg.
Meteor showers occur in the autumn and winter.

Answers

Answer:

Meteors are bits of material falling through Earth's atmosphere

Meteors create a streak of light

While meteors are associated w asteroids, meteor showers are more associated with comets

Meteor showers can occur when ever but there are annual showers that will occur ea yr

Answer:

1.Meteors are bits of material falling through Earth's atmosphere.

3.Meteors create a streak of light.

Explanation:

TRUST ME

How would you demonstrate that all cells come from preexisting cells

Answers

Answer: The generally accepted parts of modern cell theory include: ... All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms. The activity of an organism depends on the total activity of independent cells.

Explanation:

To demonstrate that all cells come from pre-existing cells, you should: Observe a bacterium performing binary fission to form clones of itself.

A cell can be defined as the basic functional, structural and smallest unit of life which is found in all living organisms.

According to cell theory, the following statements are true about cells;

All living organisms comprises small structural units called cells.A cell is the fundamental (basic), functional unit of life.Every living organism is made up of one or more cells: unicellular or multicellular.All cells are produced from existing (other) cells i.e pre-existing cells produce new ones through a process called cell division.

Binary fission is an asexual reproduction wherein the body of a prokaryotic organism such as bacterium, is divided into two (2) new identical bodies.

In order to demonstrate that all cells come from pre-existing cells, you should observe a bacterium performing binary fission (dividing) to form clones of itself.

In conclusion, the chromosome (pre-existing cell) of a bacterium containing deoxyribonucleic acid (DNA) and associated proteins replicates and then divides in half to form clones of itself (identical daughter cells).

Read more: https://brainly.com/question/14133091

PLEASE HELP I NEED THIS QUESTION ASAP :((

Cancer cells are body cells that do not function properly, leading to abnormal growth. Which process does not function normally in cancer cells?
1. Osmosis
2. Cell cycle
3. Photosynthesis
4. Cellular Respiration

Answers

Answer:

cellular corrert me if I am wrong

Explanation:

have a nice day baby

Pls help i dont understand :( will give Brainliest + 25 points!!

Answers

Answer:

competition

Explanation:

because one die and the other lives

animal cells have structures that perform specific functions in the cell. Mitochondria are oranelles that float within the cell. Because they produce most of the cell’s energy, mitochondria are nicknamed the “powerhouse of the cell”.

which of the following types of cells would have the greatest number of mitochondria?

skin cell

blood cell

muscle cell

fingernail cell

Answers

Answer:

skin cell because the skin is considered the largest part of the cell tissue based on order.

6. What develops when cells undergo metastasis? O cleavage furrows O metaphase plates sister chromatids O malignant tumors​

Answers

Answer: Malignant tumors

if you want mark brainlest.

If a woman has both alleles in her body cells, what will her eggs contain?

Answers

The woman will probably produce eggs which carry the allele for straight hairline and eggs with the allele for widow's peak hairline. There is a 50% chance that an egg will carry either allele.

If a woman has both alleles in her body cells, then her eggs will contain only one of the alleles. This is because during the formation of eggs, a process called meiosis occurs, which randomly separates and distributes the alleles to the daughter cells. Therefore, each egg will contain one of the two alleles that the woman carries.

What is allele ?

An allele is a variant form of a gene that is responsible for the expression of a particular trait or characteristic of an organism.

If a woman has both alleles in her body cells, it means that she is heterozygous for that particular gene. This means that she has two different versions (alleles) of the gene, one inherited from each parent.

During the process of meiosis, which produces eggs, the two alleles will segregate, meaning that each egg will receive only one allele.

The allele that ends up in each egg is random and depends on the particular orientation of chromosomes during meiosis.

So, the woman's eggs will each contain one of the two alleles she carries, and there is a 50% chance that each egg will contain either allele.

Learn more about allele at:

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What is the “self”? When we say “myself” or “yourself” what are we referring to?

Answers

Answer:

when you say self you are to the body, so when you say myself you are basically saying my body, my awereness.  And when you say yourself  it means their body.

Explanation:

Answer:

yourself is said to another person and you say yourself mean you and my self also means you but not used the same way.

Explanation:

hope this helps.

Glad to help

Someone please help me on this one thanks

Answers

Answer:

25 degrees

Explanation:

if you look at the highest point and trace down, it goes to almost 25, so 25 results in the highest rate

Answer:

D

Explanation:

That is where the highest point is

What mRNA sequence will best match the section of DNA shown below?

G – A – T – C – C – T
C – T – A – G – G – C
C – U – A – G – G – A
T – C – G – A – A – G

Answers

Answer:

C-U-A-G-G-A

Explanation:

took the quiz this question right with this answer

The mRNA sequence will best match the section of DNA shown below is  C-U-A-G-G-A. Thus, option C is correct.

What is the use of reverse transcriptase?

Reverse transcriptase enzyme has been generally used by the retrovirus for their genome replication. This enzyme has been discovered by the Howard tenim.

Reverse transcriptase enzyme generates the complementary DNA from the mRNA template by the process of reverse transcription. The presence of RNase H, RNA-dependent DNA polymerase and  DNA-dependent DNA polymerase activity enable the enzyme to convert the mRNA into DNA.

The position of the mRNA is to carry protein facts from the DNA in a cell's nucleus to the cellular's cytoplasm (watery interior), where the protein-making machinery reads the mRNA sequence and translates every three-base codon into its corresponding amino acid in a growing protein chain.

Therefore, The mRNA sequence will best match the section of DNA shown below is  C-U-A-G-G-A. Thus, option C is correct.

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Include captive breeding, laws and treaties, and habitat preservation

Answers

These activities include habitat destruction, poaching, pollution, and the introduction of exotic species. Three successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation. The number of different species in an area.

Which describes the particle or particles that are in the nucleus of an
atom? *
1. proton and electron

2.electron only

3.electron and neutron

4.neutron and proton

Answers

4. neutrons and protons are in the nucleus

    Nevermind! I don't know if you can delete your answer or not but I saw that mine was wrong. Sorry!

Choose all the answers that apply.

The speed of evaporation _____.

decreases as temperature decreases
increases as temperature increases
increases as surface area increases
decreases as surface area decreases

Answers

Answer:

increases as the temperature increases

Explanation:

this this happens because when water gets hot it separates from his own molecules creating less friction from the water allowing it to evaporate faster as heat increases

Answer:

increases as surface area increases

Explanation:

Astronauts on a spaceship in outer space notice their instruments detect energy from the Sun. Which of the following provides evidence that the Sun’s energy is moving through outer space?
A. Molecular collisions of visible light and infrared radiation
B. Electromagnetic radiation in the form of radio waves
C. Electromagnetic radiation in the form of matter
D. Molecular collisions of gas atoms

Answers

I believe the answer is B. Electromagnetic radiation in the form of radio waves. (Please Mark brainliest if correct )

The statement that provides evidence that the Sun’s energy is moving through outer space is electromagnetic radiation in the form of radio waves.

What do you mean by Radio waves?

Radio waves may be defined as electromagnetic waves enclosing a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz. These waves are used in radio, television, and satellite communications.

The Sun's energy consists of UV radiations but these radiations are not consumed by radio waves, resulting in the consumption of electromagnetic radiation on the Earth's surface.

Therefore, the statement that provides evidence that the Sun’s energy is moving through outer space is electromagnetic radiation in the form of radio waves.

To learn more about the electromagnetic radiation, refer to the link:

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What happens when weathering and erosion work together?

Answers

Search Results
Featured snippet from the web
is dissolved, worn away or broken down into smaller and smaller pieces. Once the rock has been weakened and broken up by weathering it is ready for erosion. ... Erosion happens when rocks and sediments are picked up and moved to another place by ice, water, wind or gravity.

planting selectmaterial in low quality? please answer my question​

Answers

Answer:

Whats your question

Explanation:

???

- a diagram of a food chain in the Everglades
- a plastic replica of the human digestive system
- a mathematical equation for finding the speed of an object

Would Be A Example Of...

model

hypothesis

observation

experiment

Answers

Model it literally says a plastic replica

I need the anwser soon!!Which two statements describe what happens to energy during cellular
respiration?
O A Chemical energy is transferred to molecules of ATP and used to
carry out fe processes.
B. Some thermal energy is transformed into chemical energy-
C. Some chemical energy is transformed into thermal energy
D. Light energy is transferred to molecules of ATP and used to carry
out te processes

Answers

Answer:

the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Explanation:

SOMETHING I DONT UNDERSTAND! My sis told me she was on her perio d but then I told her there was this thing called subject and predicate and how she isnt supposed to have a period at the end of her statement because it wouldnt make any sense... and ya, it didnt go well cause' she put on a tantrum.
But the weird thing is that Google said this "Tantrums are most common between the ages of one and four, then decrease when children start school." SO HOW COME I DIDN"T HABE A TANTRUM!! life makes no sense

Answers

Answer:

yep life tends to not make sense

i feel you gurl i also have a older sister

Explanation:

PLS HELP!!!!
What process forms stalactites and stalagmites?

Answers

Answer:

As the redeposited minerals build up after countless water drops, a stalactite is formed. If the water that drops to the floor of the cave still has some dissolved calcite in it, it can deposit more dissolved calcite there, forming a stalagmite.

As the redeposited minerals build up after countless water drops, a stalactite is formed. If the water that drops to the floor of the cave still has some dissolved calcite in it, it can deposit more dissolved calcite there, forming a stalagmite. Speleothems form at varying rates as calcite crystals build up.

Which compound forms when carbon dioxide diffuses and reacts with seawater?

A. Hydroxide ions
B. Carbonate
C. Bicarbonate
D. Carbonic acid

Answers

Answer:

It's D

Explanation:

When CO2 reacts with water first carbonic acid is produced. then this carbonic acid will transform to H+ and HCO3-.

BUT BECAUSE FIRST CARBONUC ACID IS PRODUCED SO CARBONIC ACID IS CORRECT.

hope you understand.

I need help with this pleas

Answers

Answer:

To maintain homeostasis within the cell

Explanation:

The function of the cell membrane is to maintain homeostasis (stable environment) within the cell.

The answer is to maintain homeostasis in the cell.

what type of tide has the highest amplitude

Answers

spring tides
The most extreme tidal range occurs during spring tides, when the gravitational forces of both the Moon and Sun are aligned (syzygy), reinforcing each other in the same direction (new moon) or in opposite directions (full moon).

There are four mechanisms that can cause changes in the frequencies of genes in populations: mutation, migration, genetic drift, and natural selection. All four are mechanisms of evolutionary change. What is genetic drift?
A) In a population, it is the changes in allelic frequencies of a gene that are due to chance.
B) A random error/change in the DNA sequence. These may be inherited or occur in cells during the lifetime of the organism
C) Also known as gene flow. It is any movement of individuals and/or the genetic material they carry, from one population to another.
D) There is variation in any population differential reproduction occurs and over time a more advantageous trait exists in the population.​

Answers

Answer: D

Explanation: i did it on usa test prep

Answer:D

Explanation:

Enzymes can be immobilised and then used in bioprocessing.

a) What is meant by immobilisation?
b) Name a substance that is used to immobilise enzymes.
c) Give one application of a named immobilised enzyme. In your answer, refer to substrate, enzyme and product.

Answers

Answer:

1. Immobilisation is to make immobile or immovable; fix in place. to prevent the use, activity, or movement of: The hurricane immobilized the airlines. to deprive of the capacity for mobilization: The troops were immobilized by the enemy.

2.An immobilized enzyme is, therefore, attached to an inert, organic, or inorganic or insoluble material, such as calcium alginate or silica. Furthermore, the attachment of an enzyme to a solid support can increase its resistance to various environmental changes such as pH or temperature

what usally accompanies a cold spell in minosota

Answers

Answer: the polar jet stream is moving south

Explanation:

Imagine that a biological anthropologist 10,000 years in the future is examining our fossil remains. The anthropologist notices that humans have broad incisors and molars with rounded cusps. How do you think the anthropologist would interpret these traits---what diet would these traits indicate

Answers

Answer:

They were frugivores

Explanation:

Frugivores are animals that mainly eat raw fruits, vegetables, roots, seeds, shoots, etc. Frugivores need to eat diverse fruits and succulent fruit-like vegetables to fulfill their nutritional requirements, although they can supplement this diet with flowers, nectar, small insects, etc. Among their adaptations for fruit consumption, frugivore teeth are clearly distinct, having broad incisors to peel tough fruit rinds. Moreover, these animals generally have long small intestines to digest the fruit.

Which organelle that plays a central role in the transport of new molecules from inside to outside the cell?

Answers

Answer:

The Golgi apparatus plays a central role in molecular transport after biosynthesis.

Explanation:

Transcription occurs in the nucleus during protein synthesis, followed by translation inside ribosomes. Then, new molecules join the endoplasmic reticulum to be folded and modified. In the Golgi, they are tagged and separated into lysosomes for export outside the cell.

 The Golgi system comprises of several regions known as cisternae; they act as independent microenvironments where products requiring their own unique conditions are converted into new, stable biomolecules.

The force that pulls falling objects toward earth is called

Answers

Answer:

The answer is gravity: an invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. Albert Einstein described gravity as a curve in space that wraps around an object—such as a star or a planet.

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