What are Purkinje fibers?
special valves that relay electrical impulses to
the ventricles, which cause contraction
special fibers that relay electrical impulses to
the atriums, which cause emptying
special valves that relay blood to the
ventricles, which cause contraction
special fibers that relay electrical impulses to
the ventricles, which cause contraction
DO NE

Answers

Answer 1

Answer: It's D aka Special fibers that relay electrical impulses to the ventricles, which cause contraction.

Explanation:


Related Questions

May someone help me with this please?

Answers

photosynthesis: CO2

i think so :)

A-Handpicking
B-Sieving
C-Using a Magnet
1. Fine flour and lumpy flour
2. Mixed nuts
3. Sand and gravel
4. Sand and palay
5. Scrap iron and nail​

Answers

[tex]\huge\mathfrak\pink{answer}[/tex]

1) Fine flour and lumpy flour - B) Sieving

2) Mixed nuts - A) Handpicking

3) Sand and gravel - B) Sieving

4) Sand and palay - B) Sieving

5) Scrap iron and nail - C) Using magnet

(mark me brainliest if you're satisfied with my answer :))

[tex]\large\mathfrak\pink{thank \: you}[/tex]

Sally, 9-year-old girl, just did an awesome backflip on her trampoline. Instead of landing in a similarly awesome manner, she miscalculated and landed on her neck. Sally stood up with pain in her neck and does not appear to be able to extend her left arm very well. An x-ray shows a fracture of her C6 vertebrae that is compressing down on her C7 vertebrae impacting the spinal nerve located between C6 and C7 vertebrae. Which spinal nerve did Sally likely injure

Answers

Answer:

The C7 spinal nerve

Explanation:

The C7 spinal nerve exits on each side through the intervertebral foramen between the C6 and C7 vertebrae. The C7 spinal nerve has both a sensory root which is composed of sensory fibers and a motor root. This nerve is required to control motor functions including shoulder movement (i.e., adduction, abduction and rotation). The C7 dermatome is a region of skin that receives sensory inputs from the C7 spinal nerve.

Which characteristic of life best describes the process of homeostasis?
responding to the environment
reproducing
growing and developing
using energy

Answer
A. responding to the environment

Answers

Responding to the environment.

Answer:

and using energy

Explanation:

the guy on ed told me


12. Identify the stage of mitosis shown here. Describe
the events that occur in this stage.
Spindle


JUST QUESTION 12 please

Answers

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase). ... Cytokinesis typically overlaps with anaphase and/or telophase.

The chromatids are arranged at the center, with a joined spindle at the metaphase of mitosis.

Mitosis is the type of cell division in which the parent cell divides into two daughter cells.

What are the phases of Mitosis?

The mitosis is divided into four phases, namely,

ProphaseMetaphaseAnaphaseTelophase

The arrangement of the duplicated chromatids at the center plate with the binding with spindle fiber is represented in the metaphase of the mitosis cycle.

Learn more about mitosis, here:

https://brainly.com/question/13536882

Which enzyme functions to prevent supercoiling of the DNA molecule during replication?
A)
Helicase
B)
Topoisomerase
C)
RNA polymerase
D)
DNA polymerase

Answers

Answer:

B

Explanation:

Photo synthesis is impossible at a depth of 1000 b/c ? A. It is too hot B. Only blue light penetrates this far C. No light penetrates this far D. It is too cold​

Answers

Answer:

B. Only blue light penetrates this far

Explanation:

An earthquake with a Richter magnitude of 5 releases ______ more energy than an earthquake with a Richter magnitude of 3.
a. 900
b. 27000
c. 30
d. 2

Answers

Answer:

b

Explanation:

An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?

small crystals
cooled quickly
produced from magma
formed at Earth’s surface

Answers

Answer:

C. produced from magma.

D. formed at Earth’s surface

Explanation:

Earth crust refers to the outermost layer or thin shell which makes up the earth such as sedimentary, metamorphic and igneous rocks.

The Earth crust is typically made up of two (2) main types;

1. Oceanic crust: this crust has a thickness ranging from 5 km to 10 km and comprises of denser rocks such as diabase, gabbro and basalt.

2. Continental crust: this crust has a thickness ranging from 30 km to 60 km and comprises of minerals such as quartz, silicate, feldspar, aluminum and less dense rocks such as granite

An igneous rock has a coarse texture and is dark in color. Also, an igneous rock can be accurately described as being produced from magma and formed at Earth’s surface.

Answer:

Produced from magma

Explanation:

I got it right on the test hope this helps

☺️

ASAP PLS HELP !!! Jfndndbrhdbdbr pls

Answers

100% because there is no dd making it not possible for them not to have dimples if dimples is dominant.

A seed contains
A) cotyledons
B) xylem
C) stoma
D) phloem

Answers

answer:

a) cotyledons

explanation

Offer a possible explanation why even identical twins are not exactly alike.

Answers

Answer:

Because identical twins are an example of sexual reproduction, which provides different looking offspring

Explanation:

Organisms that are birthed of asexual reproduction are always exactly identical

Resting a pot on top of a hot
stove causes the pot to become
hot. What method of heat
transfer is happening here?

Answers

Answer:

Conduction

....

.........,...............

What would the complementary strand of GTCCGTAACGTAT be?

Answers

Answer:

CAGGCATTGCATA

Explanation:

Given: GTCCGTAACGTAT

Under Chargaff's rule, Adentine is equal to Thymine, and Cytosine is equal to Guanine. (A=T, C=G)

What is homeostasis?

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{What is \underline{Homeostasis}?}[/tex]

[tex]\large\text{Homeostasis is the self-processing in the biotic structured which}\\\large\text{tended to perpetuate (maintain) rationally while it is modified}\\\large\text{its conditions that can be prototypical for surviving}[/tex]

[tex]\large\text{Homeostasis has.... }\\\bullet\large\text{ Controllable center(s)}\\\bullet\large\text{ Effectors}\\\bullet\large\text{Variables (aka Homeostasis)}\\\bullet\large\text{ Receptors}[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

[tex]\large\text{Here is what each of your features of homeostasis means}\downarrow[/tex]

The phase of mitosis that is characterized by the disappearance of the nuclear membrane is

Answers

Answer:

Prometaphase (late prophase)

Explanation:

Mitosis is the kind of cell division in which two genetically identical copies of a cell is formed from a cell. Mitosis comprises of stages which include prophase, metaphase, anaphase and telophase. Each phase is characterized by specific occurrences that all work together to achieve the main goal of forming two daughter cells.

According to this question, PROPHASE stage is the stage characterized by the condensation of chromatids into chromosomes, the disappearance of nucleolus and BREAKDOWN of NUCLEAR MEMBRANE.

What are the advantages and disadvantages of the serial dilution-agar plate procedure?​

Answers

Answer:

Advantages

- Serial dilution is used in microbiology to estimate the concentration or number of cells/organisms in a sample to obtain an incubated plate with an easily countable number of colonies.

- In biochemistry, serial dilution is used to obtain the desired concentration of reagents and chemicals from a higher concentration.

- In pharmaceutical laboratories, serial dilution is performed to receive the necessary concentration of chemicals and compounds as this method is more effective than individual dilutions.

- In homeopathy, homeopathic dilutions are used where a substance is diluted in distilled water or alcohol. It is believed than dilution increases the potency of the diluted substance by activating its vital energy.

Disadvantages

- An error might occur during the propagation of the sample, and the transfer inaccuracies lead to less accurate and less precise transfer. This results in the highest dilution to have the most inaccuracies and the least accuracy.

- Because serial dilution is performed in a stepwise manner, it requires a more extended period of time which limits the efficiency of the method.

- Serial dilution only allows the reduction of bacteria/cells but not the separation of bacteria/cells like in other techniques like flow cytometry.

- This technique also requires highly trained microbiologists and experts in aseptic techniques.

Cellular Respiration and Energy

Answers

Answer:

answers answers answers

Explanation:

1. carbohydrate

2.store energy

3.chemical energy

4. food

5. glucose

6. cellular respiration

7. ATP

7. Apply: Look carefully at the picture below and you will see an insect called a
katydid. Katydids evolved from grasshoppers through natural selection. Use
what you have learned to explain how this could have happened.

Answers

Answer: This description is an example of camouflage adaptations.

Explanation:

The grasshoppers are the insects which feed on plant parts and they are able to change their color with respect to their surrounding environment. For example, if they are living on the brown tree trunk they change their color to brown and on the green grass or green leaves they change to green to remain undetected by the predators. This way they are able to camouflage their predators this adaptation allows their survival in their environment with due course of natural selection. The phenotypic trait that is grasshopper is able to change its color increases the chances of survival of the grasshopper. Kaytids have evolved from grasshoppers means they have camouflage traits as that in parent grasshopper species. They have structure which blends with surrounding environment, that is they have wings that mimic that of pattern of leaf venation, also when they change the color to brown the shape of the body appears to be as that of stem. This structural adaptation help them to camouflage their predators.

PLEASE I BEG YOUUUU HELP

Answers

Answer:

C

Explanation:

Does someone knows this question​

Answers

The answer is b or a

Answer:

D. Viruses can have a lipid envelope derived from the host cell membrane. So they have the same phospholipids and glycoproteins (they also have specific viral proteins)

The total number of chromosomes in an organism is referred to as the
Will mark brainliest

Answers

Answer:

ploidy

Explanation:

Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.

discuss the characteristics of phylum mollusca​

Answers

Answer:

The body is soft and unsegmented. Body is divisible into three regions – head, a visceral mass, and ventral foot. Body is covered by a mantle and shell. They can be found in different habitats, both aquatic and terrestrial.

Which skull bone is part of the facial bones and contains teeth?

Answers

Answer:

The anterior skull consists of the facial bones and provides the bony support for the eyes and structures of the face. This view of the skull is dominated by the openings of the orbits and the nasal cavity. Also seen are the upper and lower jaws, with their respective teeth

The anterior skull. I learned it in school plus i searched it up to make sure.

B. Population Dynamics Symbiotic Relationships
Ticks
Ticks belong to a family called Acarina, which also contains mites. Ticks eat by taking blood from
other organisms such as wallabies, lizards, echidnas and occasionally humans. In humans this can
lead to symptoms such as itching, head aches and in extreme cases flu like symptoms, facial
paralysis, and meat allergy.
1. Identify the relationship a tick has with its host. Justify your answer [3]

Answers

Answer:

Parasitism

Explanation:

Parasitism is a form of relationship in which one of the organism is being harmed while the other benefits. The organism being harmed is usually called the HOST while the organism that benefits is called PARASITE. Parasites often inflict certain health-related conditions on their hosts.

According to this question describing the mode of feeding of ticks, they are said to eat by taking blood from other organisms such as wallabies, lizards, echidnas and occasionally humans, which are all HOSTS.

In human hosts, this relationship with ticks can lead to symptoms such as itching, head aches and in extreme cases flu like symptoms, facial paralysis, and meat allergy etc. From the description above, it is clear that TICK has a PARASITIC RELATIONSHIP with its host as it brings only harm to them and benefits itself.

Which resource is nonrenewable? A. Wind B. Trees C. Coal D. Soybeans

Answers

The Answer = C: Coal
C. coal, it’s a fossil that can not be produced again.

Check Check Match the function to the correct part of the cell. DNA controls the activities of the cell nucleus supports and protects the organelles in the cell cytoplasm contains instructions on how a cell functions​

Answers

Answer:

DNA- contains instructions on how a cell functions

Nucleus- controls the activity of the cell

Cytoplasm- supports and protects the organelles in the cell.

Explanation:

Hope it helps you. Please mark as the brainliest. Thanks.

Answer:The answers are right js did on edge Thanks !!!

Explanation:

Muscle tissues are made of specialized unitss called?

Answers

Answer:

Each skeletal muscle fiber consists of a bundle of myofibrils, which are bundles of protein filaments. The filaments are arranged in repeating units called sarcomeres, which are the basic functional units of skeletal muscles.

Explanation:

Answer:

skeletal muscle

Explanation:

Please Help!
Who would be best qualified to consult on a case requiring forensic entomology?

A. A person with a Master's Degree in Entomology and less than a year's experience in Forensic Entomology.

B. A person with a Doctor's Degree and Membership in a Professional Society of Forensic Entomology.

C. A person with a Bachelor's in Entomology, but no experience in Forensic Entomology.

D. A person with a Doctorial Degree in Entomology and a Certificate in Forensic Entomology.

Answers

D. A person with a Doctoral Degree in Entomology and a Certificate in Forensic Entomology.

They will know the most about forensic entomology compared to the rest of the options.

A person with a Doctorial Degree in Entomology and a Certificate in Forensic Entomology. Hence option D is correct.

What is Entomology ?

Entomology is defined as the investigation of insects and how they interact with people, the environment, and other living things. Entomology is employed extensively in a wide range of fields, including evolutionary biology and medical research, in addition to studying the anatomy and physiology of insects. It aids agricultural entomologists in their research on biodiversity as well as in the protection of priceless resources from insect pests.

Forensic entomology is defined as the study of arthropods, particularly insects, connected to criminal activity and other judicial issues. An essential tool in the examination of homicide, self harm, and other violent crimes is forensic entomology. When properly gathered and examined by skilled forensic investigators, insect evidence found on a victim's corpse can provide important information.

Thus, a person with a Doctorial Degree in Entomology and a Certificate in Forensic Entomology. Hence option D is correct.

To learn more about Entomology, refer to the link below:

https://brainly.com/question/2929449

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describe how you would test a sample of powdered milk to see if it contained protein ​

Answers

Answer:

How would you  contained protein ​

Explanation:

One would test a sample of powdered milk to see if it contained protein ​by using copper sulfate solution and  sodium hydroxide solution.

What is protein?

A structure composed of amino acids. The body need proteins to function properly. They serve as the building blocks for several bodily components, including the skin, hair, and enzymes, cytokines, and antibodies.

An essential component of a balanced diet is protein. Amino acids are the chemical "building blocks" that make up proteins.

Amino acids are used by your body to create hormones, enzymes, and to build and repair muscles and bones. They can be utilized as a source of energy as well.

The test can be done as:

To your meal solution, add a few drops of copper sulfate solution. A few drops of sodium hydroxide solution should be added. Protein is present in the food if the solution becomes purple.

Thus, using copper sulfate solution and sodium hydroxide test, one can determine the protein content in the sample.

For more details regarding protein, visit:

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