The type of muscle fibers that are the largest, contain the most myofibrils and can generate the most powerful contractions are the:

Answers

Answer 1

Explanation:

fast glycolytic type (IIb) fibers


Related Questions

In the life cycle of zygomycota fungi, the filamentous, asexually reproducing forms visible to the human eye are called:

Answers

Answer:

hyphae

Explanation:

In the asexual phase of their life cycle, the hyphae produce sporangiospores. The group of fungi known as Zygomycota develop sporangia within a sac, which bursts to release the spores, germinating into a new hypha.

An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is glycolysis True False

Answers

Answer: True.

Explanation:

Glycolysis is a process that occurs in the cell cytoplasm, in which a 6-carbon glucose molecule is cleaved into two 3-carbon pyruvate molecules. Two molecules of ATP (Adenosine triphosphate, a molecule that acts as a source of energy to perform biological processes.) and two molecules of NADH are also obtained. It is a metabolic pathway responsible for oxidizing glucose in order to obtain energy for the cell. It consists of a series of consecutive enzymatic reactions, and when pyruvate is obtained, it continues to be used in other metabolic pathways in order to continue delivering energy to the organism. Glycolysis takes place both in the absence and presence of oxygen, so it is defined as an anaerobic process. Therefore, the final destination of the products obtained in glycolysis will depend on the conditions of the environment in which it is found, which will determine the metabolic pathway to be followed (i.e., whether oxygen is available or not). In the absence of oxygen, glucose will not be completely oxidized to carbon dioxide and water, generating fermentative products (lactic acid in animals and ethanol in yeast) producing only two net ATP molecules. In the presence of oxygen, the pyruvate obtained during glycolysis enters the Krebs cycle (to produce energy in usable form as ATP or GTP) and then undergoes oxidative phosphorylation (the process by which ATP is formed as a result of electron transfer from NADH or FADH2 to oxygen via a series of electron transporters) producing a net gain of between 36-38 ATP.

a penny is tossed and comes up heads 7 out of 10 times. Is the probability that it will be heads on the next toss 70%? Why or not?​

Answers

Answer:

I think it will because when you express 7/10 as a fraction it will result to 0.7, meaning the probability between 0 and 1 will be 0.7, therefore to express 0.7 as a fraction the answer will be 70%..

sorry if it's wrong

In a population of mole-rats, some have a little larger teeth and longer claws. If those particular mole-rats survive because they can dig quicker and the others are preyed on and do not survive to reproduce, what will eventually happen in subsequent generations?

Answers

Answer:

One increase in population and the other decrease.

Explanation:

The population of the rats having little larger teeth and longer claws increases as compared to those rats having small teeth and shorter claws because the rats can escape from their predators and survive in that environmental conditions. The population of rats  having small teeth and shorter claws extinct in the end due to no reproduction and preyed by the predators and dominated by the population of the rats having little larger teeth and longer claws due to their features.

do thyroid hormones influence heart rate from influencing the heart itself, or the attached to it?

Answers

Answer:

An excess of thyroid hormones increases cardiac contractility and resting heart rate (see box below). Cardiac output may increase by 50-300 per cent as a result of the combined effect of increases in resting heart rate, contractility, ejection fraction and blood volume, with a concomitant decrease in SVR.

In which type of synovial joint does one bone with a convex non-hemispherical surface fit into the concave depression of another

Answers

it is a bad question bc i dont know

In your own words, what is the definition for the word Cytokinesis?

Answers

Answer: division of a cell at the end of mitosis or meiosis

Explanation: cuz im smart

Answer:

PLZ MARK ME BRIANLIEST..

Explanation:

Cytokinesis:  During cell division, the process that partitions the cellular contents including the chromosomes, cytoplasm, and organelles into the two daughter cells. Cytokinesis occurs just after the segregation of the duplicated genome.

Explain how fluctuations in abiotic cycles can influence populations.

Answers

Answer:

Populations are influenced by fluctuations in any of the abiotic cycles. The fluctuation of seasonal cycles can cause populations to hibernate, migrate, or breed. Organisms hibernate as a result of seasonal fluctuations that cause them to have a limited resource supply.

Why is it possible for a FPR (formyl-peptide receptor) to detect a formyl peptide in the
absence of a bacterial infection?

Answers

Answer:

These receptors were originally identified by their ability to bind N-formyl peptides such as N-formylmethionine produced by the degradation of either bacterial or host cells. Hence formyl peptide receptors are involved in mediating immune cell response to infection.

Mark me as brainliest ❤️

How does a small bulb affect the sensitivity of a thermometer?

Answers

Answer:

By sunlight energy

Explanation:

The end of the thermometer is sensitive

ANALYZE How could scientists use data from tree rings to learn more about ecosystems
in the past? Use evidence from the tree ring in Figure 2a to support your answer.

Answers

Tree rings can be used to help analyze the age of the tree, but also to estimate the weather during a specific period of the life of the tree. Tree rings can show information such as precipitation and temperature.

What is true of mechanoreceptors?

A) They sense light
B) They sense heat/cold
C) They respond to pressure, movement, and tension.
D) They monitor pain
E) Other:

Answers

Answer:

C) They respond to pressure, movement, and tension.

Explanation:

Mechanoreceptors are a type of somatosensory receptors which relay extracellular stimulus to intracellular signal transduction through mechanically gated ion channels. The external stimuli are usually in the form of touch, pressure, stretching, sound waves, and motion.

c they respond to pressure and movement and tension

which type of plant was important in establishing the transition from water to land and the dominance of gametophyte

Answers

Answer: Nonvascular plants

Explanation:

Non-vascular plants are the plants that do not have a vascular system that has a xylem and phloem but rather, they have simpler tissues which have specialized functions that are used in the internal transport of water.

The type of plant that was important in establishing the transition from water to land and the dominance of gametophyte is the non vascular plant.

When you did the Homeostasis Exercise Lab yesterday, what was the dependent variable?

A) Heart rate
B) Breathing rate
C) Both Heart rate and Breathing rate
D) Time

Answers

Both heart rate and breathing rate

which organsism transform nitrogen to a form this useful to plants? a. bacteria b.animals c.fungi d.humans

Answers

Answer:

a. bacteria

Explanation:

There are nitrogen-fixing bacteria whose sole purpose is to transform nitrogen into a form which can be used by our friends called the plants.

Answer:

A. Bacteria

Explanation:

Nitrogen-fixing bacteria are capable of transforming it into fixed-nitrogen particles, that are usable by plants

All organisms need a place to live that provides? I

Answers

Answer:

food shelter water

Explanation:

food shelter water

Question in the picture

Answers

Answer:

A.

Explanation:

It's sugar or glucose and oxygen

Compare and contrast the cell structures / organelles found in plant and animal cells.

list 3 organelle/structures plant and animal cells have that are the same
list 2 organelles/structures plant and animal cells have that are different

Answers

Answer:

They both have a cell membrane.

they both have a nucleus

they both have the endoplasmic reticulum

Explanation:

One has a cell wall

one has a big vacuole and the other have many little vacuoles

Excessive sugar intake is related to development of dental caries because
A. oral bacteria produce acids that dissolve tooth enamel when they metabolize sugars.
B. sugar leaches calcium and phosphorus out of teeth.
C. salivary amylase dissolves tooth enamel during carbohydrate digestion.
D. sugars make the saliva more alkaline, causing damage to tooth enamel.

Answers

Answer:

The correct answer is A.

Explanation:

Dental caries is a chronic dynamic disease or process that occurs in the tooth structure in contact with microbial deposits. Among the factors that favor the development of dental caries is the excessive consumption of simple sugars. The sugars consumed with the diet constitute the substrate of the oral microflora and initiate the process of cariogenesis. Streptococcus can ferment sugars in the diet to produce primarily lactic acid as the end product of metabolism. This lowers the pH and demineralizes tooth enamel. Cariogenic microorganisms are characterized because they are capable of transporting carbohydrates in competition with other microorganisms, which could be present in the plaque; the rapid fermentation capacity of this substrate made up of sugars and starch and its acidic capacity - acid products - and acidic acid - capable of performing various functions under conditions of extreme acidity. The marked decrease in pH will contribute to the demineralization of the tooth, favoring the appearance of carious lesions in hard tissues: enamel, dentin and cementum.

Which of the following adaptations would you expect to find in an animal in the taiga biome, but not in the alpine? a. hibernation b. migration C. large lungs d. large paws​

Answers

You would expect to find C. Large Paws in the taiga biome, but not in the alpine.

Answer:

D- Large pawls

Explanation:

edg

MCQ ...help me........​It's a last question

Answers

It would be C !!!!!!!

You treat a sample of DNA with DNase and run the digested fragments out on an electrophoretic gel. You found mostly long fragments. What can you conclude about this sample of DNA

Answers

Answer:

the sample contains mostly heterochromatin  

Explanation:

Heterochromatin refers to a highly condensed state of DNA, whereas euchromatin is lightly packed. It is for that reason that heterochromatin is associated with a transcriptionally inactive state, whereas euchromatin regions are active for transcription. Heterochromatin regions resist DNases because these enzymes don't cut DNA randomly, but they show sequence preference. In consequence, highly repetitive DNA heterochromatin regions (e.g., centromeres, telomeres, etc) may exhibit resistance to DNA cleavage.

Describe these findings, and explaine their significants; epicanthal fold; pseudostrabismus; ophthalmia neonatorum; Brushfield spots.

Answers

-epicanthic fold: skin across the inner corner of the eye (canthus).
-pseudostrabismus: the appearance of strabismus because of epicanthic fold but is normal for a young child.
-Ophthalmia neonatorum, conjunctivitis of the newborn: purulent discharge caused by a chemical irritant or a bacterial or viral agent from the birth canal.
-brushfield spots: white specks around the edge of the iris.

The role played by the systems of the body in ensuring survival of farm animals in hot and dry climates

Answers

Answer:

Answer to the following question is as follows;

Explanation:

Domesticated animals have a natural instinct to seek out cover and seek refuge from the scorching heat. Their bodies, on the other hand, have inherent defensive systems to help them cope with heat and dryness. One of these is their covering or fur, which gives sun protection.

Animals living in hot, dry climates consume a lot of water, which is subsequently stored in their tissues to keep them from becoming dehydrated. Sweating is accomplished by certain animals by keeping their mouths open.


The following table describes some landforms.
Landform
Created By
Found in
Wind erosion Water or glacial erosion Depositions Deserts Coasts Mountains
Yes
No
Yes
Yes
No
No
| A
Yes
No
B
Yes
Yes
Yes
No
No
Yes
с
No
No
No
Yes
No
No
D
No
No
No
No
Which landform is most likely a coastline?
Landform A
Landform B
O Landform C
Landform D

Answers

Answer:

landform D is most likely a cost line

Help!!Quickk!!!!!!!!!!!!

Answers

Answer:

b: moon attraction to the sun

the basic structural and functional unit of the living organism is​

Answers

Answer:

cell

Explanation:

The cell is the fundamental unit of structure and function in living things. All organisms are made up of one or more cells. Cells arise from other cells through cellular division.

difference between clarias gariepinus and hetrobranchus bidorsalis?​

Answers

Answer:

The clarias gariepinus or african sharptooth catfish , belongs to the Clariidae family of airbreathing catfishes. They exist in freshwater lakes, rivers, and swamps, as well as man-made environments like oxidation ponds and even urban sewage systems, throughout Africa and the Middle East.

Hetrobranchus bidorsalist, he African catfish, sometimes known as the eel-like fatty fin catfish, is an airbreathing catfish found in Africa. It has a lot in common with the vundu catfish, which is well-known among anglers.

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[tex]\textbf{HAVE A GREAT DAY!!}[/tex]

write a report on storm around the world​

Answers

The U.S. central plains region -- nicknamed Tornado Alley -- suffers the highest frequency of tornadoes in the world [source: Tarbuck]. Many of these twisters leave death, injury and destruction in their wake, but one stands in a class by itself.

Sweeping out from southeastern Missouri on March 18, 1925, the Tri-State Tornado careened across the southern tip of Illinois before dissipating in lower Indiana. Remarkably, these three locales lie 219 miles (352 kilometers) apart, and the tornado traveled this distance in just three and a half hours [source: SEMP].
With up to 155-mph winds, Hurricane Iota smashed record books on Nov. 16 as the strongest hurricane ever recorded to make landfall in Nicaragua. Iota reached Category 5 strength before making landfall as a Category 4 storm near the town of Haulover, Nicaragua.

The onslaught of destructive winds and heavy rainfall was unfortunately familiar to a region that recently suffered another Category 4 landfalling storm – Hurricane Eta – just two weeks earlier. Eta was a Category 4 storm with 140-mph winds when it landed in Nicaragua on Nov. 3 before ripping a wide path of destruction through Honduras and Guatemala.

Heavy rainfall from these two storm systems brought widespread flooding to the region, triggered large and numerous landslides in Guatemala and Honduras, and was responsible for numerous casualties.

NASA’s Earth Applied Sciences Disasters Program supports disaster response and risk reduction efforts throughout the world — before, during, and after disasters strike – and is working to aid Central America with the impacts from these storms.

In the case of Eta and Iota, the Program is using imagery and data from Earth-observing satellites to provide scientific analysis to Guatemala’s National Coordinator for Disaster Reduction and is working with the Coordination Center for Disaster Prevention in Central America. The multi-agency collaboration is assisting local governments in Nicaragua, Honduras and Guatemala, El Salvador, Belize, Costa Rica, and Panama. The Program is also working with U.S. Southern Command to provide situational awareness for potential emergency humanitarian assistance.

Interactive map

Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The presence of these organelles tells you that the environment Group of answer choices is hypotonic to the protozoan. contains a higher concentration of solutes than the protozoan. is isotonic to the protozoan. is hypertonic to the protozoan.

Answers

Answer:

is hypertonic to the protozoan.

Explanation:

The presence of contractile vacuoles tells us that the environment  is hypertonic to the protozoan that contains a higher concentration of solutes in the outside environment than the protozoan. The water moves outside the cell if its concentration is higher inside the cell so due to diffusion and no need of extra water, the water removes by the contractile vacuole to the outside environment so we can say that the environment is is hypertonic to the protozoan.

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