URGENT How does the structure of cardiac muscle help it perform its function?


Its spindle-shaped cells allow it to do smooth movements.


Its discs allow it to coordinate movement with other cells.


Its multinucleated cells allow it to trigger involuntary actions.

Answers

Answer 1

Answer:

b

Explanation:

edge

Answer 2

Hii!! I believe the correct answer is B. Its striations allow for big movements. (:


Related Questions

Which cellular structure produces proteins using coded instructions from DNA?
a) nucleus
b) chloroplast
c) mitochondrion
d)ribosome

Answers

the answer is d,ribosome

A mouse running away from the sound of an owl’s wings is an example of the mouse’s ability to

Answers

Answer:

Survive

Explanation:

There may be multiple answers, but the mouse is able to:

Reflexes

Sense

Movement

Instincts

Be aware

These factors can help escape the owl.

Answer:

Survive

Explanation:

Using the graph above, which answer choice correctly explains why there is a decrease in the rate of photosynthesis between the wavelengths of 500 to 600 nanometers (nm)?

A
Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.

B
Chlorophyll a begins to disintegrate at low wavelengths of light.

C
Chlorophyll a reflects wavelengths of light between 500 to 600 nm.

D
Chlorophyll a begins to disintegrate at high wavelengths of light.

Answers

Answer:

A

Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.

The physical appearance or the way a gene looks is known as its.... A. Gene B.Allele C.Phenotype D.genotype

Answers

C. phenotype. Phenotype is the physical appearance. I use PH and PH to help me remember.

What are two different ways cells communicate and explain how this form of communication is effective?

Answers

Answer:

There are many different ways that cells can connect to each other. The three main ways for cells to connect with each other are: gap junctions, tight junctions, and desmosomes.

Explanation:

Cell Signaling is an important facet of biological life. It allows cells to perceive and respond to the extracellular environment allowing development, growth, immunity, etc. Additionally, errors in cell signaling may result in cancer growth, diabetes.

The table below shows the characteristics of three components of the solar system labeled A, B, and C. Which choice identifies the components in the correct order?

A Comet, asteroid, sun
B Moon, planet, sun
C Moon, sun, planet
D Sun, planet, moon

Answers

Answer:

its B for sure.

Explanation:

Answer: B: moon, planet, and sun

Explanation:

hi i need your help guys! Using the periodic table, fill in the following table with the number of electrons in each energy level of the element given.
n = 1 level n = 2 level n = 3 level n = 4 level
Element (maximum 2) (maximum 8) (maximum 18) -----------
Carbon- ________ ________ ________ _______

Answers

i think its

carbon- 2 (there are two in the n=1 level) 4 (there are four in the n=2 level)

i might be wrong, but hope this helps :)

Electrons in atoms are arranged in energy levels. The electrons in the energy levels of carbon are;

n= 1 ------ 2 electrons

n = 2 ----- 4 electrons

n =3 -----  0 electrons

n = 4 ----- 0 electrons

Carbon has the electronic configuration; 1s2 2s2 2p2.

This means that there are only two electrons in the n-1 level and there are four electrons in the n=2 level.

This makes a total of six electrons in carbon as shown.

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What two symbols do all modern electronic devices use to transfer information?

Answers

Answer:

Up and Down Arrow

Explanation:

Enzymes work by
Help

Answers

Answer:

I think it will option C

hope it helps

I think it would be option B


Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily. Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without.

Spontaneous generation, the claim that living things can come from nonliving things, was an integral part of the theory of how life began and evolved for many years. In the 1600s, Francesco Redi was the first scientist to try to disprove spontaneous generation. Louis Pasteur, in 1859, finally disproved this claim with scientific evidence.

Answers

Answer:

The answer is Scientific thoeries are a culmination of many scientific investigations drawing together all current evidence.

Explanation:

In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?

Answers

It occurs in the first phase known as the Prophase. During this the chromosomes inside the cell’s nucleus condense to form tight structures.

The central nervous system (CNS) is composed of the spinal cord and brain. ALL BUT ONE of the choices below describe
function of the spinal cord.

A)
serves as a minor reflex center

B)
conducts motor information from the brain to various
effectors

C)
processes sensory inputs and initiates appropriate motor outputs

D)
conducts sensory information from the peripheral nervous system to the
brain

Answers

Answer:

c)

Explanation:

The central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.

What is the central nervous system?

The brain and spinal cord make up the central nervous system. The brain directs our thoughts, memories, movements, and emotions. Between the brain and the nerves that run throughout the body, the spinal cord relays messages.

It regulates cognition, personality, memory, emotion, speech, and the capacity to feel and move. The corpus callosum, a band of nerve fibers in the middle of the brain, connects the left and right hemispheres of the brain.

Thus, the central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.

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effect of sound pollution in points in 4 points​

Answers

It can cause headaches
It can cause Hearing loss
Sleep disturbances
Health problems eg :- high blood pressure

Which pair is correct?
a. G2 phase, preparation for mitosis
b. G1 phase, DNA replication
c. M phase, cell growth
d. S phase, cell division​

Answers

i think the answers A. G2 phase preparation for mitosis

A pair that is correct with respect to the cell cycle is the G2 phase, preparation for mitosis.

What do you mean by Cell cycle?

The Cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next.

In the G1 phase of the cell cycle, the cell grows in size and synthesizes mRNA as well as proteins which are required for DNA synthesis.

M-phase governs the nuclear division (Karyokinesis), and cytoplasm division ( cytokinesis).

S-phase is known to double the amount of genetic content within the cell.

Therefore, a pair that is correct with respect to the cell cycle is the G2 phase, preparation for mitosis.

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Please help me someone please

Answers

Answer:

Conduction

Explanation:

Heat moves from hot sand to the bottoms of your feet by conduction. Conduction is the transfer of heat between objects that touch each other.

i think it may be radiation because the heat is being given off the sand

Define biodiversity and the importance of diversity in ecosystems. How could humans harm an ecosystem's biodiversity?

Answers

Answer:

Biological diversity - or biodiversity - is the term given to the variety of life on Earth and the natural patterns it forms. The biodiversity is the fruit of billions of years of evolution, shaped by natural processes and, increasingly, by the influence of humans.

Explanation:

Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services. If no changes are made in the ways humans use resources on earth, there will continue to be a degradation of biodiversity until human lives can no longer be sustained. Humans affect biodiversity by their population numbers, use of land, and their lifestyles, causing damage to habitats for species.

A tissue is a group of cells which perform essentially the same function. true or false​

Answers

Prompt
What is a row?

Answer:

True

Explanation:

A tissue is a group of cells that does the same function.

What are the 2 types of eukaryotic cells? (select all that apply)
prokaryotic
animal
virus
plant

Answers

Answer:

Plant and animal

Explanation:

Please help!!!!!!!!
Define evolution in genetic terms.

Answers

Answer: The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Explanation:

Answer:

Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms. ... An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.

hope this helps.

how do mutations lead to genetic diversity?

Answers

The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

hope it helps.

explain how the geologist knows that the flow is older then the intrusion

Answers

Through dating a sample of that rock, we determined the extrusion to be 250 million years old. An intrusion extends from the bottom layer into the fourth oldest layer. Through dating a sample of that rock, we determined the intrusion to be 100 million years old. The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

What is the difference between a 'placental mammal' and a 'marsupial mammal?

Answers

Explanation:

A placental mammal is a mammal that give birth to fully developed live young . A marsupial mammal is a mammal that give birth to live young

In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?

Answers

Answer:

The S phase and prophase

Explanation:

Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.

The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.

Answers

Answer:

It's the DNA..........

The structure that the virus can use inside a host cell to produce new virus particles is the DNA.

Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.

Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).

It also possess a tail sheath through which it transfers it's DNA into host cell.

Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.

Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.

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The strangler fig is a vine that starts out as a seed in the tree canopy of the rain forest. It drops its roots down from the canopy to the forest floor. By sprouting in the rain-forest canopy, the strangler fig seedling is exposed to more-

Answers

The strangler fig is a vine that starts out as a seed in the tree canopy of the rain forest. It drops its roots down from the canopy to the forest floor. By sprouting in the rain-forest canopy, the strangler fig seedling is exposed to more-

The strangler fig plant shows an aggressive growth habit as an adaptation that allowed its growth. It drops to the forest floor and develops its seeds by exposure to sunlight. Thus, option A is correct.

What are adaptations?

Adaptations are a crucial part of the evolutionary process that allows the organism to fit and survive in altered environmental conditions. It has been due to the process of natural selection that gets inherited.

The aggressive growth habit of the strangler fig vine is to ensure its survival in the rainforest covered in canopies. The seed of the plants uses sunlight and nutrients to grow at a faster rate and hangs their roots on the first floor. The sunlight increases its rate of germination.

Therefore, option A. sunlight is used for germinating the fig seeds.

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The question is incomplete, but the most probable option were,

sunlightsoilnutrientsconsumers

How does Klinefelter syndrome caused by nondisjunction might have occurred??

Answers

Answer:

Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.

Explanation:

What would happen if the rate of evaporation reduces

Answers

Answer:

When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.

Answer:

if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.

What is DNA?


Byeeee, I'm leaving brainly, just giving points to those who need.​

Answers

Answer:

deoxyribose nucleic acid

Answer:

Thx, for the free points!!! : ) Why are you leaving brainly tho?

Explanation:

what are two limitations in diffusion experiment ??​

Answers

Answer:

Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.

Explanation:

once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. diffusion is limited by the surface area to volume ratio of the organism.

help ASAP! Please! Ill mark brainliest

Answers

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

b

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