cardiovascular anatomy describe the operation of the heart and vessels. true\false​

Answers

Answer 1

Explanation:

true

I hope this helps u

//^

Answer 2

Answer:

susieiwiiuw7wuwiwiwiwususususu


Related Questions

HELP PLS +10 BRAINLY POINTS

Answers

First one is Endocrine
Second one is Circulatory
1st one will be endocrine because that system releasing hormones into the body for reaction . the 2nd one will be circulatory because it sends oxygen through blood and nutrients through it

All living things have DNA. What about DNA determines the type of organism it will become?
A) The arrangement of DNA
B) The size of a DNA molecule
C) DNA does not affect living things
D) No answer text provided.

Answers

the answer would be A. the arrangement of DnA
The answer to this question is A

Which factors can lead to a mass movement?

Answers

Answer:

Such factors include: weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope's susceptibility ..

Explanation:

Answer:

Explanation:

Weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope's susceptibility

Why is the burning of fossil fuels, which releases carbon dioxide into atmosphere, a concern to scientists

Answers

They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.

1. A brown mink crossed with a silver-blue mink produced all brown offspring. When these F1 were crossed among themselves, they produced forty-seven brown animals and fifteen silver-blue animals. What are the genotypes of the parentals and the F1s

Answers

Answer:

The correct answer is -

Parental - BB and bb

F1

Genotypes: 100% Bb  

F2

Genotypes: ¼ BB, ½ Bb, ¼ bb

Explanation:

It is given that a cross between a brown and a silver-blue mink produces all brown offspring and it is only possible if brown is dominant over silver blue in true breed cross, assume brown trait is represented by B and silver-blue is b then parents will be

BB and bb

   B    B

b  Bb   Bb

b  Bb   Bb

Cross between F1 individuals: Bb cross Bb

gametes : B, b and B, b

   B     b

B  BB   Bb

b   Bb    bb

the genotype of F2 : 1:2:1 = ¼ BB, ½ Bb, ¼ bb

PLS HELP THE DUE DATE IS TOMORROW AND I CHOOSE AN URBAN CITY

Answers

Answer:

1, 2, the last one

PLEASE ANSWER ASAP I AM BEING TIMED!!!
ONLY ANSWER IF UR 100%
EXPLAIN THIS IS A WRITTEN ANSWER

Briefly explain why fossil fuels are good sources of fuel. In other words, where does the energy come from?

Answers


Fuel economy improvements: save you money, reduce climate change, reduce oil dependence costs; and increase energy sustainability.

Please Help!!! Will give points to best answer Which is the complimentary mRNA strand that would be created during transcription for the following DNA sequence:

Answers

It should be the fourth answer starting with AUC

Hope this helps
Answer: AUG GUC AAG
*In RNA the T is changed to U in pairing

Which of the following statements is true concerning biodiversity?

Answers

Last one - Biodiversity is the diversity of species in an area, which makes an ecosystem better prepared for major changes

Explanation:

If one crop struggles to grow then there will be plenty of others to substitute it. If a prey animal is dying at a faster rate and harder to find, predators can have other prey options and so forth. Biodiversity makes it so ecosystems can get past change.

Answer:

a

Explanation:

What does the flagella do in a euglenoid?

Answers

Answer:

Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir.

Which statement correctly identifies the types of macromolecules that are described?

Answers

Answer:

macromolecules are the molecules that we can not see by the eye

Explanation:

What should I do more, that's all I know about macromolecules

3) Part of a process necessary for reproduction in complex organisms is represented below. Step C results in the production of A) four zygotes that will develop into embryos B) embryonic cells that could unite and develop into an organism C) four cells that will recombine to form two offspring D) gametes that could be involved in the formation of a zygote

Answers

Part of a process necessary for reproduction in complex organisms is explained below, and the correct options are gametes that could be involved in the formation of a zygote, which is in option D.

What is a zygote?

Reproduction in complex organisms involves a process called sexual reproduction, which involves the fusion of gametes from two parents, such as the male making the sperm and the female making the ovum, and then the zygote is formed. In the case of humans, this zygote develops into a baby after 9 months.

Hence, the correct options are gametes that could be involved in the formation of a zygote, which is in option D.

Learn more about the zygote here.

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The question is incomplete, the complete question is below

Part of a process necessary for reproduction in complex organisms is explained below and choose the correct option,

A) four zygotes that will develop into embryos

B) embryonic cells that could unite and develop into an organism

C) four cells that will recombine to form two offspring

D) gametes that could be involved in the formation of a zygote

PLEASE HELP- Which step in developing a
balanced ration involves
determining what feedstuffs are
available in your location?

Answers

Answer:

1

Explanation:

step 1 because it shows locations

(I really need this to boost my grade)

Label the permeable and impermeable rock layers

Answers

Answer: HI your question is incomplete but i will provide a general answer that can help you

answer : Permeable Rock layers allow the flow of fluid like substances through them, While Impermeable rock layers do not allow the flow of fluid like substance through them.

Explanation:

Permeable rocks are rocks containing pores through Fluid like substances can penetrate through in the rocks. examples of Permeable rocks are ; Sandstones and Chalk

While an Impermeable rock is a rock that does not allow the flow of fluid like substance through it due to the absence of pores in its rock layers . examples of such rock are ; Clay and marble  

Although some permeable rocks might exhibit low level of permeability as well but generally Rock sample with pores are classified as permeable rock layers.

Light penetrates the clear water of the open ocean more deeply than it does lake
water. Phytoplankton is found deeper in the open ocean than in freshwater lakes.
What does this observation best indicate?
A Phytoplankton provides nutrients to consumers in the ecosystem.
B Phytoplankton reduces the light available to organisms at lower depths.
C Phytoplankton populations are limited by their ability to photosynthesize.
D Phytoplankton population growth is limited by the presence of marine salts.

Answers

The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.

Hope this helps:)

The given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.

What do you mean by Ecosystem?

An ecosystem may be defined as a place or an area where organisms of different species are present together and interact with one another for their need.

Phytoplanktons belong to lower trophic levels in the aquatic ecosystem. The organisms of higher trophic levels depend on it for the need of energy.

Therefore, the given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.

To learn more about the Ecosystem, refer to the link;

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Trace how the brain responds to stimuli through the nerves and neurons.​

Answers

Answer:

The correct answer is -The brain and the spinal cord respond and sends a signal down a motor neuron to a specific sensory stimulus.

Explanation:

Sensory receptors sense the changes that take place in the environment that is called stimuli by sensory neurons that transmit the signal from the sensory receptors to the brain.

The brain and the spinal cord make the central nervous system. This coordinates a response to a specific stimulus and sends a signal down a motor neuron and send a signal to the effector by motor neurons.

Kudzu, a vine native to Asia, was introduced into the USA in 1876. Farmers in the South were encouraged to plant kudzu to reduce soil erosion. Once established in its new habitat kudzu can grow as fast as a foot a day!



Which of the following is likely NOT true about the impact of kudzu in the South?

a
Kudzu has the potential to overtake and replace native plants
b
Increase the biodiversity of the ecosystem in the South
c
Alter the nitrogen balance of the soil
d
Have long term impacts on the local organism populations

Answers

Answer:

hi what did you get for this one?

Explanation:

The statement which is not true about the impact of kudzu in the South is that it has long-term impacts on the local organism populations. Thus, the correct option for this question is D.

What is Habitat?

Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It is generally an area or place where all the basic demands of an organism are fulfilled like food, space, mating partner, resources, etc.

According to the context of this question, the farmers in the south were encouraged to plant kudzu to reduce soil erosion. This means that it has the ability to increase the biodiversity of the ecosystem in the South.

Apart from this, it also has the potential to overtake and replace native plants. It also alters the nitrogen balance of the soil. But it does not express long-term impacts on the local organism populations.

Therefore, the statement which is not true about the impact of kudzu in the South is that it has long-term impacts on the local organism populations. Thus, the correct option for this question is D.

To learn more about Habitat, refer to the link:

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Which of the methods of generating electricity shown below does NOT use alternative energy resources?​

Answers

Answer:

A.Please leave a 5-star rating and Thanks!

The Vocabulary of Nutrition for Children, Adolescents, and Older Adults
In order to understand nutrition-related problems that occur within different age groups, you must first be able to use the vocabulary. Review the sentences below and select the term that best completes the sentence.
Match the words in the left column to the appropriate blanks in the sentences on the right.
picky eating
peak bone mass
life expectancy
obesity
arthritis
bone mineral density (BMD)
food jag
congregate meal
food insecurity
epiphyseal plates
1. ---------------------- usually involves avoidance of new foods, while a---------------------------------- represents a preference for a certain limited number of foods at the exclusion of others.
2. Adolescent bone growth occurs along the -------------------------------------- .
3. In healthy individuals,--------------------------- increases through early adulthood.
4. Rates of ------------------------------------- have doubled in children in the past 30 years.
5. Many older adults experience ------------------------------------- due to factors like limited income, poor health, or impaired mobility.
6. For individuals born around 1900, the ------------------------------ was around 47 years.
7. Severe ---------------------------------------- can impact mobility, making it difficult to obtain and prepare meals.
8. A ------------------------------------------------- can provide nutritious food and socialization for older adults.

Answers

Answer:

1. Picky eating; food jag

2. epiphyseal plates

3. bone mineral density (BMD)

4. obesity

5. food insecurity

6. life expectancy

7. arthritis

8. congregate meal

Explanation:

Picky eating is a behavior in early childhood when they refuse to eat certain foods and only want the same foods, while food jag is when a child only eats a small group of foods, meal after meal. The epiphyseal plate is a specialized layer of hyaline cartilage where chondrocytes (i.e., the only cells found in healthy cartilage) proliferate and differentiate during longitudinal bone growth. Arthritis is an inflammation of the joints caused by different reasons (e.g., injury, genetic causes, infections, immune system dysfunction, etc), whose risk increases with age. Bone mineral density (also known as bone density), is the amount of mineral in bone tissues, being the best manner to measure bone health. Obesity can be defined as an excessive amount of body fat that presents a risk to health. Over the past 30 years, the prevalence of obesity has doubled in children and tripled in adolescents, representing a serious health problem (especially in developed countries). Moreover, food insecurity is a social condition of limited access to food for individuals in a household to live an active, healthy life, which can be used as a metric of how many people cannot afford food. Life expectancy is an estimation of the number of years a person can expect to live in a given country/region. Life expectancy around the world has increased for nearly 200 years especially due to medical progress and access to food. Finally, a congregate meal refers to a healthy meal provided to anyone age 60 or over that encourages older adults' social connections with other persons at the meal sites.

HEYYYY HOW ARE YOU

HOWS LIFE
HOWS SCHOOL

Answers

MY SCHOOL WORK IS DRAINING THE LIFE OUTTA ME

Answer:

Bad

Explanation:

School life is boring not fun at all

Red-green color blindness is a human X-linked recessive disorder. Jill has normal color vision, but her father is color blind. Jill marries Tom, who also has normal color vision. Jill and Tom have a daughter who has Turner syndrome and is color blind. a. How did the daughter inherit color blindness

Answers

Answer:

From her mother's (Jill's) father.

Explanation:

Which of the following statements explains how N-formylmethionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA. Select all that apply. Group of answer choices Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. There are more than one tRNA with the 5' CAU 3' anticodon. fMet is always incorporated at interior AUG sites and then deformylated after translation. The N-formyl group attached to methionine prevents fMet from entering interior positions in a polypeptide.

Answers

Answer:

Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. ( A ) There are more than one tRNA with the 5' CAU 3' anticodon. ( B ) The N-formyl group attached to methionine prevents fMet from entering  interior positions in a polypeptide. ( D )

Explanation:

The statements that explains how N--formyl methionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA are :

Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. ( A )

There are more than one tRNA with the 5' CAU 3' anticodon. ( B )

The N-formyl group attached to methionine prevents fMet from entering  interior positions in a polypeptide. ( D )

While statement C is wrong.

SOMEONE ANSWER QUICKLY PLEASE!

Answers

Answer:You would be looking for cancer and Leo

Explanation: these are the constellation for the months June, July and august

Four Reasons why having environmental personal mission statement may enhance the environment? ​

Answers

Answer:

here is you answer bro:

Personal mission statements are an important component of leadership and personal development. They force you to think deeply about your life, clarify its purpose, and identify what is truly important to you. Personal mission statements also force you to clarify and express as briefly as possible your deepest values and aspirations. It imprints your values and purposes in your mind so they become a part of you. Integration of your personal mission statement into your weekly planning is also a way to keep your vision constantly in front of you.  

How can you create your personal mission statement and why is it important?:  

Identify Some Past Successes. These successes can be personal or professional. Identifying a common theme is beneficial because it helps you identify what is important to you.  

Identify Your Core Values. Development of this list should outline a list of attributes that you believe best identifies who you are as well as your priorities. Once you have completed this step, identify which value is most important to you. Some may like to narrow the list down to a few values before choosing just one.  

Identify Your Contributions. Make a list of the ways you feel you could make a difference. How do you believe you can contribute to the world? Your family? Your employer? Your community? Your friends? Seeing your contributions detailed can help you best understand in what ways you would like to make a difference.  

Identify Your Goals. Consider your priorities in life and the goals you have for yourself. Listing your personal short-term and long-term goals are valuable in this step.  

Write Your Personal Mission Statement. This should now be easily completed based on the outcome of the first four steps.  

Why is it important?  

1. It integrates who you are.  

2. Provides focus.  

3. Simplifies any decision-making processes.  

4.Holds you accountable for your decisions and actions.  

Writing a personal mission statement is an act of self-discovery that can help us uncover things that we previously may not have otherwise known. Personal mission statements allow us to get to know ourselves better and discover our sense of purpose in life.  

Get started on yours this weekend.

Explanation:

Which rock layer is probably the oldest?
A.
3
B.
5
C.
2
D.
4

Answers

Answer:

3

Explanation:

Answer: 4

Explanation: THE OTHER ANWSER IS WRONG

_________ is a form of spina bifida in which a saclike cyst filled with CSF protrudes through the spinal defect but does not involve the spinal cord. a. Meningomyelocele b. Meningocele c. Myelomeningocele d. Spina bifida occulta

Answers

Answer:

b. Meningocele

Explanation:

Meningocele is a congenital deformity where there is a sac protruding from the spinal column, which is not related to acute neurological conditions. Thus, meningocele is caused by a protrusion of the meninges (i.e., membranes that envelop the brain and spinal cord) and cerebrospinal fluid but without accompanying nervous tissue. About 1,500 babies each year born with this type of spinal birth defect. Moreover, spina bifida occulta is a mild type of spina bifida caused when one or more vertebrae do not fully form during pregnancy. Finally, meningomyelocele (also known as myelomeningocele) is a severe type of spina bifida caused when the spinal cord and nerves develop outside of the body.

Answer:

b. Meningocele

Explanation:

Meningocele is a form of spina bifida in which a saclike cyst filled with CSF protrudes through the spinal defect but does not involve the spinal cord.

Read the following scenarios carefully and explain how natural selection will occur in each.

Some worms eat at night (meaning they are nocturnal) and some worms eat during the day (meaning they are diurnal). Most birds eat only during the day, so they are only eating diurnal worms, due to the fact that the nocturnal worms are burrowing during this time. Each spring when the worms reproduce, about 500 offspring are born but only 100 of them live long enough to reproduce themselves.

Answers

Answer:

The correct answer is - Noctural worms have the advantage over diurnal due to the fact that the nocturnal worms are burrowing during the feeding time of birds.

Explanation:

Natural selection is the process in which organisms adapt according to environmental changes to increase their survival rate. Natural selection leads to natural changes in different organisms.

In this case, diurnal worms are forced by the natural selection here to adapt to the change if they want to survive. Here, natural selection works for the nocturnal and against the diurnal.

in a school 58% of the total number of students are boys in the number of girls is 814 how many number of students are in the class​

Answers

Answer:

See below.

Explanation:

Given that 58% of the students are boys, 42% must be girls.

42% = 0.42.

x = unknown number of students

0.42x = 814

x = 1938 (about equal to)

Which best describes an abiotic factor?

O A living part of the environment

O A non-living part of the environment​

Answers

Answer:

B. Abiotic factor are non living part of the environment.

Explanation:

Biotic factors are the living factors . Abiotic factor is the non living factor.

A given ecosystem has the following amounts of energy available at each trophic level: Primary producers: 4,000 gC/m2/day; Primary consumers: 480 gC/m2/day; Secondary consumers: 72 gC/m2/day; Tertiary consumers: 24 gC/m2/day.
Does this ecosystem follow Lindeman's Law for ecological efficiency?
a. Yes, the average efficiency is 20%
b. Yes, the average efficiency is 10%
c. No, the average efficiency is 20%
d. No, the average efficiency is 10%

Answers

Answer:

b. Yes, the average efficiency is 10%

Explanation:

The average efficiency at each trophic level is 10% because there is about 10% of energy is transferred from one trophic level to another. In some trophic levels the efficiency of organisms is 20% but in most of the trophic level has 10% efficiency so that's why the average efficiency is 10%. Yes, this ecosystem  obeys the Lindeman's Law for ecological efficiency due to its 10% of ecological efficiency.

Yes, the energy available to all trophic levels is in the average of 10% which

follows Lindeman's Law for ecological efficiency.

Lindeman's Law for ecological efficiency states that the energy transfer from

one trophic level to the other should have a 10 percent efficiency. The

trophic level starts with the primary producers having more energy and the

tertiary consumers having the least amount of energy.

The example given shows that the different trophic levels in the ecosystem

have about 10 percent efficiency during energy transfer and availability.

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