What is the name of the protective sac in which the heart is enclosed?

Answers

Answer 1

Answer:

A fibrous sac called the pericardium surrounds the heart. The sac has two thin layers with fluid between them.

Explanation:

tell me if i am wrong :)

Answer 2

Answer:

the pericardium

Explanation:

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Related Questions

Hey guys could you help me???

Transfer RNA adds to the growing polypeptide by forming ___ bonds between ____ monomers.

A.
hydrogen; specific coded

B.
peptide; specific coded

C.
hydrogen; random

D.
peptide; random

Answers

I think it’s peptide

Your first big biology exam is coming up in a few days, and in order to prepare for late-night study sessions, you buy a box of Yummies, a delicious type of snack cake. After checking out the nutrition facts label on the side of the box, you discover that a single Yummie cake contains 4.5 grams of total fat, 27 grams of carbohydrate, 0 grams of fiber, and 1 gram of protein. After eating a Yummie cake, what molecule do you expect to be most abundant in your digestive system

Answers

Answer:

Carbohydrate.

Explanation:

The most abundant molecule that is present in the digestive system is the carbohydrates because the food contains higher amount of carbohydrates. The breakdown of carbohydrates leads to the presence of more glucose concentration in the stomach. The concentration of fats and proteins are low due to the presence of low amount in the food that the person can eats. Fats are converted into fatty acids while on the other hand, proteins are converted into amino acids.

PLEZ HELP ASAP I WILL MAKE U BRAINLIEST

Answers

Answer:

answer C

Coefficients are used in all chemical equations to show the relative amounts of each substance present.

Proteins on the surface of a human cell and on a bird influenza virus are represented in the diagram below. Describe a change in the bird influenza virus that would allow it to infect this human cell.

Answers

Answer:

Where is the diagram?....

50 POINTS

How can the environment impact a particular population of a species?

Answers

Answer:

Certain species need different environments to live in and if its too cold for one species it can lead to death of the population of that species.

that is what I put

Explanation:

what does a maple tree, saguaro cactus, and a water lily have in common?

Answers

Answer:

All use photosynthesis

All are plants

All reproduce sexually and asexually

Explanation:

Which method of heat transfer warms the air just above hot sand on a beach?

Convection, because heat is transferred through the solid sand
Conduction, because the air particles in contact with hot sand move faster
Conduction, because the heat moves with the help of electromagnetic waves
Convection, because the air particles transfer heat in the absence of a medium

Answers

Answer:

Convection

Explanation:

Because heat is transferred through the solid sand

Which is not a problem with the old-earth story?

Venus rotates backwards.
The sun rotates too slowly.
Earth is wobbling from a collision.
Uranus is tipped on its side.

Answers

Earth is wobbling from a collision because that’s two things colliding(guess and logic)

Answer:

(C) a windy and powerful storm system

Explanation:

on Edge 2020

Describe what scientists discovered when they studied "dancing animals." What ability do all dancing animals have in common? Explain the difference between innate behavior and learned behavior. Support your answer with information from the lesson.

Answers

The answer is that I have no idea what it is

What is meant by the term gender roles?
O A. The social injustice of being either a man or a woman
O B. The expected behavior of men and women
O C. The sex of a child at birth
O D. The gender a person wants to be

Answers

Answer:

B. The expected behavior of men and women

The term gender roles may be defined as the expected behavior of men and women in society. So, the correct option is B.

What do you mean by Behavior?

Behavior may be defined as the observable response of the individual to external or internal stimuli.

Gender roles describe the numerous aspects of the behavior of men and women in society. It includes how they speak, act, dress, behave, nurture their children, and many more.

Therefore, the correct option for this question is B.

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Help please!!!!
I will mark you brainliest if i get the correct answer
I need ASAP!!!!

Answers

Answer: c is the answer

Explanation: it the answer because spud waves travel without the air u hear it

I believe it's A: the sound is reflected in the glass jar

What is gold an example of?

Answers

Answer:

Money, Power, and Death

Explanation:

Answer:

nonrenewable resource

How does gene expression differ between human fibroblasts and induced pluripotent stem cells (iPS)?

Answers

Answer:

Both have different gene expression due to produce from different sources.

Explanation:

Gene expression is different between human fibroblasts and induced pluripotent stem cells because both cells are formed from different sources. Human fibroblasts is produced from ''mesenchyme'' a type of connective tissue whereas induced pluripotent are the stem cells which can be produced from adult cells so we can say that both have different gene expression.

Both have different gene expression due to produce from different sources.

The following information should be considered:

Gene expression is different between human fibroblasts and induced pluripotent stem cells since both cells are created from different sources. Human fibroblasts is generated from ''mesenchyme'' a type of connective tissue while on the other hand,  induced pluripotent are the stem cells that could be generated from adult cell.

Learn more: https://brainly.com/question/20492533?referrer=searchResults

Why is the size of a population limited to the carrying capacity of the environment?

Answers

Answer:

Because if the the environment cant support the population it will decrease until the resources are able to hold it again

Explanation:

In the tundra, what is the difference between the biotic and abiotic factors you saw in the image?

Answers

Answer:

Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.

Explanation:

Biotic is living part whereas abiotic is non-living part of an environment.

The main difference between biotic and abiotic factors is that biotic factors refer to the living part or component of environment such as plants, animals etc whereas abiotic factors refer to non-living part of the environment such as temperature, humidity and light etc. Both biotic and abiotic factors depends on each other for their survival so we can conclude that biotic is living part whereas abiotic is non-living part.

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which structure could limits water loss in plants?
A) big leaves
B) waxy cuticle
C) phloem
D) non of above

Answers

Answer:

Big leaves cause water loss

Answer:

B) waxy cuticle

Explanation:

B) waxy cuticle

What do desert plants not do so well? ​

Answers

Answer:

lack of water

Explanation:

Answer:

Hey mate.....

Explanation:

This is ur answer......

To survive, desert plants have adapted to the extremes of heat and aridity by using both physical and behavioral mechanisms, much like desert animals. ... Phreatophytes are plants that have adapted to arid environments by growing extremely long roots, allowing them to acquire moisture at or near the water table.

Hope it helps!

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A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer

Answers

Answer:B. Primary consumer

Explanation:The reason why Its b because that primary comsumers are mostly herbivores or the primary comsumer is the first consumer to eat the producer.Hope it helps!

How are DNA and chromosomes related?

Answers

A chromosone is a long DNA molecule


Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

compare and contrast the three types of symbiotic relationships.

Answers

Answer:

Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.

Which of these statements about budding is FALSE?
PLEASE HELP I WILL GIVE BRAINLIEST
A: The new cell is the same size as the parent cell when it breaks away.
B: Yeast is an example of an organism that reproduces through budding.
C: The nucleus of the parent cell divides, providing an identical nucleus to the new cell.
D: It is a form of asexual reproduction.

Answers

Answer:

A is false

Explanation:

Suppose a family replaces ten 60-watt incandescent bulbs with ten 30-watt fluorescent lamps. If each light was used for 4 hours per day and the cost of electricity was 10.0 ¢/kWh, how much money would they save in a year? Explain your answer. (This question is for a science gizmo)

Answers

Answer:

so i have no clue but i recommend looking up "*name of gizmo* answer key* and looking in images. always works for me.

Explanation:

Cancer is the uncontrolled growth of cells which of the following would be most likely to cause cancer

Answers

Answer:

What are the choices?.....

Is the thermos considered a conductor or insulator?

Answers

Answer:

no

Explanation:

Insulator is the answer


Explain the consequences of a base substitution mutation in relation to the processes of
transcription and translation.

Answers

Answer:

A base substitution is when the base in the DNA molecules is replaced with another base.

Explanation:

This substitution changes the base sequence of mRNA during transcription and in translation the amino acid sequence coded for by the mRNA will have a mistake in it because of its change in base

Overgrazing of land by livestock contributes to a major problem. Which of the following is most directly related to overgrazing
A. depletion of ground water
B. increased pollution
C.erosion of soil
D.acid rain

Answers

B sorry if I got this wrong

Overgrazing should be directly related to increased the population when it has the major problem. Hence, the correct answer is option B. increased pollution.

What is overgrazing?

It should be arise at the time when the plants should be exposed to intensive grazing for expanding the period of time or it should be without considering the recovery period i.e. enough.

Also, it should be leaded via livestock that should be not managed properly with respect to the agricultural applications, natural reserves.

Hence, the correct answer is option B. increased pollution.

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How is an ectotherm most likely to maintain homeostasis during hot weather? O A. By burrowing underground O B. By shivering O C. By sweating O D. By sitting on a warm surface​

Answers

Ectotherm (used to be called cold-blooded) rely on external sources for warmth. If they are too hot, they will look for shade or burrow underground

An ectotherm is most likely to maintain homeostasis during hot weather by burrowing underground. Thus, the correct option is A.

What is Homeostasis?

Homeostasis may be defined as the process that involves a condition of balance among all the body systems required for the body to survive and operate correctly.

Ectotherms are those organisms that can not be able to maintain their internal body temperature with respect to the external one.

They follow different strategies like hibernation during winters and aestivation during summers.

During hot weather, they usually undergo summer sleep by burrowing underground.

Therefore, the correct option for this question is A.

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Alex wants to know if a fossil he found was closely related to cats. some likely features of the fossil that can help him reach a conclus Check all that are true.

A. Bone Structure

B. Blood

C. Tissue

D. Skull Shape​

Answers

Answer:

A and D

Explanation:

A fossil is made of bones and it's the dead version of the animal, therefore it has to be A and D as blood and tissue have already rotted away.

I hope this helps you!! ^-^

If the DNA strand is AGT, translate the mRNA codon and find the correct amino acid.

Hint: Use your matching base pairs to translate into mRNA

A. Tryptophan

B. Serine

C. Stop

D. Valine

Answers

Answer:

B. Serine

Explanation:

Hope this helps

Answer:

B. Serine

Explanation:

The serine is the required amino acid. So, option (B) is the correct answer.

What are the possible consequences of genetic mutations?
1. Incomplete Protein
2. Poorly functioning protein
3. No change
4. Cancer
on-
0 1-4
O 3
O 1 & 2
04
O 2
O 1, 2, & 4

Answers

Answer:

1-4

Explanation:

Genes code for proteins through transcription and translation.  Each three nitrogen base sequence of a gene encodes for a specific amino acid.  The long chain of amino acids come together to form a protein  Mutations to genes can cause coding of incomplete proteins, poorly functioning proteins, no change or cancer.

Other Questions
Will mark brainliest and give 15 points Use the GCF to write an equivalent expression in factored form for the expression 21a + 28y Which is equivalent to the expression below?2k + (3m ) 6k + 2m A. 4k + (2m) B. 4k + (m) C. 4k 5m D. 4k m DNA tells the body how to make _____. Proteins are the bodys basic _____ _____. Genes are chunks of _____. Genes are the basic units of _____. _____ are passed on from parents to children in the form of _____. Genes tell the body: Chromosomes are long strands of ____ wrapped around proteins called _____. _____ contain many _____, along with long strands of DNA whose purpose weve yet to figure out. You are working as an electrical technician. One day, out in the field, you need an inductor but cannot find one. Looking in your wire supply cabinet, you find a cardboard tube with single-conductor wire wrapped uniformly around it to form a solenoid. You carefully count the turns of wire and find that there are 570 turns. The diameter of the tube is 8.10 cm, and the length of the wire-wrapped portion is 35.0 cm. You pull out your calculator to determine the following.a. the inductance of the coil (in mH)b. the emf generated in the coil if the current in the wire increases at the rate of 3.00 A/s (Enter the magnitude in mV.) What is MeanMedium And Mode Which number produces a rational number when added to 1/5 Directions: In an in-depth analysis. Compare Caged Bird by Maya Angelou to what we can infer about Boo Radley from Chapter 1-9 of To Kill a Mockingbird. Your analysis should be 2 or more paragraphs, quoting both Caged Bird and To Kill a Mockingbird. Caged BirdBY MAYA ANGELOUA free bird leapson the back of the wind and floats downstream till the current endsand dips his wingin the orange sun raysand dares to claim the sky.But a bird that stalksdown his narrow cagecan seldom see throughhis bars of ragehis wings are clipped and his feet are tiedso he opens his throat to sing.The caged bird sings with a fearful trill of things unknown but longed for still and his tune is heard on the distant hill for the caged bird sings of freedom.The free bird thinks of another breezeand the trade winds soft through the sighing treesand the fat worms waiting on a dawn bright lawnand he names the sky his ownBut a caged bird stands on the grave of dreams his shadow shouts on a nightmare scream his wings are clipped and his feet are tied so he opens his throat to sing.The caged bird sings with a fearful trill of things unknown but longed for still and his tune is heard on the distant hill for the caged bird sings of freedom. What is the distance between the points (-4,5) and (8,9) Which decimal is equivalent to 1/3 ANSWER QUICK PLEASE!!which statement best describes harriet tubman?A. She started an abolitionist newspaper that influenced many politicans.B. She wrote a novel that showed many americans the horrors of slavery.C. She led slave rebellions on plantations throughout the south.D. She risked her life many times t help slaves escape to freedom 2. Raj buys a terrarium that is in the shape of a triangular prism. The dimensions of theterrarium are shown below.o 3 ) O 2 (3 (0()) + 3 (5. 10) = 174S in5 in4 in10 in6 in(6) (4)+ (5.10)+ 2 (6 - 10) 122Raj knows that every triangular prism is made up of two triangular sides and threerectangular sides. Which equation represents the total surface area, in square inches,of the terrarium?O(6 + 5 + 5)(10)+2 (3 (019)CLEAR ALL Many types of fungi are responsible for the breakdown andrecycling of organic material in an ecosystem. Fungi are anexample of a(n) What is the perimeter of ABCD?14 units38 units44 units49 unitsANSWER: C) 44 units 1. Areas where seawater meet the freshwater from the rivers is also a home to variouskinds of animals. These areas are called estuaries. What services do estuaries provide?A. It provides area that is above water level at low tides and underwater at high tideB. It provides an active area of research because the communities are often welldefined and the common organisms.C. It provides vital nesting, breeding and feeding habitats for many species.D. It provides sediments in which organisms bury themselves. Mookie Betts of the Boston Red Sox had the highest batting average for the 2018 Major League Baseball season. His average was 0.352. So, the likelihood of his getting a hit is 0.352 for each time he bats. Assume he has five times at bat tonight in the Red Sox-Yankee game. a. This is an example of what type of probability When this type of ultra-massive star runs out of fuel, it goes through an initial WHOOOOOSH! of collapse. However, because its enormous mass generates such tremendous gravitation, there's no CRASH! of a rebound or BOOM! that blasts gases out into a supernova. Instead, the matter just keeps on whooshing inward, directly forming a black hole.A Black Hole Is NOT a Hole,Carolyn Cinami DeCristofanoChoose the signal words that point to a cause in the passage. You will check more than one correct answer. howeverinsteadwhenbecausethrough SLANDER - Love Is Gone ft. Dylan Matthew (Acoustic) - Lyricsyoooooooo this song doe The most popular pizza at Pavones Pizza is the 9-inch personal pizza with one topping. What is the area of a pizza with a diameter of 9 inches? Shinto does not focus on a central god or book?a. Trueb. False