choose all that apply.
The heart ___.

pumps blood to the body.

has four chambers.

is part of the cardiovascular system.

is made of skeletal muscle.

works with the respiratory system.

(you can pick more then one!)​

Answers

Answer 1
The 1st, 2nd, and 3rd are true.
Answer 2

The person above is right!


Related Questions

The diagram below shows a model of four waves. An image of four waves labeled W, X, Y, Z is shown. Wave W has the smallest distance from crest to crest across the length of the wave. Wave Z has the largest distance from crest to crest across the length of the wave. Wave X has a larger distance from crest to crest than Wave W but are not as far apart as Wave Y. Wave Y has a larger distance from crest to crest than Wave X but not as far apart as Wave Z. Which wave has the lowest frequency? W X Y Z

Answers

Answer:

The Answer is D(Z)

     Hope this helps-KayPea

Explanation:

Answer:

The Answer is D(Z)

Explanation:

If a red blood cell has a diameter of 8 mm and a student shows it with a diameter of 40 mm in a drawing, what is the magnification of the drawing?
O X5
O X 5000
X0.0002
O X0.2

Answers

The answer is O X 5000
I hope I helped

What are two examples of adaptations used by animals that live in aquatic biomes?

Answers

Answer:    Common oceanic animal adaptations include gills, special breathing organs used by some oceanic animals like fish and crabs; blowholes, an opening on the top of the head that's used for breathing; fins, flat, wing-like structures on a fish that help it move through the water; and streamlined bodies.

Explanation: Hope this helps :)

The two examples of adaptations used by animals that live in aquatic biomes are gills and webed feet. The correct option is D.

What is adaptation?

A structural adaptation is one that is physically a part of the organism. Another type of adaptation is behavioural, which modifies how an organism reacts to its surroundings.

Aquatic animals have adapted by, among other things, having stream-lined bodies that make swimming easy for them.

Their respiratory system is made up of gills. Fish have many different types of fins, including pectoral, and caudal fins, which serve as their locomotory organs.

There are two different kinds of aquatic ecosystems: freshwater and marine. These aquatic adaptations include: inside human bodies, there are specific air spaces.

The  fins are present. Oil droplets on microscopic plants keep them floating.

Thus, the correct option is D.

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Your question seems incomplete, the missing options are:

a. depth and water flow

b. temperature and body shape

c. large ears and lungs

d. gills and webed feet

There are 252 deer in a population. There is no net immigration or emigration. If 47 deer die and 32 deer are born in one month, what is the population size at the end of the month? Round your answer to the nearest whole number

Answers

Answer:

240

Explanation:

252-47=205

205+32=237

237 to the nearest whole number is 240

hope it helps

Scientists who have strong moral beliefs about the subject that they study may show bias in the way they interpret their data
True
False


Please help me

Answers

i do not know but i think true?

Little brown bats are a species of bat in the genus Myotis. Little brown bats are extremely common in North America, where they roost in houses, buildings, or trees. In the winter, the bats hibernate in caves, unused mines, or other similar locations. Unfortunately, little brown bats are threatened due to white-nose syndrome. Given these terms related to bats, match the term to the level of biological organization.all little brown bats

Answers

Answer: population: The bat species of North America

community : a little brown bat

organism: bat

Explanation:

Here, the population of the bat resides in the North America in the houses, trees and buildings they hide in the caves in winters for hibernation. Inside the cave they form a bat community here the organism is bat. These bats are threatened in numbers due to white nose syndrome. The white nose syndrome is the fungal growth on the wings and muzzles of the bats. The fungus affects the bats during hibernation, when the bats trying to save their energy by reducing their metabolic rate. It is transferrable from one bat to another thus can infect the entire population of bat. It is a dangerous disease.  


Mendel studied 7 traits in pea plants. One of the monohybrid crosses he made was between plants with round seeds (R) and plants with wrinkled
seeds (0)
Seed
Shape
Round
х
Wrinkled
Round
What was a conclusion that Mendel drew from the F2 generation of this cross?
A.
Three fourths of the F2 plants show the round seed phenotype and carry the dominant allele for roundness.

Answers

Answer:

option A

Explanation:

option A is the correct answer of this question .

plz mark my answer as brainlist plzzzz vote me also.

hope this will be helpful to you.

three fourth of f2 plant showed round seed phenotype and carry dominant allele for round ness character.

what is dominant character ?

allele can be defined as a form of a gene which can be present as a pair shows either homozygous or heterozygous phenotype of a character.

these gene can express the phenotype either dominant or recessive form. In a cross between two organism, in F2 generation the offspring's are produced shows three phenotypes homozygous dominant, recessive, heterozygous dominant.

dominant allele can suppress recessive allele.

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Scientists have discovered convection
currents inside Earth. Explain how these
convection currents move and what layer(s)
they occur in.

Answers

Answer:

The convection currents move in a slow churning motion

Explanation:

This movement happen in the mantle which includes the lithosphere, the Asthenosphere, and the mesosphere

Summarize the water cycle

Answers

Answer:

The water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation. ... The cycling of water in and out of the atmosphere is a significant aspect of the weather patterns on Earth.

How would I explain the carbon cycle to a 1st grade classroom?

Answers

Answer:

To a 1st Grader:  

Carbon is the magic element that is the basis of life on Earth. All living things contain carbon. Animals breathe it out, and plants breathe it in. Plants, people and animals depend on each other.

The carbon cycle is a process where carbon dioxide travels from the atmosphere into living organisms and the Earth, then back into the atmosphere. Plants take carbon dioxide from the air along with water and photosynthesis from the sun and use it to make food.

Explanation:

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.  To a first grader is different because they wouldn't understand what half of these words mean lol.

The carbon cycle is the biogeochemical cycle that exchanges carbon between the Earth's biosphere, parallel layers, geosphere, hydrosphere, and atmosphere.

What is the importance of carbon cycle?

The carbon cycle is nature's method of recycling carbon atoms, which travel from the atmosphere into organisms on Earth and then back into the atmosphere.

The majority of carbon is stored in rocks and sediments, with the remainder in the ocean, atmosphere, and living organisms.

The carbon cycle is critical to the survival of life on Earth. Nature has a tendency to maintain carbon levels in balance.

This means that the amount of carbon naturally released from reservoirs equals the amount naturally absorbed by reservoirs. Maintaining this carbon balance ensures that the planet remains habitable for life.

Thus, by regulating the rate of carbon dioxide in the atmosphere, the carbon cycle plays an important role in regulating Earth's global temperature and climate.

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What happens when the slightest change happens in an ecosystem?

A. It affects the whole system.
B. It affects part of the system.
C. The ecosystem ignores the change.
D. Nothing happens.

Answers

A it affects the whole system

Select 2 choices

1-The blood entering the lung is colored bright red.

2-The blood leaving the lung iscolored bright red.

3-The body takes in oxygen and releases carbon dioxide.

4-Oxygen gas is mainly transported via the red blood cell's hemoglobin.

5-The blood leaving the lung is richer in carbon dioxide than the blood entering the lung.

6-Carbon dioxide is mainly transported via the red blood cell's hemoglobin.

Answer and I will give you brainiliest

Answers

1 and 5, Solvent, and yh I am not sure but I think so

Humans use their respiratory system to inhale oxygen and exhale carbon dioxide. It also allows people to talk, laugh, and sing.

Major organs involved include the nose and mouth, nasal passages, trachea, bronchi (singular: bronchus), lungs, alveoli, and diaphragm.

The respiratory system has a close relationship with the circulatory system, oxygenating blood for tissues to survive and expelling carbon dioxide as waste.

Radiocarbon dating uses a radioactive isotope of the element _______
determine the ages of old objects.

Answers

Radiocarbon dating uses a radioactive isotope of the element carbon to determine the ages of old objects.

5. Dieting often leads to weight gain.
True
False

Answers

Answer:

the answer is false. Dieting usually leads to weight loss.

g Which on the list below is allowed in a Biohazardous waste ility of your PI or LSC to provide you with agent specific training in your lab: A. True B. False Work with microorganisms not known to cause disease in healthy adults is done at: A. Bio safety level 4 B. Bio safety level 3 C. Bio safety level 2 D. Bio safety level 1 Biohazardous waste boxes are provided by: A. Discounted pricing by Sourcing B. Work order by Facilities C. Custodial staff or EHS D. None of the above It is ok to use fuming chemicals in the biosafety cabinet because they are filtered and the air is cleaned before leaving the building: A. True B. False Before beginning work inside a Biological Safety Cabinet do all the following except: A. Disinfect the inside surface of the cabinet B. Turn on blower and let cabinet run for 15 minutes prior to work commencing C. Fill the cabinet with equipment and obstruct air flow D. All of the above You self-transport out of the USA all research samples without documentation: A. True B. False

Answers

Answer:

True

False

Bio safety level 1

Custodial staff or EHS

True

All of above

True

Explanation:

Micro organisms are little organisms which are not seen by naked eyes. They can harm human and cause diseases in humans. The statement is true.

A population of birds eats nuts and seeds. Some birds have larger beaks, and some have smaller beaks. A pair of birds usually produces four or five offspring each year. After several yeaers of little rain, the seeds became larger and larger. The birds with larger beaks were better at cracking these seeds. After several generations, the average beak size in the population increased. Bird beak size increasing after several generations is: a. decent with modification. b. variation. c. overproduction. d. adaptation

Answers

As far as I can tell, the answer would be D. Adaptation. The birds are evolving to adapt to their environment, and as such, their beaks are getting larger to crack larger seeds.

Help so easy with number 5

Answers

The Answer is C. stratosphere

The bark of a tree trunk includes which of the following tissues?
A. primary and secondary phloem
B. Heartwood and phloem
C. Heartwood and sapwood
D. Secondary phloem and layers of periderm

Answers

D. Secondary online and layers of periderm

DNA is what type of macromolecule?

Answers

Answer:

Nucleic Acid

Explanation:

DNA is made up of the nucleic acids Adinine, Thymine, Cytosine, and Guanine.

The 4 planets that are closest to the Sun are called terrestial planets while the 4 outermost planets are called 'gas giants' or 'ice giants'.

True
False

Answers

Answer:

TRUEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Explanation:

Answer:

true

Explanation:

they are much bigger than the terrestial planets

pls help im begging

Answers

Answer:

Im pretty sure Its A (i might be wrong though)

Explanation:

Answer:-
I think option A) or C)

Explanation:-
A) because rocks are formed by physical changes
C) because sediment rocks are composed of minerals and organic particles


Hope it helps... hv a great day !!!

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event? Select all that apply. Select all that apply. wild type miniature wings garnet eyes miniature wings, garnet eyes SubmitRequest Answer Part B If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes? __wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answers

Complete question:

The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenotypically wild-type females (m + g / mg +) were mated to miniature-winged males with garnet eyes.

Part A

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event?

Select all that apply.

garnet eyes wild type miniature wings miniature wings, garnet eyes

Part B

If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes?

__wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes

Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answer:

Part A:

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

Part B:

32:368:368:32  

Explanation:

When calculating the recombination frequency, we need to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.  

The map unit is the distance between the pair of genes for which every 100 meiotic products, only one results in a recombinant one.  

So, en the exposed example:

PART A:

First, we need to Identify the gametes for the individual with the genotype m + g / mg + and label parental and recombinants

Gametes:

m+ g parental type m g+ parental type m+ g+ recombinant typem g recombinant type

Knowing that the only possible gamete type for the other parental is mg, then we can identify the phenotypic classes of the offspring that were generated as a result of a crossover event. These would be

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

PART B:

We know that the total number of individuals equals 800.We also know that the distance between genes equals 8 MU.

To calculate the number of the phenotypes among the offsprings,

          8 map units = 8% of recombination in total  

                               = 8/2% m+g+/mg + 8/2% mg/mg  

                                = 4% + 4%

The recombination frequency of m+g+/mg equals 0.04

The recombination frequency of mg/mg equals 0.04.

               

             100% - 8% = 92% of parental in total =

                               = 92/2% of m+ g/mg + 92/2% m g+/mg  

                               = 46% + 46%

The recombination frequency of m+g/mg equals 0.46

The recombination frequency of mg+/mg equals 0.46.

The frequency for each ggenotype is:

F (m+g+/mg) = 0.04  F (mg/mg) = 0.04. F (m+g/mg) = 0.46 F (mg+/mg) = 0.46.

The number of individuals with each genotype is:

m+g+/mg = 0.04 x 800 = 32mg/mg = 0.04 x 800 = 32m+g/mg = 0.46 x 800 = 368m g+/mg = 0.46 x 800 = 368

32 wild type : 368 miniature wings : 368 garnet eyes : 32 miniature wings, garnet eyes

Is this correct please tell me if it is and if it ain't tell me correct answer

Answers

Answer:

I think u right. it's what I woulda picked

Yea im pretty sure c is right

match the words to the definitions

Answers

Answer:

Homo- means same

tetra- mean 4

Explanation:

Tetra:4 Homo: Same

:) :) :) :) :)

In Drosophila, grey body is dominant to black, and long wings is dominant to short wings. Two unlinked pairs of alleles, G/g and L/l, cause this pair of traits respectively. Six pairs of flies of unknown genotypes are mated, giving the results listed below. Write the genotypes of the parental flies in each cross using the gene symbols above.

Types of progeny____
Cross Parents Grey Grey Black Black
Long Short Long Short
1 grey long x grey short 43 46 14 17
2 grey short x grey short 0 61 0 23
3 black long x grey long 40 0 44 0
4 grey long x grey long 48 18 0 0
5 grey short x grey long 31 33 0 0

Answers

Answer:

GgLl    x    Ggll ---> grey long x grey short Ggll    x    Ggll ---> grey short x grey short GgLL    x    ggLL   or   GgLL    x    ggLl ---> black long x grey long GGLl    x    GGLl    or  GGLl    x    GgLl ---> grey long x grey long  GGLl     x     GGll    or   GgLL    x     GGll ---> grey short x grey long

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Which scenario describes a relationship of mutualism?


A polar bear catches a seal for dinner.


Oxpecker birds eat parasitic ticks off the backs of zebras.


Birds feed off the insects that are stirred up from the grasses as cattle move through.


A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.

Answers

Answer:

hello the answer is B hope this helps

Explanation:

Answer:

b

Explanation:

The volume of a liquid is often given in a. meters. c. liters. b. centimeters. d. square units. Please select the best answer from the choices provided A B C D Mark this and return

Answers

Answer:

C

Explanation:

Liters is a normally used measurement for liquids.

Which location would u most likely NOT expect an earth quake


Location 1
Location 2
Location 3
Location 4

Answers

Answer:

Location 4

Explanation:

The closest you are to a tectonic plate, the most likely is to expect an earthquake. Note how Location 3 is over California. So, location 4 is away from the tectonic plates.

Answer 24-25 please, please do not comment nonsense if not you will be reported. The first accurate and correct answer gets brainliest

Answers

Answer:

The first answer is C. photosynthesis

The second is B.

Photosynthesis produces glucose and oxygen, but because the question is asking what food does the equation produce the answer is B not A. Oxygen is a byproduct of photosynthesis and not used by the plant.

Explanation:

NEED HELP WITH THIS QUESTION!!! PLEASE HELP ME!!!

Answers

Answer: xylem

Explanation:

Direction of transport : Xylem= Upwards

Phloem=Upwards and downwards

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