Which organism has the more efficient heart?
A: a frog
B: a robin
C: an alligator
D: a tuna​

Answers

Answer 1
B. Robin

Mammals and birds have the most efficient hearts
Answer 2

Answer:

I think its a alligator or a frog I'm not rlly sure but I think it might be a alligator


Related Questions

pls help ill give brainlliest and 5 stars

Answers

lavasedimentationmagmasediment

Answer:

hot melted rock that flows on the earth's surface is lava

hot melted rock under earth's surface is magma

matter that settles at the bottom of a liquid is sediment

the process of settling or being deposited as sediment is sedimentation

:)

Explanation:

How do scientists think life may have begun on the Earth

Answers

Answer:

microbes that left signs of their presence in rocks that are about 3.7 billion years old.

Explanation:

Answer:

After things cooled down, simple organic molecules began to form under the blanket of hydrogen. Those molecules, some scientists think, eventually linked up to form RNA, a molecular player long credited as essential for life's dawn. In short, the stage for life's emergence was set almost as soon as our planet was born

How could harm to one resource among the commons listed in part b cause harm in another part of the environment?

Answers

Answer:

Take a picture of what the problem is, because your question isn't clear

Explanation:

Not using complete sentences

For example, overfishing can harm fish populations, leading to imbalances in the food chain and harm to other species.

What are commons?

The commons, as a concept, refers to shared resources that are available to all members of a community or society. These resources can include things like air, water, land, and wildlife. When harm is caused to one of these resources, it can have a cascading effect on other parts of the environment.

For example, if pollution from a factory contaminates a river, it can harm the fish and other aquatic life that live in the river. This, in turn, can impact the local ecosystem and reduce the biodiversity of the area. The contaminated water may also be used for agriculture, leading to contaminated crops and potentially harming human health.

Similarly, deforestation can lead to soil erosion, which can cause sedimentation in rivers and harm aquatic life. It can also contribute to climate change by reducing the amount of carbon that is absorbed by trees and released back into the atmosphere.

In summary, harm to one resource among the commons can have far-reaching effects on other parts of the environment, highlighting the importance of managing these resources sustainably.

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PLEASE HELP!
Why is nuclear fusion currently not feasible as a source of electrical energy?

Answers

Answer:

Fusion is generally impossible because the strongly repellent electrostatic forces between the positively charged nuclei prevent them from colliding and fusing. One of the key reasons we haven't been able to realize the promise of fusion is because its energy requirements are outrageously large. High-energy neutrons are produced during fusion reactions, although they are not radioactive in and of themselves. They do, however, have such a strong influence on the reactor's walls.

9 Use your codon table to fill in the amino acid (three letter abbreviation below each codon to dscover the
sequence of the polypeptide created from this mRNA
GAU CA A dau ac a daus Alsace u ce a cu
G
AAA

Answers

Answer:

UAC-UUG-UAC-GCG-CUA-CCU-CCU-GAG-GUG-ACU-UUU-UUU-UUU

Explanation:

How does the haploid form of ulva switch to its diploid form?.

Answers

Gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.

The haploid form of Ulva switches to the diploid form when gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote. Therefore, option D is correct.

What are gametophytes?

The sexual stage in the alternation of plant generations and some algae is called a gametophyte. This stage results in gametes that go through generational alternation. It produces the zygote from which sporophytes develop and is a haploid phase.

The gametophyte stage of life is the predominant one in bryophytes. The male and female gametes are produced by the gametophyte's antheridia and archegonia, respectively. Gametangia are all of these structures put together.

Thus, the haploid form of Ulva switches to the diploid form when gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote. Therefore, option D is correct.

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Your question is incomplete, most probably the full question is this:

How does the haploid form of Ulva "switch" to its diploid form?

A. Sporophytes undergo meiosis to produce spores that germinate into diploid adults.

B. Gametophytes produce cells that undergo meiosis and produce spores that germinate into diploid adults.

C. Sporophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.

D. Gametophytes produce cells that undergo mitosis to produce gametes that fuse to form a zygote.

An estuary?
A. is only found inland.
B. filters dirt and pollution out of the water.
C. is a deposit formed where a fast-flowing stream flattens?
D. is a small watershed.

Answers

Answer:

b. filters dirt and pollution out of the water

Explanation:

just answered the question :)

What is the process by which organisms
keep internal conditions stable?

Answers

answer

so,the process by which organism maintain a relatively stable internal environment

,is homeotasis

The hormone ________ signals feelings of fullness to the brain.

Answers

Answer:

Leptin

Explanation:

Leptin is the fullness hormone. It is secreted by your fat cells and other parts of the body and it tells your brain when you've gotten enough energy.

Often, ____________ or basidiomycetes are the fungi involved, and they form several layers of hyphae, one of which envelops the photosynthetic ____________ .

Answers

Most of the time in lichen, ascomycetes or basidiomycetes form the fungal part with several hyphae layers enveloping the photosynthetic algal part.

Lichens

Lichens are composite organisms. They are formed from a symbiotic relationship between fungi and algae. The fungi provide shelter and some vital minerals for the algae while the algae provide food via photosynthesis.

Oftentimes, the fungi components are usually ascomycetes or basidiomycetes. They form a network of hyphae around the photosynthetic algae as a form of protection.

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The model shows what happens to chromosomes during a certain part of the cell cycle
A.Metaphase
B.Interphase
C.Telophase
D.Anaphase​

Answers

The answer is Metaphase

l The movement of land masses during the history of the Earth.​

Answers

Answer:

The movement of the plates sometimes leads to earthquakes and tsunamis.

What is one part of the DNA molecule that changes?

Answers

The base or nitrogenous base.

Which type of reproduction is most adaptive in a rapidly changing environment with many different parasitic diseases present

Answers

Answer:

s3xual reproduction.

Explanation:

Why were there no coal deposits formed during the Precambrian time? Choose the correct answer. There were no swamps with land plants. There was not yet enough carbon on Earth. There was not enough land on which coal deposits could form. There was not enough carbon dioxide in Earthâs early atmosphere

Answers

There were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.

What is the Precambrian?

The Precambrian is a Super Aeon, corresponding to the time period from the formation of the Earth (~4.6 billion years – b.a.) to the beginning of the Cambrian Period (~542 million years – m.a.).

With this information, we can conclude that there were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.

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If there is no fertilization, degeneration of the corpus luteum results in a drop in _____, which results in the sloughing off of the uterus's endometrium.

Answers

Degeneration of the corpus luteum results in a drop in progesterone production.

What is progesterone?

Progesterone is a hormone produced by the corpus luteum that allows the uterus to prepare for fertilization. The halt in production of this hormone then causes the sloughing of the uterus's endometrium, which results in the individual undergoing the process of menstruation.

Therefore, we can confirm that the degeneration of the corpus luteum results in a drop in progesterone production.

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Question 1 of 5
Which strategy during the planning stages of a group project would most
likely prevent this problem?
It's clear to group members what tasks in a project need to be
completed, but some members are worried they that don't have the
skills necessary to completescertain tasks.
O A. Choose an organizer.
B. Choose roles
C. Identify deadlines.
D. Listen actively

Answers

Answer:

B. Choose roles

Explanation:

Choosing roles would be the best choice in order to avoid the problem stated, because certain people can be put to work on a certain section of the project (that they are suited for). That way, no one will feel as if they lack the skills to complete another part of the project.

Choosing an organizer wouldn't help much because they'd only be organizing the project itself, not the parts that people play within it. Identifying deadlines wouldn't help at all. It would cause stress if anything. Lastly, listening carefully also wouldn't help, because listening to so-and-so won't do anything to the problem at hand. You'd just be listening.

hope this helps!

The strategy during the planning stages of a group project that would most likely prevent the problem of some members being worried about not having the necessary skills to complete certain tasks is to choose roles. The correct option is B.

What is group project?

A group project is a collaborative effort where a group of people works together to achieve a common goal or complete a task.

By deciding on roles, each group member can be assigned tasks that are best suited to their skills, interests, and experience.

This can help to ensure that everyone in the group is confident in their ability to complete their assigned tasks and that the workload is evenly distributed.

The most effective strategy for avoiding the problem of members being concerned about not having the necessary skills to complete certain tasks is to assign roles during the planning stages of a group project.

Thus, the correct option is B.

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Genes determine the of organisms. why do you guys give a whole essay for a dang answers but thx anyways

Answers

genes determine the traits of organisms

what are the challenges and opportunities moving forward

Answers

28 goals . and how u set them ! sorry if i’m wrong

In the peripheral nervous system, schwann cells participate in the repair of damaged nerves by:.

Answers

Schwann cells participate in the repair of damaged nerves by forming a cellular tube that can direct the growth of new axons.

What is Schwann cell?

They are referred to as the myelinating cell of the peripheral nervous system and support cells of peripheral neurons.

They participate in nerve cell repair by the formation of a tube that can direct the growth of new axons.

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Cancer is when cells multiply at an uncontrolled rate. These cells then group together to form a mass (tumor). The cells within a tumor are much smaller than normal cells would be.
Based on this information which phase of the cell cycle is not functioning properly? Support your answer with evidence from the model/explanations.

Answers

Answer:

Mitosis

Explanation:

When Mitosis is not regulated then cell division is not regulated.

Of the following, the most impactful action you can take to reduce your
carbon footprint is:

Answers

Answer: C. Eat a plant-based diet

Explanation: Of the following, the most impactful action you can take to reduce your

carbon footprint is: Eat a plant-based diet

Carbon footprint is the emission of the greenhouse gases like carbon. Lights should be turned off whenever not in use can help in reducing the carbon footprint. Thus, option A is correct.

What is a carbon footprint?

The carbon footprint is the amount of carbon, methane, and other greenhouse gases emitted due to natural or man-made activities. It is expressed in the terms of carbon dioxide released into the atmosphere.

The lights should be turned off whenever not in use to reduce the emission of the gases that harms the ozone and environment as the light energy release many greenhouse gases.

Therefore, the lights should be turned off whenever not in use to reduce the carbon footprint.

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Which tissue protects the organs? A. Muscle b.connective. C.nerve. D.epithelia

Answers

Answer:

B. connective tissue

Explanation:

they act as a sorta framework for the organs, protecting them from moving around too much and also separates them from one another

Please help, I’ll mark your answer as brainliest.

Answers

People or animal related.

Once the dna at the replication fork is unwound by helicases, what prevents the two strands from coming back together to re-form a double helix?.

Answers

single-stranded binding proteins

_____is the application of force to move something closer. *
1 point
A. push
B. pull
C. a push and a pull
D. All of the above

Answers

Explanation:

push is the application of force to move something closer..

Point, . push ,a push and a pull is the application of force to move something closer.

Option (D) is correct.

When you apply force to move an object, there are generally two ways to do it: pushing or pulling.

1. Pushing: This is when you exert force on an object away from you, causing it to move in the direction of the force. For example, if you push a chair forward, you apply force in the direction away from you, making the chair move forward.

2. Pulling: This is when you exert force on an object towards you, causing it to move in the direction of the force. For instance, if you pull a door towards you, you apply force in the direction towards you, making the door move inwards.

So, the application of force to move something closer can involve either pushing or pulling. Therefore, the correct answer is "All of the above" (D), as both A (push) and B (pull) are correct ways of applying force to move something closer.

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List 2 objects that look like tightly coiled strands of DNA?

Answers

Chromosomes and linkage groups are 2 fragments of DNA ordered in decreasing size that represent tightly coiled strands of DNA.

What is DNA?

Deoxyribonucleic acid (DNA) is the genetic material that all organism uses to transmit hereditary characteristics.

DNA is a double helix molecule composed of two long chains of nucleotides linked via hydrogen bonds.

In eukaryotic cells, DNA is associated with histone proteins, which make it a tightly coiled molecule.

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1. What function do spindles perform during mitosis?






2. What function do centrioles perform in animal cell mitosis?

Answers

The spindles function to align and separate the sister chromatids during anaphase of mitosis, pulling one daughter chromosome to each newly forming cell.

Centrioles function to synthesize these spindles.

Help me with this bs packet thing

Answers

crossword
1. hyphae
3. heterotroph
7. eukaryote
8. flagella
11. protists
9. nucleus
10. bacteria
12. prokaryotic
13. autotroph

What type of fuel does each energy system produce?.

Answers

Answer:

carbon?

Explanation:

Energy systems produce ATP, during every process cellular respiration is the major process of the system.

How ATP as fuel produce by each energy system?

During cellular respiration, all the metabolic intermediates finally produce ATP, and in glycolysis, the Kreb cycle produces reducing products which finally oxidize in the electron transport chain.

The electron transport chain produces fuel as ATP, it is an enzymatic chain reaction that produces an electromotive force that is responsible for the production of ATP.

ATP is a major fuel for every cellular process which acts as an energy form that is extracted from metabolic intermediates.

Therefore ATP is a major fuel produced by the system.

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please help me last question more points Remplace devoir par il faut. a) Tu dois teindre la tlvision. b)Tu ne dois pas laisser le robinet ouvert. c)Nous devons utiliser du papier recycl. d)Vous ne devez pas dtruire la nature. e) On doit respecter les animaux. help me pls guys guys Which of the following sentences contains the most cowardly connotativeverb?A. Tom strutted down the hall.B. Tom skipped down the hall.C. Tom walked down the hall.D. Tom slunk down the hall. Determine the perimeter Zahra plans to draw a triangle with angles measuring 50 degrees, 60 degrees, and 70 degrees. Which is true about Zahras plan?Zahra cannot make a triangle with these angle measures.Zahra can only draw one unique triangle with these angle measures.Zahra can make exactly two triangles with these angle measures.Zahra can make more than one triangle with these angle measures. Can some help me I will mark u brilliant connects you to the people you are speaking withThe conversation topleEye contactSimple wordsUsing their name repetitively help please, I need it fast A block of mass 3. 0 kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above. The 3. 0 kg block is then replaced by a 4. 0 kg block, and the new block is released from the position shown above, at which the spring is unstretched. How far will the 4. 0 kg block fall before its direction is reversed?. match each sentence part to the question it answers Devon is very good with people. she works for a pharmaceutical company and often visits doctors to see if they will sell her product to their patients. in which career pathway is devon most likely involved? marketing communications professional sales and marketing distribution and logistics e-marketing are these lines parallel or perpendicular? 2y=-3x=5 and y=3/2-6 Is anyone able to figure this out, I can't do this The most common type of tree ispalm.shrub.conifer.deciduous. Who chooses the president if the candidates do not meet the requirements to win an election? why people deny climate change as a serious issue especially in America. The original star-bellied Sneetches paid to have their stars removed then declared that they were better because of the lack of stars on their bellies. Because they were the dominant group, they could make and enforce such statements and other rules that ensure they retain their power. This is in line with which theory?Realistic group conflict theorySocial dominance theorySocial identity theoryIntergroup conflict reduction In the figure below, all lines intersect at point W. What is the value of angle VWX? 4.Which point on the number linerepresents 0.3?