Both the heart and arteries contract to pump blood throughout the body. true or false? True Both the heart and arteries contract to pump blood throughout the body. The heart contracts to move the blood flow through your arteries to the rest of the body

Answers

Answer 1
The correct answer of the given statement above would be TRUE. It is true that both the heart and the arteries contract to pump blood throughout the body. The arteries carry oxygen-rich blood to capillaries. This is the muscular-walled tubes forming part of the circulation system. Hope this is the answer that you are looking for. Have a great day!
Answer 2

Answer:

TRUE

Explanation:


Related Questions

Which of the following statements about wildfires in deciduous forests is not true?
a. Deciduous forests are unaffected by wildfires.
b. Lichen and moss growth increases in deciduous forests as a result of wildfires.
c. Nutritional quality of new growth increases temporarily after a wildfire.
d. The quantity of trees in deciduous forests is unaffected when it occurs less than once every five years.

Answers

The answer is A!  Deciduous forests are not affected by a wildfire or a prescribed fire.

The statement which is not true about wildfires in deciduous forests is that Deciduous forests are unaffected by wildfires. Thus, the correct option for this question is A.

What is meant by Wildfires?

Wildfires may be defined as uncontrolled fire that significantly burns in wildland vegetation, often in rural areas. Wildfires can start from natural causes, such as lightning, but they are usually caused by humans, such as campers or hikers who did not put out their campfires properly.

The consequences of wildfires are determined by the fact that it completely eliminates or degrades all sorts of biodiversity that is present in the original position. In more simple words, wildfires are harmful to storing biodiversity in any region.

The density of vegetation and other biodiversity is compactly found in deciduous forests. So, the activity of wildfires may greatly impact the forests of deciduous.

Therefore, the correct option for this question is A.

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If there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. Explain your answer.

Answers

This graph shows the relationship between anaerobic respiration, also called fermentation, and temperature. Temperature is charted along the x-axis from negative twenty degrees Celsius to positive sixty degrees Celsius. The y-axis shows amount of fermentation in percentages from zero to one hundred percent. At negative twenty degrees Celsius, the amount of fermentation is at zero. At positive five degrees, the amount of fermentation has increased to 40, and at fifteen degrees the amount of fermentation is 50. At 25 degrees the amount of fermentation is 85, and at 35 degrees the amount of fermentation peaks at 100. The fermentation amounts decrease steadily from 100 at 35 degrees down to zero at 60 degrees.

Answer:

Sudden changes in the temperatures and sudden drop in pressure conditions led to how we see the present present atmosphere and suggest the evolution of cyanobacteria.

Explanation:

During the earth's primitive stages, the planet was devoid of oxygen and had an unstable atmosphere mostly composed of natural or greenhouse gases. These gases tended to be blown out from the center due to the weak gravitational pull of the earth and blown away from the sun's solar storms. When the atmosphere cooled and temperatures dropped to the point where the dust started to from and after which the multi-celled life emerged from the oceans in form of blue-green algae as cyanobacteria that did not need oxygen and used carbon and present gases to build up oxygen. Which further set the ground for the evolution of other autotrophs and planets of vascular nature.

Organisms from the Kingdom Planta are found throughout the environment around us. Mosses are members of this kingdom.

Which organisms belong to the Kingdom Planta?

Choose all answers that are correct.

A.
mushrooms

B.
redwood trees

C.
seaweed

D.
daisies

E.
yeast

Answers

I think it's A, C & D. But I'm not quite 100% sure.

Answer:

I think it's B. and D. I'm 98% sure.

Explanation:

Which organism is most specialized? A. Bacteria B. Unicellular algae C. Cat D. Ant

Answers

The answer would be (C.cat) because For the cat has the most advanced biological system, whereas the unicellular algae and bacteria are microscopic in size, and while the ant does have a system and is a multi-cellular organism, the cat has a much more advanced biological system with many more functions and organs. 

Hope it helps! 

Answer:cat

Explanation:

glycolysis provides a cell with a net gain of

Answers

Glycolysis breaks down glucose and forms pyruvate with the production of two molecules of ATP. The pyruvate end product of glycolysis can be used in either anaerobic respiration if no oxygen is available or in aerobic respiration via the TCA cycle which yields much more usable energy for the cell.

A cell receives a net gain of two molecules of ATP during glycolysis, the first step of cellular respiration. ATP, the main form of energy used by cells, is important for many cellular functions.

In the process of glycolysis, one glucose molecule is split into two pyruvate molecules, which are then phosphorylated at the substrate level to produce four molecules of ATP. However, the initial step of glycolysis uses two ATP molecules, so there is a net gain of two ATP molecules. Two molecules of NADH (nicotinamide adenine dinucleotide), which can be employed in the electron transport chain to produce additional ATP during aerobic respiration, are also produced by glycolysis in addition to ATP.

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Animals are consumers and they eat other organisms or even produce their own food, like plants.


Is this try or false

Answers

This is true because other organisms are lower in the food chain

can you accurately determine an genotype by observing its phenotype?

Answers

Yes. We can determine an genotype by observing it's phenotype by a "Test Cross".

If we cross between Homozygous recessive plant with dominant one, we can tell from the results of cross, that dominant individual is Homozygous or Heterozygous,.

Hope this helps!

Which of the following DNA sequences will result in the amino acid sequence –pro-phe-tyr-?

Answers

the answer that I got is B

Answer:

The correct answer would be : GGGAAAATG DNA sequence.

Explanation:

Protein sequence is formation is occurred by the transcription and translation which include DNA to mRNA sequence which is complimentary in base nitrogenous bases to the DNA sequence.

mRNA sequence translate into amino acid sequence in triplet codes for every three nitrogenous mRNA sequence. Proline is coded by CCC/CCU/CCG/CCA among option that is complimentary to the GGG. For the phenylalanine which is code by UUU and UUA complimentary of AAA/AAT and tyr stop codon is coded by UAA/UAG which code by ATC/ATT.

Thus, the correct answer is :  GGGAAAATG DNA sequence.

What characteristics do most adult fungi and plants share?

Answers

They are both eukaryotic
Final answer:

Adult fungi and plants share characteristics like being sessile, having stem-like and root-like structures, and being multicellular eukaryotes. Both can reproduce asexually and sexually. However, fungi are heterotrophic and have cell walls made of chitin, whereas most plants are autotrophic and have cellulose-based cell walls.

Explanation:

Adult fungi and plants share some characteristics due to their historical classification together, although fungi are now known to be more closely related to animals. Both fungi and plants are generally sessile, meaning they largely stay in one place, and they both have structures that can be considered stem-like and root-like, with fungi having a mycelium in the soil similar to root systems in plants.

Moreover, both fungi and plants are multicellular eukaryotes, signifying they have complex cellular structures with a nucleus and other membrane-bound organelles. In terms of reproduction, some fungi can reproduce both asexually and sexually, similar to plants who have a life cycle alternates between a multicellular haploid organism and a multicellular diploid organism.

However, it's essential to note key differences. Fungi are heterotrophic, absorbing nutrients from their environment, while most plants are autotrophic, producing their own food via photosynthesis. Furthermore, the cell walls of fungi are primarily composed of chitin, while plants' cell walls are made of cellulose.

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How do multi-cellular organisms develop?
A.
Cell differentiation - start from a single cell and as the cells divide they become specialized
B.
They all start as skin cells
C.
Organisms have the same number of cells all the time.

Answers

a is the answer because a single cell divides

Which of the following statements is NOT true?

A) It is important to preserve farmland because it moderates the temperature of urban areas.
B) It is important to preserve farmland because it provides area for urban expansion.
C) It is important to preserve farmland because it provides crops and fruits to support urban and rural populations.
D) It is important to preserve farmland because it provides an important oxygen source for urban areas.

Answers

A) It is important to preserve farmland because it moderates the temperature of urban areas.

I think

Choose each of the following that would be an example of a pollution situation that would contribute to non-point source pollution.

A. improper use of fertilizers on lawns
B. factory waste water discharge into a river
C. disposal of chemicals on roadways
D. smoke stack emissions from a power plant
E. leaky oil pans on automobiles ...?

Answers

Answer:

The correct answer are the options: A,C and E

Explanation:

Hello!

Let's solve this!

Pollution from non-point sources will be increased through the options:

A. improper use of fertilizers on lawns, C. disposal of chemicals on roadways, and E. leaky oil pans on automobiles.

These are the three correct options.

What is a substance in plant sources that cannot be digested that is 5 letters

Answers

I believe it is "fiber."

Which describes a relationship when calculating the energy of a photon?

The energy of the photon is directly proportional to frequency.
The energy of the photon is inversely proportional to frequency.
As the energy of the photon increases, Planck’s constant increases.
As the energy of the photon increases, Planck’s constant decreases.

Answers

The energy of the photon is directly proportional to frequency. 

'cause when frequency increases, it's energy also increases

So, option A is your final answer!

Hope this helps!

Correct answer: A). The energy of the photon is directly proportional to frequency.  

A photon is a quantum of electromagnetic radiation, and quantum is the smallest unit of quantity. Thus the photon is the smallest unit of light. The energy is directly proportional to the frequency of the photon and inversely proportional to wavelength.

It means higher the frequency of photon greater will be its energy and lesser will be its wavelength.


   


Why is the jaw of a dogfish underslung? what disadvantages does it have? ...?

Answers

The underslung jaw of a dogfish helps with capturing prey. However, it limits bite strength and may hinder feeding on larger prey.

Enhanced Prey Capture: The underslung jaw allows the dogfish to protrude its mouth forward and downwards.

This makes it easier to engulf prey, particularly when pursuing smaller, agile fish and other aquatic organisms. The protruding jaw aids in quick and efficient prey capture.

Improved Suction: The design of the underslung jaw creates a vacuum-like effect when the dogfish opens its mouth, which helps in drawing prey into its mouth.

This is especially valuable when targeting fast-moving or slippery prey items.

However, this jaw structure does come with certain disadvantages:

Reduced Bite Strength: The underslung jaw limits the dogfish's ability to deliver powerful bites. This is because the force generated during biting is not as effectively transmitted to the jaws due to the jaw's position.

This may make it less effective at breaking through hard shells or bones of larger prey.

Limited Prey Size: The underslung jaw may restrict the size of prey that a dogfish can consume. Larger prey items might be difficult to accommodate in its mouth and may not fit within the jaw structure.

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Which of the following is a part of the cell theory?
a. All cells contain a nucleus
b. Organs are the basic units of life
c. New cells arise spontaneously on their own
d. New cells are produced from existing cells
2. When using a light microscope to view a cell she obtained from scraping under her fingernails, Mrs.
Wolfinger notices that the cell lacks a nucleus; therefore, Mrs. Wolfinger concludes that the cell must be a
type of ______ cell.
a. Animal
b. Prokaryotic
c. Eukaryotic
d. Plant
3. The organelle responsible for breaking down and recycling macromolecules is called
a. mitochondria
b. lysosome
c. ribosome
d. cytoskeleton4. The solid purple arrow is pointing to a cell organelle that is responsible for storing the DNA. What is the
name of this organelle?
a. Golgi apparatus
b. Endoplasmic reticulum
c. Nucleus
d. Ribosome
5. The dashed blue arrow is pointing to a collection of tiny organelles that are responsible for making
proteins. What is the name of this organelle?
a. Golgi apparatus
b. Endoplasmic reticulum
c. Nucleus
d. Ribosome8. In osmosis, water moves across a membrane from a solution of
a. Low concentration to a solution of high concentration until both solutions are isotonic
b. High concentration to a solution of low concentration until both solutions are isotonic
c. Low concentration to a solution of high concentration until all of the water is on one side of the
membrane
d. High concentration to a solution of low concentration until all of the water is on one side of the
membrane
9. An animal cell that is placed in a hypertonic solution will _________ because water will move _______ the cell.
a. burst, into
b. burst, out of
c. shrink, into
d. shrink, out of
10. Compared to small cells, large cells have more trouble
a. moving needed materials in and waste products out.
b. dividing.
c. producing daughter cells.
d. storing needed materials and waste products.

Answers

1: D
2: B
3: B
4: C
5: D
8: A
9: D
10: A

3 terms used to describe organisms such as algae

3 terms describe organisms such as herbivorous fish

3 terms used to describe organisms such as small carnivorous fish

3 terms used to describe organisms such as large carnivorous fish

Answers

3 terms used to describe organisms such as algae

Organisms such as algae are described as producers, autotrophs, or phytoplankton. Herbivorous fish are known as herbivores, primary consumers, or grazers. Small carnivorous fish are called secondary consumers, predators, or small piscivores, while large carnivorous fish are termed tertiary consumers, apex predators, or large piscivores.

Three terms used to describe organisms such as algae include producers, autotrophs, or phytoplankton when they are free-floating. These terms indicate that algae are capable of producing their own food through photosynthesis and are essential components of aquatic food webs.

Herbivorous fish can be described with terms such as herbivores, primary consumers, or grazers. These terms suggest that these fish feed primarily on plant material, such as algae or aquatic plants, to obtain their energy and nutrients.

Small carnivorous fish could be described as secondary consumers, predators, or small piscivores. These fish consume smaller organisms, often other fish or aquatic invertebrates, as their primary food source.

Large carnivorous fish can be labeled as tertiary consumers, apex predators, or large piscivores. Such descriptors indicate these fish are at the top of their food chain and prey on other fish or large aquatic fauna.

Why is the freezing of water called a physical change?

Answers

Water freezing into ice is a physical change because the hydrogen and oxygen molecules that make up the water stay the same, despite the change in state from liquid to solid. A physical change is simply a change in the material's physical properties, such as shape or phase.
Final answer:

Water freezing is a physical change because it involves a transition in the state of matter, from liquid to solid, without altering the substance's basic nature. Physical changes are typically reversible, as in the case of water changing to ice and then back to water.

Explanation:

The freezing of water is called a physical change because it involves a change in the state of matter, from liquid to solid, without altering the fundamental composition or identity of the substance. In a physical change, substances merely change their forms but not their internal structures. Water, for example, may change from a solid (ice) to a liquid (water) or a gas (steam) but it still remains H2O. Physical changes are usually reversible. For instance, frozen water (ice) can revert back to its liquid state when heat is applied.

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The water cycle is also known as

Answers

The waters cycle is also known as the hydrologic cycle

Three requirements of an efficient respiratory system

Answers

respiratory surface must be moist so gasses can diffuse across cell membranes
cells lining respiratory surface are thin to optimize gas fusion
respiratory surface are must be large to allow for adequate gas exchange

Which statement is not true of grasses?

They are resistant to extreme temperature.
They are the most widely distributed flowering plant.
They include grains.
They are similar to succulents.

Answers

d) Grasses are not similar to succulents because they lack adaptations like fleshy leaves for storing water. Grasses can tolerate extreme temperatures, are widely distributed, and include many important grains. They primarily use wind pollination to reproduce.

The statement that is not true about grasses is that d)  they are similar to succulents. Grasses are not similar to succulents because succulents have evolved to survive in arid environments with features like thick, fleshy leaves and shallow roots to store water and reduce transpiration.

They are resistant to extreme temperature: Many grasses can withstand a range of extreme temperatures, enabling them to thrive in various climates.They are the most widely distributed flowering plant: Grasses are found nearly everywhere on Earth, making them one of the most widely distributed groups of flowering plants.They include grains: Grasses include important cereal grains such as wheat, rice, barley, and corn which are staple foods globally.

Grasses are significant in terms of pollination since they primarily rely on wind pollination to reproduce. They produce large amounts of fine pollen transported by the wind, facilitating wide distribution and stability of the species.

Which organisms are made up of many different groups of specialized cells?

A. Multicellular
B. Prokaryotic
C. Unicellular
D. Bacterial

Answers

A.) Multicellular organisms are made up of many different groups of specialized cells


Hope this helps!

Answer:

multicellular

Explanation:

Everything in the physical universe, left to itself, moves to a _________ state of entropy or disorder???????

Answers

The answer is : Everything in the physical universe, left to itself, moves to maximum entropy.

The greater the entropy, the less available the energy; applies to most of physics; human behavior is not predictable however.

Hope this helps

another name for cell division is the

Answers

M phase, or mitosis. 

(You don't need to know this for your course but more properly cell division could also refer to meiosis or binary fission.)
--------
mitosis: cell replicates, produces 2 daughter cells

cytokinesis: the 2 new cells split completely and new membranes form

Which part of a lab report would list the steps for completing the experiment?

procedure

purpose

question

Answers

Hi , the answer is procedure.

Gametes that are the same in size and shape is known as _____.

Answers

Answer:

Isogametes

Explanation:

Gametes or sex cells are cells produced by sexually reproducing organisms used in their process of reproduction. Gametes produced by a male and female parent of the same species can either be morphologically similar or different i.e. in size and shape. Gametes that are similar in size and shape are generally called ISOGAMETES.

Isogametes have no structural distinction as opposed to their anisogametes counterpart i.e. both male and female are structurally identical. This kind of gametes are produced in some fungi and algae species. When isogametes fuse, the process is regarded as ISOGAMY.

Which kind of tissue sends messages from the brain to the rest of the body?

A) epithelial
B) muscular
C) connective
D) nerve

Answers

D. the nervous system or nervous tissue

Is a virus a living thing?

Answers

yes because it moves and makes its way into the lungs

What might happen to a person whose nervous sand endocrine systems fail to maintain homeostasis?

Answers

Answer:

Disrupt the internal stability and may cause death in severe cases

Explanation:

The endocrine system is very essential to maintain homeostasis in our body. It is so because at cellular level all the activities are initiated, controlled and regulated by the hormones released by the endocrine system. Any imbalance in the hormone release or failure of endocrine system can dismantle the internal stability and functioning of body organ and may even cause deaths in extreme cases.  

A person that is a carrier has what combination of alleles?

Answers

Carriers usually have the recessive versions of the allele . That means that they could be Healthy but Carriers -Gg- ( assume G is an allele for a specific protein ) or they could be unhealthy , yet still being carriers -gg-
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