What challenges would you expect scientists to face when growing plants in space? What challenges will the astronauts have with meeting their own energy needs?

Answers

Answer 1

Answer:

the challenges they would expect to see is the plants not having water or air

planted need water to have photosynthesis and since theres no water in space and little to no atmosphere the plants would suffocate


Related Questions

n which environment would mineral formation caused by high pressures and high temperatures most likely occur?

Answers

Answer:

when the flood or landslide flows theremnants of plants and animals are taken to the sea and ocean then due to high pressure and temperature they forms fossils in sedimentary rocks and due to the anaerobic condition under the fosdils gets decayed and it forms the layer of mineral. so we can say thatminerals are formed in anaerobic condition under sedimentary rocks.

How is the top layer of the ocean different than the deepest layer
A the top layer is colder and doesn’t receive sunlight
B the top layer receives sunlight and is warmer
C the top layer is warmer and doesn’t receive sunlight
D the top layer is colder and receives sunlight

Answers

Answer:

B the top layer receives sunlight and is warmer

Explanation:

Answer:

B. the top layer receives sunlight and is warmer.

 What is the most likely explanation for how speciation occurs?
A. It occurs by more than one method.
B. It occurs by gradual changes.
C. It occurs only by geographic isolation.
D. It occurs only by natural selection.

Answers

Answer:

The answer is (C) geographical isolation

Explanation:

Speciation is most likely to occur when populations become geographically isolated from one another, and come to inhabit environments that differ significantly from one another.

Choose the description of an event that does NOT occur during the cross bridge cycle. Group of answer choices Energized myosin heads bind troponin. ATP hydrolysis allows for cross bridge formation. ADP is released at the end of the power stroke. A new ATP binding causes cross bridges to release.

Answers

Answer: A myosin head binds to which molecule to form a cross bridge? ... Excitation-contraction coupling is a series of events that occur after the events of the ... performs a power stroke, then binds to ATP in order to detach and re-energize.

Explanation:

At a continental-continental convergent boundary, _____. a, both continental plates are subducted b. one continental plate is subducted below the other c. folded mountains are formed d. fault-block mountains are formed

Answers

Answer:

I dont get it???

Explanation:

Answer:

I think both continental plates are subducted

Which of the following are biomolecules? (check all that apply). *
carbohydrates
lipids
proteins
nucleic acis

Answers

Answer:

all of them

Explanation:

answer:E all of the above

What best describes the behavior of nonconservative elements in seawater?

Answers

The given question is incomplete due to missing options, however, the options for the question as follows:

A. Nonconservative elements are reactive in seawater and have a long residence time.

B. Nonconservative elements are reactive in seawater and have a short residence time.

C. Nonconservative elements are non-reactive in seawater and have a short residence time.

D. Nonconservative elements are non-reactive in seawater and have a long residence time.

Answer:

The correct answer is option C.

Explanation:

Non conservative components are components that enter the ocean water and have little concentration in the sea and show spatial variations. These components have short home time that is short replacements time and they are non responsive.

Constituents, for example, phosphate, nitrate, and different supplements, and broke up oxygen, carbon dioxide, and so on are non-conservative on the grounds that their concentrations are later altered by chemical reactions in the ocean.

Thus, The correct answer is option C.

Like with living primates, we are able to definitively distinguish catarrhines from platyrrhines in the fossil record by what feature

Answers

Answer:

The structure of their noses.

Explanation:

Catarrhines are distinguished from platyrrhines by several traits but the main distinctive feature between them, is the structure of their noses. This forms the basis of their names.

Platyrrhines are characterized by laterally-placed, rounded nostrils or flat-nosed while catarrhines have narrow, downward-facing nostrils or hooked-nosed.

Another distinguishing feature include their dental formulation which is 2.1.2.3 in catarrhines and 2.1.3.3 in platyrrhines.

The skull structure of catarrhines have frontal bone which make contact with the sphenoid bone unlike the platyrrhines.

Generally, catarrhines are much bigger in size than platyrrhines.

What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2? a = 5, b = 4, c = 2 a = 5, b = –4, c = –2 a = –4, b = 5, c = –2 a = 4, b = –5, c = –2

Answers

Hey there! :)

Answer:

The 3rd choice. a = -4, b = 5, c = -2.

Explanation:

Rearrange the quadratic equation given into the form 0 = ax² + bx + c:

0 = 5x - 4x² - 2 --> 0 = -4x² + 5x - 2

The corresponding coefficients for the a, b and c values are:

a = -4

b = 5

c = -2.

The given quadratic equation must be first rearranged in the form ax2- bx-c. From this, we can find the values of a= -4, b= 5, and c= -2

How can a quadratic equation be defined?

Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared. It is also called quadratic equations. The general form of the quadratic equation is ax² + bx + c = 0.

Quadratic equations are commonly used in situations where two things are multiplied together and they both depend on the same variable. For example, while working with the area, if both dimensions are represented in terms of the same variable, you use a quadratic equation.

Throwing a ball, shooting a cannon, diving from a platform, and hitting a golf ball are all examples of situations that can be modeled by quadratic functions.

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List the functions of proteins

Answers

Answer:

Growth and Maintenance.

Causes Biochemical Reactions.

Acts as a Messenger.

Provides Structure.

Maintains Proper pH.

Balances Fluids.

Bolsters Immune Health.

Transports and Stores Nutrients.

Jessica weighs 125 pounds. She rode a bike at 17mph for 25 minutes. What is the calorie cost of this activity?
a. 185 calories
b. 178 calories
c. 180 calories
d. 190 calories
e. 188 calories

Answers

Answer:

b. 178 calories

ok so 17mph is 0.57 weight/min

so what were going to do is multiply 125 times 0.57 which is 7.125

then multiple that answer by 25 mintues: 7.125 x 25 = 178.12...etc

now if we round this up it stays as 178!

PLEASE HELP. DONT ANSWER IF YOU DONT KNOW. Name any three specifications that reduce carbon dioxide expenditure and promote biodiversity.

Answers

Answer:

A carbon footprint is the total greenhouse gas (GHG) emissions caused by an individual, event, organization, service, or product, expressed as carbon dioxide equivalent.[1] Greenhouse gases, including the carbon-containing gases carbon dioxide and methane, can be emitted through the burning of fossil fuels, land clearance and the production and consumption of food, manufactured goods, materials, wood, roads, buildings, transportation and other services.[2]

In most cases, the total carbon footprint cannot be calculated exactly because of inadequate knowledge of and data about the complex interactions between contributing processes, including the influence of natural processes that store or release carbon dioxide. For this reason, Wright, Kemp, and Williams proposed the following definition of a carbon footprint:

Specifications that reduce carbon dioxide expenditure and promote biodiversity are as follows:

1. Provide tree plantation through urban afforestation.

2. It has low concentration of carbon dioxide as plants absorb this gas and release oxygen

3. By promoting fruits and shade for the neighborhood.

What is Carbon Dioxide?

Carbon dioxide is defined as the chemical compound which is made up of molecules each containing a carbon atom bonded twice to two oxygen atoms and is found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation which acts as a greenhouse gas.

This is a minor component of the Earth's atmosphere at about 3 volumes in 10,000 employed by plants in the combustion of carbon-containing material, in fermentation, and in the respiration of animals and in the photosynthesis of carbohydrates.

Thus, specifications that reduce carbon dioxide expenditure and promote biodiversity are as follows:

1. Provide tree plantation through urban afforestation.

2. It has low concentration of carbon dioxide as plants absorb this gas and release oxygen

3. By promoting fruits and shade for the neighborhood.

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To which domain does the animal kingdom belong? Bacteria Archaea Eukarya

Answers

Answer:

The correct answer is Eukarya.

Explanation:

The kingdom Animalia is one of four Kingdoms in the Domain Eukarya. This domain is further subdivided into the Kingdoms Protista, Plantae, Fungi, and Animalia.

Answer:

Eukarya is it

Explanation:

what must happen before meiosis can begin A. the cell splits into four parts B. the chromosomes must replicate C. four haploid cells are produced D.DNA must duplicate four times

Answers

Answer:

B. the chromosomes must replicate

Answer: DNA replicates and forms retreads

Explanation:

Eggs and sperm are examples of _____. zygotes somatic cells diploid cells gametes

Answers

answer: gametes .....

Answer:

gametes

Explanation:

gradpoint

Carolus Linnaeus Group of answer choices developed theories of natural selection. was a proponent of evolutionary change. established a binomial system of classification for plants and animals. was a supporter of Charles Darwin. opposed all notions of fixity of species.

Answers

Answer:

1- was a proponent of evolutionary change.  

2- established a binomial system of classification for plants and animals

Explanation:

Carolus Linnaeus was a Sweden naturalist that is considered to be the creator of the modern taxonomy. He created a dichotomic system to classify species, in which species are fixed entities without phenotypic modifications across time, this concept being contrary to Darwin's ideas. Linnaeus published his nomenclature botanical system in the book "Species Plantarum", which is nowadays a reference book for plant nomenclature.

Which shows the most direct path that carbon can take through the carbon cycle? plant ® atmosphere ® animal animal ® plant ® atmosphere plant ® animal ® atmosphere atmosphere ® animal ® fossil fuel

Answers

The most direct path that carbon can take through the carbon cycle is: plant ---> atmosphere ---> animal.

What is the carbon cycle?

The carbon cycle refers to the various processes by which carbon flows through the ecosystem.

The carbon cycle involves processes which remove carbon and other processes which release carbon into the atmosphere.

The most direct path that carbon can take through the carbon cycle is plant ---> atmosphere ---> animal.

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Answer:

The answer is C) plant ® animal ® atmosphere

Explanation:

Research has discovered that for some individuals one challenge to maintaining weight loss is that after losing weight lipoprotein lipase activity in their adipose tissue is .

Answers

Answer: Low.

Explanation:

Lipoprotein lipase or LPL is an enzyme that hydrolyzes triglycerides of low density lipoproteins found in food, and breaks them down to free fatty acids and glycerol. Then they are released into muscle and fat tissue. Without this enzyme, the fat particles would accumulate in the blood. Particularly, lipoprotein particles called chylomicron transport dietary lipids from the intestines to other locations in the body. So these complex, lipids and chylomicron, accumulate in blood.

Fats are a type of nutrient obtained from food. It is essential to eat some fats, although it is also harmful to eat too much. The fats in food give the body the energy it needs to work properly. And, during exercise, the body uses the calories from the carbohydrates that have recently been eaten, but after 20 minutes, exercise then depends on the calories from fat to continue.

So, if the activity of this enzyme is high, the fat in the food is broken down and the person would not gain weight (always considering that there is a correct diet and exercise) On the other hand, if the activity of the protein is low, large amounts of fat accumulate in the blood.

1.

behavior is inherited and



2. When a deer hears a sound in the forest, such a

then bolts through the bushes. This is an examp

3. Mating rituals or displays can be very complex

4. When animals fight and one wins and one subm

This means that one animal (the winn

behavior is used to intimidate other an

baring teeth or growling.

Answers

Answer:

Behavior is inherited in many animals which helps them to survive.

Explanation:

When animals fight with one another and one wins. This means that one animal (the winner) behavior is used to intimidate other. Two deer fight each other in order to show dominance over each other and to impress the female deer. The winner deer will be the leader and also mate with the females of the group. This is a type of behavior which is inherited in animals through genetics is called instincts.

which type of research study compares disease rates among population groups?

Answers

Answer:

Epidemiological

Explanation:

Epidemiology compares disease rates among population groups, and attempts to identify related conditions or behaviors.

Answer: Epidemiological studies

why was an Archea considered as a prokaryote ​

Answers

Answer:

Archaea is prokaryotic because it doesn't have a nucleus, nor any membrane-bound organelles. The reason why Archaea is different from Bacteria is it is more prominent, most of them are extremophiles.

because they are composed of cell which doesn't have nucleus and other some cell organelles and also considered as incomplte cell.

why did mendel use pea plants in his experiments A. they produced quickly B. they are all male C. they have no alleles D. they are haploid organisms

Answers

Answer:

They produce quickly

Explanation:

Mendel chose pea plants for his experiments because they are easy to raise, have many offspring per mating, can fertilize themselves and have varieties in genotype and phenotype that are easily observable. These characteristics make pea plants ideal in the study of genetics and heredity.

There are two properties of phospholipids that affect how tightly they pack together: the length of the hydrocarbon chain and the number of double bonds. The degree of packing, in turn, influences the relative mobility of these molecules in the membrane. Which of the following would yield the most highly mobile phospholipid (listed as number of carbons and number of double bonds, respectively)?
(a) 24 carbons with 1 double bond
(b) 15 carbons with 2 double bonds
(c) 20 carbons with 2 double bonds
(d) 16 carbons with no double bonds

Answers

Answer:

Explanation:It’s d

The mechanism by which proteins synthesized in the cytosol are imported into the mitochondrial matrix is different from the mechanism by which proteins enter the nucleus, yet the two mechanisms do share some features. Indicate whether each of the following statements applies to nuclear import, mitochondrial import, both, or neither. Sort each statement into the appropriate bin.
1. The polypeptide to be transported into the organelle has a specific short stretch of amino acids that targets the polypeptide to the organelle.
2. The imported protein enters the organelle through some sort of protein pore
3. The pore complex consists of more than two dozen proteins and is large enough to be readily seen with the electron microscope.
4. ATP hydrolysis is known to be required for the translocation process
5. The signal sequence is always at the olypeptide's N-terminus and is cut off by a peptidase within the organelle
6. The signal sequence is recognized
GTP hydrolysis is known to be required for the translocation process
7. There is strong evidence for the involvement of chaperone proteins polypeptide's N-terminus and isctand bound by a receptor protein inrequired for the translocation during translocation of the protein the organelle's outer membrane process.
Nuclear import Mitochondrial import Both Neither

Answers

Answer:

Nuclear import:

1. GTP hydrolysis is known to be required for the translocation process

2. The pore complex consists of more than two dozen proteins and is large enough to be readily seen through electron microscopy

Mitochondrial import:

1. ATP hydrolysis is known to be required for the translocation process

2. The signal sequence is always at the polypeptide's N-terminus and is cut off by a peptidase inside the organelle

3. There is strong evidence for the involvement of chaperones during the translocation process

4. The signal sequence is recognized and bound by a receptor protein in the organelles outer membrane

Both:

1. The polypeptide to be transferred into the organelle has a specific short stretch of amino acids that targets the polypeptide to the organelle

2. The imported protein enters the organelle through some sort of protein pore

Explanation:

Describe an additional hypothetical situation that illustrates the "use it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why more bone is present under these circumstances. Also, describe an additional hypothetical situation that illustrates the "lose it" portion of the use it or lose it principle. Be sure to describe the situation/behavior and explain why less bone is present under these circumstances.

Answers

The first step of bone remodeling is the deposition of new bone cell to the destroyed portion. This is for maintenance of healthy bones

For a strong healthy body you have to take exercise regularly. This will replace unhealthy bone cell.

If you dont use your bone for support weight it will result of bone loss.. this is a situation of called lose it..

Supposed you saw a small organism move across your book would you conclude that this organism was muticellular or unicellular?

Answers

Answer:

i would conclude it as a multicellular organism because i can see it as multicellular organism can only be seen and unicellular organism can only be seen in microscope.

hope u get that..

Answer:

multicellular

Explanation:

If I saw a small organism move across my book, I would conclude that the organism is multicellular. Multicellular organisms can be seen, unicellular organisms like bacteria cannot be seen through the naked eye.

What energy carrier molecules are produced by glycolysis

Answers

Answer:

"Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy"

Explanation:

Glycolysis | Boundless Biology - Lumen Learning

Which capillary would be least likely to allow substances to enter or exit the blood due to tight junctions that join the endothelial cells

Answers

Answer:

Those capillaries that have endothelial cells tightly attached have an increase in cell-to-cell junctions, such as desmosomal junctions that are poorly permeable to substances.

These capillaries generally function as conductors or collectors and not as permeabilizers like the pulmonary capillaries that are fenestrated and allow a high passage of substances and gases.

The capillaries are waterproof and prevent the passage of substances or fluids such as in the blood-brain barrier that is very selective

Explanation:

The blood-brain barrier is too selective since it is not favorable for the organism that many fluids, drugs, substances or chemical compounds enter the brain space.

This is the reason why the vessels are waterproof and why pharmacology was challenged to invent drugs that could cross this barrier since it was considered impossible.

An example is dopamine, which in parkynson's disease the levo group is added to dopamine, thus forming levodopamine as a product, this is the only way that the drug crosses the blood-brain barrier and can pass the impermeable barrier generated by capillaries with endothelial cells that are close to each other or closely linked

A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that
the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?
Height is affected by multiple pairs of genes on different chromosomes.
The alleles for tall height and short height are codominant.
The allele for being tall is dominant to the allele for shorter heights.
There are three alleles for height that demonstrate incomplete dominance.

Answers

Answer:

Height is affected by multiple pairs of genes on different chromosomes.

Explanation:

The height is a quantitative trait, it is a phenotypic feature that presents a continuous range of variation in the population. The cumulative effects of many genes and the environment produce a normal distribution bell-shaped curve when they are drawn, this being a characteristic of quantitative genetic traits. Examples of quantitative traits include, among others, height, metabolic rate and weight.

The student could use their graph as evidence to support the argument that "The alleles for tall stature and short stature are codominant."

What is a Codominant gene?

Codominant: Autosomal codominant inheritance is the condition in which the heterozygote has the characteristics determined by both alleles (dominant and recessive).

What is allele?

Allele genes are those that occupy the same locus on homlogous chromosomes and are involved in determining the same character.

With this information, we can conclude that the genes alleles of the students in this class are codominant.

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difference between plant and animal cyanide resistance respiration.

Answers

Answer:

The cyanide resistant respiration differs in plants as oxi­dation of reduced coenzyme continues even in the presence of cyanides.

Explanation:

The mitochondrial is the electrons through which the animals and plants perform the aerobic exercise and is blocked by the release of the cyanides that stops the activity and is known as cyanide sensitive respiration Plant mitochondria is different from the animal as they both have different oxidase system pathways. Cyanide resistant is responsible for the climacteric in fruits and for the generate heat in thermogenic tissues.
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