Answer:
The correct answer is ''proteins.''
Explanation:
Transport phenomena are essential in living beings, either to carry a hydrophobic molecule through an aqueous medium (transport of oxygen or lipids through the blood) or to transport polar molecules through hydrophobic barriers (transport through the cell membrane). Biological transporters are always proteins. Proteins are capable of carrying out specific functions such as the selective transport of molecules, or certain enzymatic reactions, among others. Membrane proteins can be peripheral or partially or totally integrated into the membrane, being, generally, globular or fibrous. Its activity is essential for the maintenance of transmembrane gradients. Thanks to membrane proteins, the exchange of molecules such as nutrients or waste products takes place, as well as the reception of external signals. Among its functions are channel-forming: Integral proteins arranged in the membrane in such a way that they give rise to the formation of a pore or channel, usually hydrophilic. These pores or channels allow the entry and exit of certain substances from the cell.
1. Discuss how the study of fossils provides strong evidence for evolution. (13.2 and 13.3)
Answer:
in fossils we see homologous structures that suggest a common ancestor.
By looking at the bones of the arms and comparative anatomy we see the similar structure and function that is retained.
When looking at other animals like birds we see Analogous structures that look similar but have a different function (flying).
Finally we see Vestigial structures which are structure that no longer function as they once were used for. An example of this is the coccyx (tail bone in humans) compared to tails in dogs, cats, monkeys, etc.
Explanation:
What are involved in synthesis of food
Answer:
Answer. The process of synthesis of food in green plants is called photosynthesis.
This process takes place in the cells containing the green pigment chlorophyll. The raw materials for this process are water, carbon dioxide and sunlight.
what is the importance of protease to life
7) Rank the following milk samples from most expected bacterial growth to least: Be sure to explain your rankings. (0.5 points) a. Pasteurized milk stored at 4*C for one week b. Pasteurized milk stored at room temperature for 4 days c. Autoclaved milk
Answer:
b. Pasteurized milk stored at room temperature for 4 days
a. Pasteurized milk stored at 4*C for one week
c. Autoclaved milk
Explanation:
Autoclaved milk has least expected bacterial growth because Autoclaved sterilization kills all the bacteria present in it so little chance of bacterial growth. Pasteurized milk stored at room temperature for 4 days has more bacterial growth due to favorable environment whereas little growth occur in the Pasteurized milk which stored at 4*C for one week due to less favorable environment.
Which answer best compares the end result of a cell that goes through meiosis to that of a cell that goes through mitosis?
A) The cell that goes through meiosis will have the same number of daughter cells as the one that goes through mitosis.
B) The cell that goes through meiosis and the one that goes through mitosis will both produces haploid cells.
C) The cell that goes through meiosis results in haploid cells, while the one that goes through mitosis produces diploid cells.
D) The cell that goes through meiosis will produce half as many daughter cells as the one that goes through mitosis.
Answer:
A
Explanation:The cell that goes through meiosis will have the same number of daughter cells as the one that goes through mitosis.
A
They will have the same number
Please help if can (>^ <)ゞ
The Pioneer 10 space probe was launched in 1972 to explore the asteroid belt and Jupher. The probe continued traveling way from the Solar System and into deep space in 2003, when it was over seven billion miles from home, is power supply failed und a
contact was lost Just before the power falure, data from the spacecraft indicated a reduction in its velocity that was too rapid to be explained by the Sun's rational pull alone. Which of the following is the best scientific conduion based on the unexpected data?
A-The spacecraft was slowed by a force other than gravity
B-The instruments measuring Pioneer 10's velocity malfunctioned
C- The law of universal gravitation is incorrect and should be revised
D-The data collected regarding the Sun's gravitational force is incorrect
In eukaryotes, all the reactions of photosynthesis occur in various membranes and compartments of the chloroplast.
a. True
b. False
Answer:
The correct answer is - a. true.
Explanation:
The chloroplast is surrounded by inner and outer membranes. These membranes help in separating the inner compartments and structures from the cytosol Inside the chloroplast. These various membranes and compartments play various roles during photosynthesis.
For instance;
a) stroma- the Calvin cycle takes place in the stroma
b) thylakoid membrane - the light reactions takes place here
c) envelope membranes- the inner and outer membranes of the chloroplast
Describe the basic characteristics of organisms, including prokaryotic and eukaryotic, unicellular and multicellular, autotrophic and heterotrophic, and sexual and asexual reproduction, that classify organisms into the currently recognized kingdoms.
(Do NOT make a list. Write it as a paragraph!)
Answer:
Prokaryotes are those organisms which lack true nucleus and membrane bounded organelles while eukaryotes have true membrane bound nucleus as well as membrane bound organelles.
Unicellualr organisms composed of only one cell while multicellular organisms consists of large number of cells.
Heterotrophic organisms get their food from other organisms while autotrophic organisms synthesize their own food b with the help of photosynthesis.
sexual reproduction involves meiosis for production of gametes then fertilization and dvelopment while in asexual reproduction cells simply divide by mitosis and develops a new organism.
these ar the basic characteristics used for classifcation. plants are autotrphic multicellular sexually or asexually reproducing organisms, while animals are hetertrophic, multicellular and can also reproduce sexually as well as asexually.
Explanation:
A snake species that has migrated from the mainland to a small island eats banana slugs instead of lizards and mice, its usual diet. Which statement best explains this change in behavior?
1. The genotype that affects food choice is not isolated to a single phenotype.
2. Instinctual food choice by snakes is not related to genotypic flexibility.
3. Diet is exclusively controlled by snake genetics, not by nature.
4. Gene expression for mainland snakes is rigid and confined to one phenotype.
nevermind, I don't know
as the slide is magnified the letter e is visible true or false?
because when magnified it makes it close so you can see better yup
What type of energy continuously produces heat and light?
Answer:
Nuclear fusion.
The blood vessels that have the smallest diameter and consist of a single layer of simple squamous epithelial
cells so they may facilitate the exchange of substances are
Answer:
Capillaries
Explanation:
Capillaries are one of the three major blood vessels in humans (the other two being; veins and arteries). They are known to connect the arteries and the veins together in the circulatory system. Capillaries majorly function in the exchange of substances e.g oxygen, nutrients between the blood and tissues.
Due to their role in exchanging substances via diffusion, capillaries contain the simple squamous type of epithelial tissue, which helps them perform this function. Furthermore, capillaries are the smallest in diameter and most abundant in number of all blood vessels.
Question 17 of 20 :
Select the best answer for the question.
17. Why do plants need magnesium?
O A. Magnesium is a component of chlorophyll.
B. Plants can't function or use other nutrients without it.
O C. Plants need magnesium for root growth.
O D. It's a macronutrient.
O Mark for review (Will be highlighted on the review page)
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Why did the Vancouver Fraser Port Authority select Maplewood Flats as a restoration area to
offset their Centerm Expansion Project (CEP), rather than another location in Burrard inlet?
Select one:
a. Because it offers the greatest improvement in environmental conditions, sufficient to
match the damage caused by CEP, for the least expense.
b. Because it is the most species diverse site in the Burrard inlet
c. Because it is the most polluted site in the Burrard inlet
d. Because it has been identified as a significant anthropological and wildlife conservation
area
Answer:
a. Because it offers the greatest improvement in environmental conditions, sufficient to match the damage caused by CEP, for the least expense.
Explanation:
The businesses are required to restore the land to their original condition once they are with their business activities. The business operations often causes damage to the site and nearby land, for this reason restoration is mandatory in many countries. Vancouver Fraser Port Authority selects Maplewood Flats for the restoration activity because it offers the restoration at cheap cost. This will save company's cost and the land will be to its original condition with least possible damage to environment.
WILL MARK BRAINLIEST
Hypothesis: If snails are present, then they will release carbon dioxide which the Elodea will take in.
What is the control to test this hypothesis?
A: Elodea plants in the dark
B: Elodea plants in the light
C: Elodea plants with snails
D: Elodea plants without snails
E: bromthymol blue without plants or snails
ONLY ONE ANSWER CAN BE CHOSE
water recycling??
give some sites for report writting..?
Answer genmill.com
Explanation:
where does pyruvate as intermediate take place in photosynthesis? plz explain also thanks
Answer:
Pyruvate take place after the process of glycolysis.
Explanation:
Pyruvate as intermediate take place in the process of photosynthesis after glycolysis process. One glucose molecule is converted into two molecules of pyruvate. This pyruvate molecule then converted into acetyl CoA, which is a two-carbon molecule. A molecule of coenzyme A is a very important reactant for this reaction, which produces a molecule of carbon dioxide and reduces a NAD+ to NADH.
Produces energy for the cell by converting glucose into ATP.
cellular respiration.
Animals that live and feed inside the bodies of other organisms. (A P R A T I S E S)
Answer:
parasites
Explanation:
live and feed inside other organisms
Which of the following are reasons that Mendel used pea plants in his genetic experiments?
Select all that apply.
A
Peas were the only thing available at the monastery.
B
Pea plants grow fast.
C
Pea plants are easy to grow.
D
Pea plants have several distinct traits that vary.
Answer:
I think option B and C is correct answer
Mendel used pea plants as they were easy to grow and exhibit several distinct traits that vary.
Mendel's ExperimentMendel's experiment was accomplished with the help of Pisum sativum, that is, the garden pea to study inheritance.
Mendel chose pea plants as they are easy to grow.
They also possess many visible features, which may vary.
These features comprise seed color, seed form, flower color, pod color and form, placement of flowers and pods on the stems, and length of the stem. Each of the feature has two common values.
Thus, the correct answers are options C and D.
Find out more information about Mendel's experiment here:
https://brainly.com/question/21478588
Not sure what to do here
Answer:
NOPE
Explanation:
NOPE
Please answer ASAP!!
Answer:
traits or features that take effect
A stem cell is:
A. a specialized cell that can divided limitlessly
B. a specialized cell that can divide limitlessly but can't differentiate
C. an unspecialized cell that can't divide limitlessly nor differentiate into specialized cells
D. an unspecialized cell that can divide limitlessly and differentiate into specialized cells
Answer:
A stem cell is A. a specialized cell that can divided limitlessly
Explanation:
sorry if i keep answering ur questions im j good at this stuff lol
Answer:
D.
Explanation:
Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types. Stem cells are unspecialized.
I hope this helps! ^^
igneous rock determined 25 million year old plate movement transported 100,000 meters. How fast is plate moving?
Answer:
0.004 m/yr.
Explanation:
Hello!
In this case, since the velocity of any object is computed by dividing the travelled distance by the elapsed time, we obtain:
[tex]V=\frac{distance}{time}\\\\V=\frac{100,000m}{25,000,000yr}\\\\V=0.004m/yr[/tex]
It means that the plate moves 0.004 m every year.
Best regards!
URGENT PLZ ANSWER!!!!
Compare the structures of the cat and chicken embryos in the images above. Which characteristics do the species share as embryos that they do not share when they are fully developed? Select all that may apply.
a) Both animals have tails as embryos
b) Both animals have similar upper limb buds as embryos
c) Both animals have feathers as embryos
d) Both animals have structures similar to gill arches as embryos
e) Both animals use their upper limbs for the same function
Answer:
D
Explanation:
can you help with this
Thank you
Answer:
B. II and III
Explanation:
hope it helps
similarties and differences between the three fungi divisions
Explanation:
It's little bit short but it will help you and you can get full mark hope it will help you! Have a nice day. ^_^
A laboratory technician was working on some blood samples she noticed that if the samples were left to stand for five minutes before placing them in the centrifuge, they could not be separated properly, as they started to solidify. Use your knowledge of the functions of the parts of blood to explain this observation please help I have 20 mins left
Answer:
ijeje9w0qj19q0qo119191911919
Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services
Explanation:
all of the choices are ecosystem services
Haley knows that plants and animals are made up of many different materials. She wants to know how these materials can cycle through an ecosystem.
What question could Haley ask to learn more about this topic?
A.
What kind of organism is the most popular at Haley's school?
B.
What happens to the materials that make up a living organism after it dies?
C.
What will happen to a sunflower plant if it is grown in a dark closet?
D.
What kind of plant should Haley buy her mom for her birthday
Answer:
B. What happens to the materials that make up a living organism after it dies.
Explanation:
An ecosystem can be defined as the natural living habitats of both living and non-living organisms.
Ecosystem services such as plant pollination, nutrient cycling and water purification are essential services that are being provided by the ecosystem. These services are really very vital, important and useful for the sustenance of life, both for humans, plants and animals because they enhance social welfare.
In this scenario, Haley knows that plants and animals are made up of many different materials. She wants to know how these materials can cycle through an ecosystem. Therefore, the question Haley could ask to learn more about this topic is; what happens to the materials that make up a living organism after it dies?
Basically, the material that make up a living organism decomposes after it dies and are then used up as nutrients by plants growing on the soil.