Answer:
B
Explanation:
because cells are stored within it
Explain how the structure of a mature sieve element is related to its function?
Answer:
.
Explanation:
.......................
The scientific method generally begins when a scientist makes _____.
Answer: an observation
Explanation:
Where do NADP+ and ADP produced in the Calvin cycle go?
Answer:
I think NADP+ and ADP go to Photosythesis ll to fix carbon into sugars. hope this helps.
Explanation:
What muscle contracts and relaxes when you inhale and exhale?
a. tricep
b. lung
c. diaphragm
d. bicep
Answer:
c.
Explanation:
diaphragm contracts and relaxes. you may try it now at the very moment lol
Please write down the correct name for each layer of the earth in the space below. EX - A: ________, B: _________,
Answer:
A: crust, B: mantle, C: outer core, D: inner core.
Explanation:
Do you learn this in 6-7th grade
GUYS PLEASE HELP THIS IS THE LAST QUESTION I NEED TO PASS, please and thank u :)))
option 2. sexual reproduction
Answer:
sexual reproduction
it is the production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).
Describe how temperature and salinity affect the solubility of gases in the surface ocean
Answer:
The solubility of gases such as oxygen and nitrogen depends upon the ocean water's temperature and salinity. As the temperature of the ocean water increases, the solubility of these gases decreases. The solubility of carbon dioxide is greater than the other gases because of its ability to react with ocean water.
Please Help Make Sure you explain your answer i will be marking brainliest to the first person who is correct:)
SCIENCE....
Answer:
the answer would be D deep ocean to trench.
Explanation:
because trenches are the deepest part of the ocean and the deeper you go the higher the pressure
The products of cellular respiration are used as reactants in photosynthesis.
O False
O True
Answer:
true
Explanation:
PLEASE HELP!!! Which capability do scientists think evolved as a result of the separation of
interior spaces from exterior spaces in protobionts?
A. The ability to carry out unique chemical reactions
B. The ability to separate different functions into different organelles
C. The ability to link amino acids as dipeptides
D. The ability to produce offspring
Answer:
The answer is A
Explanation:
WILL MARK BRANLIEST PLS HELP
What would be a disadvantage of asexual reproduction for an organism?
A.
If one member has a genetic disease, then all members of the population could get the disease.
B.
It allows for rapid population growth.
C.
Asexual reproduction creates more mutations than sexual reproduction.
D.
It creates organisms with a variety of traits.
Answer:
I think its A
Explanation:
Answer:
A
Explanation:
Asexual is basically making a clone or mini version of yourself. They would get all the characteristics you'd have. So if the main plant is sick it will get there baby sick
Plsss help I will give brainlest Section 1 - Question 19
Diploid plants have two sets of chromosomes. Polyploid plants have more than two sets of chromosomes, are often targer, and have more desirable characteristics. To create polyploid plants, plant breeders can
treat diploid plants with a chemical that prevents the separation of sister chromatids during mitosis. Resulting cells that have any partial chromosome sets, even if in addition to one or more complete chromosome
sets typically do not survive this process
It a diploid plant ce treated with such a chemical goes through a single round of mitosis, what is the MOST LIKELY genetic composition of the resulting cells that survive?
А
These cells will be haploid, each having one complete set of chromosomes.
B
These cells will be triploid, each having three complete sets of chromosomes.
С
These cells will be tetraploid, each having four complete sets of chromosomes
These cells will be octaploid, each having eight complete sets of chromosomes.
To produce a tetraploid plant, the alkaloid colchicine is applied to the terminal bud of a branch. All the cells in the developing branch will be tetraploid (4n) with four sets of chromosomes. This includes cells of the stem, leaves, flowers and fruit. Gametes (egg and sperm) produced by a flower on this tetraploid branch will be diploid (2n) with two sets of chromosomes. A flower on the normal diploid (2n) branch will produce haploid (n) gametes containing one set of chromosomes.
Stages of mitosis in the formation of tetraploid cells. The original mother cell is diploid (2n). During anaphase the chromatids separate and move to opposite ends of the cell. Colchicine causes the dissolution (depolymerization) of protein microtubules which make up the mitotic spindle in dividing cells. This leaves the cell with twice as many single chromosomes (four sets rather than two). When this cell divides, each of the two daughter cells will have fours sets of chromosomes, a total of eight chomosomes per cell. [Note: Spindle poisons such as colchicine are used to prevent tumor cells from dividing in certain chemotherapy treatments.]
The botanical term parthenocarpy refers to the development of the ovary of a flower into a fruit without fertilization. [The biological term parthenogenesis refers to the development of an egg without fertilization.] Fruits that develop parthenocarpically are typically seedless. Some seedless fruits come from sterile triploid plants, with three sets of chromosomes rather than two. The triploid seeds are obtained by crossing a fertile tetraploid (4n) plant with a diploid (2n) plant. When you buy seedless watermelon seeds, you get two kinds of seeds, one for the fertile diploid plant and one for the sterile triploid. The triploid seeds are larger, and both types of seeds are planted in the same vicinity. Male flowers of the diploid plant provide the pollen which pollinates (but does not fertilize) the sterile triploid plant. The act of pollination induces fruit development without fertilization, thus the triploid watermelon fruits develop parthenocarpically and are seedless. Most bananas purchased at your local supermarket came from sterile triploid hybrids. The fruits developed parthenocarpically and are seedless.
B
Some cells, such as nerve cells, are programmed to always remain in the Gap 1 state. If nerve cells engage in mitosis, a disruption of the cell cycle has occurred. The growth of additional nerve cells can lead to
A the creation of a virus.
B the development of cancer.
C a change in sex.
D a loss of DNA.
URGENT PLEASE
Which of the following illnesses is caused by a virus?
common colds
diabetes
strep throat
malaria
SEND HELP ASAP PLEASE IM BEGGING
Why can inbreeding be potentially harmful to populations? Check all that apply.
1. Negative traits, such as diseases, may build up in the population.
2. Useful traits may be “bred out” of the population.
3. Genetic diversity of the population is increased.
4. The population becomes weaker and less resilient.
The correct answers are 1, 2 and 4
Cells which are found within the active organs in the human body would have the most chloroplasts true or false
The human body's active organs contain cells with the highest concentrations of chloroplasts: FALSE
In Human body, are there no chloroplasts.
We are descended from a line of animal cells that didn`t own chloroplasts or permit them to withstand digestion once they ate plants. Those few that controlled to develop and divide, maintaining chloroplasts could now no longer be as green as animals with out chloroplasts that absolutely had been capable of consume different organisms.
Also, as pointed out, our surfaces are a whole lot too small to take in sufficient mild to offer the non-stop shops of power we want to keep frame temperature and guide our absolute requirement for gasoline for the feature of an excessive order energetic mind or muscle groups that permit transportation and lengthy distance running, key functions of being human.
If we had been engineered to have chloroplasts in our pores and skin and survived in continuously difficult environments and survived, with much less and much less captured food, we'd evolve to be desk bound and now no longer want our muscle groups now no longer outrun all different creatures on the earth and now no longer rely on an power ingesting mind, to the volume that photosynthesis could be sufficient, we'd have reduced in size and simplified our our bodies to axrudementary vestigial and turn out to be like avenues fly lure possibly or forgo ingesting altogether.
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Which planet’s orbit around the Sun is most nearly circular?
Answer:
Venus has most nearly circular orbit.
Answer:
venus
Explanation:
in our solar system Venus and Neptune have circular orbits
During the light-independent reactions, the calvin cycle requires nadph and atp. Where does the cell get these molecules?.
The energy carrying molecules are made in stroma where the calvin cycle takes place.
What function do ATP and NADPH serve in light-independent reactions?In photosynthesis, light energy is utilized to cause the photosystem I molecule to make ATP by transferring electrons from chlorophyll to nicotinamide adenine dinucleotide phosphate (NADPH) (Figure 5). In the light-independent processes of photosynthesis, this metabolic energy is utilized to fixation CO2 (Calvin cycle).
The calvin cycle or light independent reaction of photosynthesis happens in the stroma of the Chloroplast. It has certain enzymes that work with NADPH and ATP.
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100 POINTS!
Which of the following terms in Biology is best illustrated by the image below?
A. Selective Permeability
B. Independent Assortment
C. Fluid Mosaic Model
D. Facilitated Diffusion
Answer:
The answer is Selective permeability
Explanation:
Answer:
Selective Permeability
Explanation:
4.
decesing.
In 2019, the energy usage per person in India was 6,924 kWh and the energy usage per
person in the United States was 79,897 kWh. How many times greater is the energy
usage per person in the United States than in India?
11.5 many times greater is the energy
usage per person in the United States than in India.
let us consider x times 6,924 kWh consumses in india which is equivalent to united sates.the energy usage per person in India =6,924 kWhthe energy usage per person in United States =79,897 kWhso, energy usage in the United States÷energy usage in the India × x
x =79,897 kWh ÷ 6,924 kWh
x = 11.5
killowatt hours Unit of electrical energy,which is 1000 W of power used for 1 hwatts is the unit for measuring electrical power. It defines the rate of energy consumption by an electrical device when it is in operationTo know more about energy visit :
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Smokers are ___ times more likely to die from ___ than non-smokers
Answer:
There are 2 possibilites.
Explanation:
1. 17, bronchitis and emphysema
2. 23, cancer of trachea/lung and bronchus
Which molecule would most likely require a transport protein to cross the plasma membrane of a red blood cell?.
Glucose (C₆H₁₂O₆) is a large molecule which cannot cross the plasma membrane on its own therefore, it requires transport proteins (GLUT channels) through which they diffuse through membrane. Thus, the correct option is A.
How does materials transport through membrane?Materials transport through the plasma membrane through different ways which include active transport and passive transport. Active transport requires energy (ATP) for the transport of materials against the concentration gradient.
In passive transport, energy is not required as material moves in the direction of concentration gradient. The molecules can diffuse on their own through the plasma membrane and require transport proteins if the molecules are large in size or polar in nature. Facilitated diffusion has channel proteins and carrier proteins which helps in the transport of molecules across the membrane.
GLUT is a channel protein specific for the transport of glucose across the plasma membrane. Glucose is a large molecule hence requires a transport protein for diffusion across membrane.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Which molecule would most likely require a transport protein to cross the plasma membrane of a red blood cell?
A. C₆H₁₂O₆
B. H₂O
C. CO₂
D. O₂
What two factors are considered when determining the risk assessment for air pollutants?.
When determining the risk assessment for air pollutants, two factors that are considered are exposure assessment and hazard assessment.
Exposure Assessment: This involves evaluating the extent and duration of human exposure to air pollutants. It considers factors such as the concentration of pollutants in the air, the duration of exposure, and the frequency of exposure.
Hazard Assessment: This involves assessing the inherent toxicity or harmful effects of the air pollutants. It considers the potential health effects associated with specific pollutants, such as respiratory irritation, cardiovascular problems, cancer risks, or neurotoxicity.
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The formula CaCl, represents the compound
Answer:
It represents the compound calcium chloride
Explanation:
Organs work together as components of
Answer: Organs are grouped into organ systems, in which they work together to carry out a particular function for the organism. For example, the heart and the blood vessels make up the cardiovascular system.
Place the following molecules in order starting from the smallest
The molecules that are given below from the smallest to the lowest will be glucose, protein, disaccharides, and starch.
A molecule simply refers to the smallest particle that can be found in a chemical element. It should be noted that the molecule has the chemical elements exactly as the elements or compounds.Molecules consist of one or more atoms. Examples of molecules include CaO (calcium oxide), NaCl (table salt), From the options given, it should be noted that the nanometer of glucose is the smallest when it's compared to others. Starch has the largest nanometer. A nanometer is a unit of measurement.In conclusion, the correct option from the smallest will be glucose, protein, disaccharides, and starch.
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HELP DUE AT 4! THIS DEPENDS ON MY GRADE okay here is the model now I need help w the question: How many males in this model show the trait? A. One B. Seven C. Three D. Four
Answer:
C. Three
Explanation:
If trypsin were to be placed in an acidic environment, how would it function? How do you know?
Answer:
If trypsin is in an acidic environment, it will decrease its function, since its optimum pH is 8.
Explanation:
Trypsin is an enzyme responsible for break peptide bonds, thus hydrolyzing proteins into peptides and amino acids. This enzyme is secreted by the pancreas and poured into the duodenum —an alkaline environment— where it acts.
Since the optimal pH for trypsin to fulfill its function is 8, if the enzyme were placed in an acidic environment it would decrease its function. This is because enzymes work under specific pH and temperature conditions, and changes in these conditions affect enzymatic activity.
How do trees improve water quality?
a.
Tree roots anchor soil in place, preventing runoff.
b.
Water is filtered as it passes through the root systems of trees.
c.
An adult tree can store nearly 250 gallons of water.
d.
All of the above
Please select the best answer from the choices provided
A
B
C
D
Answer/Explanation:
D
Trees improve water quality by slowing rain as it falls to the Earth, and helping it soak into the soil. ... Having a buffer of forestland by streams and riverbanks does more than just filtering the water.
Answer:
b. Water is filtered as it passes through the root systems of trees.
Explanation:
on edge
mention any two points that should be remembered for regular check up