Answer:
Cell membrane and vesicle
Is hydrogen an atom or molecule
Explain how and why different parts of a plant are sinks for the translocation of sucrose at different times of the year in a country where there are season, such as Russia
Answer:
The sucrose is transported around the plant in phloem vessels. It needs to be able to reach all cells in the plant so that the sucrose can be converted back into glucose for respiration. The movement of sucrose and other substances like amino acids around a plant is called translocation .
Belowground organs of plants (e.g. roots and rhizomes) are sinks during plant growth since they cannot perform photosynthesis. Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing
If air pollution increases enough to begin reducing the amount of solar radiation to
reach the surface of the earth,
A. the ocean's thermocline would be directly affected
B. the salinity of the surface of the ocean would not be affected
C. the ocean would no longer be layered
D. more oxygen could be stored in the ocean
Answer:
options c.....
...........
During transcription, an RNA molecule is formed
a. that is complementary to both strands of DNA.
b. that is complementary to neither strand of DNA.
c. that is double-stranded.
d. inside the nucleus.
Answer:
c. that is double stranded
Phenylketonuria (PKU) is a genetic disease caused by the inability to break down the amino acid phenylalanine. If untreated it leads to severe mental disabilities. PKU is due to a recessive allele. Assume that the US population is in Hardy-Weinberg equilibrium with respect to this gene. In the US the PKU rate is 1 out of every 10,000 babies born. What percent of the US population have no alleles for PKU
Answer:
Therefore, 98% of the US population have no alleles for PKU
Explanation:
The Hardy-Weinberg equilibrium states that the amount of genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
The Hardy-Weinberg equilibrium is expressed quantitatively using a mathematical equation known as the Hardy-Weinberg equation. the equation is given below:
p² + 2pq + q² = 1
also, p + q = 1
Given a pair of alleles, S and s with A dominant and a recessive
where p is the frequency of the dominant allele in the population,
q is the frequency of the recessive allele in the population,
p² represents the frequency of the (SS) dominant genotype,
q² represents the frequency of the (ss) recessive genotype,
2pq represents the frequency of the heterozygous genotype
From the given question,
q² = 1/10000 = 0.0001
q = 0.01
from p + q = 1
p = 1 - 0.01 = 0.99
p² = 0.98
Therefore, 98% of the US population have no alleles for PKU
WRONG ANSWERS ONLY!!! What is coastal runoff and what does it affect
Answer:
The sky.
(Purposely wrong.)
Of the parts of the electromagnetic spectrum listed below, which has the shortest wavelength?
A.
visible light
B.
infrared radiation
C.
radio waves
D.
X-rays
A student had medical testing and discovered that her white blood cell count is lower
than normal. Which of her systems are most likely functioning improperly?
A. nervous and immune
O B. circulatory and urinary
O C. circulatory and immune
O D. nervous and respiratory
Answer: b
Explanation: Viral infections that momentarily impair the function of bone marrow are the most common cause of a reduced white blood cell count. Certain defects with impaired bone marrow activity that are present at birth (congenital). Diseases of the bone marrow, such as cancer.
Explain why the cell membrane is the brain of the cell, as opposed to the nucleus.
Answer:
because it holds the information needed to conduct most of the cell's functions.
Cell membrane controls the transport of molecules across the cell and its external environment, Thus, it is called as the brain of the cell.
Why is cell membrane important?Cell membrane regulates most of the cellular activities through the property of selective permeability.
It is responsible for maintaining the cellular equilibrium through influx and efflux of ions and molecules.
There are various receptors present on the cell membrane which regulates the vital biochemical processes taking place in the body.
Cell membrane functions in the cell-cell recognition and cell signalling through various receptors.
Cell membrane is important in regulating body homeostasis. It offers the protective environment to the cell.
Control and regulation of activities is processed through brain.
Therefore, cell membrane is considered as the brain of the cell.
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Which is required for a bacterial cell to replicate its DNA?
a. tRNA
b. DNA polymerase
c. Rna stand with an origin of replication
Answer:
c
Explanation:
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which one contains many organelles with different functions prokaryotic cell eukaryotic cell
Answer:
Eukaryotic Cell
Explanation:
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
true or false the fertilized ovary develops into a seed
Answer:
true
Explanation:
I've done this it's TRUE
In order for a compound to be considered organic, what 2 elements must the compound contain
Answer:
Organic compounds contain carbon and hydrogen (which may be replaced by other atoms).
Describe the ecosystem that you live in. What other living creatures do you share it with? 5-8 sentences.
Answer:
i live in Terrestrial ecosystems ( land-based) &, i shared it with frogs,fishes,birds,snakes,insects,turtles....
Explanation:
The stems of bamboo, a tropical grass, can grow at the phenomenal rate of 0.3 m/day under optimal conditions. Given that the stems are composed almost entirely of cellulose fibers oriented in the direction of growth, calculate the number of sugar residues per second that must be added enzymatically to growing cellulose chains to account for the growth rate. Each D-glucose unit contributes ~0.5 nm to the length of a cellulose molecule.
Answer:
Approximately 6944 glucose residues are added enzymatically per second
Explanation:
Cellulose is the main structural polysaccharides in plants. It is composed of unbranched glucose monomer units linked to each other by beta 1-4 glycosidic bonds.
The cell wall and stem of plants cells are composed of cellulose fibers. They provide rigidity and support to the plant.
In the given bamboo plant, the enzymatic addition of glucose units to the growing cellulose fiber chains results in the phenomenal growth rate of the bamboo stem.
Since each glucose unit contributes ~0.5 nm to the length of a cellulose molecule, number of glucose units required for daily growth is calculated as follows:
0.5 nm = 10⁻⁹
0.3 m/0.5 x 10⁻⁹ m = 600000000 units of glucose per day
Number of seconds in a day = 24 * 60 * 60 = 86400 seconds
Number of glucose residues added per second = 600000000/86400
Number of glucose residues added per second = 6944.4 glucose molecules per second
Therefore, approximately 6944 glucose residues are added per second
What is true of all body cells except sex cells?
Each cell type carries chromosomes and genes that identify it as that specific type of cell. For example, skin cells have different chromosomes and genes than muscle cells.
While each cell in the body contains the same number of chromosomes, each cell type has different genes along those chromosomes.
While each cell type in the body contains the same kinds of genes, they are organized on different chromosomes depending on the cell type.
Each body cell contains the same number and kinds of chromosomes for that organism. The chromosomes contain the same number and kinds of genes for that individual.
Explanation:
Each cell type carries chromosomes and genes that identify it as that specific type of cell. For example, skin cells have different chromosomes and genes than muscle cells.
PLEASE PLEASE PLEASE HELP AND GIVE EXPLANATION TOO!
FOR EXAMPLE: THE TYPE OF HEAT TRANSFER IS RADIATION BECAUSE...
*I ALREADY WROTE THE TYPE OF TRANSFER DOWN I JUST NEED EXPLANATIONS*
1.) Candle - The type of heat transfer here is radiation because...
2.) Tea Kettle & Mugs - The type of heat transfer here is conduction/convection because...
3.) Lamp - The type of heat transfer here is radiation because...
7.) Toaster - The type of heat transfer here is conduction/convection/radiation because...
9.) Radiator/Heater - The type of heat transfer here is radiation because...
Explanation:
1. a burning candle enits radiation in the form of heat and light, this is because of it emission of energy in rays or waves
2.tea and kettle mugs transfer heat by the actual movement of matter. heat leaves the nug as the currents of the steam and air rise. This also emmits heat to the surrounding area.
3.Radiation refers to the emission of energy in rays or waves. In this, a lamps energy is emmiting rays of heat the expands its heat and light to the surrounding area.
7. the coils in the toaster heat the air which heats the toast. A toaster uses infrared radiation because when you put food in the coild glow red.
9. this is beacuse, low wavelength, non visable infared radiation can carry heat directly from warm objects to cooler objects. It emmits and expands its heat energy to the surrounding area and other objects.
Drag each statement into the appropriate bin depending on whether the event occurs in the lumen of the small intestine, in a small intestine epithelial cell, or in a lacteal.
a) Lipase breaks triglycerides down into monoglycerides and fatty acids.
b) Monoglycerides and fatty acids are reassembled to form triglycerides.
c) Chylomicrons are transported in this structure to veins.
d) This structure contains lymph.
e) Chylomicrons leave this structure by exocytosis.
f) Triglycerides are coated with phospholipids, cholesterol, and proteins to form chylomicrons.
Answer:
The correct answer is -
Lumen: a
Epithelial cell: b, e, f
Lacteal: c, d
Explanation:
The given statements are the events that occur in the particular location among the lumen of the small intestine, small intestine epithelial cell, or in a lacteal. the correct events and locations are grouped together:
in the lumen of the small intestine
a. The breakdown of TGA into monoglycerides and fatty acids takes place with the help of lipase.
In a small intestine epithelial cell:
b. Monoglycerides and fatty acids are form triglycerides again.
e. Chylomicrons leave this structure by exocytosis
f. TGAs are coated with proteins, cholesterol and phospholipids, to make chylomicrons.
in a lacteal:
c. Chylomicrons are transported here
d. Lymph is present here.
The image above depicts a triangular piece of land, ACD, with two roads, segments BE and CF, cutting across the property. The owner wishes to add a fence along segment BC. The entire triangular piece of land is an isosceles triangle in which sides AC and CD both equal 9 miles. Segment CF represents the perpendicular bisector of the 13 mile-long base. If triangles BKC and FKE, formed from the intersection of the two roads, are congruent and segment AE is equal to side CD, what is the length of segment BC?
Select one:
A. 2.5 miles
B. 3.0 miles
C. 3.5 miles
D. 4.0 miles
Answer:
A. 2.5 miles
Explanation:
I completed it n got 100 lol
An artist is making a circular stained glass window with a diameter of 10in. The stained glass costs$4.40 per square inch
Answer:
44
Explanation:
If the mother's actual genotype is IA i and the father's blood type is IB i, what is the probability of their child having AB blood?
Answer:
1/4
Explanation:
punnett squares!
The process of mitosis deals with?
Will mark brainliest
Answer: Gametes
Explanation:
Answer:
Gametes
Explanation:
When a cell divides by way of mitosis, it produces two clones of itself, each with the same number of chromosomes. When a cell divides by way of meiosis, it produces four cells, called gametes.
With the above paragraph one can conclude that mitosis deals with gametes.
difference between chlorenchyma and parenchyma
Answer:
Explanation:
Parenchyma
1. They have thin cell wall.
2. Their cell wall is made up of cellulose.
3. They are unspecialized tissues.
4. The are found in soft part of the plant.
5. They undergo photosynthesis and can stored the food and also play important role in gaseous exchange.
6. There are spaces between the cells.
Collecchyma.
1. They are thick cell walls.
2. Their cell walls are made up of cellulose and lectin.
3. They are specialized tissues
4. They are found in plants leaves and petioles.
5 The do not undergo photosynthesis but act to give mechanical support to plants.
6. They have little intercellular spaces.
Parenchyma and collecchyma are both tissues found in plants..
Burning fossil fuels for energy releases harmful emissions into the air. Which health concern is most likely related to these emissions?
A) Increases in blood cancers such as leukemia
B) Increases in skin disorders from absorption
C) Increases in respiratory illnesses such as asthma
D) Increases in digestive disorders from contaminated food
Answer:
Explanation:
its either c or b sorry if it is wrong
Answer:
C
Explanation:
If the harmful emissions are being released into the air, then the most logical answer would be an increase in respiratory illnesses auch as asthma.
It cannot be B or C because they specify that the disordera come from absorption and contaminated food, respectively.
It is most likely not A either.
What is homeostasis?
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{What is \underline{Homeostasis}?}[/tex]
[tex]\large\text{Homeostasis is the self-processing in the biotic structured which}\\\large\text{tended to perpetuate (maintain) rationally while it is modified}\\\large\text{its conditions that can be prototypical for surviving}[/tex]
[tex]\large\text{Homeostasis has.... }\\\bullet\large\text{ Controllable center(s)}\\\bullet\large\text{ Effectors}\\\bullet\large\text{Variables (aka Homeostasis)}\\\bullet\large\text{ Receptors}[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
[tex]\large\text{Here is what each of your features of homeostasis means}\downarrow[/tex]
Show a competition between organisms in this food chain below
HELP ASAP PLZ!!!!
Answer:
8tvitcrixuzu3duecitvurvih igb
What are four economically important sediment resources?
Answer: lithogenous, biogenous, hydrogenous, and cosmogenous
Explanation:
What percent of energy is transferred from the sun to the level indicated? (3 points)
50 percent
100 percent
90 percent
10 percent
Answer:
It can
be explained with the help of ten percent law which
states that only 10 percent of the total energy available
at any trophic level is passed on the higher trophic level .
Most of the energy is lost as heat or is used in the
process of cellular respiration.
Explanation:
DeShawn wants to conduct a scientific study on how land-clearing in his city may have affected the quality of the water. Which source of information would be most valuable to his research? A. a survey given to the people of the city ten years ago on the possible effects of land-clearing on water B. the opinion of a neighbor who has some knowledge on how to test city water for impurities C. a recent city government report with data regarding how clean the water supply is D. a recent political article stating that the water of the city should be filtered and cleaned Reset Next Question
Answer: i think that the answer is C
Explanation:
The source of the information that should be most valuable to the research should be option C.
What is research?
It means that the development of the new knowledge should be done or there is the usage of the existing knowledge for generating the new conceptsm methods, and understanding. It involved the synthesis and the analysis of last research for resulting the new or the creative outcomes.
So based on this, the option c should be correct.
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TRUE or FALSE: Dolphins are found in tropical areas, highly developed
swimmers and have highly advanced echolocation. *
True
False
Answer:
true
Explanation:
the amswer is true have a nice day