Answer:
1. The main physiological role of red blood cells (RBCs), or erythrocytes is to transport of gases (O2, CO2) from the lung to the tissues and to maintain systemic acid/base equilibria. In addition, RBCs are well equipped with antioxidant systems, which essentially contribute to their function and integrity.
2. In humans, it includes plasma (the liquid portion), blood cells (which come in both red and white varieties), and cell fragments called platelets. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.
3.Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
hope it will help u1 point
5.) No two organisms of the same species are exactly alike. This
may ____allow for some members of the species to______
if their environment suddenly (or gradually) changes.
What is the process through which materials move across the cell membrane
A osmosis
B diffusion
C mitosis
D meiosis
YO PLZ HELP MEH!!!!
3. _________ are vesicles that use oxygen to break down toxic substances in the cell.
a. Transport vesicles
b. Lysosomes
c. Peroxisomes
d. None of the above
What is the Law of Universal Gravitation and how did it differ from the understanding of the motion before Newton theorized it?
How do you think Newton’s discoveries help to pave the way for his Three Laws of
Motion?
Answer:
While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars. Brahe had collected a lifetime of astronomical observations, which, on his death, passed into Kepler’s hands. (Brahe, who had his own Earth-centered model of the Universe, withheld the bulk of his observations from Kepler at least in part because he did not want Kepler to use them to prove Copernican theory correct.) Using these observations, Kepler found that the orbits of the planets followed three laws.
Use the data table to complete the question
Visible light occurs along a continuum of different wavelengths. The datatable shows the wavelength in nanometers of four colors of visible light
Which color has the HIGHEST FREQUENCY?
Wavelength of Colors of Visible
Light In a Vacuum
Color Wavelength
(nanometers)
Red
700
Orange-Yellow
600
Green-Blue
500
Violet
400
A.Blue-Green
B.Red
C.Orange-Yellow
D.Violet
Answer:
A.Blue-Green
may be right answer
-_-
reactions of photosynthesis
Why Do Blood Cells Form Sickle Shapes?
Answer:
it is because of a mutation in the hemoglobin gene
Which statement about oogenesis is correct?
A. Diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body.
B. Two diploid secondary oocytes undergo meiosis II to form four haploid ootid cells.
C. Haploid secondary oocytes undergo meiosis I to form a haploid ootid cell and a polar body.
D. Haploid secondary oocytes undergo meiosis II to form a diploid ootid cell.
The statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.
What is Meiosis?Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. These daughter cells are genetically unique to the parental cells and are haploid in nature. Germ cells (gamete cells) are typically divided through this mode of cell division.
Oogenesis may be characterized as the process of female gamete formation including the formation of an oocyte from an oogonium followed by meiotic division. During the process of oogenesis, a haploid ootid cell and a polar body are formed with the help of meiotic division.
Therefore, the statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.
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Your friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim? Support your position with:
a description of a genetic mutation and
a scientific explanation of how a mutation may affect an organism such as a tomato, spinach, or strawberry plant.
Answer:
Explanation:
yes
Answer:
Answer:
Increased Bone Density found in humans which makes the human body stronger, as well as strenthening defense.
Mutations may affect tomatoes my increasing water retention
Explanation:
Explanation:
Pls help! Explain why blood pressure must decrease in the arterioles before entering the capillaries ahhhhh
this is because the blood flow slow through the capillaries to allow gaseous exchange. Plus the pressure is higher in capillaries because the diameter of the capillaries is smaller than arterioles
If an organism does not have a nucleus, has only one cell, and can survive in extreme conditions, into which domain would it be classified?
Question 8 options:
Domain Eukarya
Domain Archaea
Domain Bacteria
Give an example of a genetic factor determining the growth of an organism. Give an example of an environmental factor determining growth of an organism.
Explanation:
Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms.
Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.
Change to hypothesis
What effect does the water temperature have on solution rate?
As the temperature of the water increases so does the solution rate as the atoms gain more energy therefore there will be more frequent collisions.
#5 Which statement is true in regards to DNA mutations? *
Mutations can lead to positive adaptations in an organism
all mutations result in a change in protein formed
mutations are not present in unicellular organisms
all mutations are negative and lead to diseases
Answer:
Mutations can lead to positive adaptations in an organism
2.1) What are two differences between plant and animal cells?
Answer:
Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Answer:
plant cells have cell wall
plant cells have a single large vacuole
animal cells don't have cell wall
animal cell have many smaller vacuole
hope it helps
Use these when yall break up.
“the facts i convinced my friends you were attractive-“
“i lowered my standards for you and this is how you treat me?”
“yk im startin to understand why my friends laughed when i showed them you”
girllllll your gonna leave that man im tears !!!!!
I will remember these when I will not be single (Single life sucks)
9. Which food would you expect to have the lowest lipid levels?
a. Olives
b. Pistachios
c. Wheat crackers
d. Sesame seeds
The food expect to have the lowest lipid levels is sesame seeds. The correct option is d.
What is lipid?Lipids are hydrocarbon-containing molecules that serve as the foundation for the structure and function of living cells.
Lipids include fats, oils, waxes, vitamins (such as A, D, E, and K), hormones, and the majority of the cell membrane that is not made of protein.
Carbon, hydrogen, and oxygen are the same elements found in lipids as they are in carbohydrates.
Lipids, on the other hand, are primarily composed of hydrocarbon chains and contain fewer polar hydroxyl groups. As a result, most lipids are nonpolar hydrophobic molecules.
Sesame seeds are high in saturated fat (15%), polyunsaturated fat (41%), and monounsaturated fat (39%).
According to research, eating more polyunsaturated and monounsaturated fat than saturated fat may help lower your cholesterol and reduce your risk of heart disease.
Thus, the correct option is d.
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difference between animal cells and plants cells
Answer:
A plant cell have a vacuole, chloroplasts and A cell wall
Vacuole - Gives the cell shape
Chloroplasts - Contain a green pigment (turns the plant green) To do with photosynthesis.
Cell Wall - Holds the cell up and keeps it in a rigid structure.
Help me please!!!!!!!
4,3 of two the between difference the to sent PaulRegards1,2,4Ode3,
What do organisms get when Glucose is broken down?
Answer:
They get energy
how did the spread of homo-sapiens from Africa to other continents likely influence populations of other organisms
Answer:
it was before the continent drift the homosapiens travelling habitated the most parts of world
the diagram shown above illustrates the---- cycle.
Why is unprotected exposure of eyes to high infrade radiation dangerous?
Exposure to infrared light can heat the lens of the eye and produce cataracts over the long term.
How do stars generate light? Select the BEST answer.
A. Hydrogen fuses into helium generating a great deal of energy
B. The chemicals in the star glow giving off light
C. Chemicals burn to cause the light
Answer:
A. Hydrogen fuses into helium generating a great deal of energy
Brown eyes are dominant over blue eyes. Show the possible outcomes of offspring between a heterozygous brown-eyed male and a blue eyed female. Use the letter B
Where are chromosomes found in a cell?
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Explanation:
if humans run out of following resources, which resource would be most difficult to replace
Answer:
Petroleum
Explanation:
Like all fossil fuels, petroleum is a nonrenewable energy resource. This means that it is a resource that cannot be replaced as quickly as humans use up existing supplies. Humans face a problem because once petroleum reserves begin to run out, there won't be enough fuel to power all the automobiles in the world.
Check all of the BIOTIC factors in an ecosystem.
THE SUN
TREES
ANIMALS
PLANTS
Answer:
B.Trees C.Animals & D.Plants are all biotic factors
Explanation:
A biotic factor is a living factor on an ecosystem, the sun is an abiotic factor because it is nonliving.
I need help with the final question please
Answer:
1 in 4 so 25% ---------------
Can a species become extinct independent of a mass extinction event? How many species have to go
extinct for it to qualify as a mass extinction?
Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.
Explanation: