Oxygen is very essential for the survival of organisms. The component of blood enable oxygen from the environment to move from the lungs to cells of the body are red blood cells.
What are red blood cells?Red blood cells, also known as red blood corpuscles, haematids, erythroid cells, and erythrocytes.
These are the most prevalent form of cells of blood and the vertebrate's primary mechanism of supplying oxygen to body tissues through blood flow with the help of hemoglobin.
It has hemoglobin that helps for the transport of oxygen from lungs to cells of body.
Thus, the correct option is D.
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For what type of study does the United States Census Bureau assist scientists by completing research?
A) Demographic
B) Fertility
C) Oceanographic
D) Environmental
Below is a diagram illustrating how cells at the bottom of the early embryo are releasing chemicals to nearby cells:
Predict the end result of the process represented in the diagram.
Cell differentiation
Programmed cell death
Mitotic embryonic division
Transcription and translation
Answer:
The correct answer is - transcription and translation.
Explanation:
The chemical shown in the image which is released to the nearby cells is signaling molecules that interact play an important role to induce the change in the cell function as per the chemical signal molecule and internal condition.
Signal molecules bind to the receptor present on or in the cell and change confirmation to initiate the gene expression more specifically translation and produce the proteins that result in different cell functions.
Primary function of the signaling molecules is to start protein production in nearby activated cells.
Answer:
Cell Differentiation
Explanation:
Which organelles would a student include when constructing a model of a plant cell that would differentiate it from an animal cell?
Which statement describes the role of the organism indicated by the blue arrow in the food web?
A - A primary producer that recycles organic molecules from sunlight
B - A secondary consumer that obtains its energy from the consumption of animals
C - A primary consumer that obtains its energy from the consumption of animals
D - A secondary consumer that recycles organic molecules by breaking them down
Answer:
Producers bring energy into the ecosystem by making organic molecules from sunlight or chemical compounds.
Explanation:
Answer: A secondary consumer that obtains its energy from the consumption of animals
Explanation:
the explanation is... i got it right
What would happen if we didn't have subcutaneous fat
Answer:
What would happen if we didn't have subcutaneous fat?
Ans) For instance, while fat has been blamed for heart attacks, strokes,diabetes, and a host of other serious illnesses, researchers are finding that low fat levels may make us even more vulnerable to death from those conditions. In many studies, being overweight actually lowers morality from disease.
Hope it's helpful to u...The spongy material in the center of a bone is called the bone marrow.
True or False
I would say that is true.
Answer:
it is true
Explanation:
in the bone there are 3 layers the outer layer is made of thin membrane
the middle layer is smooth and hard
the inner layer looks like a sponge is very hard and strong and it protects the center of the bone marrow, which looks like a thick jelly
What is the definition of a Missionary
A religious community run by monks
Someone who prays five times a day
Christians who left home to convert foreign people to Chrissianity
A man or woman taking a pilgrimage to Mecca for their Hai
с
d
Answer:
Christian's who left home to convert foreign people to christianity
Explanation:
it was there mission
The original cell theory has been expanded upon since it was first developed to include further additions due to advances in research on the cell. Which statements were not in the original cell theory, but are further explained by the modern cell theory? Check all that apply.
All cells are similar in structure and function.
Cell contains hereditary information that is passed from cell to cell during cell division.
Living cells can be created from dead cells.
All cells perform similar metabolic activities.
Answer:
The Correct answer is
B. Cell contains hereditary information that is passed from cell to cell during cell division.
D. All cells perform similar metabolic activities.
Explanation:
Hope this helps!!!!!
The statements 'the cell contains hereditary information that is passed during cell division' and 'all cells perform similar metabolic activities' were NOT in the original cell theory.
The cell theory is a universally accepted biological theory initially developed by Matthias Schleiden and Theodor Schwann (1839).The original statements of the cell theory include:
The cell is the basic structural and functional unit of all organisms.All life forms are composed of cells.All cells derive from preexisting cells, which means that the origin of all organisms can be traced to a primitive ancestral cell.In conclusion, the statements 'the cell contains hereditary information that is passed during cell division' and 'all cells perform similar metabolic activities' were NOT in the original cell theory.
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compare the number of chromosomes in pumpkins to the number of chromosomes in humans.
PLEASE HELP ASAP!
Answer:
Humans: 46 chromosomes (23 pairs)
Pumpkins: 40 chromosomes (20 pairs)
The number of chromosomes in pumpkins to the number of chromosomes in humans is Humans: 46 chromosomes (23 pairs) and Pumpkins: 40 chromosomes (20 pairs)
What is the number of chromosomes in different animals?If a dog has 78 chromosomes in each of his cells, each set of DNA has two sets of chromosomes because dogs are a diploid species so it would be 78/2 and in each cell a dog with 78 chromosomes would have 39 molecules of DNA in each of his cells.
The final products of meiosis in males is four sperm cells and in females it is one ovum and three polar bodies. Thus, the final product of meiosis is four sperm cell in male and one ovum in female with three polar bodies. The main objective of meiosis is to produce gametes, the sperm and eggs, with half of the genetic character of the parent cell.
Meiosis has been defined as the process in which a single cell divides into two identical daughter cells and the process is known as cell division. Meiosis has a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes.
Therefore, The number of chromosomes in pumpkins to the number of chromosomes in humans is Humans: 46 chromosomes (23 pairs) and Pumpkins: 40 chromosomes (20 pairs)
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What is equilibrium?
Answer:In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
Explanation:
Answer:
Equilibrium means when the concentrations of reactants and products are in an unchanging ratio. Another way of saying this is that a system is in equilibrium when the forward and reverse reactions occur at equal rates.
Explanation:
i hope this helps
Complete the following sentence.
Forty-five percent of ____ ____ nurses work in intensive care units.
Answer: im not really sure buti believe that is registered.
Forty-five percent of registered nurses work in intensive care unit.
Answer:
critical care nurses
Explanation:
Explain how the heliocentric model has been modified with the help of telescopes and probes ?
Answer:
They collect more information.
Explanation:
The heliocentric model has been modified with the help of telescopes and probes because telescopes and probes collect more accurate information about the solar system and planets. Due to information collected from these instruments, scientists are able to modify the heliocentric model more accurately. So we can conclude that with the help of telescopes and probes, the heliocentric model has been modified.
Telescopes and probes gather more accurate data about the solar system and planets. Due to data collected from these instruments, scientists are able to modify the heliocentric model more accurately.
What is a heliocentric theory?
Heliocentrism is a cosmological model in which the Sun is assumed to lie at or near a central point while the Earth and other bodies revolve around it.
So we can conclude that with the help of telescopes and probes, the heliocentric model has been changed.
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A plant has been sprayed with a chemical that promotes abscisic acid and inhibits ethylene until the fruit has been exposed to artificial light (like light bulbs indoors). Explain what this would mean for fruits picked at a farm and then sold in stores.
Answer:
See the answer below
Explanation:
The first thing is that ethylene as a plant hormone primarily functions as a major driver of fruit ripening ahead of abscisic acid. Hence, a fruit that is unable to synthesize or prevented from synthesizing ethylene will not show any sign of ripening.
For, a plant sprayed with an ethylene inhibitor, its fruit will be prevented from ripening. However, if the synthesis of ethylene is stimulated by the exposure of the fruit to artificial light, the implication is that such fruit will appear ripened or otherwise depending on the store it is sold.
If the store has artificial light, in no time, ethylene production would be stimulated and ripening will commence. If otherwise, such fruit will not show any sign of ripening until it is purchased off the store and taken to a home adorned with artificial lights.
The alantic ocean grows in size due to a
It has grown in size due to global warming
answer quick!
Which statement best describes embryonic stem cells?
Embryonic stem cells are capable of self-renewal only.
Embryonic stem cells are capable of differentiation only.
Embryonic stem cells are capable of self-renewal and limited differentiation.
O Embryonic stem cells are capable of self-renewal and unlimited differentiation.
Answer:
Embryonic stem cells are capable of self-renewal and limited differentiation.
Explanation:
Answer:
✔ Somatic
stem cells are capable of
✔ self-renewal
, not differentiation.
✔ Embryonic
stem cells are capable of self-renewal and
✔ differentiation
.
✔ Amniotic fluid
stem cells are capable of
✔ self-renewal
and limited differentiation.
Explanation:
PLEASE HELP QUICK!!!!!! WILL GIVE BRAINIEST!!!!!!
5. The evidence for evolution by natural selection.
Answer:
air+7=p+s/1.342643
Explanation:
thats all i know
Trait A is expressed because of Genes X, Y, and Z. Trait A is a _____
1) physical trait
2) inherited trait
3) polygenic trait
4) pleiotropy
CAN YALL PLEASE HELP
Answer:
inherited trait
Explanation:
because it is what presented by it genotype
If scientists wanted to date the oldest rocks on Earth's surface, why wouldn't
they use rocks formed at the Mid-Ocean ridges ?
Answer:
Explanation:
This is because rocks formed at the mid ocean ridges are young rocks i.e the mid ridges is use to date young rocks. Rocks farther from the mid ridges are older than rocks near the mid ridges and this can also be as a result of the oceanic crust near the mid ridge are younger than the oceanic crust far away from the mid ridge.
All life on earth depends on _____ through the ecosystem
Answer:
Energy
Explanation:
Obtaining nutrients from the
environment and breaking them down
for transport...
a.Synthèsis
b.Nutrition
c. Transport
d.Simple Sugars
Answer:
a
Explanation:
Answer:
A
Explanation:
A. anaphase
B. Metaphase
C. Telophase
D. Prophase
What happens to red blood cells in the following solutions
A) Salt water?
B) Distilled Water ie. Hypotonic solution?
C) Tap water ie. Isotonic Solution?
Answer:
A) The red blood cell will lose water and shrink
B) The red blood cell will gain water, swell and eventually burst; aka hemolysis
C) The red blood cell will fill up with water and burst
A male flying tree squirrel with a medium-length tail has babies with a female with a medium-length tail. Over the years their total offspring number is 52. 13 of these babies have long tails, 27 have medium-length tails and 12 have short tails. a) Propose a method of inheritance for tail length. b) What is the likely genotype of the parents? c) What is the expected phenotypic ratio? d) Given the number of offspring that were had, what is the expected number of offspring for each phenotype?
Answer:
Explanation:
(a) The mode of inheritance for the tail length would be incomplete dominance. In this type of inheritance, one of the alleles representing a gene in heterozygous conditions exert incomplete dominance on the other allele giving rise to a new phenotype.
(b) The likely genotype of the parents are heterozygous. The medium tail length results from the incomplete dominance of the long tail allele on the short tail allele. There is no allele for the medium tail length itself.
(c) Assuming that the allele for long tail length is T and that of short tail length is t, the genotype of the parents would Tt. Crossing the two parents
Tt x Tt
TT Tt Tt tt
TT - Long tail = 1/4
Tt - medium tail = 1/2
tt - short tail = 1/4
(d) From the expected phenotype ratio
Expected number of offspring with long tail = 1/4 x 52 = 13
Expected number of offspring with medium tail = 1/2 x 52 = 26
Expected number of offspring with short tail = 1/4 x 52 = 13
The green plant pigment that absorbs sunlight is
OA.
cellulose.
OB. chlorophyll.
C. carbohydrate.
OD. starch.
Answer:
B. Chlorophyll
The others are wrong
Which of the following molecules can be identifield as carbohydrate select all that apply
Answer: it would beidk
Explanation: idklol.
How would our world be different if humans did not discover how to use yeast thousands of years ago?
Answer:
what is yeast? a microscopic fungus consisting of single oval cells that reproduce by budding, and are capable of converting sugar into alcohol and carbon dioxide.
Explanation:
ok so it would be different because we wouldnt have alchool and carbon dioxide and sugar would be useless
Answer:
Once upon a time there were no farms. People ate fruit off the vine and killed animals as they ran. They roasted things when it suited them but just as often ate them raw. The world was like this for thousands of years, a place of arrows and nuts where everything that was necessary could be found. One might imagine many reasons for giving up on those old, superficially idyllic, ways. Perhaps it was hunger, that ultimate mother of invention, or maybe it was just invention itself, unmotivated by need.
(ii) Explain why active transport is necessary in root hair cells.
Please helpp
Active transport is necessary in the root hair cells because minerals in soil solutions cannot move into plants by osmosis or diffusion.
Dissolved minerals in soil solutions cannot move into the roots of plants by osmosis because only water molecules move by the process.
Also, the minerals cannot move by diffusion because their concentrations are usually very low in soil solutions.
Thus, the minerals need to be moved from the soil into the roots of plants against their concentration gradients. This is where active transport comes in.
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Answer:
It’s a protein macromolecule
Find the variables in the following simple experiments and state which variable is the
independent variable, dependent variable, and the controlled variables.
1. Experiment to find out if tomato plants grow faster in full sunlight or partial sunlight.
2. Experiment to find out if red ants prefer honey over sugar as a source of food.
3. To find out if where fish survive better in rainwater or chlorinated water from faucet.
4. To find out if chicken grow faster if they are fed with pure corn or pure rice.
5. An experiment to find out if corn plants grow better in sand or clay soils
Answer:
1. The dependent variable is the tomato plant because the tomato plants depends on the light to for the plant to grow. The independent variable is the light. The light does not depend on anything. In this experiment the variable that is being controlled is the light because the experimenter is controlling how much light the tomato plant is getting.
2. The dependent variable are the red ants because the red ants are going to determine(depend) to see if they like honey or sugar better. The independent variable are the honey and sugar because honey and sugar are a type of food and it does not depend on anything. The controlled variable is the food because the experimenter is controlling what the red ants like for food.
3. The dependent variable is the fish because the fish depends if they will survive in rainwater or chlorinated water. The independent variable is the rainwater and chlorinated water because the types of water does not depend on whether or not the fish survives. The controlled variable is the types of water (rainwater, chlorinated) because the experimenter is controlling the water that the fish will be exposed to.
I hope that this helps.