it would be I believe number 2
How would you recognise red blood cells when looking at a colour photograph of blood taken with a light microscope?
Answer:
Erythrocytes, or red blood cells, are by far the predominant cell type in the blood smear. They appear as biconcave discs of uniform shape and size (7.2 microns) that lack organelles and granules. Red blood cells have a characteristic pink appearance due to their high content of haemoglobin.
Which characteristics of taxonomic groups will be used to complete the chart above in X, Y, Z order?:
A: x: Autotrophic, y: Heterotrophic, z: Multicellular
B: x: Heterotrophic, y: Autotrophic, z: Unicellular
C: x: Heterotrophic, y: Autotrophic, z: Multicellular
D: x: Autotrophic, y: Heterotrophic, z: Unicellular
Animal is Heterotrophic whereas plant is Autotrophic and Multicellular organism.
What are heterotrophic and autotrophic organism?Animals are the heterotrophic organism because it can't prepare their own food while on the other hand, plants are autotrophic organisms because it make their own food through the process of photosynthesis.
Plants and animals are multicellular organisms means they are made up of more than one cell so we can conclude that option C is the right answer.
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What structural level is represented by the sequence of amino acids in a polypeptide chain?.
Answer:
i think its the first level of that
Which family on the periodic table is least likely to enter into chemical reactions?
Ο 1
Ο 2
Ο 17
Ο 18
Answer:
O 18
Explanation:
Group/family 18 is the group of noble/inert gases. They are least likely to enter into chemical reactions, as their valence shell is filled, so stability is maximum.
BRAINLIEST?
OF COURSE IT IS.
:)
Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color.
With cell division, it is necessary that the process of ______ occur in order to ensure that resulting cells each contain the entire genome.
Answer:
DNA Replication
Explanation:
Ensures that resulting cells contain entire genome
What is Islets of Langerhans?
:')
Answer:
The Islets of Langerhans are a cluster of cells within the pancreas that are responsible for the production and release of hormones that regulate glucose levels.
Explanation:
Islets of Langerhans, also called islands of Langerhans, irregularly shaped patches of endocrine tissue located within the pancreas of most vertebrates.
The islets of Langerhans are microorgans located in the pancreas.
The islets of LangerhansThe islets are formed by polygonal or rounded cells, arranged in cords, around which there is an abundant network of blood capillaries with fenestrated endothelial cells.
Types of islets of LangerhansAlpha (A) cells: secrete glucagon. In humans, these cells have regular-shaped granules containing a dense center surrounded by a clear region under the membrane.Beta (B) cells: secrete insulin and amylin. B cells have irregular granules with a center formed of irregular crystals of insulin complexed with zinc.Delta cells (D): synthesize somatostatin.PP (F) cells: contain a pancreatic polypeptide.With this information, we can conclude that the islets of Langerhans are microorgans that constitute a large production of products for the maintenance of life.
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what is the upper layer of earth's mantle where convection occur's??????
HELLLPPPP!!!!
How do your pets enhance your life? If you do not have any pets, how do you envision a pet would enhance your life?
Answer:
pets can help boost your mood
Explanation:
if you do not have any pets you could have slight depression if there is no one to cheer you up such as your companion
What does the microstructure of dinosaur bones look like?.
Answer:
A blend between mammals and reptiles!
Explanation:
Hope this helped! :3
PLS HELP: how did the school experiment turn out? discuss how you might learn in this environment.
Answer:
That young people loved it. They found it much more motivational, much more exciting than traditional education. In this environment, I could learn how to get out of my comfort zone and become more successful in the things I'm passionate about.
The backlit screens of computers emit enough light to suppress the hormone _____, which normally rises in the evening and orchestrates a number of daily rhythms, including sleep.
The backlit screens of computers emit enough light to suppress the hormone melatonin. This hormone rises in the evening and orchestrates daily rhythms.
What is melatonin?Melatonin is a hormone whose secretion in the brain is connected to sleep (i.e. the time of day or circadian cycle).
Melatonin is produced by the pineal gland as an environmental response to darkness.
This hormone (melatonin) is well known to be involved in different sleep disorders, thereby having therapeutic applications.
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The cause of genetic drift is sampling error, which occurs:when allele frequencies of a chosen subset of a population are the same as those in the total population, by selection.when allele frequencies of a chosen subset of a population are the same as those in the total population, by chance.when allele frequencies of a chosen subset of a population are different from those in the total population, by chance.when allele frequencies of a chosen subset of a population are different from those in the total population, by selection.
The cause of genetic drift is sampling error, which occurs when allele frequencies of a sample are different from the population due to random chance. It is a genetic phenomenon.
Genetic drift and allele frequenciesGenetic drift is a sampling error due to differences in allele frequencies of a sample from a population due to random chance.
Genetic drift is known to decrease the level of genetic variation of a given population.
Genetic drift is common in founder populations (e.g., island populations).
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What is the role of the microtubules in cell division.
Please answer this question
Answer:
the best answer would be the 2.3 is weighed down by the droplets and the 2.2 was kept dry so it stayed fluffy and soft
Explanation:
What property of the cell membrane allows some molecules to pass easily through.
Answer:
selectively permeable
Cell membranes only allow some molecules through. This characteristic is why cell membranes are selectively permeable. They are not impermeable (not letting anything pass) nor are they freely permeable (letting everything can pass). This quality allows a cell to control what enters and exits it.
Answer:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others
Explanation:
C. Describe the relationship between a cell's surface area-to-volume
ratio and the transport of wastes from inside the cell to the outside
environment.
Answer:
IL Read the story carefully then answer the following questions below Wish Upon Star were watching the stars as they competed on which star was the brightest Two brothers, Danny and Joey, were lying on the soil grass outside their house. They "Have you seen a shooting star?"asked Danny Not yet Mother told me to make a wish when I see one." answered Joey Funny! But Father said that, too."said Danny Suddenly, they saw a shooting star on the sky Questions Note: Write your answer in complete sentence I. What were Danny and Joey doing outside.?2 What kind of night was it when the story happened? 3. Did the brothers make a wish when they saw the shooting star? What made you say?4. Is the title of the selection a suitable one? Why? or Why not? appears in every and thing people note 5. What do you expect to happen when you wish upon a star
The relationship is that as a cell's surface area-to-volume ratio increases, the efficiency of waste transport from inside the cell to the outside environment improves.
The surface area-to-volume ratio is a critical factor in determining a cell's efficiency in various processes, including the transport of wastes. This ratio represents the relationship between the cell's outer surface area (which determines the rate of exchange with the environment) and its internal volume (which determines the amount of material that needs to be transported).
In smaller cells or cells with a higher surface area-to-volume ratio, a larger proportion of the cell's interior is in close proximity to the cell membrane. This proximity allows for more efficient exchange of gases, nutrients, and waste products between the cell's interior and the external environment. Waste products that accumulate in the cell can diffuse more readily to the cell membrane for elimination.
In contrast, as cells grow larger and their volume increases, their surface area-to-volume ratio decreases. This can lead to reduced efficiency in transporting wastes, as the larger internal volume requires more time for waste products to diffuse to the cell membrane. This inefficiency can potentially hinder cellular functions and contribute to cellular stress.
In summary, a higher surface area-to-volume ratio allows for more effective waste transport due to the increased exchange area at the cell membrane. This concept highlights the importance of cell size and shape in maintaining efficient cellular processes, including waste elimination, as cells strive to balance their internal needs with the demands of their external environment.
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PLZ HELP Which statements are true? Check all that apply A. During a phase change, the temperature of a substance does not change B. If heat is added to a substance, the temperature increases unless there is a phase change. C. If heat is added to a substance, the temperature always increases D. As heat is added to a substance, the temperature stays constant or goes down
Answer:
C
Explanation:
C i think i hope this helps
Bye!
Genetics is defined as:
A: Branch of biology concerned with the study of genes, genetic variation, and heredity in organisms
B: Branch of biology which studies the interactions among organisms and their environment.
C: Branch of biology that integrates physical, biological, and information sciences to the study of the environment, and the solution of environmental problems.
D: Branch of biology concerned with the study of microorganisms, those being unicellular, multicellular, or acellular
When there are not enough available nutrients to support bacterial growth, some bacteria survive by
Answer:I’m not sure but I think it is the last one
Explanation:
When there are not enough available nutrients to support bacterial growth, some bacteria survive by produce an resistant dormant structure called endospore
what are the characteristic features of bacteria ?Bacteria are single-celled microorganisms which and other photosynthetic prokaryotes are cyanobacteria do photosynthesis.
A bacteria has single membrane and all the metabolic reactions occur within the cytoplasm.
In bacteria the Mitochondria, Golgi bodies, chloroplast, and lysosomes are absent, whereas genetic material is present as a single chromosome;
the eukaryotic chromosome have histone protein, while bacteria cell chromosome does not have it, cell wall is composed of carbohydrates and amino acids, plasma membrane carrying respiratory enzymes like mitochondrial membrane.
They divide by binary fission where as the sexual mode of reproduction involves conjugation.
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The processes of megakaryocytes from which platelets are derived, extend between endothelial cells of blood vessels and are called .
The cytoplasmic fragments of the megakaryocytes constitute the platelets, this fragments simultaneously into thousands of new platelet cells, these morphological changes are known as proplatelets.
What are proplatelets?They are cytoplasmic protrusions from which platelets or fragments are going to be detached that end up maturing in the circulation.
Characteristics of proplateletsPlatelets are formed from the fragmentation of giant cells, which emit cytoplasmic protrusions.Each megakaryocyte has about 6 proplatelets, and each proplatelet houses about 8,000 platelets, these "bags" full of platelets enter the bloodstream where they break, releasing them.Therefore, we can conclude that the megakaryocytes form the future platelets, these platelets are grouped in cytoplasmic portions, called proplatelets.
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Why wasn't there any complex life living on
the surface of the Earth above the water
Answer:
A volcano probably wiped out all the signs of life
Explanation:
Which statements are false?
Answer:
B. and C. are false
Explanation:
Those answers would be considered false given the question!
Viruses have many things in common with living organisms, but they are not actually considered living. Why?.
-Viruses can't reproduce by themselves. They require a host animal to do so.
-Viruses are not made of cells
-They can't keep themselves in a stable state (regulate temperature)
-They don't grow
-They can't make their own energy
Hope this helps :)
What is the food chain in a bass pond
what is a nucleus localized transcription factor and what is its function?
Answer:
What role do transcription factors play in gene structure and function?
Transcription factors are proteins that bind to the upstream regulatory elements of genes in the promoter and enhancer regions of DNA and stimulate or inhibit gene expression and protein synthesis. They play critical roles in embryogenesis and development
Explanation:
The serous fluid within the pericardial cavity works to:____.
a. Lubricate the membranes of the serous pericardium.
b. Slow the heart rate.
c. Equalize the pressure in the great vessels.
d. Eliminate blood pressure spikes.
e. Do none of the actions listed.
The serous fluid within the pericardial cavity works to lubricate the membranes of the serous pericardium. It is the space between the layers of the pericardium.
What is the pericardial cavity?The pericardial cavity refers to the space between different layers of the pericardium in the heart.
The pericardium is one of the three tissues that form the heart (i.e., pericardium, myocardium, and endocardium).
The pericardial cavity is composed of a serous fluid capable of reducing surface tension and lubricating this layer.
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Which blood component primarily contributes to plasma osmotic pressure?.
Albumin is also the most significant contributor to the osmotic pressure of blood; that is, its presence holds water inside the blood vessels and draws water from the tissues, across blood vessel walls, and into the bloodstream.
In this course, you will learn about hormones and their effects on cells. Certain hormones bind to receptors at the plasma membrane to "deliver" their message to the cell. What function of the plasma membrane is this?.
Cellular communication is the function of the plasma membrane that allows it to respond to certain stimuli from outside the cell and hormones to bind to receptors.
What is plasma membrane?It is a double layer of lipids that covers and delimits the cells, serving as a border between the inside and the outside of the cell, and also allowing a physicochemical balance.
Characteristics of plasma membraneEnables the development of compartments; allows or rejects the entry and/or exit of particles; acts as a mechanical defense; and reacts to external signals and stimuli.
It reacts and transmits information inside the cell, starting certain biochemical processes: cell division, cell movement or the segregation of biochemical substances.
Therefore, we can conclude that the main characteristic of the plasma membrane, that is, its ability to allow or reject the entry of certain molecules into the cell.
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Describe how uncontrolled cell division is dangerous in organisms?
Answer:
Cancer is the result of unchecked cell division caused by a breakdown of the mechanisms regulating the cell cycle. The loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. Faulty instructions lead to a protein that does not function as it should.
