Answer:
level 3
Explanation:
Which gases are carried by red blood cells? Select two options. oxygen helium carbon dioxide nitrogen hydrogen
Answer:
oxygen carbon dioxide
Explanation:
The gases carried by red blood cells are oxygen and carbon dioxide. Details about gaseous exchange can be found below.
What is gaseous exchange?Gaseous exchange refers to movement of gases from one location to another in a living system.
The blood is the major carrier in the body of living organisms that posseses it. It is made up of three cells as follows:
Red blood cellsWhite blood cellsPlateletsThe red blood cells also known as erythrocytes are responsible for binding to oxygen and carbon dioxide and carrying them into and out of the body respectively.
Therefore, the gases carried by red blood cells are oxygen and carbon dioxide.
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Name an organ that made up of smooth
muscles.
Answer: digestive system
Explanation:
Answer:
An easy one to remember would be the bladder.
Explanation:
Which of the following is an advantage of asexual reproduction in plants?a) enhanced seed dispersal b) no need for a pollinator c) more robust offspring d) genetic variation e) enhanced survival of genetically favorable offspring
Answer:
e) enhanced survival of genetically favorable offspring
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what might indicate to a doctor that there is an issue with someone's blood chemistry
Answer:
The sugar in their blood
Explanation:
Answer: The sugar in thier blood
Explanation: JUST GOT 100%
List three differences that you observed between the onion cell and the cheek cell.
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What types of cells may not undergo mitosis at all?
A. hair
B. brain
C. skin
D. cheek
Answer:
brain
Explanation:
Islands like St. George Island and Dog Island are common along all coastlines in Florida (Merritt Island is another example). Identify the coastal feature that these islands represent and describe the formation process of these islands.
Answer:
These islands are barrier islands.
Explanation:
Barrier islands are islands in front of the mainland that separate part of the sea from the open sea. They lie parallel to the coast and have an elongated, narrow shape. On the sea side, dunes often shape the surface, on the land side they are flat. They were created by deposits of waves, currents and wind. Their formation requires a shallow coastal fore, a sufficiently large sediment store and a weak to moderate tidal range.
What are tips to promote brain power? That can be engaging!
For flowering plants to reproduce sexually, male gametes must be transferred to female ovules during pollination. How does one structure of the plant that makes this possible?
A.
The stigma is often sticky and traps pollen.
B.
The long filaments transport the pollen to the ovary.
C.
The sepals disperse pollen into the air.
D.
The anthers protect the ovules until pollination.
A.
The stigma is often sticky and traps pollen.
What is the secondary level of structure in proteins?
DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their _______ residues termed _______.
a. hyperoxidation.
b. methylation.
c. dephosphorylation.
d. phosphorylation.
e. integration.
Answer:
b. methylation.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.
Hence, DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their cytosine residues termed methylation.
For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.
The study of cells is cell biology.
The correct answer is B.
Science can be defined as a branch of intellectual and practical study which systematically observes a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants, and humans) in the natural world through experiments.
Genome editing can be defined as a high-tech process that avail scientists the opportunity or ability to remove (delete), replace, and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants, etc in order to correct a genetic disorder and to improve on their physical and chemical conditions. Transcription can be defined as a process that typically involves re-writing the information contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase. Hence,
DNA regions that are transcriptionally silenced by hyper condensation have often undergone a modification of their cytosine residues termed methylation.
For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.Hence, the correct answer is B that is methylation.
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can you live without endothelial cells?
If the epidermis is such a good barrier, how can cortisone easily travel through it?
Answer:
cortisone is a lipid-soluble molecule hence can pass through the epidermis
Explanation:
Our adrenaline glands secrete various hormones including cortisol (also known as hydrocortisone) and corticosterone.
They belong to a group of steroid hormone bodies known as glucocorticoids and are used in a wide range of physiological processes such as inflammation regulation.
Pharmaceutical derivatives of these natural glucocorticoids include dexamethasone, fludrocortisone, prednisone, prednisolone, triamcinolone, which differ in strength. As all glucocorticoids have a similar effect, they all fall under the common name "cortisone".
If brown eyes are dominant to blue eyes, what phenotype would be expressed if the genotype is bb?
a. brown
b. blue
c. both brown and blue
d. neither brown nor blue
Answer:
brown will only be expressed
Explanation:
because brown colour is the dominant
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A mitochondrion
5. Inside the cell, DNA is packaged into very large structures known as –
A chromosomes Blysosomes Cenzymes
D peroxisomes
6. DNA contains the instructions for making what other biomolecule?
A lipids
B carbohydrates C polysaccharides D proteins
7. How is this information carried within the DNA?
A Along the sugar-phosphate backbone
C By the arrangement of the sugars
B Between the peptide bonds
D in the sequence of nitrogen bases
8. While DNA is found in all cells, in eukaryotic cells the DNA is found inside of the -
B vacuole
C nucleus
D Golgi body
9. The information in DNA is written according to the genetic code. The genetic code is used to
translate the information in DNA into a specific protein. The genetic code is -
A unique to each individual species
C unique to each family of organisms
B the same for all living things
D different for every single living thing
10. The genetic code is used for translating the information from DNA into a protein. This
means that the sequence of nitrogen bases are coding for --
B monosaccharides C disaccharides D amino acids
11. Most scientists believe that the genetic code provides evidence that all organisms are
related. This is primarily because --
C some species use similar codes
A all living things use the same basic code
D every species has some form of code
A fatty acids
B each species code is a little different
Answer:
i think
5 is A
Explanation:
what is the consequence of using fossil fuels as an energy source
Answer: Fossil fuels pollute the air and release carbon dioxide when burned, this increases pollution and makes climate change worse.
inter calary meristem is also called as
Answer:
Intercalary meristem is a type of meristematic tissue associated with the growth in length in the middle position, thus the name. In particular, it is made up of meristematic cells that divide mitotically in the stem at the base of nodes and leaf blades. The growth at this point is referred to as intercalary growth.
Explanation:
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How is the economy of the Midwest changing
Farming, mining, and manufacturing are the Midwest's major industries. Other industries like transportation, finance, and machinery are also important.
What does hydrophilic mean?
Answer:
having a tendency to mix with, dissolve in, or be wetted by water
Explanation:
Why do tigers have striped fur?
Answer:
to blend with their environment and not from predators but so there prey doesn't see them because tiger don't really have a natural predator except humans so prey would be the only reason it stripe would help with
Explanation:
RIP KING VON
Answer:
They have developed an effective camouflage. The pattern is actually part of the animal's skin so it appears below the fur as well. Tigers don't need protection from other animals, though they do need protection from human beings. The striped-coat camouflage serves to hide them from prey.
Explanation:
When using enzyme-linked immunosorbent assay to determine relatedness of species, what parameter is used to determine results?
Answer:
The change of color in the sample wells with the color in a known sample
Explanation:
Enzyme-linked immunosorbent assay (ELISA) is a technique widely used in molecular biology laboratories to measure antibodies, antigens and/or proteins in the samples that are being analyzed. This assay uses antibodies and color changes in order to identify target substances. The ELISA assay is heterogeneous because the antibody or the antigen is immobilized in a solid support composed by wells of microtiter plates. This assay uses chromogenic reporters and substrates that produce color changes, thus evidencing the presence of antigens which can be species-specific.
William is developing the model shown below to illustrate the process of photosynthesis. He plans to use the model to explain how photosynthesis transforms both energy and matter.
The diagram shows a chloroplast. In the light-dependent reactions, light strikes the thylakoids, water enters, and oxygen is released. In the light-independent reactions, carbon dioxide enters a cycle and sugars leave the cycle.
Earth systems include the biosphere, atmosphere, and geosphere. Use the model to explain how photosynthesis acts to transfer carbon between two Earth systems.
Answer:
The correct answer is - Photosynthesis takes carbon from the atmosphere and brings it to the geosphere and into plants.
Explanation:
Photosynthesis is the process that involves converting light energy to chemical energy stored in the form of sugars with the help of carbon dioxide and water as reactants.
The carbon is pulled from the atmosphere in the form of carbon dioxide for the process to the geosphere and then used by the plants (biosphere). In plants, it is trapped by the chlorophyll present in chloroplasts and water is entered in the light-dependent reaction and carbon dioxide is used in the light-independent reaction.
What are producers called?
Producers are called
as they can create their own food and do not depend on other organisms for energy.
Answer:
Producers are called autotrophs , as they can create their own food and do not depend on other organisms for energy.
The seed plants became dominant during the late ___ when the climate became ___.
The seed plants became dominant during the late Paleozoic era when the climate became drier and more arid.
The dominance of seed plants during the late Paleozoic era was driven by a combination of their unique reproductive strategies, water-conserving adaptations, and the changing climate that favored their survival and proliferation.
During the late Paleozoic era, which lasted from approximately 298 million years ago to 252 million years ago, seed plants, including gymnosperms and later angiosperms, became the dominant plant group on Earth.
This era is also known as the "Age of Seed Plants" due to the significant diversification and success of seed-bearing plants.
One of the main factors that contributed to the rise of seed plants during this time was the changing climate. The late Paleozoic era saw a shift towards drier and more arid conditions, with the decline of the swampy and humid environments that characterized earlier periods.
Seed plants have several adaptations that allowed them to successfully colonize and dominate these drier environments. One key adaptation is the ability to produce seeds, which are reproductive structures containing embryos and stored nutrients.
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Can someone please help me? I don’t really understand this so could you explain?
Answer:
Explanation:
Hello amyrabogan90, The problem is mostly highlighting the distinct differences in both of the animals. By looking at the animals we can see that the rather large brown bear has evolved and adapted to its environment by growing a thick layer of fur and fat. This allows the bear to not only stay warm during the especially cold winters but go without eating for an extended period of time as sources of food become increasingly scarce. This starkly contrasts the qualities of the buck pictured on the left. Bucks are much slimmer and have a relatively light coat. This allows them to move quickly to avoid predators and allows them to stay alive on a herbivores diet of grasses and other vegetation. Bucks are also highly competitive with other males and can often be seen fighting each other for mating rights. For this reason the buck will grow a large set of antlers in order to fight with.
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Which of the following describes the consequences of overgrazing? (3 points)
I. Low precipitation
II. Desertification
III. Loss of arable land
IV. Soil erosion
O II, III, and IV
O I, II, and IV
I and II
O I and IV
Answer:
II. Desertifiction
The things that describes consequences of overgrazing are low precipitation, loss of land, and soil erosion. The correct option is A.
What is overgrazing?Overgrazing occurs when plants are subjected to intensive grazing for an extended period of time or without adequate recovery time.
It is caused by livestock in poorly managed agricultural applications, as well as game reserves and nature reserves.
Overgrazing can significantly decrease ground cover, allowing wind and rain to erode and compact the land.
This reduces the ability of plants to grow and water to penetrate, causing soil microbes to suffer and causing serious erosion of the land.
It is caused by livestock in poorly managed agricultural applications, as well as game reserves and nature reserves.
Thus, the correct option is A.
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Compare and contrast a cell and a tissue.
Answer:
Cells are the smallest, structural and functional unit of an organism, which is characteristically microscopic. Tissues are the distinct types of material consisting of specialized cells and their products. Found in both unicellular and multicellular organisms. Found only in multicellular organisms
Answer:
Cells are the smallest, structural and functional unit of an organism, which is characteristically microscopic.But Tissues are the distinct types of material consisting of specialized cells and their products.
Explanation:
Cells are found in both unicellular and multicellular organisms.But Tissues are Found only in multicellular organisms.
If you could use a powerful microscope to see the particles in a gas, what would you see between the particles?
Answer:
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Explanation:
The particles in a gas move quickly in all directions, but they do not get far before they bump into each other or the walls of their container.
This chemical equation represents a chemical reaction.
HCl + NaOH - NaCl + H20
Which two chemicals are products in the chemical reaction?
A. NaOH
B. H20
C. NaCl
D. HCI
Answer:
the answer is NaCl and H20
This chemical equation represents a chemical reaction. HCl + NaOH - NaCl + H20, in the reaction NaCl and H₂0 are products of the chemical reaction.
What are the products in the chemical reaction?HCl + NaOH - NaCl + H₂0Here, Sodium Hydroxide, and Hydrochloric Acid combine as an acid and a base in a neutralization process to yield Sodium Chloride (common salt) and Water as by-products.
Reactants are the substance(s) in a chemical equation to the left of the arrow. A component that is present at the outset of a chemical reaction is known as a reactant. Products are the substance(s) to the right of the arrow.
Therefore, Sodium Hydroxide and Hydrochloric Acid combine as an acid and a base in a neutralization process to yield Sodium Chloride (common salt) and Water as by-products.
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describe the development of pollen grain and formation male gamete
Answer:
Upon germination, the tube cell forms the pollen tube through which the generative cell migrates to enter the ovary. During its transit inside the pollen tube, the generative cell divides to form two male gametes (sperm cells). Upon maturity, the microsporangia burst, releasing the pollen grains from the anther.