The process of scientific inquiry can be best used to answer which question? Why do diseases exist? What should I do? Why do bad things happen? Why is the sky blue?
explain how an element like carbon can be included in both the biotic and abiotic factors of an ecosystem
Answer:
a
b
c
d
Explanation:
Carbon dioxide and waste products are transported to the lungs and kidneys by the __________.
Which of the following polymers provide protection in the plasma membrane? A)Proteins B)Lipids C)Starches D)Nucleic Acids
chitinase is an enzyme that breaks down the chitin molecules in the insect exoskeleton. The sequence of amino acids in the chitinase is an example of which level of protien structure?
Answer:
Primary
Explanation:
What is it called when the fetus's head appears at the outer opening of the vagina?
If cells were placed in a solution, and you observed them shrinking, the solution is probably _____.
A.
hypertonic
B.
hypotonic
C.
isotonic
Answer:
A. Hypertonic
Explanation:
A hypotonic solution is one that has little solute in it and a lot of water compared to another. A hypertonic solution is one that has a lot of solute and little water compared to another solution.
Since we are told that the cell shrinks, then it is clear that the solution that the cell has been put in has more solute to water compared to the cell which is why the cell loses water to the solution. A hypertonic solution
How are plant and animal cells different? Animal cells have lysosomes and plant cells do not. Animal cells have vacuoles and plant cells do not. Plant cells have cell walls instead of cell membranes. Plant cells do not have chloroplasts, but animal cells do.
Answer:
Animal cells have vacuoles and plant cells do not.
Explanation:
I had this one a project
why would plants have pigments that are not photosynthetically active
Plants have pigments that are not photosynthetically active because:
They reflect wave lengths that are not absorbed during photosynthesisPhotosynthesis is the process of plants converting energy from sunlight and other sources into oxygen which helps in cellular respiration.
The pigment which enables plants to convert energy into food is known as chlorophyll.
One example of a plant pigment that does not play a role in photosynthesis is called anthocyanin. Its job is to give color to the plants.
Therefore, the reason plant pigments are not active in the photosynthesis stage is because they reflect wave lengths and perform other specific functions.
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How does pollen differ from plant to plant\?
pollen is a generative means of propagation of flowering plants carried by the wind or species that perch on the flower.
Further Explanationpollen can not last long in the wild.
pollen itself is not a male gamete, but each contains a pollen of vegetative (non-reproductive) cells (only one cell in most flowering plants but several other plants) and generative (reproductive) cells that contain two nuclei: a core tube ( which produces pollen tubes) and generative nuclei (which divide to form two sperm cells). A group of cells surrounded by cellulose-rich cell walls is called the intine, and the outer wall resistance consists mostly of sporopollenin called exine.
pollen is produced in microsporangium (which is contained in the anthera flowers Angiosperms, male cones from coniferous plants, or male cones of other plants). pollen comes in a variety of shapes (most often spherical), size, and surface characteristics characteristic of species (see electron micrograph in the top right). Pine pollen, fir, and winged fir. The smallest pollen grains, Myosotis spp., Are about 6 m (0.006 mm) in diameter. Wind-pollen can be as large as 90-100 μm. Pollen studies are called Palinology and are very useful in Paleoecology, paleontology, archeology, and forensics.
In angiosperms, during development anther flowers consist of cell masses that appear indistinguishable, except for partially differentiated dermis. When flowers develop, four groups of sporogenic cells form in anther, fertile sporogenous cells surrounded by sterile cell layers that grow into pollen sac walls, some cells grow into nutritional cells that provide nutrients for microspores formed by the meiotic division of sporogen cells. The four haploid microspores produced from each sporogenous diploid cell are called microsporocytes, after meiotic division. After the formation of the fourth microspora, which is contained by the kalose wall, the construction of the pollen grain wall begins. Exine is what is stored in the fossil record.
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Class : high school
Subject : biology
Keywords : Pollen, microsporangium , produced, vegetative, modification
During which section of interphase do cells replicate their dna in preparation for mitosis? g2
Raul creates a light circuit using a battery, a lightbulb, and some wires. Label the forms of energy on the diagram. electrical energyradiant energychemical energy NextReset
Answer:
Light bulb: Radiant Energy
Wires: Electrical Energy
Battery: Chemical Energy
Explanation:
I did this text already and the answers were right
Where did gregor mendel learn about flowers and fruit trees?
Cell bodies of the sensory neurons of the spinal nerves are located in ________.
A client who has been prescribed an inhaler points to the spacer and asks, "what is this for?" what is the appropriate nursing response?
A spacer is important for the effective use of an inhaler. It ensures more of the medicine gets delivered to the lungs making the inhaler far more effective and lessens side effects.
Explanation:The spacer that is part of your inhaler is used to ensure efficient delivery of the medication. When you use an inhaler without a spacer, a lot of the medicine sticks to the back of your throat, or stays in your mouth, instead of making it to your lungs where it's needed. Using a spacer ensures that more of the medicine is delivered to your lungs, making the inhaler much more effective and beneficial to your health. It is specifically designed to hold the medication until you can inhale it in your own time, improving correct dosage and reducing side effects.
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The series of events that a cell goes through as it grows, prepares for cell division, and divides to form daughter cells, each of which then begins the cycle again is called
Final answer:
The cell cycle is the process a cell undergoes to grow, replicate its DNA, and divide into two identical daughter cells. It includes interphase for growth and DNA replication, and the mitotic phase for separation of contents and cell division.
Explanation:
The series of events that a cell goes through as it grows, prepares for cell division, and divides to form daughter cells, each of which then begins the cycle again, is called the cell cycle. This ordered series of events involves cell growth, DNA replication, and cell division. The cell cycle is crucial for the duplication of a cell and consists of two major phases: interphase and the mitotic phase. During interphase, the cell grows and DNA is replicated. During the mitotic phase, this replicated DNA and cytoplasmic contents are separated, and the cell divides to produce two identical daughter cells.
Three factors that increase the rates of enzyme-controlled reactions are the
In addition to the base, what are the other components of a nucleotide?
a. sugar and polymerase
b. phosphate and sugar
c. phosphate and polymerase
d. phosphate and helix
e. helix and sugar
All the chemical reactions that occur within a living organism are referred to as:
The foundations of continents are made mostly of basalt
a. True
b. False
Answer:
a.True
Explanation:
Basalt is an extrusive igneous rock, solid and black. It is the most common type of rock in the earth's crust, and covers most of the ocean floor. The foundations of continents are made mostly of basalt. Basalt is formed by abundant dark minerals such as pyroxene and olivine, which make the basalt color gray or dark black.
How are genes used by cells to build proteins?
Answer:
The correct answer will be-gene regulation.
Explanation:
Genes are the segment of DNA which codes for the proteins through gene regulation.
In response to stimuli, the genes get transcript into a molecule called mRNA through the process of transcription in the nucleus. The mRNA export out of the nucleus and gets translated into protein thorough translation process.
During translation, the ribosome reads the nitrogenous base sequence on the mRNA by reading three nitrogenous bases at a time. These are known as the triplets or codons which code for a specific amino acid. The synthesized amino acids bond via a peptide bond and form the polypeptide.
Genes provide the instructions for building proteins through the process of transcription and translation in the cell.
Genes contain protein-building instructions. Protein synthesis involves transcription and translation. RNA polymerase copies the gene sequence into mRNA. This mRNA molecule transports genetic information from the nucleus to the cytoplasm.
The cytoplasm translates. Codons, three nucleotides, are read by ribosomes, which synthesise proteins. Codons represent amino acids. Based on mRNA codons, transfer RNA (tRNA) molecules provide amino acids to the ribosome.
A polypeptide chain is formed as the ribosome travels along the mRNA. The chain folds into a functional protein. Genes direct protein synthesis. These instructions are transcribed into mRNA, which cell ribosomes translate into proteins.
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A woman with type o blood is expecting a child. her husband is type
a. both the woman's father and her husband's father had type b blood. what is the probability that the child will have type o blood?
The nurse is caring for a client who is on a low-carbohydrate diet. with this diet, there is decreased glucose available for energy and fat is metabolized for energy, resulting in an increased production of which substance in the urine?
How does the biological species concept define a species?
A client reports she has lactose intolerance and questions the nurse about alternative sources of calcium. what options can be provided by the nurse?
The modification and packaging of proteins and their transport to the cell membrane for secretion is the role of the __________.
The hormone oxytocin maintains the water balance within the body. true or false
Can someone please describe the role of fermentation in maintaining ATP and NAD+ levels? I cant fully grasp the concept. Answer ASAP please!!!!
Paul zamecnik and his colleagues tracked the fate of radioactive leucine molecules attached to trnas. in their experiment, they found that ________.
Paul Zamecnik and his colleagues carried out an experiment to track the fate of radioactive leucine molecules attached to tRNAs (Transport RNAs). In their experiment, they found out that amino acids are transferred from tRNAs to proteins. Paul Zamecnik, an American scientist, played a major role in the early history of molecular biology.
During which phase is the dna duplicated
DNA duplication happens during the S phase of the cell cycle, a part of the interphase before mitosis. This ensures each daughter cell receives an identical copy of the genetic material during cell division.
Explanation:The DNA, or deoxyribonucleic acid, is duplicated during the S phase of the cell cycle. This is a part of the interphase, which happens before mitosis.
During the S phase, each strand of the DNA molecule is used as a template to synthesize a new, complementing strand, effectively creating two identical copies of the original DNA molecule. This process is critical to ensure that when the cell undergoes division, each daughter cell will receive an identical copy of the genetic material.
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