Which group of plants common during the Triassic period had seeds lacking a protective outer coat?
Answer: The most dominant form of plants found in Triassic Era was Gymnosperms. They lack a protective covering on seed and did not produce flower. The outer coating of seed is absent in Gymnosperms. There were no angiosperm in that era and the dominant form was angiosperm only. This was because of the climatic conditions at that time that the survival of any other plants other than gymnosperm was not possible.
What can you learn from models that you cannot learn by looking at structural formulas?
How do fungi break down leaves, fruit, and other organic material into simple molecules?
The muscle protein whose function is related to its golf club-like shape is
What structure will you find in a prokaryotic cell?
Answer:
Prokaryotes are a simple, single-celled species, which are devoid of membrane-bound organelles or a nucleus. The cell composition of prokaryotes can differ, however, the majority of organisms exhibit many basic constituents. Prokaryotes have a plasma membrane or cell membrane, which functions as a safeguarding layer.
They also possess a tough cell wall for supplementary protection and support. The cells of prokaryotes possess ribosomes that are the molecules, which produce proteins. Their genetic substance is in the nucleoid that is the part where DNA thrives. Supplementary rings of DNA known as plasmids float freely in the cytoplasm.
Apart from this, some of the prokaryotes exhibit flagellum or pilus to assist them in movement. Some of the prokaryotes exhibit a capsule exterior to their cell walls. The storage of nutrients can also differ, however, many prokaryotes utilize stowage granules in their cytoplasm.
Which one has has genetic material surrounded by a membrane prokaryotic or eukaryotic cells?
The nuclear envelope, a membrane that divides the cytoplasm from the spheroid-shaped nucleus, is responsible for this separation.
What are the different features in prokaryotic cell?The primary difference between the two is that eukaryotic cells have a distinct nucleus that houses the cell's genetic material.
Prokaryotic cells lack internal membrane-bound organelles in their cytoplasm, but are encircled by a plasma membrane.
The most noticeable organelle in a eukaryotic cell is the nucleus. The majority of DNA replication and RNA synthesis take place there, and it also houses the cell's chromosomes.
Prokaryotes are distinguished from eukaryotes, another class of creatures, by the lack of a nucleus and other membrane-bound organelles.
Therefore,in eukaryotic cell, genetic material is surrounded by membrane.
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The stage of the cell cycle during which dna replicates is called _______.
) a young woman comes into the clinic complaining of itchy, red skin and swelling on her arms and legs. she had not been in any parks or wooded areas recently, but she had been shopping. a blood sample reveals elevated levels of granulocytes. what treatment is the physician likely to prescribe at this point?
What can be concluded about the relationship between the two functions? check all that apply?
Answer:
It is A B D and E on Edge nuity
Explanation:
This is best described by which of these?
a.plagiarism
b.science is risky
c.stealing information from fellow scientists eliminate
d.scientific knowledge builds upon previous knowledge
The stage of the cell cycle where the cell is not actively dividing is called
why is it so important to balance a chemical equation
Final answer:
Balancing a chemical equation is vital because it adheres to the law of conservation of matter and allows for the precise stoichiometric relationships between reactants and products. This process ensures equal numbers of atoms for each element on both sides of the equation and is crucial for accurately determining reactant and product quantities.
Explanation:
Proper chemical equations should be balanced. Writing balanced reactions is a chemist's way of acknowledging the law of conservation of matter, which states that matter can neither be created nor destroyed in an isolated system. This principle is a fundamental concept in Chemistry and is crucial for the proper understanding of chemical processes.
In order to balance a chemical equation, it is important to understand the law of conservation of mass. This law signifies that the quantity of each element involved in a chemical reaction must remain unchanged from the reactants to the products. Therefore, an important exercise is the process of balancing a chemical equation, which consists of placing the correct coefficients before each of the reactants and products so that equal numbers of each kind of atom are on both the left and right sides of the equation.
A balanced chemical equation provides not only the identities of the reactants and products involved in the chemical change but also their stoichiometric relationship—the quantitative assessment of the relationships between the amounts of substances consumed and produced by the reaction. This stoichiometric relationship is crucial when determining the amount of one reactant required to react with another, or to yield a given amount of product.
Harvesting energy and converting it to atp is the job of what organelle
Answer:
Mitochondria
Explanation:
Mitochondria are organelles of a eukaryotic cell also known as 'power house' of the cell as it produces energy currency of the cell that is ATP. They are present in cytoplasm, not in the nucleus. It converts the energy obtained form the food we eat to the energy that is responsible for running a range of biological processes.
Which of the following is the principle that al geologic processed have occurred in the same manner today as they have always throughout earths history. A) Gradualism. B) Uniformitarianism. C) Catastrophism. D) Stratigraphism.
Final answer:
Uniformitarianism is the geological principle stating that the same processes that operate now have always operated in the Earth's past and are responsible for shaping Earth's geological features. Option B is correct .
Explanation:
The principle that suggests all geological processes have occurred in the same manner throughout Earth's history is known as uniformitarianism. This concept was first proposed by James Hutton, a Scottish geologist, and later popularized by Charles Lyell in the 19th century. It contradicts other beliefs such as catastrophism, which posits geological features result from sudden, substantial events. Uniformitarianism states that the slow and continuous processes we observe today, like erosion and sedimentation, are the same ones that shaped Earth's surface in the past. Therefore, the correct answer to the student's question is B) Uniformitarianism. This principle suggests that changes in the Earth's surface are the result of slow and consistent processes rather than sudden and catastrophic events. For example, valleys formed by rivers wearing through rock over long periods of time is an example of the gradual change that is consistent with uniformitarianism.
Epidermal cells synthesize this vitamin when exposed to sunlight. epidermal cells synthesize this vitamin when exposed to sunlight. vitamin a vitamin d3 vitamin c vitamin e vitamin d2
The correct answer is , Vitamin D.
What is Vitamin D?It is a fat-soluble vitamin with a long history of helping the body retain and absorb calcium and phosphorus, both of which are essential for bone development.
Additionally, research in the lab demonstrates that vitamin D helps lessen inflammation, manage infections, and slow the growth of cancer cells. Scientists are actively researching additional potential activities for vitamin D, which has receptors in many bodily organs and tissues and suggests crucial roles beyond bone health.
Though certain foods have been fortified with vitamin D, very few foods actually contain it naturally. Because it is challenging to consume enough vitamin D through diet, taking a supplement is the best option for the majority of people.
Therefore, The correct answer is , Vitamin D.
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The effects of anaerobic conditions how would anaerobic conditions (when no o2 is present) affect the rate of electron transport and atp production during oxidative phosphorylation? (note that you should not consider the effect on atp synthesis in glycolysis or the citric acid cycle.)
Answer:
Explanation:
Both electron transport and ATP synthesis would stop.
It is not the refrain or chorus of a movement, but it is the intensifying of one movement, one sequence, or the entire dance. intensification is not static...what sense is this?
A cell is being held in g1 phase due to dna damage caused by uv radiation. when the dna is damaged, p53 is phorphorylated and prevents entry into what phase?
When the hanging wall moves down, the fault can be classified as what?
The answer is a normal fault. The hanging wall moves downward relatively to the foot wall. These classification of faults place fresher or low-graded rocks above the old or high-graded rocks. Normal faults may be found in different countries around the globe.
Miguel's doctor has recommended that he consume less saturated fat. at his favorite fast-food restaurant, miguel chooses a grilled chicken sandwich. the menu states that the sandwich contains 460 calories, and 6 grams of saturated fat. what is the percentage of calories from saturated fat in this choice?
A nurse is providing instructions to an asian patient regarding obtaining a stool specimen for testing for occult blood. as the nurse explains the instructions, the patient continuously turns away from the nurse to avoid eye contact. which nursing action is most appropriate?
Dna recombination changes the genetic makeup of organisms. true or false?
Dna recombination changes the genetic makeup of organisms.
The statement is True.
- DNA recombination indeed changes the genetic makeup of organisms.
- This process involves the rearrangement of DNA sequences, leading to the creation of new combinations of genetic material.
- Recombination can occur naturally through processes such as crossing over during meiosis or artificially through techniques like genetic engineering.
- DNA recombination involves the exchange of genetic material between different DNA molecules or within the same molecule.
- It leads to the creation of genetic variation within populations, which is crucial for evolution and adaptation.
- Recombination can result in the formation of novel alleles and traits, contributing to the genetic diversity of organisms.
- In biotechnology, DNA recombination is used to manipulate and modify genetic sequences for various purposes, such as the production of genetically modified organisms (GMOs) or the development of gene therapies.
- Overall, DNA recombination is a fundamental process that plays a significant role in shaping the genetic makeup of organisms.
Breaking carbohydrates into their subunits will yield_____ as products. Breaking down proteins will yield_____ as products.
Breaking carbohydrates into their subunits yields monosaccharides such as glucose and galactose. Meanwhile, breaking down proteins produces amino acids. Both processes, driven by particular enzymes, provide energy and form smaller elements for absorption by cells.
Explanation:Breaking carbohydrates into their subunits will yield monosaccharides like glucose and galactose as products. This process is facilitated by enzymes such as amylase and maltase, which break down complex carbohydrates into simpler sugars. This is part of catabolic reactions that break larger molecules into their smaller, constituent parts.
On the other hand, breaking down proteins yields amino acids as the primary products. Proteins are essentially long chains of amino acids joined by peptide bonds. During digestion, enzymes like pepsin, peptidase, and hydrochloric acid break these chains down into individual amino acids.
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describing the production of protein molecules through transcription and translation.
DNA
mRNA
RNA polymerase
base pairing
transcription
translation
tRNA
rRNA
ribosomes
amino acids
protein
can someone just give me a quick over cap on these topics please?? its supposed to be an essay but i just need an overcap!
Which mineral can smell like rotten eggs?
Question 4 options:
Jadeite
Sulfur
Calcite
Halite
Sulfur is the mineral that can smell like rotten eggs, specifically in the form of hydrogen sulfide (H2S). This gas is toxic and can paralyze the olfactory nerves.
The mineral that can smell like rotten eggs is sulfur. When sulfur is in the form of hydrogen sulfide (H2S), it emits a characteristic odor similar to rotten eggs. This gas is very toxic and can be produced when sulfur minerals are exposed to the atmosphere or in places such as hot springs. Although pure sulfur does not have a strong smell, the presence of impurities can give it a noticeable odor.
Important to note is that the compound hydrogen sulfide, which results from sulfur's reaction with hydrogen, can paralyze the olfactory nerves, leading to a temporary inability to detect its already-pungent smell after a short exposure. Therefore, it's essential to handle sulfur compounds with care due to their toxic nature.
A word in a muscle name that indicates that the muscle decreases the size of an opening is
approximately _____% of the available energy is passed from organisms at one trophic level. to organisms at the next trophic level.
Which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids?
a.
b. ribosome
c. lysosome
d. smooth endoplasmic reticulum
e. mitochondrion f. contractile vacuole?
The organelle that is primarily involved in the synthesis of oils, phospholipids, and steroids is the smooth endoplasmic reticulum.
The smooth endoplasmic reticulum is a system of tubules within the cytoplasm of eukaryotic cells - both plant and animal cells. It is as opposed to the rough endoplasmic reticulum which has ribosomes attached to its own surfaces to give it a rough appearance.
The smooth endoplasmic reticulum is involved in several metabolic processes, such as:
Lipid synthesisPhospholipid synthesismetabolism of carbohydratessynthesis of oilregulation of calcium ion storage in muscle cellsmetabolism of toxinsMore on the functions of the smooth endoplasmic reticulum can be found here: https://brainly.com/question/1464048
Based on an established plan of care, a nurse turns a patient every 2 hours. what part of the nursing process is the nurse using?
Which process occurs only in autotrophic organisms? Calvin cycle chemiosmosis Krebs cycle proton pump mechanism
Answer: A Calvin cycle
Explanation: i just did the test so this is right