Answer:
It is called a CATALYST.
A substance that has an influence on the reaction but it does not take part in the reaction is known as a catalyst.
What are the properties of a catalyst?A catalyst has an important property of selectivity which means it only catalyzes a specific reaction. Every reaction is catalyzed by a unique catalyst that is specific to that particular reaction. A catalyst usually undergoes a physical change but does not undergo a chemical change during the reaction.
A catalyst works by increasing the rate of reaction. In a chemical reaction, there is breaking and rebuilding of bonds between different atoms and molecules. This process is made easy with the help of a catalyst which lowers the activation energy and catalyzes the reaction in a smooth manner.
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explain the role of liver in digestion
Explanation:
The liver does many important things including: Makes bile, which helps carry away waste and break down fats in the small intestine during digestion. Makes certain proteins for blood plasma. Makes cholesterol and special proteins to help carry fats through the body.
Explanation:
Your liver continually produces bile. This is a chemical that helps turn fats into energy that your body uses. Bile is necessary for the digestive process. Your liver also creates albumin.
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Why do developed countries have lower growth rates than less-developed countries? higher birth rates lower death rates higher death rates lower birth rates
The correct answer is D. Lower birth rates
Explanation:
The growth rate is determined by how fast the population of a country or a zone increases. This factor is higher in developing countries than in developed countries. One factor that contributes to this is the low birth rate in developed countries as people have fewer children in these countries, and therefore there are fewer births per year than in developing countries. This is influenced by the accessibility to contraceptive methods, higher education levels, and cultural values. Also, fewer births mean the population will grow slowly, and therefore the growth rate is lower.
Answer:
lower birth rates
i. In which structure does photosynthesis take place? [2 marks] ii. Name the substance in chloroplasts which absorbs light. [2 marks] iii. Through which structure does carbon dioxide enter the diagram? [3 marks] iv. What role does sunlight play in photosynthesis? [3 marks]
Answer:
1. Photosynthesis takes place in the chloroplasts.
2. This substance is called chlorophyll.
3. Structure G (Stoma)
4. Sunlight provides energy (light energy) to the chloroplasts for photosynthesis to take place.
Explanation:
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits. A flow chart is shown. A and B both go to C. C goes to both D and E. In which squares should the phrase “Yellow pods” appear? A and D B and E A, C, and D A, B, C, D, and E
Answer:
its E
explanation : its just a hunch
HELPPP ASAP
Sound waves move the fastest through which medium?
O water at high temperatures
O water at low temperatures
O air at high temperatures
air at low temperatures
Answer:
Sound waves move the fastest though water at high temperatures.
Explanation:
Answer:
A
Explanation: just did quiz
what is the meaning of photosynthesis
Answer:
Photosynthesis is the process by which plants and other things make food.It is an endothermic (takes in heat) process.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.
Explanation:(what happens in this process)
-Sunlight energy is converted into chemical energy by using chlorophyll.Gives plants their green color to the plants.
- Chlorophyll absorbs red and blue light and uses the energy to convert water and carbon dioxide into glucose.
- Plants convert sugar and energy from water, air and sunlight into energy to grow
- formula for photosynthesis : 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy
-formation of carbohydrates from carbon dioxide and a source of hydrogen in the chlorophyll-containing cells (as of green plants) exposed to light.
- Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis .
- plants breath in carbon dioxide and breath out oxygen.
Which of these fields of science would be most helpful to an environmental
scientist studying the impact of climate change on mangroves in this
community?
A. Anthropology
B. Botany
c. Zoology
D. Geology
The field of science that would be most helpful to an environmental scientist studying the impact of climate change on mangroves in a community is B. Botany.
What is cell?A cell is the basic unit of life that makes up all living things, including animals, plants, fungi, and bacteria. It is the smallest structural and functional unit of an organism that is capable of performing all the functions of life, including metabolism, growth, reproduction, and responding to stimuli. A typical cell is composed of a cell membrane, cytoplasm, and a nucleus (in eukaryotic cells), or a nucleoid region (in prokaryotic cells). The cell membrane is a selectively permeable membrane that surrounds the cell and separates it from the environment, regulating the exchange of materials between the cell and its surroundings.
Here,
Botany is the branch of biology that deals with the study of plants, including their structure, physiology, genetics, ecology, and evolution. An environmental scientist studying the impact of climate change on mangroves would need to have a strong background in botany to understand the biology and ecology of mangroves, such as their growth patterns, reproductive strategies, and responses to environmental stressors. They would need to understand how mangroves are adapted to their environment, how they interact with other organisms in the ecosystem, and how they are impacted by climate change.
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If you wanted to make a peanut butter and banana sandwich model that represented Earth’s layers by thickness, which would be the best material to have represent Earth’s crust?
Select one:
a. A thin tortilla wrap
b. Thick slices of bread
c. A hamburger bun
d. A croissant
Targe
1.
The independent variable is
and the dependent variable is
in an experiment.
changed, observed
d 07/01
ce
kept the same, observed
d 07/01
observed, changed
07/01
hypothesized, changed
ursday
The expectation is a prediction of what will happen when an idea is tested with
O evidence
O reasoning
O observations
O rebuttals
Which statements describe characteristics that are common to both plants and animals? Check all that apply.
They have nuclei.
They are autotrophs.
They have cell walls.
They are multicellular.
They are heterotrophs.
Answer:
They have nuclei and are multicellular.
Explanation:
Test on Edge
The statements which describe characteristics that are common to both plants and animals are given below.
They have nuclei.They are multicellular.Which is the most common for plants and animals?Membrane-bound organelles, such as the endoplasmic reticulum, mitochondria, the nucleus, Golgi apparatus, peroxisomes, and lysosomes, are found in both plant and animal cells.
Is chloroplast common to plant and animal cells?For example, plant cells contain chloroplasts since they need to perform photosynthesis, but animal cells do not. Plants and animals are very different on the outside as well as on the cellular level. mitochondria, but only plant cells have chloroplasts.
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what is a cation????
Answer:
A positively charged ion.
Explanation:
A cation is a positively charged ion. Its opposite would be an anion, a negatively charged ion. An ion is simply a charged (positively or negatively) atom or molecule.
Answer:
Hey mate, here is your answer. Hope it helps you.
Explanation:
A cation is a positive charged ion which has more protons than electrons. If a cation needs to be formed one or more valence electrons should be lost so that there are more of protons. Anion is a negative charged ion which has more electrons. If anion needs to be formed then one or more protons should be lost.
which is one way that analyzing ice benifits scientists who study ancient climates
Answer:
How does analyzing ice benefit scientists who study ancient climates? Check all that apply.
Ice is one of the best preservers of prehistoric life remains.
Scientists have identified several major ice ages from fossils.
Scientists can drill deep into the ice to collect ice cores.
Pollen grains in ice help make inferences about the climate area.
Scientists can study tree rings in ice to learn more about pas
transport proteins in the cell membrane play an important role in cell transport by
Answer: Membrane transport proteins are specific and selective for the molecules they move, and they often use energy to catalyze passage. Also, these proteins transport some nutrients against the concentration gradient, which requires additional energy.
Explanation:
Membrane transport proteins play a crucial role in the movement of solutes across biological membranes, including ions, nutrients, neurotransmitters, and a wide range of medications.
What function do transport proteins provide in living membranes?
The cell membrane contains transport proteins that enable the selective transit of particular molecules from the surrounding environment. Each transport protein recognizes a certain chemical only (indicated by matching colors)
The two main kinds of membrane transport proteins are carrier proteins and channel proteins. The specific solute to be transported is bound by carrier proteins (also known as carriers, permeases, or transporters), which then go through a series of conformational changes to move the bound solute across the membrane.
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Scientists hypothesize that oxygen began to accumulate in Earth’s atmosphere after the appearance of living things with the ability to
Answer:release carbon emissions
Explanation:
What is the Hepatic Portal Vein?
Answer: The hepatic portal vein is one of the most important vein that receives blood from the body and transports it into the liver for filtration and processing. This vein is part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder, and spleen.
‘Hepatic’ means of or relating to the liver, therefore the hepatic portal vein is a blood vessel that sends nutrient-rich blood from the gastrointestinal tract and spleen to the liver, but also delivers toxins to the liver that will be chemically modified in the proces of detoxication
Answer:
Explanation:
hepatic portal vein is located in the upper right quadrant of the abdomen. It is typically 8 centimeters long in adults. The portal vein is responsible for carrying blood from the GI tract, gallbladder, pancreas, and spleen to the liver.The hepatic portal vein originates behind the neck of the pancreas and is usually formed by the convergence of the superior mesenteric vein and the splenic vein, referred to as the splenic-mesenteric confluence.
Why cant Solar Cells
Work at night ?
Answer: because there is no sunlight
Explanation: Solar cells are also called as photovoltaic cells. They convert light energy to electricity
plsss help asap
Self testing is an important step in the immune system because it
increases the lethality of B-cells.
increases the lethality of T-cells.
eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Answer:
The correct answer is - eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Explanation:
Self-testing in the immune system is a very important step as it helps in analyzing if the immune cells or lymphocytes. To fight against the intruders, the immune system should initially recognize them. That is, the immune system must have the option to recognize what is nonself (remote) based on what is self. The immune system can make this identification since all cells have distinguishing recognition molecules (antigens) on their surface.
Self-test helps in identifying and eliminate in all lymphocytes that have built and attack the healthy cells and killing them.
explain how darwin's observations of finches in the galapagos islands supply evidence for the theory of natural selection?
Birds that ranged from different island of the Galapagos had different characterististic that depended on the climate they lived in.
Answer:
The ones with shorter beaks adapted, survived, and reproduced. Thus, passing their trait of shorter beaks to their offspring.
Explanation:
Which of the following would NOT be considered Lamarckian ideas about evolution?
Answer:
noelos
Explanation:
what is the chemical forumula of sulphur oxygen
Answer:
The chemical formula of Sulphur and Oxygen under normal conditions are S8 and O2 respectively.
If you are asking about the compounds formed from sulphur and oxygen, which sulphur dioxide and sulphur trioxide are the 2 most common compounds, their chemical formulas are SO2 and SO3 respectively.
is a general condition when an organism gains or loses one or more chromosomes but not a complete set. 2. is a general condition where complete haploid sets of chromosomes are present. 3. is a loss of one chromosome from an otherwise diploid genome. 4. is a gain of one chromosome in addition to an otherwise diploid genome. 5. is a trisomy of chromosome 13 in humans. 6. is a trisomy of chromosome 18 in humans. 7. is the addition of one or more extra sets of chromosomes, identical to the normal haploid complement of the same species. 8. is the case of polyploidy when the chromosomes originate from the hybridization of two different species, usually closely related.
Answer:
The correct term for each description s given below:
Explanation:
1. aneuploidy - is a general condition when an organism gains or loses one or more chromosomes but not a complete set.
2. Euploidy - is a general condition where complete haploid sets of chromosomes are present.
3. Monosomy- is a loss of one chromosome from an otherwise diploid genome.
4. Trisomy- is a gain of one chromosome in addition to an otherwise diploid genome.
5. Patau syndrome -is a trisomy of chromosome 13 in humans.
6. Edwards syndrome -is a trisomy of chromosome 18 in humans.
7. autopolyploidy -is the addition of one or more extra sets of chromosomes, identical to the normal haploid complement of the same species.
8. allopolyploidy - is the case of polyploidy when the chromosomes originate from the hybridization of two different species, usually closely related.
Which correctly lists three main causes of deforestation? air pollution, mining, logging mining, cattle ranching, logging cattle ranching, water pollution, air pollution water pollution, logging, mining
Answer:
The other guy was wrong!
The actual answer is B. or Mining, cattle ranching, logging.
I got this right on edge 2021!!!
Hope this helps!!!
Please give brailiest!!!
Answer:
B) Mining, cattle ranching, and logging.
Explanation:
All I know is that logging causes deforestation which is very destructive. The other guy is correct
A classification of metamorphic rocks would include whether they are ____.
a.
chemical or organic
c.
foliated or nonfoliated
b.
intrusive or extrusive
d.
basaltic or granitic
Please select the best answer from the choices
Answer:
C. Foliated or nonfoliated
Explanation:
Which best describes the scientific process?
A. A guess about a scientific idea
B. A group of scientists
C. A type of mathematics
D. A way to answer scientific questions
SUBMIT
Answer: I thinks it’s a. A guess about a scientific idea
Explanation:
Which example is a ling-term environmental change
Answer:
global warming, deforestations, etc
Explanation:
The long term environmental change refers to the change in the environment that arise slowly over a time period and it also has an effect on the organism in generations
While on the other hand, the short term environmental change refers to the change in the environment in which it arises quickly and it also has an effect on the organism instantly
The example that to be considered as a long term environmental change is global warming, deforestations, etc
Based on your understanding of the process of photosynthesis, what are the strengths and weaknesses of this model?
Answer:
photosynthesis is the process of making food by plant in presence of sunlight and chlorophyll in necessary condition is called photosynthesis .
i think its strength are,
1. it converts the light energy, co2and water inthe form of glucose.
2. it manufactures oxygen during this process.
some weakness are,
1. if there is no sunlight then this process cannot be performed.
2. it may take a long time to do this process.
hope it helps uh..
Answer:
The model’s strength is that it clearly shows that the process is quite complicated and that it takes place in different parts of the chloroplasts. It also shows most of the major molecules produced. But it doesn’t show the major steps of the Calvin cycle, so that’s a weakness of the model. It also doesn’t clearly show the process of the electron transport chain.
Explanation:
plato answer.
mark me brainliest please!!
During exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. This information is then sent to the brain's medulla, which causes the heart to beat faster and increases the rate of breathing. Exercising also causes the nervous system to signal the pancreas and thyroid gland to release hormones which regulate metabolism. Which statement is best demonstrated by this scenario? A. Hormones act as signal molecules between all body systems. B. Exercise is important for the body to function properly. C. Nerves transmit and respond to every major system in the body. D. Increased heart rate and blood flow decrease oxygen supply.
A. Hormones act as signal molecules between all body systems
Peripheral Chemoreceptors (Carotid + Aortic Bodies) and Central Chemoreceptors in the Medulla Oblongata detect high Carbon Dioxide levels in the blood during exercise. The respiratory centre in the Medulla Oblongata + PONS stimulate the intercostal muscles and the diphragm to contract in order to increase the rate and depth of breathing as to decrease levels of Carbon dioxide in the blood.
The thyroid gland secretes thyroxine which speeds up metabolism (the rate at which cells use glucose)
Answer:
B. Nerves transmit and respond to every major system in the body.
Explanation:
lant cells can synthesize energy-rich organic molecules, and later break them down to extract that energy for performing life processes where does it occur?.
Answer:
Two processes were described in this question, hence, the location of the two processes are as follows:
synthesize energy-rich organic molecules- CHLOROPLAST
Break them down to extract energy- MITOCHONDRIA
Explanation:
Plant cells are unique cells capable of synthesizing their own food via a process called PHOTOSYNTHESIS. The process of photosynthesis, which occurs in an organnelle called CHLOROPLAST, synthesizes a sugar (glucose), which is an energy-rich organic molecules i.e. it stores energy in its chemical bonds.
However, to harness the usable form of energy stored in the chemical bonds of Glucose, the cells need to break down the glucose molecule. Plant cells break down glucose in a process called CELLULAR RESPIRATION in order to convert the stored energy in Glucose to a usable form called ATP. This extraction of ATP molecule needed for every life process of the plant cell is carried out in another organnelle called MITOCHONDRION.
How many brains does a octapus have?
Answer:
9 brains
Explanation:
No explanation, but you can fact check this by looking it up :)
Answer:
9 Brains are there...!
hope this helps