Answer:
Event 1
Explanation:
Event in which there is color change is most likely to be an example of chemical reaction as there is chemical change taking place in it.
What are chemical changes?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
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How many atoms make up a whale?
Which molecule allows a blade of grass to stand straight?
Answer: water molecules
Explanation: grass cells through osmosis becomes turgid making them stand
Habitat destruction is very often the result of
Answer:
Habitat destruction (land use) that results from the expansion of human population. ... Threats to habitat in decreasing order of importance. Agriculture (38%), commercial devlop., water projects, outdoor rec., livestock grazing, pollution, infrastructure/roads, disruption of fire, and logging (12%)
Explanation:
Answer:
Logging,Over fishing,Hunting,and clearing areas
Explanation:
The activity of human is the primary cause e.g logging and hunting
1. What is venation ?
2. What are autotrophe ?
3. What does plant require to cook food for itself ?
Please help me asap !!
Answer:
1. Arrangement of veins in a lamina is called venation.
2. All green plants have the capability to prepare their own food and are called autotrophe .
3. Plants Require :
WaterCarbon DioxideChlorophyllEnergy( From Sunlight)Explanation:
Hope it helps out !!Which of the following statements best supports the claim that different organisms use different strategies for conserving energy needed for growth, reproduction, and maintenance of the living state?
A. Herbivores eat a plant-based diet, carnivores eat a meat-based diet, and omnivores eat both plants and meat.
B. Fungi and bacteria both perform the essential function of moving carbon, nitrogen, and phosphorus from the living to the non-living world.
C. Annual flowering plants have shallow root systems and many colorful flowers, while perennial flowering plants have deep root systems and fewer flowers.
D. Predator animals tend to have binocular vision, while prey animals tend to have panoramic vision.
Which term describes the chromosomal abnormality of having three copies of a single chromosome? haploidy diploidy trisomy tetrasomy
Answer:
trisomy
Explanation:
The prefix tri- means three
The prefix di-means two
The prefix tetra- means four
Answer:
The answer is Trisomy.
Explanation:
The word "Tri-" means having three times the single amount of something.
Which of the following molecules consists of a string of nucleotides made up
of a nitrogenous base, deoxyribose, and a phosphate group?
A. mRNA
B. DNA
C. All nucleic acids
D. tRNA
Answer:
B. DNA
Explanation:
DNA is the answer because the full form of DNA Deoxyribonucleic acid.
This is because DNA lacks one oxygen (hence "deoxy")
All the other options such as mRNA have ribose.
Answer:
d
Explanation:
it’s right
Identify the point where the common ancestor of the fly and spider would be located.
Answer:
The common ancestor of the fly and spider would be located in the closest where B and C converge.
Explanation:
In phylogenetic trees, two species are more related if they have a recent common ancestor. On the other hand, two species will be less related if their common ancestor is not a recent one and is located far away in the tree.
In the phylogenetic tree, the taxonomic groups of interest are located in the extremes of the lines called branches. In the present example, the fly and the spider are the species located in the extreme of the branches. The ramification point, which is also called "node" or divergence point, represents the location of the most recent common ancestor.
In the example, the point where the branches B and C get united, is the place where their common ancestor is located.
The red point in the attached file "tree1" shows you where it is located the common ancestor of the two species.
Since all living things on Earth share the same universal code in DNA and RNA molecules, which of the following is most likely true ?
Answer:
where are the answers?
A gene may be described as
Answer:
The correct answer for the fill in the blank is - A sequence of bases on the DNA that codes for a trait.
Gene is described as a segment of DNA ( deoxyribonucleic acid) that codes for a particular protein, which in turn corresponds to a trait/ characteristic of the living organism.
Gene is first transcribed into mRNA ( messenger RNA) through a process called transcription. mRNA is then converted into protein through a process called translation.
The protein thus formed corresponds to a particular trait ( like eye color, hair color).
i hope this helps
for each of the following organisms, describe how digested food reaches their body cells: a hibiscus plant, a paramesium, a coral polyp, an earthworm, a mosquito a human
Answer:
Hibiscus plant: transported by the phloem
Paramecium: simple diffusion from the food vacuole into the cytoplasm
Coral polyp: diffusion from the gut to the body cells
Earthworm: transport through the blood
Mosquito: transport through the blood
Humans: transport through the blood
Explanation:
Digestion involves both mechanical and chemical processes to break up
food into smaller or simpler constituent parts that can be absorbed by the body.
Digestion is divided into external digestion and internal digestion.
External digestion involves digestion of food outside the body using digestion enzymes and then absorption into the body by diffusion.
Internal digestion is when food is ingested into the body, broken down by Digestive enzymes and juices and then absorbed into the body cells.
A hibiscus plant stores it's food as starch. When the stored food is needed, it hydrolyses starch into molecules small enough to pass through the cell membrane. The hydrolysed food molecules are then transported by the phloem to cells that need them for energy production.
A paramecium is a protist which feeds by endocytosis, i.e. sorrounding and digesting food in its food vacuole. The digested food diffuses through the cell
cytoplasm and mitochondria oxidise it to produce ATP.
A coral polyp is a marine invertebrate belonging to the phylum Cnidaria.
Cnidarians have a simple sac-like gut, with only one opening and one unspecialised gut chamber.
They do not have a circulatory system to deliver nutrients to the cells, instead digested food diffuses from the gut to the body cells.
An earthworm is an annelid and carries out internal digestion. Food taken in from the mouth is digested and absorbed by the intestines into the blood. The blood then carries the absorbed food to the earthworm’s body cells.
Mosquitoes both male and female feed on sap and nectar, aphid honeydew, and plant juices, but in many species the mouthparts of the females are adapted for feeding on the blood of other organisms.
Food taken in by the mosquito is digested in the mid-gut by digestive enzymes. The blood absorbs digested food from the mid- gut and carries it to its body cells.
In Humans, digested food molecules are absorbed in the small intestine into our bloodstream. The blood then carried digested food molecules around the body to the cells where they are needed.
Is Earths global mean temperature changing? explain your answer the words TREND and FLUCTUATION.
Answer:
Yes the Earths golbal mean temperature is changing.
Explanation:
The global temperature record represents an average over the entire surface of the planet. The temperatures we experience locally and in short periods can fluctuate significantly due to predictable cyclical events (night and day, summer and winter) and hard-to-predict wind and precipitation patterns. The strong warming trend of the past four decades likely reflects a shift from comparable aerosol and greenhouse gas effects to a predominance of greenhouse gases, as aerosols were curbed by pollution controls, according to former GISS director Jim Hansen.
What step would likely be affected if the bacteria are exposed to this antibiotic
Answer:
bacteria subjected to an antibiotics will have their ribosomes inhibited whixh will stop them from synthezing proteins which stops the possibility of reproduction and many other vital functions.
what are the different types of natural selection
Answer:
Types of Natural Selection:
Directional selection
Stabilizing selection
Disruptive or Diversifying selection
Kin selection
Sexual selection
Explanation:
When do light independent reactions occur
Answer:
Light-independent reactions are carried out in three steps, termed Calvin cycle collectively: carbon fixation, reduction reactions and 1,5-bisphosphate (RuBP) ribulosis. Even if the "dark" reactions are called, the Calvin cycle actually does not occur in the dark or at night.
Explanation:
Answer is above
Hope this helps.
Answer:
Light-independent reactions take place in plant chloroplasts. In this process, sugars are made from carbon dioxide.
Explanation:
Which statement describes renewable resources?
Answer:
What are our options? What are the possible answers?
How could the basic compounds necessary for life have been formed on early Earth
Answer: The Miller-Urey experiment provided the first evidence that organic molecules needed for life could be formed from inorganic components. Some scientists support the RNA world hypothesis, which suggests that the first life was self-replicating RNA.
Explanation:
Simple organic compounds might have come to early Earth on meteorites.
how can you prevent transmission of cholera from a patient to a healthy person?
Description:
To prevent transmission of cholera from a patient to a healthy person you should use safe water meaning clean water. Wash your hands with clean water with soap. Also cook food well mostly see food including fish
Answer:
Use safe water
Wash your hands with soap and clean water
Cook well mostly see food including fish
Please mark brainliest
Hope this helps.
PLEASE HELP I WILL MARK BRANLIEST!!!!!!!!!!!!!!!
Convection currents, which may be the driving force for the movement of plate tectonics, are mostly found in Earth’s
a.)Crust
b.) Mantle
c.) Outer Core
d.) Inner Core
Answer:
It would be the mantle my dude
What is the role of the MCR1 gene in determining a populations fitness for survival
I need to know what the answer is to this question.
Answer:
the M Phase
Explanation:
Chemotherapy utilizes chemicals that disrupt various parts of the cell cycle, targeting rapidly growing cells. A drug called Taxol is one such drug that prevents the mitosis phase from taking place
This part of the nervous system regulates involuntary actions such as
heart function, blood pressure, breathing, digestion.
The autonomic nervous system (ANS) is in charge of controlling involuntary processes such as digestion, respiration, blood pressure, and heartbeat. The sympathetic and parasympathetic nervous systems make up its two divisions.
Through the "fight or flight" response, the sympathetic nervous system prepares the body for emergency situations. It speeds up the heartbeat, constricts blood vessels, widens the airways and releases stress hormones. These responses improve physical ability and preparedness for potential threats.
In contrast, the parasympathetic nervous system encourages relaxation and energy conservation through the "rest and digest" response. It promotes digestion, lowers heart rate, and promotes restorative and recovery processes.
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what process carried out by microorganisms in the carbon cycle releases carbon dioxide into the atmosphere
Answer: cellular respiration
Explanation:
Why are food regations important
They are important because so people do not get sickness
Answer:
The general purposes of U.S. food law are to minimize the risk of unsafe food (it is too costly to assure that food is safe).
Explanation:
Food safety standards and regulations are essential to ensure food is safe at all points along supply chains in both international trade and within nations.
Please help with this
what type of unit is unit of speed?
Answer:
the correct answer is The SI unit of speed is metre per second, but the most common unit of speed in everyday usage is kilometre per hour or, in the US and the UK, miles per hour.
Explanation:
I glad to help you!!!!!!!!!!
Answer: the and is M/S
Explanation:
What is the function of the start codon of an mRNA sequence? A. The start codon protects the mRNA from being degraded. B. The start codon acts as a checkpoint in the eukaryotic cell cycle. C. The start codon signals for the ribosome to release the mRNA sequence. D. The start codon signals for the ribosome to begin assembling amino acids at that point in the mRNA sequence. Mark for review (Will be highlighted on the review page)
Answer:
It's D
Explanation:
The start codon signals for the risbosome to begin reassembling amino acids at the point in the mRNA
Answer:
The start codon signals for the ribosome to begin assembling amino acids at that point in the mRNA sequence.
Explanation:
which part of the body contains enzymes that break down starch into sugar
Answer:
In the human body, amylase is predominantly produced by the salivary glands and the pancreas. Although salivary and pancreatic amylases are similar, they are encoded by different genes (AMY1 and AMY2, respectively) and show different levels of activity against starches of various origins [10].
Explanation:
The air we inhale contains less than 1% carbon dioxide.
Approximately what percentage of carbon dioxide is there in the air we
exhale?
A) 1%
B) 4%
C) 16%
D 20%
Answer:
B.4%
Explanation:
Will mark brainliest for the most answer!!! This is all easy photosynthesis y8 work pls help!! Do as much as u like but plz do help
Answer:
Roots act like straws absorbing water and minerals from the soil. Tiny root hairs stick out of the root, helping in the absorption. Roots help to anchor the plant in the soil so it does not fall over. Roots also store extra food for future use.
The various functions of water in plants include: maintaining cell turgidity for structure and growth; transporting nutrients and organic compounds throughout the plant; comprising much of the living protoplasm in the cells; serving as a raw material for various chemical processes, including photosynthesis;
The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
A plant has two organ systems: 1) the shoot system, and 2) the root system. The shoot system is above ground and includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any).
Tissues are further arranged or combined into organs that carry out life functions of the organism. Plant organs include the leaf, stem, root, and reproductive structures. The first three are sometimes called the vegetative organs and are the subject of exploration in this chapter.
Roots keep a plant in the ground. They also take in water and nutrients from the soil.
Leaves absorb sunlight, and make food for the plant by photosynthesis. ...
The stem supports the leaves and flowers. ...
Reproductive organs allow a plant to produce new plants.
Explanation: