to test for lipid is heat needed????????
Answer:
No
Explanation:
Place two spatulas of the food sample into a test tube or 1 cm3 if the sample is liquid.
Add 2 cm3 of ethanol to the tube. Cover the end of the tube and shake the tube vigorously.
Allow the contents to settle.
Pour the liquid from the top of the mixture into a test tube half-filled with water.
Record the level of the food and whether the water is cloudy or clear.
As you can see no heat is needed
1. What are the end products of photosynthesis?
2. What is Transpiration ?
3. What are the signifance of transpiration ?
4. Give One example for each of the following modified leaves:
a. Leaf Tendrils.
b. Spines
c. Scale Leaves
5. Give some names of insectivous plants.
6. Define Vegeative Propogation ?
Please help me asappp !! Now I need help :)))
Answer:
1. Glucose And Oxygen.
2. Transpiration is the process by which water is lost in the form of water vapour by evaporation from the surface of leaves and other serial parts of plant .
3. A. Cooling Effect : The water keeps on evaporating from the leaf surface during transpiration . The heat required for evaporation of water is obtained from the plant itself and thus, the plant cools itself when it is hot outside.
B. Transpiration Pull : As water evaporates from the leaf surface, the roots pull up more water from the soil to make up for the water loss during transpiration .As a result, important mineral salts are also brought along with the water. These salts are necessary for the growth of the plant .
4. Leaf Tendrils : Sweet Pea
Spines : Cactus
Scale Leaves : Onion
5. Pitcher Plant, Venus FlyTrap, Blodderwort
6. Normally plants propogate with the help of seeds contained in the fruits . But some new plants may also be produced from other part of the plant such as the roots, stems, and leaves . This type of reproduction is called vegetative propogation .
E.g. = Bryophyllum .
Explanation:
Hope it works out !!The specific purpose or place for an organism within an environment is called their what?
a.population
b.limiting factor
c.abiotic factor
d.niche
From where do most producers get energy?
1. the sun
2. decomposers
3. consumers
4. other producers
Answer:
Energy is the ability to do work. ... The energy of the sun is first captured by producers (Figure below), organisms that can make their own food. Many producers make their own food through the process of photosynthesis. The "food" the producers make is the sugar, glucose.
Explanation:
hope this helps you :)
puggle is a type of dog first produced by mating two other types of dog, a pug and a beagle. This process is an example of
Answer:
hybridation. Puggle is a combination of two different species of dogs and the process of combining two different species to produce a new species is known as hybridation.
In desert plants, rate of water loss gets reduced due to the presence of
Answer:
In desert plants, rate of water loss gets reduced due to the presence of cuticle.
Explanation:
Cuticle are protective, hydrophobic waxy covering produced by epidermal cells of leaves, young shoots and other aerial parts. It minimises the water loss through transpiration (with the help of stomata) and also reduces pathogen entry.
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what is a placebo or a placebo effect
Number 2 is the one that needs to be answered
Answer:
2. The US uses far less renewable energy than most other countries.
Explanation:
US uses very less renewable entgy in comparison to other countries because of several reasons such as:
overall cost of renewable energy is very high.limitations to geography.can cause pollution, such as biomass.fossil fuels are more reliable as do not depend on other environemntal fluctuations such as solar light.Hence, the correct option is 2.
list the differences between saturated and unsaturated fats
Answer:
Unsaturated fats, which are liquid at room temperature, are different from saturated fats because they contain one or more double bonds and fewer hydrogen atoms on their carbon chains.
Explanation:
What combination of sex chromosomes is shown in the image?
1.
A. XXY
B. XY
C. XX
D. YY
Answer:
xy is the answer of your question
Answer:XY
Explanation:
During replication, which sequence of nucleotides would bond with the DNA sequence ATCAG?
Answer:
TAGTC
Explanation:
There are four different nucleotides in DNA: adenine, thymine, cytosine and guanine.
The bases pair like so:
A with T (adenine with thymine)
C with G (cytosine with guanine)
The DNA sequence given is :
ATCAG
Match As with Ts, Ts with As, Cs with Gs and Gs with Cs.
The sequence of nucleotides that would bond with the sequence above is:
TAGTC
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16. Assume that you drop a rock from the top of a tall cliff and it takes 3 seconds for the rock to fall to the bottom of the cliff. What is the rock’s velocity when it reaches the bottom? How do you know?
17. When you shoot an arrow at a target, why should you aim above the bull’s eye if you want the arrow to hit the bull’s eye?
Answer:I think it is 29.4
Explanation: Earths gravitational pull is 9.8m/s and multipky that by three to get 29.4.
Im doing the same test :)
Put the steps of seafloor spreading in order from first to last.
Magma hardens
Magma pushes upward.
A crack forms
Rock moves outward.
Answer: a crack forms, magma pushes upward, rock moves outward, magma hardens.
I know this 100% fact
Explanation:
Answer:
Crack forms, Magma pushes upwards, Rock move outward, Magma hardens
Explanation:
:,D
The diagram provides an overview of how dialysis works. Using this model as an example, explain how the diyalysis machine performs the function that's normally performed by the kidneys
Answer:
The main job of a kidney is to filter toxins and waste products from the blood. In dialysis, the machine takes in blood from the artery and pumps it through a semipermeable membrane. This function is similar to that of the capillaries in the kidney. They allow waste products to filter from the kidneys. The waste excretes into a bag in a manner similar to how the bladder excretes urine from the body. The clean blood pumps back into the body and is carried back to the heart via a vein.
Explanation:
that's the answer that shows when you submit it
Mention three importance of soil organisms.
Explanation:
soil organisms which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms play an important role in maintaining fertility structure drainage and aeration of soil
Why is there more nitrogen than oxygen in the air?
Answer:
Nitrogen is a stable gas and doesn't want to react to anything. When you breathe in air, you breathe in nitrogen along with oxygen. However, as oxygen gets absorbed into your body, since nitrogen is stable, you breathe it back out, leaving more nitrogen in the air.
What contracts to pump blood out of the heart? the atria the veins the ventricles the arteries
Answer:
the ventricles
Explanation:
How are viruses different from bacteria?
Answer:
Your correct answer is option A. Viruses contain only RNA
Explanation:
Viruses are smaller than any bacteria. In fact, the largest virus is actually way smaller than the smallest bacterium ever. All viruses have a protein coat and a core of genetic material of either RNA or DNA. Unlike bacteria, viruses can't survive without a host. They can only reproduce by attaching themselves to the cells. In most cases, they definitely reprogram the cells to make new viruses until the cells burst and die. In other cases, they turn normal cells into malignant or cancerous cells. Also unlike bacteria, most of the viruses do indeed cause disease and they are quite specific about the cells they attack.
The correct statement that highlights the difference between viruses and bacteria is "Viruses cannot survive outside a host." The correct option is B.
Viruses are obligate intracellular parasites, meaning they require a host cell to carry out their life cycle.
They do not possess the necessary cellular machinery or metabolic processes to replicate on their own.
Viruses invade host cells and hijack their cellular machinery to reproduce.
When a virus infects a host, it injects its genetic material into the host cell.
The viral genetic material then takes control of the host cell's machinery and directs it to produce new virus particles.
Viruses can have either RNA or DNA as their genetic material, but not both. Viruses have RNA genomes, while others have DNA genomes.Viruses are significantly smaller than bacteria. Viruses are typically composed of a nucleic acid core (either RNA or DNA) surrounded by a protein coat called a capsid. Viruses are not cells and do not have cellular structures. They are considered acellular particles because they lack the essential characteristics of living organisms.Thus, the correct option is B.
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How does osmoregulation take place in trout fish?
Answer:
The gills actively uptake salt from the environment by the use of mitochondria-rich cells. some marine fish, like sharks, have adopted a different, efficient mechanism to conserve water, osmoregulation. they retain urea in their blood in relatively higher concentration.
Explanation:
PLEASE HELP ASAP!
Water conservation is an important issue for many reasons. One factor is that water conservation preserves and protects our natural resources. Conserving water means more water is available to serve additional water needs, as well as for wildlife and recreation. Water conservation practices can result in lower wastewater discharges which can mean an improvement in overall water quality. Conserving water diminishes our need to find or build new water sources, leaving them in reserve for our possible later use. Preservation does result in
A) lower algae levels
B) reduction in industry standards
C) slowing the building of new housing
D) lessening the need to find new water sources
Answer:
i believe the answer is D) lessening the need to find new water sources
An earthquake originated in New York State. The P-wave travel time for this earthquake was recorded in the data table below for four widely separated seismic stations, A, B, C, and D If the first P-wave arrived at seismic station A at 10hrs:22min:30sec, what was the origin time for the earthquake?
The provided question is incomplete as it lacks the essential information to give answer. however, the complete question is attached as image.
Answer:
The correct answer is option : c. 10hrs: 14min: 10sec.
Explanation:
The question provides the following information to answer the question:
The P wave takes time to reach Seismic station A = 8 min:20 sec
P-wave arrived at seismic station A at : 10hrs:22min:30sec
So, the origin time of earthquake would be: 10hrs:22min:30sec - 8 min:20 sec = 10hrs: 14min: 10sec.
Thus, the correct answer is : 10hrs: 14min: 10sec.
Why does a predator kill its prey, when a parasite rarely kills its host?
Answer:
Usually, parasites are much smaller than the host is, whereas predators could be either small or larger than the prey. Parasites have a very high reproduction rate but the predators reproduce slowly.
Explanation:
What does polymerase chain reaction (PCR) do?
Answer:
Makes more copies of a sample of DNA
Explanation:
Apex
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Which information would a population ecologist include when conducting a study? CHOOSE 2 ANSWERS!!!
A - birth rate of species
B - structure of organisms
C - reproduction system of animals
D- average number of prey animals consumed by a predator
Answer:
a and d
Explanation:
the birth and death rates are important, they are they numbers in which a population is
Answer:
a and d
Explanation:
What happens to a population if its growth exceeds its carrying capacity?
Why can an HIV infection not be treated by antibiotics?
Answer:
because HIV is a virus and antibiotics treat bacterial infections.
Explanation:
please give me brainliest
Answer:
HIV is a viral rather than bacterial disease, so antibiotics cannot be used to treat it directly. But because the virus disrupts the body's own disease-fighting immune system, antibiotics critical for treating patients infected with HIV.
Explanation:
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well..you know what i mean : )
please I need help to answer these questions
Answer:
B. Directional Selection
Explanation:
By doing some research I found out what most of this means so let's do my favorite process, the process of elimination
A. Disruptive
Disruptive selection produces two or more species with two different traits nothing in the question says two different scorpions where formed one with big pinchers and another with big stingers no it just talks about them slowly forming big pinchers
C. Stabilizing
Stabilizing selection is when two species are produced with more similar traits nothing vastly different, I would consider them forming really big pinchers to be an extreme
what are the monomers of carbohydrates
Answer:
Monosaccharides are the monomers that make up carbohydrates. Glucose is an example of a monosaccharide. Glycerol and fatty acids are the monomers that make up lipids. Nucleotides are the monomers that make up nucleic acids.
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Explanation:
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If a mutation in a gene does not result in a change in protein function, the resulting effect is most likely to be
A.) Neutral
B.) Beneficial
C.) Harmful
D.) None of the above
2 Points
Which example involves a cell membrane receiving and sending messages?
O A. A fox chases a mouse through the forest.
O B. A cell tells other cells that danger is near.
O C. A transport protein allows glucose to enter a cell.
O D. A cell membrane allows water to enter the cell.
Answer:
C.
Explanation:
A cell membrane is selectively permeable with certain molecules, such as Glucose.
