Answer:
31 In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle.
Explanation:Hopefully its right!
PLZ HELP ASAP THANKS
Which of the following is an example of matter?
O A. Energy
O B. Sound
O C. Ideas
O D. Water
Answer: Water
Explanation: Matter is solids, liquids, and gases. Water is a liquid, therefore is an example of matter.
A simple diagram of a DNA molecule is shown below. Which of the following is represented by X?
(photo above)
Answer:
From the diagram X = base pairs
Explanation:
Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.
Nucleotides comprise:
a 5-Carbon deoxyribose sugar, one nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides Thymine and Cytosine (pyrimidine bases) along with Guanine, and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.
Candice is examining a cell under a microscope. She has identified a cell wall, a nucleus, and chloroplast. What type of organism does this cell most likely belong to.
1.plant
2.fungus
3.animal
4.bacterium
Answer:
1. Plant
Explanation:
Only a plant has a cell wall, chloroplast, and nucleus. Since eukaryotes are the only ones with a nucleus, that cancels out bacteria and fungi. Since there is a chloroplast, you can tell that the cell has to be one of an autotroph which gives you plant.
A scientist wants to know why the honeybee population is declining. Which step would the scientist MOST LIKELY do first?
A. Conduct an experiment to see if increased pollution is causing a decrease in the honeybee population.
B. Communicate the question to as many other scientists as possible so that they can discuss it.
C. Observe the problem and make a hypothesis about what is causing it.
D. Research to see if there is already a widely accepted explanation.
Research to see if there is already a widely accepted explanation.
Explanation:
Because if the scientist's problem is already solved and accepted he doesn't have to waste his time .
How can forces be used to predict the movement of objects?
Think in terms of objects experiencing forces in opposite directions.
Answer:
Explanation:
The motion of an object is determined by the sun of the forces acting on it. If the total force on the object is not at zero then it’s motion will change.
Is the fossil record complete for humans? Explain your answer.
When solar energy is more spread out, the sun is at an angle, What happens to the light energy??
Answer:
Explanation:
As the sun angle decreases, light is spread over a larger area and decreases in intensity (energy input per unit area). Figure 4.10 illustrates the effect of changing sun angle on the area illuminated and intensity of heating at different sun angles. hope i helped :)
When plants are closer to sunlight photosynthesis occurs
Answer:
Yeahh
Explanation:
When plants is around the place where the sunlight falls then plants can make their food
answer.
1
A DNA nucleotide consists of three smaller units.
Which type of biomolecule represents one of these
smaller units?
A Carbohydrate
B Lipid
C Protein
D Nucleic acid
Answer: Carbohydrate
Explanation: You may be familiar with the sugar-phosphate backbone, which just serves as structural framework for the DNA strand. Phosphate sugars are carbohydrates that link to phosphates and nitrogenous bases to create a helix.
How do Limiting factors affect biotic potential? Please hurry and help me
Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species.
What does it mean if an organism is multicellular?
Do you know the size of the cell?
Answer:
At 0.1 to 5.0 μm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10 to 100 μm
Explanation:
Answer:
0.1 to 5.0 μm = prokaryotic cells
10 to 100 μm = eukaryotic cells
Hope this helps! :)
A 60kg person climbs stairs of total height of 20m in two minutes.calculate the power delivered.g:10ms
A mother with a blood type of A has a son with
a blood type of B. Which of the following are
possible? Select all that apply.
Answer:
b blood
Explanation:
All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
N
B
solvents
С
plastics
D
pesticides
Answer: A. Minerals
Explanation:
(i’m sorry this is so late)
All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
What are minerals?There has been different kinds of the minerals. A mineral has been simply defined as any pure substance that has known to have the unique composition as well as structure. A rock has been simply known to be the combination or the mix up of the lot of different minerals and may sometimes include only one type of mineral.
It has been formed as the residual result from the parent material that had been undergone prolonged weathering the process. This part of the soil would be determine which has type of the plants has been capable in the absorbing the nutrient in that area and which plants that don't.
Therefore, All of the following can interfere with the breakdown of organic waste material in the soil except minerals. Thus, option A is correct.
Learn more about minerals on:
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True/False- A magnet can be strong enough to erase computer evidence.
Group of answer choices
True
False
Answer:
it could erase a tape but not easily disrupt any hard drive, emphasized "easily" as you would need a very powerful magnet to *destroy it* not erase it.
THANKS TO JESSE PINKMAN
What’s 5 ways water is important for individual organisms?
Answer:
Five reasons water is so important to your health
Water boots energy. Water delivers important nutrients to all of our cells, especially muscle cells, postponing muscle fatigue.
Water helps weight loss. Water helps you feel full longer, without adding any additional calories.
Water aids in digestion.
Water detoxifies.
Water hydrates skin.
Explanation:
What does the letter U represent?
Ribose sugar
Nitrogen base
Phosphate group
Deoxyribose sugar
Answer:
Nitrogen Base
Explanation:
the square is where the bases connect to get different patterns inside your DNA
Seeds that are planted upside down are still able to grow into mature plants. Which explanation
best explains this phenomenon (a)The roots change into branches in the branches turn to roots(b) The roots grow towards the force of gravity and the stem goes away(c)The plant will become a smaller version of a mature plant(d) roots always grow toward the dark and the stem grows toward the light
The explanation that best explains this phenomenon is: the roots grow towards the force of gravity and the stem goes away
WHAT IS GEOTROPISM?The parts of a plant can be divided into shoot and roots. The root of the plant is the part that grows below the ground surface in order to anchor the plant.
When a seed germinates, the root part of that seed grows towards gravity i.e exhibits geotropism while the shoot part grows away from gravity i.e. upwards.
Hence, if a seed is planted upside down, it will still grow into an erect mature plant because the root will grow downwards towards gravity (positive geotropism) while the stem grows upward away from gravity (negative geotropism).
Learn more about gravity at: https://brainly.com/question/1479537
A ball bounces on the ground. How do the ball and the ground act on each other?
Explanation:
It will continue to fall under the influence of gravitational acceleration, but now, a normal force from the ground surface, opposing the force due to gravity, will act on the ball.This all means that the ball is pushing on the ground with a force greater than its own weight, so acceleration must point upward.
Describe the phases of the moon.
Answer:
Here
Explanation:
Answer:
Waxing Cresent ( when the moon is growing in size to reach it's maximum fullness), FIrst Quarter (When the moon is one quarter full), Waxing Gibbous (When the moon is over half full), Full Moon (When the moon is completley full), Waning Gibbous (When the moon is almost half dark), Last Quarter (When the moon is half dark), Waxing Cresent (When the moon is a small cresent shape in the sky), New Moon (When the moon is completley dark)
Explanation:
Hope this helps!! :)
Compare the structure and function of each type of biological macromolecule.
Explanation:
Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules—large molecules necessary for life that are built from smaller organic molecules. Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.
a. Review What are the major elements of life?
b. Relate Cause and Effect What properties of
carbon explain carbon's ability to form different
large and complex structures?
a. Review Name four groups of organic compounds
foundin living things.
b. Explain Describe at least one function of each
group of organic compounds.
c. Infer Why are proteins considered polymers but
lipids are not?
Answer:
1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur.
2. Its ability to catenate; its ability to form bonds easily with other elements such as hydrogen, oxygen and nitrogen; its ability to form single, double and triple.
3. Carbohydrates, Proteins, Lipids, and Nucleic acids
4. Carbohydrate provide energy; Proteins serve as structural elements;
Lipids serve as structural components of membranes;
Nucleic acids store and transmit genetic information
5. Proteins are considered polymers while Lipids are not because proteins are composed of monomeric subunits of amino acids whereas lipids do not have monomeric subunits.
Explanation:
1. The major elements of life are Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus and Sulfur as they are found in many structures of living organisms- in proteins, carbohydrates, nucleic acids and lipids.
2. Carbon has the ability to form different large and complex structures because:
(I) its ability to catenate which is the ability to combine with one another to form straight, branched chain or ring compounds containing many carbon atoms.
(ii) carbon can form single, double and triple with itself and other life elements.
(iii) the relative stability of the covalent bonds formed by carbon.
3. Four groups of organic compounds found in living things are Carbohydrates, Proteins, Lipids, and Nucleic acids.
4. Carbohydrate provide energy; Proteins serve as structural elements;
Lipids serve as structural components of membranes;
Nucleic acids store and transmit genetic information
5. Polymers are large molecular weight compounds built up from subunits called monomers.
Proteins are considered polymers because they are large molecular weight molecules composed of monomeric subunits of amino acids.
Lipids are not considered polymers because individually, they are not very large molecules and do not have monomeric subunits rather are composed of long fatty acids chains linked to a glycerol molecule.
The diagram below shows a sarcomere. If a disorder limits the number of
calcium ions that can bind to actin, what would happen to the sarcomere?
Myosin
Actin
phases
A. The myosin and actin would not separate, and the sarcomere
would remain contracted.
B. The myosin and actin would not separate, and the sarcomere
would be unable to contract.
C. The myosin and actin could not connect, and the sarcomere would
be unable to contract.
O D. The myosin and actin would not connect, and the sarcomere
would remain contracted.
No
Answer:
i would say C. but it is probably wrong. i don't really understand this stuff
The myosin and actin could not connect, and the sarcomere would
be unable to contract.
What is a sarcomere muscle?Sarcomeres are rather stereotyped and are repeated in the course of muscle cells, and the proteins inside them can trade-in periods, which reasons the overall length of a muscle to trade. A character sarcomere consists of many parallel actins (thin) and myosin (thick) filaments.
What is the difference between sarcomere and myofibrils?Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as alternating dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide beyond each other when a muscle contract or relaxes.
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A scientist extracts a molecule from a cell that includes phosphorus, a nitrogen base and a sugar. What macromolecule did the scientist most likely extract to
study?
A. Carbohydrate
B. Protein
C. Triglyceride
D. Nucleic Acid
Answer:
D
Explanation:
The correct answer would be Nucleic Acid.
A typical nucleic acid has 3 components which include:
A purine or pyrimidine nitrogenous baseA phosphate groupA 5-carbon sugarThe purine base includes adenine and guanine while the pyrimidine base includes thymine/uracil and cytosine. The 5-carbon sugar could be ribose or deoxyribose depending on if the nucleic acid is ribonucleic or deoxyribonucleic acid.
The only macromolecule that contains the 3 components of the options A to D is the nucleic acid. Hence, the correct option is D.
Judy used the following soil triangle to identify a sample of soil as silty clay.
Soil texture triangle. Clay soil is approximately 45 percent or less sand, 50 percent or more clay, and 40 percent or less silt. Silty loam soil is approximately 50 percent or less sand, 30 percent or less clay, and 50 percent or more silt. Sandy clay soil is approximately 45 to 65 percent sand, 35 to 55 percent clay, and 25 percent or less silt. Sandy clay loam soil is approximately 45 to 80 percent sand, 20 to 35 percent clay, and 35 percent or less silt.
Which description of soil likely allowed Judy to make this identification? (2 points)
a
Mostly large particles, with a gritty texture, 75% clay, 15% sand, and 10% silt
b
Mostly large particles, with a sticky texture, 65% clay, 10% sand, and 25% silt
c
Mostly small particles, with a sticky texture, 50% clay and 5% sand, and 45% silt
d
Mostly small particles, with a smooth texture, 30% clay, and 25% sand, 45% silt
Answer:
its C
Explanation: I worked it our w/ the triangle and this seemed the most logical answer. plus had the same question on a test ~5min before this post so I know for sure its right.
Soil texture or Soil profiling is referred to as the proportion of primarily three different types of particles, clay, sand, and silt.
The description that is similar to Judy's soil triangle is that most small particles, with a smooth texture, are 10% sand, 50% clay, and 40% silt.
The soil profiling can be explained as:
1. Clay is one of the smoothest and fine particles of the soil. It has a diameter of fewer than 0.2 millimeters. Clay soil is 40% or more is clay, less than 40% is silt, and 45% or less is sand.
2. Sand is a coarse particle and is the largest mineral in the soil. The particle is gritty and has a diameter of 0.05 to 0.02 mm.
3. Silt is found in a high percentage of the soil and gives a smooth texture to the soil.
Thus, the correct answer is Option C.
To know more about soil texture, refer to the following link:
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Root systems are classified as fibrous root systems and taproot systems.
Which property distinguishes the two types of root systems from each other?
A)
the method of water absorption
B)
the branching pattern of the roots
C)
the presence of xylem and phloem
D)
the growth rate of the roots
Answer:
B) the branching pattern of the roots
Explanation:
Plant roots function as anchors, food storage and aid in the uptake of water and minerals- other modifications include gas exchange and chemical signaling.
Root systems are mainly classified as taproots, usually found in dicots or fibrous roots found in monocots - some plants are a varying combination of the two systems. While tap roots consist of a larger, vertical main root surrounded by smaller lateral roots, fibrous roots are typically a dense network of roots that grow near the surface of the soil.
Taproots are thought to be more common in plants inhabiting regions experiencing water scarcity, while fibrous roots are thought to grow in more lush, water-abundant regions.
Examples of these roots systems include...
taproots: dandelions, carrots, turnipsfibrous roots: grasses, cornWhat do bacteria have in common with the cells of other living organisms?
Answer:
Summary. Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.
Measuring Populations (brainliest)
Answer:
I believe your answer would be C: interactions between individuals
Explanation:
Brainliest if this is correct?
Answer:
Letter C, interactions between individuals
Explanation:
Also, I love your profile pic!!
One example of an object or substance the dose not have the property of color