Answer:
Natural history is a domain of inquiry involving organisms, including animals, fungi, and plants, in their natural environment, leaning more towards observational than experimental methods of study. A person who studies natural history is called a naturalist or natural historian.
where does the most photosynthesis on earth occur
Answer:
Chloroplasts in Green Plant Cells
The most important part of photosynthesis occurs in the chloroplasts. These small photosynthesis factories buried within the leaves house chlorophyll, a green pigment secreted in the chloroplast membranes.
Explanation:
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which molecule do indole positive bacteria cleave to form indole
In indole-positive bacteria, Tryptophan is used to form indole. This reaction is catalyzed by a tryptophanase enzyme.
Tryptophanase or tryptophan indole-lyase is an enzyme that catalyzes the reversible beta-elimination of Tryptophan to form indole.
Tryptophanase is present in many Gram-negative bacteria.
The indole-positive bacteria include Escherichia coli, Haemophilus influenzae, Aeromonas hydrophila, A. punctata, Bacillus alvei, Klebsiella oxytoca, etc.
On the other hand, the indole test is a test used to determine the ability of bacteria to convert tryptophan into indole.
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most of the species that are yet undiscovered are probably
5. Plant cells contain structures that carry out specialized energy-transfer functions that animal cells
do not carry out. Which of the following structures carries out this specialized function in plant
cells?
a. Lysosome b. Chloroplasts c. Mitochondria d. Central vacuole
Answer:
b. chloroplasts
Explanation:
chloroplasts convert engergy from the sun into energy in sugar
the four kingdoms and example
how would you revise for a biology test?
any tips?
Create a Revision Guide and Summarise. ...
Spaced Repetition. ...
Make Difficult Topics Fun. ...
Create Accompanying Visuals. ...
Practice Past Papers. ...
Leverage Study Groups. ...
Create and Use Flashcards. ...
Revision and Memory Games.
A chemical reaction in which molecules combine by removing water
O Hydrolysis
O Water-removal connection
O Dehydration reaction
Answer:
Hydrolysis
Explanation:
Also known as condensation, it is a chemical reaction involving the joining together of two molecules with the removal of a molecule of water. Molecules which are formed in this way can usually be broken down by the addition of water molecules, a process known as “hydrolysis.” A chemical reaction involving the removal of a water molecule.
Answer:
The first one.... Hydrolysis.
Explanation:
Certain molecules can be joined by the removal of water in a process called:
hydration... hydrolysis...neutralization... and condensation.
identify three things that you think would be most effective in reducing the population growth rate in Niger, and explain how each thing will decrease population growth rates.
the individual features of all organisms are the result of
Answer:
Explanation:
Genetics and the environment
How can Earth’s layers be defined? Select the two correct answers.(1 point)
by their chemical compositions
by their physical properties
by their proximities to the core
by their amounts of land area
by their asthenospheres
Answer:
By their chemical composition
By their asthenospheres
Explanation:
The earth's layers can be defined with the help of the following facts:
By their chemical compositions. By their physical properties.Thus, the correct options for this question are A and B.
What are the different layers of the earth?The structure of the earth is generally categorized into four major layers. They are as follows:
The crust.The mantle.The outer core.The inner core.Each of the above-mentioned layers has unique chemical composition. Apart from chemical composition, the physical state is also important when describing the different layers of the earth. The concentration of iron is found to be the highest in the core regions along with a little bit of nickel.
Therefore, chemical composition and physical properties are the two parameters that are used to define the different layers of the earth. Thus, the correct options for this question are A and B.
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Which of the following has the most potential energy?
A. Melted ice cream
B. Two scoops of ice cream
C. A milkshake
D. A smoothie
Answer:
option c is the correct answer of the question
Which cel structure is represented by B
Answer:
Estructuras subcelulares: Son los organelos celulares y las biomoléculas incluidas en cada uno de ellos , porque las sintetizan o las utilizan en la función que separadamente o en conjunto realizan. Ejemplos: ribosomas, mitocondrias y más. Una de las características de la materia viva es su capacidad de organizarse.
Answer:
Ribosomes
Explanation:
Ribosomes are the cel structures represented by B.
Por qué el melanismo industrial es un tipo de selección direccional
El melanismo industrial es el fenómeno genético por el cual lepidópteros que viven en zonas industriales tienen un color oscuro. Este fenómeno se debe a que la selección natural favorece un determinado genotipo.
La selección natural es el principal mecanismo por el cual las especies y los organismos evolucionan (cambian) para adaptarse a su ambiente.
La selección natural se define como la supervivencia y reproducción diferencial de los individuos mejor adaptados a su ambiente.
Este proceso (selección natural) tiende a modificar las frecuencias de génicas (alélicas) y genotípicas las cuales determinan los rasgos adaptativos a lo largo de las generaciones.
La selección direccional es un tipo de selección natural que tiende a favorecer a un sólo alelo a lo largo del tiempo.
En el melanismo industrial, los lepidópteros (polillas) que expresan el alelo que codifica para el rasgo fenotípico 'color oscuro' se ven favorecidos porque esta característica les permite mimetizarse en un entrono ambiental oscuro causado por la polución ambiental de zonas industriales.
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how did we get from a few thousand cells to more than a million
Answer: doubling by binary fission
Explanation:
Which of the following characteristics does an animal cell have that a plant cell does not have?
a cell wall
a vacuole
lysosomes
chloroplasts
Answer:
Plants cells do not have lysosomes
How would you expect the rate of an enzyme-controlled reaction to change if the temperature was raised from 35 °C to 55 °C? Explain your answer.
HELP ME ASAP BRAINLEST
what amoeba cells do and where are they?
Answer:
Amoeba cells catch food and move about extending fingerlike projections of a colorless material called protoplasm and are found in decaying bottom vegetation of fresh water streams and ponds
What differences exist between prokaryotic and eukaryotic
cells?
SELECT ALL THAT APPLY
a) capsule
b) ribosomes
c) size
d) pili
Answer:
A)B)andD)
Explanation:
i thought i was right and looked it up to be sure
Somebody help me please
Answer:
they lower the activation energy of reactions
Name one type of food that is made from glycerol and fatty acids.
Answer:
Fats and oils are esters of glycerol and three fatty acids. ... Other animal and vegetable fats contain predominantly longer-chain SFAs (more than 14 carbons in length) and are found chiefly in meats, butterfat, and some vegetable oils.
Explanation:
Fats and oils are esters of glycerol and fatty acids.
Einsteins Theory of Relativity can be
supported with evidence of light doing
what around the sun?
bending.
Answer:
Einsteins Theory of Relativity can be
supported with evidence of light doing
what around the sun?
In 1919 observation of a solar eclipse confirmed Einstein's prediction that light is bent in the presence of mass. This experimental support for his general theory of relativity garnered him instant worldwide acclaim. ... This has been measured directly and also through the gravitational redshift of light.
Answer:
The Earth moves around the Sun, due to the Sun's gravity. ... According to Newton's theory, the Earth should know immediately that the Sun had disappeared. But Einstein said that couldn't be right. Because, according to him, nothing can travel faster than the speed of light — not even the effects of gravity.
Explanation:
•Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same•for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels, according to Wired.
•Essentially, Einstein thought space and time were intertwined in an infinite “fabric,” like an outstretched blanket. A massive object such as the Sun bends
What aspect of a muscle cell allows
movement in the body?
Answer:
Skeletal muscle is attached to bones and its contraction makes possible locomotion, facial expressions, posture, and other voluntary movements of the body. Forty percent of your body mass is made up of skeletal muscle.
Explanation:
motor proteins are responsible for moving vesicles and organelles within the cell. motor proteins move along protein "tracks." in the example shown in the visualizing figure, what are those tracks made of?
Answer:
actin
Explanation:
Please heeeeeeeeeeeeelp
Answer:
i think the one u picked was correct
Explanation:
what is the difference between weathering and erosion
I need a short answer asap
HELP PLEASEEE
Which statement BEST describes the proper procedure for patient identification?
A: Gather patient data and compare it to their history.
B: Approach the patient and ask them their name.
C: Check the information in their chart or orders against their wrist band.
D: Have the patient fill out a questionnaire so the information can be cross checked.
Answer:
A
Explanation:
When you gather the patients data it will help to know its inherited or what
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Environmentalists claim that climate change could lead to major biological change on Earth. Which of the following statements supports the biological predictions related to climate change?
A Sea levels will fall, causing migration of 50% of the world's human population.
B Carbon dioxide levels and temperature changes are direct related in the studies.
C Studies show that atmospheric carbon dioxide has increased over the past 150 years.
D The distribution of many organisms has already shifted as a result of warming.
Answer:
your answer might be B
Explanation:
im not sure if im right if im wrong im sorry for any inconvenience i caused
Why are different types of cancers named based on where in the body they originate (breast cancer, skin cancer, bone cancer, etc.)? Why does it matter from which organ or tissue type the cancer developed?
Answer:
Cancer is caused by abnormal cell division. However, a skin cell is different from a bone cell. Because of that, the cancers that can occur behave differently.
Explanation:
which machines use principles of slopes A . wheelbarrow B.crowbarC.pulley D.claw hammer E.ladder F.stair case G.contour roads
Answer:
Ladder, Staircase, Wheelbarrow,
Explanation:
What are the components of a lipid?
a. Lipids are made of made of carbons bound to hydrogen and oxygen groups; these often form high-energy ring structures
b. Lipids are made of long chains of carbons bound to hydrogens, called hydrocarbons
c. Lipids are made of carbons bound to hydrogen, oxygen, nitrogen, and phosphorous groups; these are often bound into single and double-ring structures
d. Lipids are made of carbons bound to hydrogen, oxygen, and nitrogen groups; the unequal sharing of electrons around the oxygen (carboxyl) and nitrogen (amino) groups cause the molecule to fold up on itself and form different shapes that affect the function of the molecule in the living organism
Answer: D
Explanation:
Lipids are made of carbons bound to hydrogen, oxygen, and nitrogen groups; the unequal sharing of electrons around the oxygen (carboxyl) and nitrogen (amino) groups cause the molecule to fold up on itself and form different shapes that affect the function of the molecule in the living organism.