Answer:
B. Enzymes decrease the activation energy of the reaction :)
Explanation:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Amoebas obtain food by wrapping the cell membrane around the food particles, creating a vesicle. The food is then brought into the cell. This process is known as ____________.
a. photosynthesis
b. exocytosis
c. endocytosis
d. osmosis
Answer:
endocytosis
Explanation:
Endocytosis is a cellular process in which substances are brought into the cell. The material to be internalized is surrounded by an area of cell membrane, which then buds off inside the cell to form a vesicle containing the ingested material.
Answer: Your answer is: C. (endocytosis)
Explanation:
A collection of stars, dust, and gas bound together by gravity is... a. universe b. solar system c. planet d. galaxy explain why for every answer PLEASE I NEED THIS NOW IT IS DUE TODAY!!!!!!!!!!!!!
A collection of stars, dust, and gas bound together by gravity is called galaxy.
What is galaxy?A galaxy is a collection of stars, dust, and gas bound together by gravity. Galaxies vary in size and shape, and can contain anywhere from a few hundred million to trillions of stars. They also contain other celestial objects such as planets, asteroids, comets, and nebulas. The Milky Way, in which our solar system is a part of, is an example of a galaxy.
A universe is the entirety of everything that exists, including all matter, energy, space, and time, including all galaxies, stars, and all other forms of matter and energy.
A solar system is a group of celestial bodies that orbit around a star, including planets, moons, comets, and asteroids. The sun and all the objects that orbit it, including Earth, are part of the solar system.
A planet is a celestial body that orbits around a star, is spherical in shape and has cleared its orbit of other debris. They do not emit light and heat like stars do, but rather, reflect the light and heat of their host star.
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What has happened to our system of classification as technology has become more
advanced?
Answer:
Technological advances have had a huge impact on biological classification systems overtime, providing new information on biological connections between species past and present.
Explanation:
What does density mean to you?
explain how sea floor spreading affects the earths crust
Wolves prey heavily on beavers in a temperate forest ecosystem. The diet of beavers consists of the leaves, branches and bark from trees, as well as many types of aquatic vegetation. In this relationship, what is the role of the wolves? A producer B decomposer C primary consumer D secondary consumer
Answer:
In this relationship , the role of wolves is as Secondary Consumers .
Explanation:
A PRODUCER - Producers are referred to as an organism that prepares its own food. Often, they are called autotrophs.
All the green plants, for example.A DECOMPOSER -: Decomposers are organisms which break down organisms and waste that are dead or decaying. Their function is ecologically important as they recycle the nutrients through a natural biological process (decomposition).
Fungi and bacteria that derive their nutrients from dead plant or animal matter are examples of decomposers.PRIMARY CONSUMERS -: Typically, primary consumers are herbivores-animals that eat plants. Since they have to eat other items to survive, they are called heterotrophs. This is different from farmers who make their own food and are autotrophic.
Insects, mice, and deer are common examples of this type of product.SECONDARY CONSUMERS -: The secondary consumers are species that eat energy from the primary consumers. Only other animals eat carnivores, and omnivores both eat plant and animal matter.
You can find secondary users, such as dogs , cats, moles, and birds, in temperate areas , for example. Foxes, owls, and snakes are other examples. Examples of secondary consumers that receive their energy from primary consumers by scavenging are wolves, crows, and hawks.In the given foodchain , the wolves are consuming beavers as their food and beavers consume leaves , branches and twigs as their food. Therefore , it is cleared from the above definations , that leaves and branches consumed by the beaver are producers(as they are the part of plants ) , the beavers are herbivores dependent on green plants , so they are primary consumers and the wolves who are preying on beavers are secondary consumers as they are carnivores .
Hence, the correct answer is OPTION D.
1. 1 Water makes up between 70-90% of the weight of most life forms, and nearly all chemicals present in living matter are soluble in it. Water is such a good solvent because the molecular structure of a water molecule is polar, having a negative charge at one end and a positive charge at the other end. Which model best represents a water molecule? A. B. C. D.
Answer:
The correct model is D.
Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.
Explanation:
A water molecule is composed of one atom of oxygen and two atoms of hydrogen.
A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.
The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.
Movement of materials into and out of cell from high to low is called.....
Answer:
Diffusion. The net movement down a concentration gradient, from high to low concentrations.
Explanation:
NEED HELP!
What are some of the components of a rainforests ecosystem and how they interact?
Answer:
The lives of animals and plants are intertwined. ... Nutrients in rain forests are found mainly in living plants and the layers of decomposing leaves on the forest floor. Various species of decomposers, such as insects, bacteria and fungi, convert dead plant and animal matter into nutrients, according to Rainforest Biomes.
A student plays tennis several times a week. She notices that the tennis ball seems to bounce higher
on some courts than on other courts. She wonders if this has something to do with the surface of the
court. Design an experiment to see if her hypothesis is correct. Include these elements in your
response:
• State the hypothesis.
• Identify the factor to be varied.
• Identify two factors that should be held constant.
Answer:
hypothesis Ball bounces higher on asphalt than concrete, factors to be varied asphalt court and concrete court, constant tennis ball and height dropped from.
Loretta and her friends want to find out which of their pets can run the fastest. Which kind of scientific investigation should they use?
A.
a controlled experiment
B.
development of a model
C.
a review of existing work
HELP HELP PLEASE!!!!!!!
Explanation:
Issen Sengeki... Messatsu!
The answer is 2.
"Weakness is a disease... I am the cure! When I walk, I walk alone. When I fight, I fight alone. The path of a weak coward is into the bowels of hell! Death is the only destination for life. Better die a free brave man."
- Akuma
choose your favorite animal to use for your organism.
Recorded the following information the name of the organism, where it lives,
what it eats, and what eats it.
Create a food web depicting the feeding relationships between all organisms, write a paragraph explaining the flow of energy through a food web, write a paragraph explaining the flow of matter through a food web.
Answer:
panda. Eastern and Southern China. birds or rodents
Explanation:
a Rodent eats bamboo and a panda eats a rodent. A leopard eats a panda.
A beetle eats grass. A fish eats the beetle. The panda eats the fish
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black, what is your guess for the total number of marbles?
Answer:
400 marbles
Explanation:
The total number of marbles should be 400.
Given that,
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black.Based on the above information, the calculation is as follows:
[tex]= 100 \times 4[/tex]
= 400
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The surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable. How does the biomolecule that makes up this surface differ from other biomolecules?
It is made up of long chains of fatty acids.
It is made up of polymers of monosaccharides.
It is made up of long chains of nucleotides.
It is made up of polymers of amino acids.
Answer:
The surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable. How does the biomolecule that makes up this surface differ from other biomolecules? It is made up of polymers of amino acids. It is made up of long chains of fatty acids.
Explanation:
The biomolecules that make up this surface of leaves differ from other biomolecules by the fact that they are made up of long chains of fatty acids. Thus, the correct option is A.
What are Biomolecules?Biomolecules may be defined as those types of molecules that are significantly present in the body of living organisms and are required to perform essential functions like cell division, morphogenesis, or development.
The long chains of fatty acids typically consist of a hydrophobic arrangement that prevents the movement of water from one part to the other. This specific property of forming a water barrier is only present in fatty acids.
Due to this, the surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable, which means to prevent the migration of water.
Therefore, the correct option for this question is A.
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A reaction done at 100°C without catalysts has the reactant concentration graph shown below. What is the most likely reactant concentration graph for a reaction done at 125°C?
Answer:A
Explanation:
The most likely reactant concentration graph for a reaction done at 125°C is "A".
What is the catalyst?A substance that enables a chemical reaction to move at a usually faster rate or under different conditions (such as at a more low temperature) than otherwise possible.
Thus, option "A" is correct.
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4) Complete the Venn diagram by identifying common or isolated characteristics (Note "B" identifies RNA!).
(choose A, B, or C for the following)
(A = DNA B = RNA C = both)
1.)_____sugar=deoxyribose
2.)_____double helix strands
3.)_____thyamine
4.)_____adenine
5.)_____guanine
6.)_____cytosine
7.)_____sugar=ribose
8.)_____single genes strand
9.)_____uracil
10.)_____genetic blueprint
Answer:
1.)___A__sugar=deoxyribose
2.)__A___double helix strands
3.)__A___thyamine
4.)__C___adenine
5.)__C___guanine
6.)__C___cytosine
7.)__B___sugar=ribose
8.)__B___single genes strand
9.)___B__uracil
10.)___C__genetic blueprint
Explanation:
Deoxyribose sugar is present only in the DNA molecule whereas in RNA molecule the sugar found is ribose sugar. DNA molecule is generally found in a double-stranded helical form that consists of adenine, guanine, cytosine, and thymine bases.
In RNA molecule there is all bases present that found in DNA instead of thymine, RNA has uracil in place of thymine. Both nucleic acids are known as the genetic blueprint of organisms as they contain genetic codes or information.
Which statement is true about Earth's outer core? A. It is believed to be made mostly from copper deposits. B. It is the outermost layer of the planet. C. It is composed of liquid metal. D. It is the thinnest layer of the planet.
Answer: c
Explanation: makes sense
The Earth's outer core is mainly composed of the liquid metals such as iron and nickel. Thus, the correct option is C.
What is the outer core of the Earth?The outer core begins approximately in the range of 2,889 km or 1,795 miles beneath the Earth's surface at the core-mantle boundary of the Earth and ends at 5,150 km or 3,200 miles beneath the Earth's surface at the inner core boundary of the Earth.
The outer core of the Earth is mostly composed of liquid iron and nickel. The Nickel and Iron alloy of the outer core is very hot, between 4,500° and 5,500° Celsius temperature. The outer core of the Earth is mostly made up of iron and nickel elements. This alloy is often written as NiFe because it is a combination of their chemical element symbols.
Therefore, the correct option is C.
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ApH of 6 is how many times more acidic than a pH of 9?
Answer:
by 1.5
Explanation:
Which part of a robot converts stored energy into movement?
Actuator: A power mechanism used to effect motion, or maintain position of the robot, by conversion of different energy types, such as electrical or mechanical processes, using liquid or air (for example, a motor which converts electrical energy to effect motion of the robot).
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How many half-lives have passed when there are three times as much daughter isotope as parent isotope?
Answer:
2
Explanation:
1/2=0.5
0.5/2=0.25
0.25:0.75=1:3
If the Sun was larger, do you think there would be more planets or fewer planets? Why?
What kinds of molecules contain the instructions for ordering amino acids in a protein?
a. saturated fatty acids
b. carboxylic acids
c. nucleic acids
d. unsaturated fatty acids
Answer:
C: Nucleic Acids
Explanation:
It was part of my test on gradpoint, just got 100%
interphase-cell appeared to be at _______
Answer:
Synthesis
Explanation:
interphase-cell appeared to be at synthesis phase.
What happens in the synthesis phase?S phase is the phase of the cell cycle in which DNA is replicated, occurring between G₁ phase and G₂ phase. Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase.
S phase (Synthesis Phase) is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Since accurate duplication of the genome is critical to successful cell division.
S phase, or synthesis, is the phase of the cell cycle when DNA packaged into chromosomes is replicated. This event is an essential aspect of the cell cycle because replication allows for each cell created by cell division to have the same genetic make-up.
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What type of organism is an Autotroph?
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.
What does PMLU stands for
Answer:
PMLU stands for Post Mining Land Use
Explanation:
Which of the following correctly lists the Earth’s structural (physical) layers from outer most to inner most? (listed left (outer most) to right(inner most))
A. Asthenosphere, Lithosphere, Mesosphere, Outer core, Inner core
B. Inner core, Outer core, Mesosphere, Asthenosphere, Lithosphere
C.Lithosphere, Asthenosphere, Mesosphere, Outer core, Inner core
D. Lithosphere, Mesosphere, Asthenosphere, Outer core, Inner core
Answer:
its d :)
Explanation:
How does the cell membrane help maintain health in life
Answer:
The cell membrane controls the substances that enter and exit the cell
Explanation:
The cell membrane defines the boundaries of the cell, separating the internal components from the external environment.
The membrane is a semi-permeable barrier that lets some substances in and out, but not others.
Therefore, the cell membrane controls many of the activities of the cell. As a result, it is crucial to maintain the normal functioning of the organism
Describe the function of amino acids
Answer:
amino acids are the building blocks. a large proportion of our cells, muscles and tissue is made up of amino acids, meaning they carry out many important bodily functions, such as giving cells their structure.
Explanation:
brainliest will be appreciated
Answer:
Amino acids are a group of organic compounds that form the building blocks of proteins that make up 75% of the body they are involved in almost every body function!!!
Explanation:
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Why do frogs undergo hibernation?
Frogs are cold blooded meaning whatever temperature it is they adapt to it so during winter they go into s state of hibernation.
