Answer: The four pieces of evidence for Evolution are:
--> Fossil records,
--> biochemical similarities,
--> molecular records and
--> embryology.
Explanation:
Evolution is an extremely slow process. It is difficult to obtain direct evidence of evolution in action. Indirect evidence that supports the theory of evolution has been gathered by scientist from many fields. These evidence include:
--> Fossil records: These are data gotten from the remains of organisms preserved mainly in earth's sedimentary rocks. By arranging the fossils according to their age, from the oldest to the youngest, they have been able to show an evolutionary trend from very simple life forms to complex ones. An EXAMPLE is the evolution of the modern horse (equus) from the dawn horse, eohippu, 60 million years ago.
-->Biochemical similarities: the chemical make-up and biochemical processes of all organisms are very similar. For EXAMPLE, all organisms use the same material and processes for storing, expressing and transmitting genetic information.
--> Molecular records: All organisms store hereditary information in nucleic acids, mainly DNA. In present day evolutionary theory, changes are recorded in these macromolecules by alterations to existing chemical structures. Therefore, the DNA of closely related species should show more similarities than those of distant species. For EXAMPLE, the DNA of humans and Chimpanzees is 98% alike.
--> Embryology: In many cases, the embryo of an organism resembles the embryo of its ancestors during certain very transitory stages of its development. For EXAMPLE, the human embryo has gill slits like a fish at an early stage in its development.
The difference between pinocytosis and receptor-mediated endocytosis is that _____. Question 14 options: pinocytosis can concentrate substances from the extracellular fluid, but receptor-mediated endocytosis cannot. pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity. pinocytosis brings only water molecules into the cell, but receptor-mediated endocytosis brings in other molecules as well. pinocytosis increases the surface area of the plasma membrane, whereas receptor-mediated endocytosis decreases the plasma membrane surface area.
Answer:
The difference between pinocytosis and receptor-mediated endocytosis is that pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity.
Explanation:
Pinocytosis and receptor-mediated endocytosis are two types of endocytosis.
The first one consists of plasmatic membrane invaginations that capture extracellular fluid with different nutrients and sends it to the inside of the cell in vesicles. The second one, receptor-mediated endocytosis, consists of receptors on the outside of the plasmatic membrane and clathrin proteins on the interior side of the membrane. When the receptors are in contact with its specific molecule, a vesicle surrounded by clathrin proteins, is formed transporting specific molecules to the cell's interior.
How does bursting of animal cells take place
Answer:
Swelling and bursting of cells is also known as lysing. This happens when the concentration of solutes inside the cell is greater than the concentration of solutes outside the cell. It has to do with diffusion and osmosis. A high solute concentration relates to a lower water concentration. Since molecules like to diffuse from areas of high concentration to areas of low concentration, water will rush into the cell where the water concentration is lower causing it to swell and lyse.
Explanation:
HELP!!!! What are two ways information is sent to control body conditions?
Why do you think it would be important to know that both sides of the heart receive blood at the same time? Giving Brainliest
Explanation:
The right side of your heart receives blood from the body and pumps it to the lungs. The left side of the heart does the exact opposite: It receives blood from the lungs and pumps it out to the body. If your body didn't do it simultaneously, then blood would overflow your lungs.
Which of these energy transformations is taking place in the chimpmunk when its cells use the plants sugars to carry out cell processes?
Answer:
This question lacks options, the options are:
A. chemical energy -> kinetic energy
B. kinetic energy -> solar energy
C. solar energy -> chemical energy
D. kinetic energy -> nuclear energy
The correct answer is A.
Explanation:
All living organisms need energy to carry out certain processes in their body. This energy is obtained in form of ATP (chemical energy) when their food molecules is broken down via a process called CELLULAR RESPIRATION.
This chemical energy (ATP) is needed to perform cellular processes in the body. According to this question, a chipmunk (animal) will utilize the energy it derives (ATP) from breaking down plant sugars to carry out its cell processes. This means that it will transform CHEMICAL ENERGY → KINETIC ENERGY.
Note that, kinetic energy is the energy due to motion in the Chipmunk.
Suppose one of their children (Ww) marries someone who is also heterozygous (Ww). What kind of hairline will their children have?(
Answer:
3 + 5 = 8
Explanation:
1. The amplitude of a sound's wave determines the sound's
a) pitch
b) loudness
C) speed
d) frequency
Answer:
D, frequency
Explanation:
Answer:
A. frequency
a kind of lipid utilized in synthesis of rubber is: (a) Acylglycerol (b)Waxes (c)Phospholipdis (d)Terpenes
Answer:
Option b) waxes
Explanation:
because it is kind of liquids utilized in synthesis of rubber
What is the independent variable of great white sharks travelling distance?
Answer:
Each year, great white sharks migrate over long distances from their feeding grounds off the central California coast to other feeding grounds far away in the Pacific Ocean. ... That's one reason they migrate from one feeding ground to another, to take advantage of the seasonal bounty.
It's though that a shark can travel up to 50 miles in one day. While we cannot know this for certain as sharks have never been tracked this way, 50 miles is a good estimate
What is the vent in earths surface through which magma and gases are expelled
Answer:
A volcano
Explanation:
Is a vent or fissure in the Earth's surface through which molten rock and gases are expelled. Molten rock is called magma.
Both naturally acquired and artificially acquired immunity are effective ways to gain immunity. Which method is safest?
Answer:
naturally acquired immunity are effective ways to gain immunity.
Explanation:
there is a saying that eat your food like a medicine otherwise you will neex to ead your medicine as food.so food whuch we obtain from nature have many nutritious values than artificially acquired medicine
why are vitamins important to enzymes and what this relationship is called?
The activity of some enzymes requires vitamins. This is because vitamin derivatives contribute to the biochemical mechanisms of these enzymes. These vitamin derivatives belong to a class of molecules known as cofactors, which are organic molecules (called coenzymes) or metallic ions, that assist in the catalytic activity of an enzyme.
Zach is conducting an experiment to observe which type of fertilizer will allow a plant to grow the tallest. He puts three plants in identical pots and places them in the same location. He waters the plants each day with the same amount of water. Then, Zach measures the plant growth and records his observations.
Which of these is the control group in Zach’s experiment?
a) the growth rate of each plant
b) the pot that does not contain fertilizer
c) the type of fertilizer used in each plant
d) the amount of water given to each plant
Answer:
the pot that does not contain fertilizer
Explanation:
Answer: The answer is Pot that does not contain fertilizer
Explanation: I took the test
Ok, do we live in or on earth?
Answer:
On, we live on the surface of Earth.
If we lived in it, we'd be near the core, or literally inside the earth's many layers.
Hope that helps! :)
-Aphrodite
Explanation:
For each condon ,find the correct tRNA
Eukaryotes contain _______________________
A. membrane-bound organelles.
B. toxins.
C. cell lipozyroids
Answer:
A. membrane-bound organelles.
Explanation:
Answer:
A is your answer
Explanation:
Which statement is NOT part of the concept of natural selection?
Individuals that possess the most favorable variations will have the best chance of reproducing.
Genes of an individual adapt to the changing environment.
Variations occur among the individuals in a population.
More individuals are produced than can survive creating competition amongst the members of a group.
Answer:
i think its the first one sorry if im wrong but that one makes the most sense
Explanation:
The mitochondria is an organelle used for the purpose of cell _______________.
a)respiration
b)replication
c)rejuvenation
d)recitation
Answer:
a)respiration
Explanation:
Cellular respiration takes place in the mitochondria and it basically makes energy for the cell.
A granite monument has a volume of 25,365.cm. The density of granite of 2.7 g/cm. Use this information to calculate the mass of the monument to the nearest tenth
Answer:
=68485.5 g
follow me plz
Biologically speaking what is the only purpose of reproduction
Answer: To prevent extinction
Explanation: This is to say the main purpose of reproduction is for the continuation of species.
How is upwelling important for marine organisms?
Answer:
Because the deep water brought to the surface is often rich in nutrients, coastal upwelling supports the growth of seaweed and plankton. These, in turn, provide food for fish, marine mammals, and birds. Upwelling generates some of the world's most fertile ecosystems.
Explanation:
Answer:
Upwelling is very important for marine organisms because these nutrients fertilize surface waters, encouraging the growth of plant life. Upwelling plays an important role in the movement of marine animals.
Hope this helps! :)
Please I beg you help me. Compare solids,liquids, and gases on the molecular level
Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
Answer:
The compression of solids is difficult, liquids are nearly incompressible but gases can be easily compressed.
Explanation:
molecular arrangements of solids is regular and close, but liquids have irregular and sparse molecular arrangement. Gases too also have more random and sparse arrangements of molecules.
Are plant fertilizers “plant food?
Answer:
of course
Explanation:
Answer:
yea
Explanation:
plant fertilizers are what feed plants also you could make your own fertilizers.
When you are writing scientific names, you underline the entire scientific name, capitalize the first word, and write the second word using lowercase. true or false
Explain.
A specific location in America has closed down several fossil fuel units and set up geothermal plants. In your own words, explain how this would affect the economy of the location. (5 points)
Answer:
The economy of the location would be affected in the following ways:
1. Setting up geothermal plants would create more Jobs as expertise in various fields would be required to render their services.
2. Setting up geothermal plants would increase more revenue generation for the government in taxes.
3. Setting up geothermal plants would attract the development of the location as more people would tend to live there, there would also be improved road networks, housing, e.t.c.
4. Closing down fossil fuel units would eradicate environmental pollution in terms of oil spillage and stop the reduction that has been ravaging agricultural activities due to contamination of water bodies and land as a result of the fossil fuel.
Explanation:
Geothermal power plants are expensive but renewable sources of electricity that use steam or hot water pumped to the Earth's surface from beneath the earth's crust to spin a turbine producing electricity.
If a molecule is to large or polar and cannot easily diffuse into the cell, it is
considered to be
to the membrane.
permeable
impermeable
hydrophilic
phospholipid
Answer:
hydrophilic
Explanation:
Large polar or ionic molecules, which are hydrophilic, cannot easily cross the phospholipid bilayer. Charged atoms or molecules of any size cannot cross the cell membrane via simple diffusion as the charges are repelled by the hydrophobic tails in the interior of the phospholipid bilayer.
how many types of enzyme does pancreas secrete and name them
━━━━━━━━━━━━━━━━━━━━━━━
CORRECT QUESTION -How many types of enzyme does pancreas secrete and name them!
CORRECT SOLUTION -The pancreas consist of exocrine glands that produces enzymes making digestion playing an important role . The enzymes made by the pancreas include :
Pancreatic proteases (such as trypsin and chymotrypsin) - which help to digest proteins .Pancreatic amylase - which helps to digest sugars (carbohydrates) .Pancreatic lipase - which helps to digest fat .━━━━━━━━━━━━━━━━━━━━━━━
Pls help question is in picture
Answer:
im pretty sure its d
Explanation:
jsbsjhs
1. A standard laboratory technique used to produce a new plant is
represented in the diagram below. This technique is best identified as
BB
Cell
division 3.0.320) Cell division
Cell
One leaf cell
spocialization
removed
One
Colls grown in a
laboratory
New tomato plant
Tomato plant
O (1) gene alteration
O (2) selective breeding
(3) replication
(4) cloning
Prior to seed head emergence or at the optimum stage for best quality forage. The 4 uppermost leaf blades. Prior to bloom: Mature leaf blades taken about 1/3 of the way down from the top of the plant
10 points for each valid answer! Thanks.
There are many technologies that reduce the amount of carbon emissions into our atmosphere. Identify some examples of these technologies.
Answer:
Biomass Energy
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms. The most common biomass materials used for energy are plants, such as corn and soy, etc. The energy from these organisms can be burned to create heat or converted into electricity.
Hope this helps! :)