DNA evidence and the fossil record indicate are the ancestors of the living cetaceans were land-dwelling mammals. DNA evidence allows to trace the evolutionary origin of taxonomic groups.
DNA evidence refers to the linear order of nucleotides, which can be used to trace the evolutionary origin of a particular taxonomic group.
When the linear order of DNA nucleotides is conserved, it is known as sequence homology.
Fossils are preserved remains of organisms that once lived on the Earth, which can also be used as evidence to trace the evolutionary origin of a given group.
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What is the cell ? How many champers did have the heart?
Answer:
In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface.
The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated.
Explanation:
According to the trichromatic theory of color vision, the eye has cones sensitive to colors associated with ___________. A. Red, green, and yellow B. Green, purple, and red C. Red, green, and blue D. Black, brown, and white Please select the best answer from the choices provided A B C D.
The eye has cones sensitive to colors associated with Red, green, and blue
according to the trichromatic theory of color vision.
The trichromatic theory of color vision states that the eyes can view only
three colors which are red, green and blue. This is made through the cones
which are light sensitive pigments in the eyes. The combination of their
wavelengths can be used to create other colors in the visible light spectrum.
The stated facts is the reason why Red, green, and blue is the most
appropriate choice in the list of options.
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Answer:
C.
red, green, and blue
Explanation:
edge ; verified answer .
PLEASE HELP!!!!!!!!
Which phrase best describes the context of a speech?
A. The crowd's overall feelings
B. The visual aids the speakly uses
C. The quality of the fact-checking
D. The evidence the speech presents
Answer:
I believe it would be D The evidence the speech presents
Explanation:
The context of a speech refers to the purpose, which makes me think it would best be described as the evidence since evidence is used to prove your purpose.
Which equation represents the photosynthesis process?
a
CO2 + Glucose ----> H2O + Sunlight + O2
b
CO2 + H2O + Sunlight ----> Glucose + O2
c
CO2 + H2O ----> Glucose + O2
d
Glucose ----> CO2 + Alcohol + ATP
Answer:
C
Explanation:
Carbon Dioxide + Water -> Oxygen + Glucose
What effect does increase salinity have on the density of water?
1. No affect unless temperature also changes
2. Decreases density
3. Increases density
Answer:
3
Explanation:
For example,The density of seawater depends on the content of salt. It is known that the density of salt is 2.165g/cm3, so the more salt, the greater the density of mixed liquid.
Answer:If you know that dissolution of salt only marginally affects the volume of the solution, how would you expect the density to evolve? It should reasonably increase.
Explanation:
at a given temperature, Should salts be dissolved in the water, and the volume remains reasonably constant, the density
. A solute binds water molecules around itself in a coordination sphere, and should a salt be dissolved, both anion and cation must be solvated; hence an increase in solution density with respect to water.
what are the Cell Division in the human liver cell
Answer:
mitotic division
Explanation:
How does your body respond to a decrease in blood glucose
I do believe that i need help.
If none of the flower colors being bred don't show dominance, it would be pink only because if one showed dominance, than it means you would see that flower and that flower color only. Mixing red with white create pink, and therefore pink would be the only type of flower to have.
in an experiment describe photosynthesis
In a phrase, tell what each scientist did to help develop the cell theory
Answer:
English scientist Robert Hooke published Micrographia in 1665. In it, he illustrated the smallest complete parts of an organism, which he called cells. theory that all organisms are made of cells, which are the basic structural units of life
can someone please give me the answer i don't know which one it is?
Answer:
Sea levels near the arctic rise
Explanation:
The Mauna Loa Observatory in Hawaii has been collecting data about the
atmosphere and climate since the 1950s. The graph below shows some of
their findings. What conclusions can you draw by studying the above the graph?
options:
climate change is a natural process
all climate change is caused by humans
the levels of carbon dioxide in the atmosphere have been increasing since the 1960s
the levels of carbon dioxide in the atmosphere have been decreasing since the 1960s
Answer:
These search terms appear in the result: mauna, loa, observatory, hawaii, has, been, collecting, data, atmosphere, climate, since, 1950s, graph, shows, some, their, findings, conclusions, can, you, and draw
what type of a receptor would provide information on lung expansion to respiratory centers in the brainstem?
who won the nobel prize for discovering the structure of dna
Answer:
James Watson, Francis Crick , Maurice Wilkins and Rosalind Franklin
which of the following could explain why the percentage of brown-shelled insects decreased from year 3 to year 4
Answer:
I feel like you need a picture or graph for someone to answer this question. Being helpful, I'll guess some possible answers.
Nutrient or water shortages
Environment issues
Disease
Explanation:
What are some benefits of farming for the society/environment?
Answer:
Pasture and cropland occupy around 50 percent of the Earth's habitable land and provide habitat and food for a multitude of species. When agricultural operations are sustainably managed, they can preserve and restore critical habitats, help protect watersheds, and improve soil health and water quality. in addition to preserving the earth's natural resources, sustainable agriculture benefits the environment through helping maintain soil quality, reducing erosion, and preserving water. Plants and trees in agricultural systems help to retain and add water to underground aquifers. ... Together, they act as an important buffer in the landscape, preventing flooding, reducing water pollution from agricultural runoff and preventing erosion, while providing us with nutritious food at the same time. Farming creates opportunities to lift people out of poverty in developing nations. Over 60 percent of the world's working poor works in agriculture. Farming creates more jobs, beginning with farmers, and continuing with farm equipment makers, food processing plants, transportation, infrastructure and manufacturing.
Explanation:
The benefits are:
early agriculture
Morden agriculture's opportunity
Development in farming sustainability
Farmers improve their communities
Do you think the vacuum hose is an effective way to remove sea urchins? Why? Explain at least one way this technology can be improved.
Answer:
No, or at least not yet. there small and dont do much improvment. If they were much bigger and sucked better, including some touch-ups here and there, they would have a bigger effect on removing sea urchins.
Explanation:
No
vaccum hoses are quite small in size.They don't suck sea urchins as per requirement.If they would be bigger and have more sucking power then it can be yes.Scientist put a sample of water into a sealed tank. water can be a solid, liquid, or a gas. At first the water was a liquid . Then, the scientists transferred energy out of the substance, and was we changed phase. What after the phase change, the water molecules moved…
ANSWERS
A. Faster and started moving away from each other
B. Faster and started moving around each other
C. Slower and started moving in place
D. Slower and started moving around each other
Answer: C. Slower and started moving in place
Explanation:
am very good at science
According to the text, adolescents are deficient in their intake of necessary vitamins and minerals because _____
Answer:
healthy foods cost more.
unhealthy foods are more desirable.
they eat from vending machines in schools.
All of these answers are correct.
Explanation:
Looking at the aquatic food web below, where is energy starting in the food web
A. Seagull, penguin, and elephant seal
B. Phytoplankton and seaweed
C. Blue whale and killer whale
D. Crabs, krill, Fish
Answer:
Pretty sure it's B
Explanation:
What is the role of ATP in transport of materials
Answer:
Functions of ATP in cells
Explanation:
ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell. The hydrolysis of ATP provides the required energy for active transport mechanisms to carry such molecules across a concentration gradient.
Answer:
The role of ATP in the transport of materials :- To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.Explanation:
Hope this helps you !!what are the two functional parts of a tRNA
Answer: Transfer RNAs are coded by a number of genes, and are usually short molecules, between 70-90 nucleotides (5 nm) in length. The two most important parts of a tRNA are its anticodon and the terminal 3’ hydroxyl group, which can form an ester linkage with an amino acid.
Explanation:
Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.
Answer:
C
Explanation:
Semi means partly
permeable means allowing liquids or gases to pass through it
Semipermeable means allowing some, but not all, liquids or gases to pass through it.
Answer:
c) It is a barrier with tiny openings that let some, but not all, materials pass through.
Explanation:
The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.
What is eternatus????
Eternatus (Japanese: ムゲンダイ Mugendina) is a dual-type Poison/Dragon Legendary Pokémon introduced in Generation VIII. While it is not known to evolve into or from any other Pokémon, the player battles a powered-up form of Eternatus known as Eternamax Eternatus in the climax of Pokémon Sword and Shield.
Answer:
Eternatus is a Poison/Dragon-type Legendary Pokémon
Explanation:
Eternatus (ムゲンダイナ Mugendaina) is a Poison/Dragon-type Legendary Pokémon introduced in Generation VIII. It has an Eternamax form known as Eternamax Eternatus.
What type of feedback loop does the decreased in localized precipitation demonstrate? Explain your reasoning.
Answer:
Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=
r
1
mv
2
=
r
2
mu
2
................ii
form i and ii we can write
v^2= \frac{1}{2} u^2v
2
=
2
1
u
2
⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
i need help with this question that is on my homework, is it ok if someone helps me please. thanks to anyone who helps! :)
CO
Why are liquids usually difficult to compress?
a. Their atoms are held in position
b. Their atoms are already packed closely
together
c. Liquids have a definite shape
d. Liquids are not difficult to compress
Please select the best answer from the choices provided
Ο Α
B
Ο ΟΟΟ
С
On a cellular level, why do we need to breathe?
a
Our cells need oxygen
b
Our cells need glucose
c
Our lungs are empty
d
Our cells need carbon dioxide
Answer:
A. Our Cells need Oxygen
How do archaebacteria survive extreme environments?
Please help me! NO LINKS.
Answer:
Archaebacteria are found in very harsh conditions such as in the volcanic vents or at the bottom of the sea. They are often called "extremophiles". They can easily survive in such extreme environment as sea vents releasing sulfide-rich gases, hot springs, or boiling mud around volcanoes.
Explanation:
Answer:
Archaebacteria are found in very harsh conditions such as in the volcanic vents or at the bottom of the sea. They are often called "extremophiles". They can easily survive in such extreme environment as sea vents releasing sulfide-rich gases, hot springs, or boiling mud around volcanoes.
Explanation:
ayye girl hru??
Given the following strand of DNA, what is the complementary (second) strand of DNA?
CGT-GAT-CAG
Answer:
If i remeber correctly it would be CAG or CGT
Explanation:
