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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why is sunlight important for life on earth
Answer:
drives weather, ocean currents, seasons, and climate
Explanation:
The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis. Without the sun's heat and light, life on Earth would not exist.
A muscle contracts in response to an electrical signal that signals the ______________, the unit of contraction, to shorten.
Answer:
Sarcomere
Explanation:
A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction.
if retinal detachment occurs in the macula or fovea, one can predict that there would be a significant loss of ______.
Answer:
color vision
Explanation:
I NEED HELP PLS THISS IS HARD
Answer:
I think it's 2 number not sure but definitely not the first one for sure
why most enzymes perform poorly at low temperatures
Answer:
their molecule movement decrease s
Explanation:
molecules move more slowly, reducing the frequency of enzyme-substrate collisions and therefore decreasing enzyme activity
What is the wresting move for a war front
Answer:
I think it's a Power slam-
Explanation:
Sorry if it's wrong
The energy in ATP is -
a
Stored in the vacuoles
b
Not widely used by cells
c
Stored between its phosphate groups
d
Not very useful
Answer:
adenosine triphosphate
Explanation:
adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.
B
what type of a receptor would provide information on lung expansion to respiratory centers in the brainstem?
astronomy is the study of the ___ beyond earth.
astronomers are scientists who study:
. _____
.___ systems.
. ______
. galaxies.
Fill in all the blanks plssss.s
What are the 3 parts of the digestive system? What does each one do?
Answer:
The Esophagus, Gastric Chamber and Intestines
Explanation:
esophagus pushes chewed food to stomach by peristalsis. The gastric chamber(stomach) works on digesting the food. The digestion completes in the small intestine and goes through the large intestine which absorbs water and minerals. Then it passes through the Anus and get pooped out.
which of the following mutations is most likely to result in a heritable change?
A. ULTRAVIOLET LIGHT FROM THE SUN CAUSES A MUTATION AND A SKIN CELL.
B. RADIATION FROM X-RAYS CAUSES A MUTATION IN BRAIN CELL.
C. A CHEMICAL AND CIGARETTE SMOKE CAUSES A MUTATION IN A LUNG CELL.
D. A SUBSTITUTION IN DNA CODING CAUSES A MUTATION IN A SPERM CELL.
I THINK ITS D. BUT CAN SOMEONE HELP ME !!!!!
Answer:
yeah
Explanation:
it's obviously D . it's a heritable change because the mutation in the sperm cell is gonna cause a mutation in the zygote
A mutation in the sperm cell will most likely result in heritable change ton the attributes of organisms.
Mutations that happen in vegetative cells such as skin, lung, and brain cells cannot be passed on to future generations.
Heritable mutations are those changes to the DNA sequence of sex cells. Changes elicited by such mutations are passed to future generations because they are germline based.
Sperm cells are sex cells. Thus, changes that occur as a result of mutation to sperm cells are most likely heritable.
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How do the uses of renewable resources compare to the uses of nonrenewable resources?
Answer:
Renewable and nonrenewable resources are energy sources that human society uses to function on a daily basis. The difference between these two types of resources is that renewable resources can naturally replenish themselves while nonrenewable resources cannot.
Please explain, why do we age?
Answer:
According to this theory, aging occurs through small and random damaging events in a cell that add up over time. These damaging events may come from our own metabolism, as the basic mechanism of metabolism sometimes causes damage to molecules within our cells.
Answer:
according to this theory, aging is caused by changes in hormones.
Explanation:
hormones are which are produced by the endocrine system.
What do lung cancer And emphysema have in common
Answer:
While emphysema and lung cancer are two different conditions, they do share some associations and share the main risk factor for both which is cigarette smoking. Both can lead to immune system malfunction, inflammation, and cell damage which play a role in the development of the two diseases. so they both be come from the cause of smoking
Explanation:
Answer:
Both are caused by smoking.
Explanation:
can someone explains (summarize) what photoperiodism is? And if it’s the same as photoperiodism
Answer: photoperiodism means the response of an organism to seasonal changes in day length. Photoperiodism isn't the same as Photoperiod because Photoperiodism merely refers to the potential of the plant to incite flowering relative to the changes in the photoperiod. Thus, photoperiod is a light duration or the length of day and night, while photoperiodism is the effect of light duration on the plant’s growth.
Explanation:
Explain the carbon circle in 5 sentences
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___$$$__$$______________________$$
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Answer:Carbon moves from the atmosphere to plants.
Carbon moves from plants to animals.
Carbon moves from plants and animals to soils.
Carbon moves from living things to the atmosphere.
Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Carbon moves from the atmosphere to the oceans.
what is dropped off at the lungs by the blood vessels
Answer:
carbon dioxide
Explanation:
help taking final will give the breian thing
what is your question? i cant download it
A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female.the dependent variable is.
Answer:
The temperature
Explanation:
In an experiment, the factor we meadure is called the independent variable. Here, temperature of an alligator's egg determines whether the alligator is male or female, so temperature is the independent variable.
Oceanic crust is best described as _______.
a.
thin and young
b.
continuously replenished
c.
a majority of Earth’s crust
d.
all of the above
Answer:
d. all of the above
Explanation:
correct ed2022
The controls the materials that enter and
leave the cell.
early improvements to microscopes allowed some scientists to view cells and eventually develop what?
A lab investigation involves using food coloring to track diffusion. Which action should students take to avoid damaging their clothing? Wear old, stained clothing to the lab. Wear a lab apron or lab coat over clothing. Have plenty of paper towels for cleaning up spills. Tuck sleeves into long safety gloves.
While working in labs with chemicals or specimens one should follow good laboratory practices. Professional conduct and manner should be maintained during working in labs.
The action that should be taken by a student is:
Option B. Wear a lab apron or lab coat over the clothing.
The good lab practices can be explained as:
To avoid staining clothes individuals should wear lab coats over their clothes.Lab coats avoid staining and splashing your skin and clothes from chemicals and dyes.Lab coats are designed to protect against corrosive chemicals from soaking into the skin.Therefore, the student should wear lab coats and aprons.
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Answer:
B
Explanation:
Edge 2022 trust the process
true or false? a flood that separates a population of frogs onto opposite sides of a lake is an example of a vicariance event that may result in allopatric speciation.
Answer:
true
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 .
What is meant by industrialization ?Write in brief
where is earth's magnetic north pole?
Answer:
The north magnetic pole is a point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downward (in other words, if a magnetic compass needle is allowed to rotate in three dimensions, it will point straight down)
Explanation:
There is only one location where this occurs, near (but distinct from) the geographic north pole. The geomagnetic north pole, a related point, is the pole of an ideal dipole model of the Earth's magnetic field that most closely fits the Earth's actual magnetic field.
The Earth's magnetic pole is situated at west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W.
What is the Earth's magnetic pole?The generation of the Earth's magnetic field occurs deep within the Earth's interior, in a layer which is known as the outer core to be more precise. Here, the convective energy from the slow-moving molten iron is converted to the electrical and magnetic energies.
The north magnetic pole of the Earth moves over time according to the magnetic changes and flux lobe elongation in the Earth's outer core. In the year 2001, it was determined by the Geological Survey of Canada to lie west of the Ellesmere Island in northern Canada at the geographical location of 81°18′N 110°48′W. It was situated at 83°06′N 117°48′W in 2005.
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what happens in the big bang theory
Answer:
There are two answers to this question.
One:
Around 13.7 billion years ago, everything in the entire universe was condensed in an infinitesimally small singularity, a point of infinite denseness and heat. Suddenly, an explosive expansion began, ballooning our universe outwards faster than the speed of light.
Two:
The Big Bang Theory is a comedy about brilliant physicists, Leonard and Sheldon, who are the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women
Explanation:
I know both thingymabobbers
Which group of substances can be found on the same side of the photosynthesis equation?
a.
Sugar and carbon dioxide
b.
Sugar and water
c.
Carbon dioxide and water
d.
water and oxygen
C
carbon dixoide and water
see image
ready-to-eat tcs food must be date marked if it will be stored for longer than:
Given what we know, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours.
What is TCS food?TCS food refers to food that must be stored in temperature-controlled environments to ensure safety.These foods, if not stored properly and at the correct temperatures can cause sickness to the consumers.Why does it need to be date-marked?The reason the foods need to be date-marked is to relay information to the potential consumer as to by when the food should be consumed. This is done to ensure that if stored correctly, the food does not have time to spoil and cause health risks for consumers.Therefore, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours in order to protect the health of the consumers.
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