Answer:
Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O2) and CO2. O2 generally diffuses into cells because it is more concentrated outside of them, and CO2 typically diffuses out of cells because it is more concentrated inside of them.
Which is an example of a scientist using a physical model to describe the solar system?
A. The scientist uses a computer to calculate the speed of each planet.
B. The scientist compares the solar system to the shape of an atom.
C. The scientist writes an equation that predicts how long the year will be.
D. The scientist uses tennis balls to show the position of the planets and Sun.
(its D btw)
Answer:
D. The scientist uses tennis balls to show the position of the planets and Sun.
Explanation:
In a layman's terms, the solar system is a system consisting of the sun and the planets that orbits around it. These planets are as follows; Mercury, Mars, Earth, Saturn, Venus, Jupiter, Neptune, Uranus etc.
According to this question, using a physical model to represent or describe the solar system means the use of physical objects that can easily be seen or identified. Based on this explanation, the use of tennis balls to show the position of the planets and Sun suits the physical model description of our solar system.
Bone remodeling is a function of what cell?
Answer:
a)Osteoclasts
b)Osteoblasts
Explanation:
a) destroys the bone matrix
b) have osteogenic functions
Bone remodeling is a function of cell - Osteoclast, and osteoblast
Bone remodeling is a lifelong process where mature bone tissue is removed from the skeleton called bone resorption and new bone tissue is formed called ossification or new bone formation.
the removal of mineralized bone by osteoclastsafter removal of mineralization, the formation of the bone matrix through the osteoblastsprocess of bone remodeling also called bone metabolism is regulated by keeping maintenance between bone formation and bone resorptionThus, the correct answer is - Osteoclast and osteoblast.
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c3ll therory state that all living things are composed of cells, and are the basic units of life. Why do scientists refer to it as cell theory instead of cell hypothesis?
A Since we haven't checked every organism for ourselves, we cannot call it hypothesis.
B It explains what happens in cells, so it cannot be a hypothesis.
C All of the evidence collected supports the idea of why we believe this
D It is an idea that is held by more than just one scientist
PLZ help i will give you Brainliest
Explanation:
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According to the geological record, during which geological time period were the sands and clays underlying Long Island and Staten Island deposited?
Answer:
The correct answer is - Cretaceous period.
Explanation:
The Magothy Formation occurred during the cretaceous period. The Magothy formation is the formation of the consolidated sand and layers of clays deposited beneath Quaternary glacial cover throughout most of Long Island, and the south shore of Staten Island.
This formation is composed of gravel of clay and coarse sands. The thickness ranges between 10 and 200 feet. It is formed above the Raritan Formation which is upper clay and below slit deposits formation.
What would cause a person to have two copies of the bent thumb allele (tt)?
1. A person whose mother or father had two copies of the bent thumb allele will always have two copies of the allele.
2.A person with two copies of "t" inherited one from their mother and one from their father.
3. A person born with one "t" mutation is more likely to develop a second "t" mutation during their lifetime.
4. A person with two copies must have duplicated the "t" allele through mitosis early in development. (They inherited one, then doubled it)
Answer:
A person with two copies of "t" inherited one from their mother and one from their father
Explanation:
This is because both the father and the mother are carriers of "t" alleles which is a bent thumb. When the parent mate, the father donate one t and the mother too donate one t allele, therefore the person will inherit bent thumb from them.
Which material heats fastest, the rock, the sand or the water?
Explain your answer.
Answer:
Sand
Explanation:
Sand heated up faster than water because sand is darker than water; dark-colored materials will absorb more light. Sand heated up faster than water because sand is a solid and water is a liquid. Water is a slow conductor of heat, thus it needs to gain more energy than the sand or dry land in order for its temperature to increase. On the other hand, soil loses its heat much faster. Water has to lose more energy than the sand (dry land) in order for the temperature to decrease.
Which factor correlated with human populations losing skin pigmentation? (1 point)
O moving away from the poles
moving away from mountainous environments
moving away from shaded environments
moving away from the equator
Explanation:
moving away from shaded environment
The main factor correlated with human populations losing skin pigmentation is moving away from the equator.
What is melanin?Melanin is a specific protein associated with skin pigmentation in humans and mammals in general.
In humans, melanin levels are related to the amount of solar radiation, which is a consequence of latitude.In regions of low latitude, melanin levels are higher than in high latitude regions.In conclusion, the main factor correlated with human populations losing skin pigmentation is moving away from the equator.
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Floods, droughts, fires, and earthquakes are examples of
Answer:
Floods, hurricanes, tsunamis, earthquakes, volcanic eruptions, forest fires, famine, and droughts are examples of natural disasters, which have adverse effects on countries. In my opinion, I like to see the term “natural disaster” as a word human beings use to blame nature for their lack of environmental sustenance.
I answered the same question before So I went to the answer and copied it.
Lab: Interdependence of Organisms
Assignment: Lab Report
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Your work will not be submitted to your teacher until you click Submit.
Answer:
Explanation:
what do you mean eh
Answer:
the dude up top is rigtht
Explanation:
Trace minerals are needed in much smaller amounts than major minerals, but they are just as essential for good health.
a. True
b. False
Answer:
The correct answer is - true.
Explanation:
Like macromolecules and vitamins, minerals are also essential for a healthy body. The essential minerals can be divided on the basis of their requirement into major minerals and trace minerals.
The trace elements and the major elements both are equally important. It does not matter if a high amount of major elements are required and a small amount of trace elements required. The amount is not an indication of the importance of the element.
explain how all the layers of earth are necessary to create life on the surface
Answer:
The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth's resources, and much more.
Explanation:
Hope it helped!
Describe three major ways humans use land
Answer:
they built farms buildings and broke the tree for roads
Explanation:
Which of the following is not an advantage of renewable energy?
a. Reduce pollution
b. reduce greenhouse gas emissions
c. Reduce biodiversity losses
d. Reduce profits for oil and gas companies
Answer:
I'd say that the answer is 'd. Reduced profits for oil and gas companies'.
6. How might protein synthesis execute differently if a mutation occurs?
Answer:
The wrong protein can be created or the right one with abnormal function.
Explanation:
The mutated DNA is taken through the whole protein synthesis process and translated by the rRNA and tRNA to create a protein from that new sequence.
What does Marco scale mean
Answer:
A large macroscopic scale.
Explanation:
Which organism is not extinct
Answer:
humans and deer
What atoms are in photosynthesis input molecules
Answer:
Photosynthesis involves three elements: carbon, hydrogen, and oxygen
Sometimes an organ can be replaced by moving it from one part of the body to another. This can be done, for example, to replace damaged skin or joints. In these cases: rejection of the transplanted organ would not be expected. antibodies would be generated against the transplanted organ. antigens would be generated against the transplanted organ. immunosuppressant drugs would be required to prevent transplant rejection. rejection of the transplanted organ would still be expected.
Answer:
rejection of the transplanted organ would not be expected.
Explanation:
Organs can be defined as specialized body tissues united to perform specific functions in living organisms. Some examples of organs found in humans are brain, bladder, kidney, heart, intestine, eyes, lungs, liver, etc.
In the field of Medicine and Surgery, an organ is sometimes replaced for specific reasons, by moving it from one part of the body to another; this process is generally referred to as a transplant. Thus, it's mainly done to replace damaged skin or joints in the body of a living organism such as humans.
Hence, in these cases, rejection of the transplanted organ would not be expected because an examination and matching of the organ is carried out by the medical professionals before transplant.
what is cell y and cell x
Answer:
Humans and most mammals have two sex chromosomes, the X and Y. ... Egg cells all contain an X chromosome, while sperm cells contain an X or a Y chromosome. This arrangement means that during fertilization, it is the male that determines the sex of the offspring.
Explanation:
hope that helped
A farmer often sprays a certain kind of insecticide, a chemical that kills insects, on his plants to prevent locust bugs from eating all of his corn crops. One day there was a random change in the sequence of DNA in a locust egg cell. When the egg cell hatched, the locust was resistant to the insecticide (it would not be killed by it). Since that locust could survive and reproduce, natural selection occurred until the entire population evolved to become resistant.
A) Identify the variation that existed in the insect population. _________________________________
B) Identify the process that created this variation. _________________________________
C) Explain why the variations in the insect population would be passed on to the next generation.
D) Is this locust population likely to survive, why or why not?
Answer:
as they were living in that environment they adopted it and were able to in it ; the population was able to survive because they adopted it
How does competition affects behavior of species
Answer:
The way organisms compete with each other determines species distributions, population dynamics, community structure, food webs, and social dominance hierarchies. ... These stressors affect the way that organisms compete with each other and their ability to survive and co-exist.
Explanation:
Place the labels accordingly to Biotic or Abiotic factors of this ecosystem.
(answers)
Answer:
abiotic: sea, air, rock, sun ,sea water.
biotic : shrimp , bacteria ,whelk ,
sea anemone, plankton, fish.
Explanation :
Biotic factors relate to all the living things in the ecosystem.
abiotic refers to all the non-living factors present in an ecosystem. Sunlight, water, land, all constitute the abiotic factors.
Which of these is a distinguishing characteristic of a temperate grassland?
A. Giraffes, zebras, and wildebeests
B. Warm weather all year long
C. Low annual precipitation
D. Deep, fertile soil
Answer:
A. Giraffes, zebras, and wildebeests
Explanation:
Answer:
Its actually C
Explanation:
how much oil was released in the cuyahoga river
Answer:
about 90
Explanation:
Moons are natural satellites. They do not orbit the Sun directly. Instead, they move in an orbit around a celestial body, such as a planet. Which celestial bodies have one or more moons?
meteors
comets
dwarf planets
meteoroids
planets
mulitple choice
Answer:
dwarf planets
Explanation:
answer
A moon is to be a celestial body that makes an orbit around a planet, including the eight major planets, dwarf planets, and minor planets. ... Other than the four Galilean moons, Saturn's Titan and Neptune's Triton are two other moons which are comparable in size to the Earth's Moon.
Snowshoe hares live in areas with cool summers and extreme winters. In the summer, their fur is brown. In the winter, they grow white fur. Which best describes what this is an example of?
A) adaptation
B) evolution
C) selection
D) variation
Answer:
A) Adaptation
If a woman who is heterozygous for type B Blood, has a baby with a man who is heterozygous for type B blood, what are they chances their baby could have type O blood?
Answer:
50%
Their are 50% chances for their baby to have type O blood.
the lungs and respiratory system work closely with the __ system to make sure oxygen reaches all the cells of our body
Answer:
circulatory system
Explanation:
can someone show Me how you do Math on The periodic Table no links or I will report you
Answer: I won’t put a table link don’t worry
Explanation: “Table Link” Nice nice nice
Which factors were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection?
(1 point)
1. a change in the diet of human populations as they settled in colder climates
2. the clothing worn by humans in the early 8th century
3.the interaction of human populations with predators in colder climates
4.the impact of UV radiation on folate and Vitamin D levels in human populations
Answer: The answer is 4
Explanation:
Vitamin D controls your skin pigment. It's kind of like when someone has an iron deficiency they get bruises and they turn a whiter shade.
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The factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection are the impact of UV radiation on folate and Vitamin D levels in human populations.
Ultraviolet B radiation produces diet D in human skin. Ultraviolet radiation can, however, smash folate. Folate is critical for the speedy increase of cells, particularly at some point in which its deficiency can motivate neural tube defects. The human frame additionally has a mechanism to save you overproduction of vitamins.
What is UV radiation?Ultraviolet is a shape of electromagnetic radiation with a wavelength from 10 nm to four hundred nm, shorter than that of seen light, but longer than X-rays. UV radiation is found in sunlight and constitutes approximately 10% of the whole electromagnetic radiation output from the Sun.
Thus it is learned that the above answers are well-explained factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection bout.
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