Answer:
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing.
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Dissolving is best described as ...
Answer:
molecules breaking into ions
what makes the pelvic girdle more rigid than the pectoral girdle
Explanation:
The pectoral girdle is weaker than the pelvic girdle because the pelvic girdle is the primary weight bearing and locomotory structure for the body through the attachment of the legs where as the pictoral girdle is the site of the arm attachment which is more for dexterity
what is cell? write it's functions??
1) what is cell ?
Ans=> 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
2) Write it's functions ?
Ans => They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function
hope it is helpful to you ❤️THREE catastrophic results of radiation on the Environment
Answer:
adverse effect on human and enviroment.
Explanation:
UV radiation generates ground-level ozone (o3) and dome particulate matter( PM frequently called aerosol ) that include nitrate, silfate and organic aerosols causing adverse effects on humans and the environment. UV promotes the formation of hydroxyl radicals that act as cleaning agents for the troposphere.
Three catastrophic results of radiation on the environment are :
Generation of ground level ozone ( O₃) which degrades the environmentFormation of organic Aerosol which poses health threat to humansFormation of hydroxyl radicals which affects the troposphere.The results of heavy UV radiation on the environment can lead to the degradation of the environment and pose a significant health threat to Humans as well in the environment. some of the results of radiation includes the formation of organic Aerosol which can pose health threat ( Lung diseases ) to humans. while hydroxyl radicals acting as cleaning agents in the troposphere damages the atmosphere as well.
Heavy atomic blasts is an example of heavy radiation which can lead to skin burns and Cancer in Humans.
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Drag each tile to the correct box. Maria is playing basketball. She sees the ball being thrown at her. She lunges forward to grab it. Arrange the events as they happen from the moment Maria sees the ball.
Answer:
Maria see the ball thrown at her
blank makes up cell membranes
Phospholipids : This makes up the bi-layer which is the membrane's basic structure and has great control over what can enter and exit the cell, due to their hydrophobic tails and hydrophilic heads.
Cholesterol : This also controls entry and exit of substances as it also exhibits hydrophilic heads and hydrophobic tails. It also stabilises the membrane and affects its fluidity (the more there is, the more fluid is the membrane.)
Glycolipids : Those can act as receptor molecules (essential for cell-signalling), antigens and in cell-adhesion
Answer:
glycerophospholipids
Explanation:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains.
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What are two examples of organ system
Answer:
Respiratory system
Endocrine system
Nervous system
Digestive system
Reproductive system
What type of tissue is shown in the image above?
Answer:
osseous tissue is shown in the image above.
Answer:
It is osseous tissue.
Explanation:
They are same tissues.
Which states would be the most likely to experience the next volcanic eruption AND earthquake in the United States? List at least 3 for each hazard and explain why they might happen there.
Answer:
AlaskaWashingtonHawaiiCaliforniaOregonExplanation:
Eruptions along the western edge of the United States have formed the Cascades volcanic mountain range. Also, they develop island chains, such as the Aleutians in Alaska, which makes Alaska a potential volcanic eruption place. A prominent example of an eruption along the Ring of Fire was the dramatic eruption of Mount Saint Helens in Washington in 1980, which makes Washington a potential volcanic eruption state. Deep beneath Hawaii, there is a fixed source of abundant rising magma, called a hot spot, making Hawaii likely to be a volcanic eruption state. In 2018, they added Salton Buttes to the 2018 assessment, which is a high threat of a volcanic eruption. In other words, California is likely to be a volcanic eruption state. Eleven of the eighteen very high threat volcanoes are in Oregon, and few other states, where explosive and often snow- and ice-covered volcanoes can project dangerous long distances to densely populated and highly advanced areas.
If you use a millimeter to measure something you are measuring what?
Distance
Mass
Time
Volume
Answer:
the anwer is distance option a or 1
How do scientists determine the relative age of a rock or fossil
Answer:
they use carbon 14 which has a half life of 5730 years
Biology PLESE HELPPPPPPPPPPPP
Answer:
disect
Explanation:
How do cells affect the size of an organism?
As animals grow in size, they produce more cells.
As cells expand or shrink, the size of an organism can change.
More cells can produce more chemical energy, allowing animals to get larger.
Larger cells produce larger-sized organisms.
Four types of macromolecules
Answer:
carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
Carbohydrates are the primary source of energy. Some are structural, such as cellulose.
Proteins have a wide variety of functions. They make up structures, and regulate chemical reactions as enzymes.
Nucleic acids, DNA and RNA, are involved in heredity and the production of proteins.
Lipids can be structural, such as the phospholipids in the plasma membrane, and they are a source of energy.
122.90 to Sciencetific notation
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Why would bacteria, plant and animal cells need to be different?
Answer:
Because each the cells would have different functions on different organisms.
Explanation:
Bacteria cells are usually prokaryotic which means that it is only composed of one cell. The single cell already has everything it needs so therefore, it isn't as complex as plant and animal cells.
Plants are autotrophs and produce their own food through photosynthesis. Plant cells would have a large vacuole, cell wall, chloroplasts, unlike animal cells.
Animal cells have all the cell organs that plant cells except a large vacuole, cell wall, and chloroplasts. Animal cells also have lysosomes in which plant cells don't.
Dr. John Smith is a research scientist. He uses the information from his research to develop a drug for bipolar disorder. Dr. Smith is a(n) ________
applied research scientist
basic research scientist
geneticist
Answer:
The answer should be A. applied research scientist.
Explanation:
Who is an activist ???
Answer:
A person who is revolutionary for society changes
Of the thorns or spines and the greeny pigmented hard part of the cactus are the leaves and why?
The spines of a cactus are exactly not the leaves, but they are the solid hard part that reduces the rate of transpiration, so as to level the water constant in the cactus' body. They are important as it can reduce the animals from eating the cactus.
However, camels have thick jaws and can eat cactus easily .
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It is vital that organisms maintain their body temperatures. Please use the chart below to pick the best description of what might be occurring based upon the displayed data.
1. The organism is not successfully maintaining their body temperature
2. The organism is trying to get their body temperature under control and will even out soon
3. The organism is maintaining homeostasis so that every time their body temperature starts to drop their brain will send signals to increase it and vice-versa
Answer:
number 3 would be the right answer
Explanation:
The best description would be that the organism is maintaining homeostasis so that every time its body temperature starts to drop, its brain will send signals to increase it and vice versa. So the correct option is A.
What is homeostasis?A self-regulating process, by maintains the stability of the biological organisms while they are trying to adjust to the conditions that are important for their survival is called homeostasis. The individual is able to live only if homeostasis is successful. If homeostasis is unsuccessful the individual will not survive.
The stability that is achieved during the process of homeostasis is actually not permanent. It is a dynamic state of equilibrium. In this condition, continuous changes are happening which ultimately lead to uniform conditions.
A biological system in dynamic state equilibrium will always tend to attain a steady state equilibrium. This is a balanced condition to resist any kind of outside forces of change.
Therefore the correct option is A.
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♡ Observations... ! I NOTICE... ? I wonder... Think = Reminds me of...
Answer:
???? whats this and where is the image
Which claim is most likely to be based on pseudoscience?
O A. The color of light from a star can tell you how old it is.
O B. The volume of a gas will increase if you heat the gas.
C. The arrangement of the sstars can bring you good luck.
O D. The planets in our solar system move around the Sun.
Answer:
i think it is c
Explanation:
Write any four adaptations observed in polar bear and explain how these
adaptations are useful in its survival.
Answer:
The polar bear
Their adaptations include: a white appearance - as camouflage from prey on the snow and ice. thick layers of fat and fur - for insulation against the cold. a small surface area to volume ratio - to minimise heat loss.
Which of the following is NOT a characteristic of all living things?
Answer:
Ability to move is the answer
Answer:
ability to move
Explanation:
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The louse Cymothoa exigua lives inside the mouth of certain fish. It attaches to the fish’s tongue, strangling it until it falls out. Once the tongue falls out, the louse functionally replaces it. Generally, this is thought of as a parasitic relationship.
What criteria would need to be met for this relationship to be considered parasitic? Is it possible that this relationship could be an example of mutualism or commensalism? Use what you have learned to classify this relationship and explain your reasoning.
Answer:
It enters fish through the gills and the female attaches to the tongue, with the male attaching on the gill arches beneath and behind the female. Females are 8–29 millimetres (0.3–1.1 in) long and 4–14 mm (0.16–0.55 in) wide.
Explanation:
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A connection must meet specific requirements in order to be classified as a parasite: the parasite must obtain a benefit at the expense of the host, possibly endangering the fitness or survival of the host. In the case of the fish host and the louse Cyamothoa exigua, the louse benefits by using the fish's tongue as a site of attachment and protection.
Although damage to the fish's mouth would suggest a parasitic relationship, commensalism is another possibility. Commensalism occurs when one organism benefits while the other suffers little or no real harm. In this instance the fish loses its tongue, but the louse does not aggressively threaten the existence of the fish as a whole.
However, the relationship is more accurately defined as parasitic. A fish's ability to eat and possibly survive is directly affected by the loss of its tongue. This loss of fitness for the host points to a parasitic relationship as the louse benefits the host while harming it. Even though the louse effectively replaces the fish's tongue, the initial damage and potential consequences for fish survival outweigh the requirements of a parasitic relationship.
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Explain how populations of bacteria evolve to become antibiotic-resistant. (Hint: Some bacteria are naturally more resistant to antibiotics and some are easily killed by antibiotics.)
Answer:
adaptive evolution by natural selection of best suited variations and mutations by losing genetic material
Explanation:
What do barycenter, nutation , and precession have in common ?
Answer:
Precession: The slow movement of the axis of a spinning body around another axis due to a torque, such as gravitational influence, acting to change the direction of the first axis.
Barycenter: The center of gravity between two objects
Nutation: As an object precesses, it will not precess in a circular path, but will wobble/ oscillate slightly. This wobble is nutation, the periodic movement of an axis due to gravitational interactions with other bodies.
These are all caused by gravitational interactions between two or more bodies.
27 Scientists are ____about the subjects they study.
Answer:
27 Scientists are learning about the subjects they study.
27 Scientists are teaching about the subjects they study.
Explanation:
What else would scientists do?
How are globes used?
Answer:
Globes are used to look at places, without a device. You can think of a globe as a map of the world wrapped up into a ball. If you wanted to look at the United States, you could twist the globe, and see it, and surrounding places like Canada or South America.
In a different case, they are used for school geography. The students are asked to find a place and point to it on the globe.
3. What tool do we use to write conclusions? Briefly
summarize it.
Answer: You use a restatement of the speech's thesis; a review of the main points discussed within the speech; and a concluding device that helps create a lasting image in audiences' minds.
Explanation:
