Do bacteria genetic material change?
Yes, bacteria can undergo genetic changes through mutation, recombination, and horizontal gene transfer. These changes can lead to the evolution of new traits, antibiotic resistance, and adaptation to different environments.
Why was the newton meter for measuring forces named after isaac newton?
The newton meter was named after Isaac Newton to honor his contributions to classical mechanics and his formulation of the laws of motion that govern the behavior of forces acting on objects. Newton's work laid the foundation for our modern understanding of forces and how they interact in the physical world.
Many of the plants in a paleozoic forest would have belonged to the division lycophyta?
Yes, during the Paleozoic era, lycophytes, which are primitive vascular plants, were dominant in forests. These plants had small leaves and reproduced by spores. Lycophytes contributed significantly to the vegetation that existed during that time period.
What makes a isotope different from a regular atom?
Isotopes are atoms (as regular as any!) which differ in number of neutrons in the nucleus. For example, hydrogen isotopes are:
What element is used in making razor blades?
The main element used inmost of the cutlery is iron, base element of the steel alloy.
Must have element is Carbon, otherwise it's not a steel.
Stainless steel also contains Chromium, 14% or more.
Other alloying elements include V, W, N, Co, Ni, Mo, Mn, etc.
To see the effects of the alloying elements and detailed composition or most of the cutlery steels see the attached links.
High end steels use more of the Vanadium, Molybdenum, Cobalt, Nitrogen, etc.
Although, that doesn't mean simple low alloy steels will underperform for many uses.
A plug dome volcano is a type of volcano that forms when sticky lava accumulates around a central vent, creating a steep-sided dome-shaped structure. These volcanoes are characterized by their viscous lava flows and explosive eruptions due to the pressure buildup beneath the dome. Plug dome volcanoes are typically found in subduction zones where water-rich magma interacts with continental crust.
How did the continents get to where they are today?
The Earth is made up of Tectonic Plates, these are large sections of land (Continental Plates) or ocean (Oceanic Plates). The Mantle (magma beneath the Earth's crust) is heated from the core of the Earth, where it is hottest, causing a convection current, this is when a fluid (magma in this case) is heated unevenly and the hot fluid rises, causing the cooler fluid to sink in its place (forming a circular current of heating, rising, cooling and sinking.)
This current effectively drags the Tectonic Plates along in differenbt directions to each other, causing them to move apart or together, sometimes even alongside each other.
What is the least number of years it takes for a fossil to form?
It typically takes thousands to millions of years for a fossil to form, as the process involves the gradual replacement of organic material with minerals. However, under exceptional conditions such as rapid burial or extreme environmental conditions, fossils can form more quickly in as little as a few thousand years.
Radium and polonium are both radioactive elements that can emit harmful radiation. Radium was used in the past for its luminescent properties, while polonium is known for its use in static eliminators and sources of heat in space missions. Both elements have toxic effects on the human body if ingested or inhaled.
Lightning occurs when charges jump between what?
I don't know i searched this my self maybe this might help I'm having trouble answering this question on my homework!! Lighting occurs when charges jump between the ________________ cloud and the __________________ ground as a discharge.
Who worked with Dmitri Mendeleev?
He created the first periodic table of elements, arranged by atomic mass. His greatest accomplishment, however, was his ability to predict missing elements using this periodic table, and that is why he is considered the Father of the Periodic Table of Elements.
Mendelevium was first created in 1955 by a team of researchers led by Albert Ghiorso at the University of California, Berkeley. It was synthesized through the bombardment of einsteinium-253 with alpha particles.
What are the top four elements found in living things?
the answer is carbon,hydrogen,nitrogen, and oxygen.
There are really 6: CHNOPS
Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur. These are listed in the highest to lowest amounts and they are found in all living things.
To locate positions on earth scientists use units called?
Scientists use latitude and longitude coordinates to pinpoint locations on Earth. Latitude measures how far north or south a point is from the equator, while longitude measures how far east or west a point is from the Prime Meridian.
What two lines of defense does human skin have?
Human skin has two lines of defense: the physical barrier consisting of multiple layers of cells that prevent pathogens from entering the body, and the immune system, which includes immune cells that can attack and destroy any pathogens that manage to penetrate the skin.
Effects of slow earth movements?
Slow earth movements, such as weathering and erosion, can reshape the Earth's surface over long periods of time. These processes can lead to the formation of landforms like valleys, mountains, and coastlines. Slow earth movements also play a role in the distribution of resources and the cycling of nutrients in ecosystems.
Five superstitious belief about comets?
Superstitious beliefs about comets varies between different cultures. The most common superstitions are; tragedy, success in war, increase in fertility, impending judgment and a future catastrophic event.
A Crookes tube is a type of cathode ray tube that was used for scientific experiments and demonstrations in the late 19th century. It consists of a partially evacuated glass tube with electrodes that generate a beam of electrons. This device played a pivotal role in the discovery of cathode rays and led to the development of modern television and computer displays.
Why is there a sir in front of the name isaac newton?
In April 1705, Queen Anne knighted Newton during a royal visit to Trinity College, Cambridge. The knighthood is likely to have been motivated by political considerations connected with the Parliamentary election in May 1705, rather than any recognition of Newton's scientific work or services as Master of the Mint.
First canadian woman on the moon?
Roberta Bondar was the first female Canadian to have the privilege of traveling into space.
Roberta Lynn Bondar.
Canadian astronaut Roberta Bondar was one of the first Canadian astronuats and became the first Canadian woman in space in 1992
Roberta Bondar became the first female Canadian astronaut with her flight aboard Discovery in January, 1992. Julie Payette (CSA-NASA) was the first Canadian to board the International Space Station, in May, 1999. She operates the "Canadarm" robot manipulator arm.
How long did Tarquinius Superbus rule Rome?
Tarquin the Proud ruled Rome from 534 BC- 509 BC, so for 25 years.
Who was the first scientist to use the term element?
Now is considered that Plato used for the first time the word element.
What are the disadvantages of the phase contrast microscope?
Some disadvantages of phase contrast microscopy include lower resolution compared to other techniques such as fluorescence microscopy, difficulties in distinguishing different refractive index structures that are similar, and the requirement for careful alignment and calibration for optimal results.
How often does an annular eclipse occur?
Annular solar eclipses occur when the moon is too far away from earth to completely cover the face of the sun, leaving a thin 'ring' of uncovered sun around the edge of the moon. This is different from a partial eclipse in which the moon does not align with the sun in such a way that the sun is completely blocked. Annular eclipses would occur only when the moon is at or near apogee, its farthest approach to earth.
A+: when the moon is at apogee
Smallpox is a highly contagious and sometimes fatal disease caused by the variola virus. Prior to its eradication, it caused millions of deaths worldwide. Due to successful global vaccination efforts, smallpox has been eradicated, with the last known natural case occurring in 1977. However, there is concern about the potential use of smallpox as a bioterrorism agent, which is why samples of the virus are securely stored in specific laboratories.