Answer:
The same
Explanation:
Half life is the time taken for the number of atoms in a radioactive sample to decrease to half of the initial number of atoms. It is also the time taken for the activity of a radioactive sample to decrease to half of its original value.
If samples A and B were obtained from the same rock, then they contain the same number of atoms having the same initial activity even though the samples were not prepared in the same way for analysis.
Hence, samples A and B have the same half life.
Why are protists, plants, fungi, and animals classified into the same domain but into different kingdoms ?
They are the same domain because they are all Eukaryotes. They are different from each other because they are not all Multicellular.
Protists, plants, fungi, and animals are classified into the same domain but into different kingdoms, because they share certain characteristics but are completely different in other traits.
Protists, plants, fungi, and animals are eukaryotic organisms because all their cells have a cell nucleus and they have membrane-bound organelles.Protists are unicellular (single-celled) eukaryotes that generally live in water environments.Plants, fungi, and animals are multicellular and exhibit evolutionary differential features (e.g., cell wall).In conclusion, protists, plants, fungi, and animals are classified into the same domain but into different kingdoms, because they share certain characteristics but are completely different in other traits.
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Put these items in order from largest to smallest, make sure to watch the video.
HELP RIGHT NOW PLZZZZZZZZZZZZZZ
Answer:
I think the answer is C
Explanation:
define reflex action in your own words
Answer:
reflex action is a way for your body to react to different stimuli. this action is automatic and unplanned and it is done by your body to prevent any further damage.
eg:
pulling you hand when you touch a hot pot
Modern humans are the product of evolutionary processes which have occurred over millions of years . True or false?
Sorry for all of this, I’m having trouble with these questions!
Answer:
True to an extent.
Explanation:
Modern humans are the product of evolutionary processes. This is true to some extent.
What is evolution?
Evolution is defined as the theory in biology that various types of plants, animals, and other living things on Earth evolved from other preexisting types and that distinguishable differences are the result of modifications in successive generations.
There are basically four types of evolution.
Divergent evolutionConvergent evolutionParallel evolutionCoevolutionHumans are one of the best example of evolution.
Thus, modern humans are the product of evolutionary processes which have occurred over millions of years. This is true to some extent.
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How is the environmental problem caused by humans? Describe the specific human activity that causes this problem.
Your response should be about 2-4 sentences long, or it may be written as bullet points
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
sana po makatulong
Muscle tissue that is attached to what is skeletal muscle
Answer:
tendons
Explanation:
Skeletal muscles are attached to bones by tendons, and they produce all the movements of body parts in relation to each other. Unlike smooth muscle and cardiac muscle, skeletal muscle is under voluntary control.
Stars are hot objects and give off heat and light. Scientist can collect this energy and tell what two things about stars (even though we cannot observe or measure the star directly).
a.composition
b.temperature
c.exact mass
d.shape
Answer: A or c
Explanation:
Stars are hot objects and give off heat and light. Composition and exact mass are the things about stars.
What is Stars?A star is the most well-known celestial object and the main building block of galaxies. The age, distribution, and composition of a galaxy's stars can be used to determine the galaxy's history, dynamics, and evolution.
In addition, stars generate and disperse heavy elements like carbon, nitrogen, and oxygen, and their characteristics are strongly tied to those of any planetary systems that may develop around them.
The study of the origin, development, and death of stars is thus at the heart of astronomy.
Therefore, Stars are hot objects and give off heat and light. Composition and exact mass are the things about stars.
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Question 12 of 15
A__ is a device that allows a car to use hydrogen gas to operate.
Explanation:
fuel cell is the correct answer.
provide an example of evolution in action
Answer:
The Peppered Moth is an example of evolution in action
Explanation:
Which of the following flower types are used to complete a design by adding depth?
O Line flowers
O Filler flowers
O Mass flowers
O Form flowers
Answer:
filler flowers
Explanation:
How does eutrophication affect an aquatic ecosystem
Answer:
Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants, depletion of fish species, general deterioration of water quality and other effects that reduce and preclude use”.
Explanation:
Answer:
It prevents sunlight from reaching aquatic life below the water’s surface.
Explanation:
Got it right on PLATO
Which is true ?
Both mountains and volcanoes are formed from pockets of magma that rise up during eruptions. However, mountains can grow to be much higher than volcanoes because they also grow from movement by tectonic plates.
Both mountains and volcanoes have the same outward appearance. However, volcanoes are formed by movements of tectonic plates, whereas mountains are formed from pockets of magma that rise up during eruptions.
Both mountains and volcanoes are formed by the same process of movement by tectonic plates. However, volcanoes can grow to be much higher than mountains because they also grow from pockets of magma that rise up during eruptions.
Both mountains and volcanoes have the same outward appearance. However, mountains are formed by movements of tectonic plates, whereas volcanoes are formed from pockets of magma that rise up during eruptions.
Answer:
I think the 1St one is better
in my opinion :)
Answer:
its D
Explanation:
i just did the test
Lipids, carbohydrates, and DNA all exist in human cells as long molecular chains. Which of the following describes how DNA differs from lipids and carbohydrates?
A. Only DNA has carbon Atoms
B. Only DNA is found in the cytoplasm
C. Only DNA is needed to create new cells
D. Only DNA contains genetic information
Answer:
D. Only DNA contains genetic information
Explanation:
DNA has the main function of carrying genetic information.
On the other hand, lipids and carbohydrates have the main functions of being energy sources.
Lipids are used for long term energy storage, while carbohydrates are used for quick energy.
DNA is different from lipids and carbohydrates because it contains genetic information, while the others don't.
So, the correct answer is D. Only DNA contains genetic information
Ryland is setting up a cooler to store flowers for a big event. Which of the following is NOT going to contribute to ethylene build up in his cooler?
O Gas leaks
O Succulents and cacti
O Old flowers
O Ripening fruit
Answer:
Gas leaks
Explanation:
I don't know anything about biology but I know gas leaks aren't good for plants
The option that will not contribute to ethylene building up in Ryland's cooler would be gas leaks.
Ethylene plant hormoneEthylene is an important hormone for plants that regulate processes such as leaf/fruit abscission, fruit ripening, and senescence.
Thus, keeping succulents and cacti, old flowers, and ripening fruit in the cooler would be a good recipe for ethylene building up in the cooler.
Gas leaks may not find its way into the cooler as long as it is closed.
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Which of the following processes involves the endocrine system and digestive system working together?
A. Oxygen is carried to blood cells as food is digested in the stomach.
B. Hormones stimulate the pancreas to release enzymes needed to break down food.
C. The brain sends signals to the muscles to chew food.
D. When the hand touches hot food, it is quickly moved away
Answer:
Hormones stimulate the pancreas to release enzymes needed to break down food
How do limiting factors control population growth?
Answer:With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases. With a negative relationship, population growth is limited at low densities and becomes less limited as it grows.
Explanation:
genes located inside or outside of the DNA molecule?
PLEASE HELP
Answer:
The DNA that contains your genes is stored in your cells in a structure called the nucleus.
Explanation:
What long tube around the kidneys, carries eggs in females?
(Frogs) please help
Answer:
The vocal sac is open to the mouth cavity of the frog, with two slits on either side of the tongue. To call, the frog inflates its lungs and shuts its nose and mouth. Air is then expelled from the lungs, through the larynx, and into the vocal sac.
Explanation:
A true-breeding yellow pea plant is crossed with a true-breeding green pea
plant, and all the offspring are yellow. What is the most likely genotype of the
offspring assuming a single gene trait?
А, уу
B. YY
C. Yy
Answer:
c maybe
Explanation:
Why do plants have trouble growing in space?
Answer:
The first challenge in growing plants in space is how to get plants to grow without gravity. This runs into difficulties regarding the effects of gravity on root development, providing appropriate types of lighting, and other challenges
Answer:
because, The first challenge in growing plants in space is figuring out how to get them to thrive in the absence of gravity. This presents difficulties in terms of the impact of gravity on root growth, as well as the provision of adequate lighting and other issues.
Explanation:
Gravity has an impact on root formation, but the scientists discovered that their space plants didn't need it to thrive. The space flowers showed common root growth patterns such as "skewing," where roots slant slowly as they branch out, when grown on a nutrient-rich gel in transparent petri plates.
Hi I need help with 6!
Answer:
Overpopulation and Overconsumption, plastic production, disruption of the reefs, draining streams rivers, and production of black carbon
What could contribute to a mass extinctions event
Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
Jupiter's Great Red Spot is believed to be ____________.
a. a volcanic area
b. the effect of a mountain system on Jupiter's wind system
c. a zone of high ammonia concentration
d. a large rotating hurricane-like storm (cyclone)
e. none of these
The Great Red Spot, a permanent region of high pressure in Jupiter's atmosphere, is responsible for producing the largest anticyclonic storm in the Solar System. Thus, option D is correct.
What Jupiter's Great Red Spot rotating hurricane-like storm?In Jupiter's atmosphere, there is a huge, rotating storm known as the Great Red Spot. It is similar to an Earthly hurricane, but considerably bigger.
The Great Red Spot on Jupiter is larger than Earth by more than two times! Within this storm, winds can gust as high as 270 miles per hour (ca. 435 km/h).
When astronomers first focused their telescopes on Jupiter in the 17th century, they discovered a striking reddish patch on the massive planet. More than 300 years later, the Great Red Spot is still visible in Jupiter's atmosphere. It is now understood to be a big storm that is rotating like a cyclone.
Therefore, Jupiter's Great Red Spot is believed to be (a large rotating hurricane-like storm (cyclone)).
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state the importance of calcium and zinc in our body
Answer:
Calcium is a mineral found in many foods. Almost all calcium is stored in bones and teeth to help make and keep them strong. Your body needs calcium to help muscles and blood vessels contract and expand, and to send messages through the nervous system. Calcium is also used to help release hormones and enzymes that affect almost every function in the human body.
Zinc, a mineral that people need to stay healthy, is found in cells throughout the body. It helps the immune system fight off invading bacteria and viruses. The body also needs zinc to make proteins and DNA, the genetic material in all cells. During pregnancy, infancy, and childhood, the body needs zinc to grow and develop properly. Zinc also helps wounds heal and is important for our ability to taste and smell. Zinc is found in a wide variety of foods, and is found in most multivitamin/mineral supplements.
Explanation:
write the interrelationship between orbanization and
Sustainable development
Answer:
A sustainable urbanization means not only a conversion of the environment without modifications in agricultural land and forest to turn them into cities; it is about radical changes in the shape, economy, demography, and metabolism of urban ecosystems.
✎﹏☾✦☁️❣️ Briefly explain the process of photosynthesis .❣️☁️
Answer:
hope this will help u
Explanation:
photosynthesis is the process in which plant make their own food with the help of sunlight,water and carbon dioxide. water and carbon dioxide are raw materials in photosynthesis because they help to prepare their food.During photosynthesis, plants take in carbon dioxide and water from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
Explanation:
PHOTOSYNTHESIS
This is a process in which green plants and other organisms make their own food from simple inorganic substances which are sunlight ,CO2 and chlorophyll.
Which of the following is a true statement about reproduction?
A. Sexual reproduction requires two individuals from the same species; two males, two females, or a male and a female. B. Asexual reproduction requires two individuals from the same species—two males, two females, or a male and a female--to produce offspring. C. Sexual reproduction requires a male and a female gamete. D. Asexual reproduction requires a male and a female from the same species.
A . sexual reproduction requires two individuals from the same species, a Male and a female
but sexual reproduction refers to the union of a Male and a female
Select the correct answer.
Mangrove trees can only survive in moderately saline water. What are such organisms called?
A. Euryhaline
B. Stenohaline
C. Mesohaline (incorrect)
D. Polyhaline
E. Oligohaline
(I took the test and put C and got it incorrect)
I believe the answer is A
Which of the following was from the Flemish timeframe (era)?
O Created arrangements using a single flower
O striped/flame colored tulips were popular
O used daffodils as a form of currency
O Daffodils were traded similar to current day "stocks"
Answer:
Striped/flame colored tulips were popular
Explanation:
I took the test and said I got it right plus in this typical time colored tulips were used for many things besides them being in ponds