Each up-and-down column of elements on the periodic table.
A.Periodic Law
B.Group
C.Period
D.color of the chemical
Answers
Answer:
Groups are the vertical columns
Explanation:
Periodic law states that when elements are listed in order of their atomic masses they automatically fall into similar groups.
A period is the horizontal organization.
Answer D is irrelevant.
So the answer is B! Group!
Hope this helped!!!!
Related Questions
The end of the sun's life will include which event?
A.
a white dwarf cooling into a black dwarf
B.
the core collapsing after a supernova to form a neutron star
C.
a nebula aggregating together to form a protostar
D. a planetary nebula expanding into a red giant
Answers
Answer:A
Explanation: Once all the helium disappears , the forces of gravity will take over , and the sun will shrink into a white dwarf .
What do many ecologists feel is necessary for an area to be classified as a forest?
a.) several species of trees
b.) enough trees to create a close canopy
c.) consistent warm weather
Answers
Answer:
B. Enough trees to create a close canopy.
Explanation:
Forests may have several tree species but one very important feature of forests is their close canopy of dense trees, often arranged in several strata (or layers).
The reason why in forests shorter trees do not survive as well as trees that reach the top of the canopy, would be light distribution and access to sunlight.
What is the use of sunlight?Sunlight must be remembered that sunlight has the vital element for the plant survival without it the photosynthesis that cannot take place, or it will not be as the efficient as it would be if there was the full access to the sunlight. Sunlight activates the electrons on the chlorophyll and with that a plant has able to produce the ATP, which has the basic energy-producing unit in any living cell.
As such in the dense forests where we have tall and the shorter, trees, those that reach the highest point of the canopy have the access to most of the sunlight, while the shorter ones have to make do with whatever filters through the branches of the others.
Thus by not having as much access to sunlight, their photosynthetic processes are not as efficient. Those that adapt to lesser amounts of light, will survive, but the others would not.
Therefore, The reason why in forests shorter trees do not survive as well as trees that reach the top of the canopy, would be light distribution and access to sunlight.
Learn more about sunlight on:
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Which of the following sequence is correctly describes the path of sperm to formation to ejactulation?
Answers
Answer:
the answer is testes, vas deferens, prostate, urethra
In this article the author explains what scientists are trying to find out. What are the scientists in the article trying to find out?
Question 2 options:
A .when sulfur first appeared in Earth’s early atmosphere
B .how the proportions of different sulfur isotopes change in the geologic record
C .how the ozone layer formed and the effects of its formation
D .when oxygen increased in Earth’s early atmosphere
Answers
Hi, did you forget to mention that this question is about the article "The Rise of Oxygen in the Earth's Atmosphere" by American Museum of Natural History
Answer:
D. when oxygen increased in Earth’s early atmosphere
Explanation:
Right at the beginning of the article we can find out what scientists are trying to discover. This is because the introduction of the article introduces us to Grant Young and Jay Kaufman, a university professor and a geologist, respectively, who are the main scientists in the study that seeks to discover and set firm dates for the increase in oxygen in the Earth's primitive atmosphere.
Describe the similarities and differences of a community and a population.
PLZ HELP I ONLY HAVE ONE MORE DAY! I WILL MARK BRAINLIEST
Answers
Answer:
community: collection of populations. population: one area specified specie.
Explanation:
let's suppose you have a home garden where you have dogs birds crops trees and each one is a different specie.If you encounter on individual level then it's specie but on collective level- community-perhaps it's easy to say and give the example of pound community and field of wheat -population-.
Invasive species are one of the major threats to blodiversity. These species multiply quickly and compete with native species for food, sunlight,
space, and other resources. On the map, determine the area where native species will have limited resources available to them due to invasion.
Answers
Answer:
Top Left
Explanation:
On the map, the top-left part of North America, which is the Canada part, has the most threats due to the invasive species, which are also threats to the native species as they can easily multiply and eat the native prey.
What is an invasive species?Invasive species can outcompete native species for resources such as food, water, and habitat. This can lead to declines in native species populations, which can impact the entire ecosystem. Invasive species can alter the structure of ecosystems and disrupt natural processes. For example, some invasive plants can change the soil chemistry, while some invasive animals can alter the food web and cause changes in the behavior of native species. Invasive species can introduce new diseases to native populations, which can have devastating effects. For example, the introduced fungus that causes white-nose syndrome has killed millions of bats in North America.
Hence, On the map, the top-left part of North America has the most threats due to the invasive species, which are also threats to the native species.
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What pumps oxygen-rich blood to the body?
A. Right Atrium
B. Right Ventricle
C. Left Atrium
D. Left Ventricle
Answers
23 POINTSSSS! PLZ HELP MEEEE GUYSS! ILL GIVE BRAINLIEST TO THE PROPER ANSWER PLS!
What are 5 ways carbon dioxide is released into the environment?
What is the role of decomposers in the carbon/oxygen cycle?
How do humans impact the carbon/oxygen cycle
Answers
2) Decomposers reintroduce carbon into the environment.
3) Humans add carbon dioxide into the environment by burning fossil fuels.
What term refers to the lifestyle of a woman who slows her career advancement by choosing a career path that allows a mother flexible or reduced work hours?
Answers
Answer:
Mommy Track
Explanation:
the "Mommy Track" is a common term for a career path for women that can allow for greater work-life balance, thanks to reduced hours or flexible schedule, but often at the cost of career advancement.
Mommy track refers to the lifestyle of a woman who slows her career advancement by choosing a career path that allows a mother flexible or reduced work hours.
What is Mommy track?The mommy track is the way in which a woman's life prioritizes being a mother and can refer to work arrangements specifically for women in the workforce that facilitate motherhood, like flexible hours.
It also offers lesser opportunities for career advancement at the same time.
This is the general term for women who may allow for greater work-life balance thanks to shorter hours or flexible schedules but also at the cost of career advancement.
Thus, mommy track refers to the lifestyle of a woman who slows her career advancement by choosing a career path that allows a mother flexible or reduced work hours.
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In living things, what is the source of the Carbon 14 that is used in radiocarbon dating?
Answers
In living things, the source of Carbon-14 that is used in radiocarbon dating would be Carbon Dioxide in the atmosphere.
Who invented the cotton gin?
Answers
Answer:
Eli Whitney
Explanation:
Answer: Eli Whitney
Explanation:..........
What is one advantage of
convex mirrors for this use?
Answers
Answer:
It always gives a virtual, erect and a diminished image.
Hope this helps someone!!!
Manatees are an endangered mammal species that live in bodies of water in Florida. Manatees migrate from summer habitats to winter habitats and look for safe areas to feed and raise their young. People in boats need to give space to manatees to protect them from harm. What might conservationists do to increase manatee populations?
A. Increase the number of boats
B. increase the local fish population
C. increase the oxygen available in the water
D. increase the amount of protected habitat available
Answers
Answer: Im pretty sure it´s D.
Explanation: Manatees like to raise and feed their young in safe places so if we increase the amount of protected areas their population is more likely to increase.
Hope this helps!
The fossil record reveals that the diversity of flowering plants and the diversity of certain insect groups increased at the same time. How might you explain this?
Answers
Answer:
Insects and flowers are connected with each other for several life purposes such as for food, habitat and pollination.
The cause of diversity in flower and insects is associated with the process of pollination. In the process of pollination, both insects and flowers are mutually get benefits.
Insects move flower to flower in search of food and in the process it also carry pollen from flower to flower as well. Through insects the pollen reaches to different flower and show diversity and at the same time insects feed on various types of flowers and reproduce generation with variations.
Hence, the process of pollination makes a relationship between flower and insects diversity at the same time.
Which is a density-independent factor?
food
water
drought
habitat
Answers
Answer:
habitat
Explanation:
Density-independent factors, such as weather and climate, exert their influences on population size regardless of the population's density. In contrast, the effects of density-dependent factors intensify as the population increases in size.
how are carnivores and omnivores alike?
Answers
They are alike because they both eat meat.
Carnivores only eat meat and omnivores eat both meat and plants.
Why do people with ADHD/ADD have to take pills to stay focus??? How do those pills work and is there another solution besides taking pills?
Answers
Answer:
Explanation:
ADHD pills make you focus more, be less hyper and pay attention to things more.Some side effects are suppression of appetite, moodiness and headaches. Solutions besides taking pills are paying attention, getting restful sleep, improving nutrition.
How are sponges and the coral in coral reefs similar?
Both are a source of chemicals that may be used to fight human diseases, such as cancer.
Both release large amounts of oxygen into ocean waters, and the oxygen is eventually used by humans to breathe.
Both are widely found in deep, cold oceans as well as in warm, shallow waters.
Both are small ecosystems that do not have a heavy impact on other organisms.
Answers
Answer:
c I think
Explanation:
coral and sponges can live in a variety of places
Answer:
Both are a source of chemicals that may be used to fight human diseases, such as cancer.
Explanation:
Got it correct on Edg. 2021
What is the process of water moving down through the cell call
Answers
Answer:
Osmosis
Explanation:
Water moves across cell membranes by diffusion, in a process known as osmosis.
Select the best answer for the question.
19. The component that makes up the majority of blood is
itled fold
O A. platelets.
O B. plasma.
O C. white blood cells.
D. red blood cells.
Answers
Answer:
B. Plasma
Explanation:
We normally have 55% plasma in our blood stream, plasma pumps out all of the waste of products and brings nourishment to our metabolism.
Which is an example of a fungus? brown algae slime mold bread mold blue-green algae
Answers
Answer:
either blue green alge or bread mold
Answer:
its
Explanation:
bread mold
Which of the following best describes what happens during a cross-over event?
Answers
Answer:
Chromatids of homologous chromosomes exchange corresponding segments.
Explanation:
The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. Homologous chromosomes are present in the meiosis I, but not in meiosis the II. After pairing up of in the prophase I, homologous chromosomes are able to exchange some corresponding segments and a cross-over occurs. Thanks to the cross-over event, each chromosome will have a new combination of genes. Without this, parents will produce gametes with only two different gene combinations.
Answer:
Chromatids of homologous chromosomes exchange corresponding segments.
Ralph wanted to breed a pea plant that produced only purple flowers. He continued to breed purple-flower producing pea plants together over six generations. The results of Ralph's selective breeding are shown above. What did the selective breeding do to the population of pea plants?
A.
increased its genetic diversity
B.
decreased its genetic diversity
C.
caused a new species of pea plant to form
D.
caused a pea plant to exhibit a new characteristic
Answers
Answer:
B. decreased its genetic diversity
Explanation:
if the number of chances the white flower decreases, and there are more purple chances, then there is less genetic diversity.
Answer:
It's B
Explanation:
What does an urn-shaped age pyramid represent? A. a stable population growth B. a low birth rate C. a low death rate D. a growing population
Answers
Answer:D
Explanation:
What is the role of decomposers in an ecosystem?
A Decomposers break down dead organisms and return nutrients to
the ecosystem
B. Decomposers are herbivores.
C. Decomposers convert solar energy to chemical energy through the
process of photosynthesis.
D. Decomposers feed on small reptiles and mammals.
Answers
BRAINLIEST!!!! What are the types and morphs of boa constrictors?
Answers
Some of the morphs include albino boa, anery boa, Aztec boa, blood boa, boawoman caramel boa, eclipse boa, ghost boa, hypo boa, jungle boa, leopard boa, motley boa, paradigm boa, snow boa, snowglow boa, and sunglow boa.
Not sure if that’s the answer you’re looking for but I tried
Which process is necessary for sexual reduction but not asexual reproduction.
A.Production of new cells.
B. Copying from genetic material.
C. Meiosis.
D. Division of cells
Answers
Answer:Meiosis
Explanation:
Answer:
A.Production of new cells.
Explanation:
which of these is is the greatest density silver copper aluminium or gold
Answers
Answer:
Gold.
Explanation:
Gold has a density of 19.32 grams per cubic centimeter, while the others have between 2 and 11. Hope this helps!
Which of the following best describes how energy is transferred in a food web?
A. A All energy is transferred to each level of a food web.
B. B Energy flows from producers to one or more levels of consumers.
C. C Consumers transfer their energy to producers.
D. D Decomposers get their energy directly from the sun.
Answers
Answer:
B.
Explanation:
Energy flows from producers to one or more levels of consumers. Think of it this way:
A banana tree grows in the forest.
A monkey eats the bananas off of the tree, it now consumes the energy provided by the banana.
(whatever animal kills monkeys) kills the money for food, they have now consumed the energy of the monkey, as well as the banana the monkey has eaten previously.
The web continues, and energy continues to be distributed to each level of consumer, all starting with a single producer.
plzzz help :)) ecology
Answers
2. predators