When scientists first studied electromagnetic energy, many theories were proposed to explain how these waves travel through space. Which statement below best describes how scientists arrived at the current understanding of electromagnetic energy?
A.Scientists all agreed with a single researcher who proposed the current theory.
B.Scientists completed internet searches of all available data to arrive at the current theory.
C.Scientists debated the theories with each other and compared the theories with scientific observations.
D.Scientists were able to observe the light from the brightest star in space, which verified the current theory.
Answer: D
Explanation:
Seems the most reliable to me :) good luck
Answer:
How might Ice Cube benefit future scientists and other people
Explanation:
How might Ice Cube benefit future scientists and other people
If an ecosystem is no longer able to sustain its biodiversity, what potential impact could that fact have on the carrying capacity and growth rate of the human population over time?
It could potentially lead to a decrease in the carrying capacity of the ecosystem, which could in turn lead to a decrease in the growth rate of the human population over time.
What is carrying capacity?The carrying capacity of an ecosystem is the maximum number of individuals of a particular species that can be supported by the resources of that ecosystem. It is determined by the availability of food, water, and other resources, as well as by the presence of other species and environmental conditions. When the carrying capacity is reached, the population of that species will stabilize and may even begin to decline.
Carrying capacity is an important concept in ecology and population dynamics, as it determines the maximum size that a population can reach in a particular environment. It is important to note that carrying capacity is not fixed and can change over time due to a variety of factors, such as climate change, the introduction of new species, or the depletion of resources.
Learn more about carrying capacity, here:
https://brainly.com/question/2375972
#SPJ2
3. Forces of evolution include
a. DNA mutations
b. lack of migration
c. random mating
d. a large population size
Answer:
A. DNA Mutations
Explanation:
it evolves them in ways that even random mating cannot control
Answer:
A large population size:: summary population size is the number of individuals in a population. population density is the average number of individuals per unit of area or volume. the pattern of spacing of individuals in a population may be affected by the characteristics of a species or its environment.
What is the best explanation for why governments collect taxes?
Explanation:Governments pay for these services through revenue obtained by taxing three economic bases: income, consumption and wealth. The Federal Government taxes income as its main source of revenue. State governments use taxes on income and consumption, while local governments rely almost entirely on taxing property and wealth.
Answer: a) to fund services and programs
Explanation: ed 2021
Select the correct answer. Which of the following explains plantar flexion?
A. Pointing your toes down towards the ground.
B. Flexing your ankle towards the sky.
C. Rolling your foot outwards.
D. Rolling your foot inwards.
Answer:
A. pointing your toes toward the ground
Explanation:
Answer:
A Pointing your toes down towards the ground.
Explanation:
took the test
Which best describes plant classification?
Nonvascular plants are grouped into seedless and seeded plants.
Seedless plants are grouped into gymnosperms and angiosperms.
Gymnosperms are grouped into monocots and dicots.
Angiosperms are grouped into monocots and dicots.
Answer:
D
Explanation:
why must controlled fires be set in some ecosystems? what are some advantages and disadvantages?
Answer:well dry areas could catch fire and become out of hand or some plants may be harmed due to smoke
advantages:trimming area and making room
disadnstages:possible forest fire,harms plants,ruins animals homes
Explanation:
Can cells leave g0?
A. Yes
B. Very rarely, but yes when there is a injury on a certain cell
C. No
please help I need the help:)
What threatens the existence of a chimpanzee species?
Answer:
The primary threats to chimpanzees are habitat destruction, hunting, and disease. The increasing human population is encroaching ever deeper into even protected areas of chimpanzee habitats, and large scale logging is now a major threat to the forest primates of Africa.
Explanation:
Answer:
* Habitat destruction
* Hunting
* Disease
the following in NOT a component of a prokaryotic cell
a. nucleus
b. ribosomes
c. cell wall
d. flagella
Energy is converted from glucose, in the presence of oxygen, into numerous ATP molecules during
Answer:
Cellular respiration
Explanation:
What type of cells are blood cells? Click all that apply.
Answer:
The muscles cells and their body cell
What is the main function of the circulatory system in multicellular organisms?
Answer:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes.
Explanation:
Answer:
To transport materials throughout the body
Explanation:
The digestive system helps the body maintains homeostasis by supplying the organelles with...
A. waste products and fat
B. Water and energy
C. toxins and enzymes
D. Oxygen and water
Answer: I believe it’s C
Explanation:
The giant african land snail is an invasive species that is also the largest snail ons earth what is most likely consequence of introducing this invasive species into a stable ecosystem?
a. The native snail species will change their diet therefore destabilizing the ecosystem.
b. The native snail species will move to another area allowing the ecosystem to remain stable.
c. The native snail species will share their food with the invasive species stabilizing the ecosystem.
d. The native snail species will compete for resources with the invasive species and destabilize the ecosystem.
FUN FACT OF THE DAY (day:4)
A baby fox is called a kit
A baby alligator is called a hatchling
A baby armadillo is called a pup
A baby fish is called a fry or fingerling
Answer:
lol wow
Explanation:
A baby alligator is called a hatchling
If there's anyone who took the test, please help!
What results when there is very heavy competition between the two species?
A) interspecific competition
B) competitive exclusion
C) coexistence
D) evolution
Answer:
it's D
Explanation:
This is because heavy competition drives natural selection which increases evolution.
What role does intraspecies competition play in natural selection?
A. There is competition within a species for resources, and only some individuals will survive.
B. There is competition within a species for resources, and only the single most fit individual will survive. ( ITS NOT B)
C. There is competition between species for resources, and only one species will survive.
D. There is competition between species for resources, and only one individual per species will survive. ( I don't think it's this one...)
Describe the circumstances of a solar eclipse.
A solar eclipse happens when the Moon passes in front of the Sun and casts a shadow across Earth.
For a total eclipse to take place, the sun, moon and Earth must be in a direct line. The second type of solar eclipse is a partial solar eclipse. This happens when the sun, moon and Earth are not exactly lined up. The sun appears to have a dark shadow on only a small part of its surface.
HURRY IM ON TIMER
Which statement describes the blood type of a person with the alleles IAi?
It is type AB because I and i are codominant.
It is type AB because A and i are codominant.
It is type A because i is dominant and A is recessive.
It is type A because A is dominant and i is recessive.
Answer:
C
Explanation:
Which of the following is a product of the photosynthesis reaction? Please help
Explanation:
Where is option? Show option
What are the different nutrients used for the body's cells?
Answer:
There are six classes of essential nutrients required for the body to function and maintain overall health. These six classes of essential nutrients are: carbohydrates, lipids (fats), proteins, water, vitamins, and minerals.
Explanation:
How does the watershed affect the water body into which it drains and how do humans impact this water?
Answer:
A watershed – the land area that drains to a stream, lake or river – affects the water quality in the water body that it surrounds. ... They are influenced by naturally varying lake levels, water movement to and from groundwater, and amount of stream flow.
Explanation:
Sea Rocket Plant siblings Lif planted next to each other
a. Share their resources
b. Compete with each other for resources
c. Kill each other
d. Do nothing different
Help please this is my last question it’s question 4
Help please this is my last question it’s question 4
Answer:
C. Allele
An organism's DNA determines the traits it will haveWhich statement correctly explains how DNA determines the organism's traits?
Answer:
This question is incomplete as it lacks options, the options are:
1- The sugar and phosphate groups that make up the backbone are used in different sequences to encode an organism’s traits.
2- The bases A, T, C, and G are always present in equal amounts, so each organism is unique.
3- The bases A, T, C, and G in DNA are used in different sequences to encode an organism’s traits.
4- The bases A, T, C, and G are always in the same order in each organism, so each organism is unique.
The answer is 3. The bases A, T, C, and G in DNA are used in different sequences to encode an organism’s traits.
Explanation:
Deoxyribonucleic acid (DNA) is the genetic material in the cells of living organisms. It is a polymer biomolecule made up of nucleotides monomers. The DNA contains information that encodes the synthesis of useful products (proteins), which determines the traits in organisms.
A DNA molecule is made up of four nucleotide subunits viz: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). These bases, which are used in different sequences, carry the information that encodes an organism's trait.
What makes the structure of Carbon so unique? Why is Carbon considered the building block of all life? (3 sentence minimum answer)
Answer:
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
All living things contain carbon in some form. Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates. Carbon's molecular structure allows it to bond in many different ways and with many different elements.
Explanation:
What would happen if a new cell does not contain chromosomes ( best answer with explantion will get brainliest)
a. the new cell will not have instructions on how to function
b.nothing, chromosomes are not important to cells
c. the new cell will reporoduce uncontrollably
d.the new cell wil grow but cannot duplicate itself in the future
a. the new cell will not have instructions on how to function
Because all the genetic material is stored in the chromosomes. Thus, all information is in it.
Answer:
a. the new cell will not have instructions on how to function
Explanation:
Genetic information contained within DNA molecules regulates cell growth, replication, and cell repair. The long-chain, helical macromolecules of these deoxyribonucleic acids are formed from complex sequences of nucleotide monomers- secondary strands contain a complementary sequence joined to the leading strand by hydrogen bonding.
Chromosomes are the double-stranded DNA helixes wound around small molecules called histones. Genes or sequences of DNA encode instructions for the cell, in the form of proteins. This occurs via: the transcription processes, translation to become proteins, defining physical traits or phenotypes.
1. List the producers in this food web.
2.List the primary consumers in this food web.
3. List three secondary consumers.
4. List three tertiary consumers.
5. List two quaternary consumers.
Fluid in the inner ear creates a sense of ____.
Answer:
Balance
Explanation: