Answer: Helps keep the species alive
Explanation:
When the eggs are externally fertilized, there is a greater chance for multiple different males to fertilize the eggs. This gives Gene diversity, and helps keep the species alive. It may also help keep the eggs in good condition. For example, when fish lay eggs, the water helps keep the eggs moisturized.
Which factor is most important for determining the phase in which a substance exists?
A. its volume
B. its density
C. its temperature
D. its mass
Answer:
The answer is Mass
Which of The following are challenges to implementing sustainable farming practices? Select two correct answers.
a. increased need for fertilizer
b. lack of pollinating insects
c. higher initial costs
d. increased erosion
e. increase labor costs
Answer:
I think its A and E
Explanation:
^^^^^^
The challenges to implementing sustainable farming practices: higher initial costs; increase labor costs.
What is sustainable agriculture?It is an integrated system which includes both plant and animal farming practices, which hence has a minimum effect on the environment. It involves using substances of natural origin and hence meets the needs without causing an adverse impact on the environment.
What are its advantages?It prevents pollution since the waste remains in the farm's ecosystem.There is a reduction in the production of waste, and the waste of one is used in the other.It saves energy as there is a lower requirement for non-renewable resources.It doesn't use agrochemicals.It involves methods that reduce soil erosion, like managing irrigation, covering the soil with tillage.What are its disadvantages?It takes more effort since the use of machines is minimal.Limited use of land and hence, mass production is not possible.What are the challenges?New farmers have to struggle with high labor demand since it involves less use of machines and hence more workers are required.Before harvesting their first crop, young farmers require a huge sum of up-front capital, which is even more for biologically diverse farms.Hence the correct options are (c) and (e) higher initial costs; increase labor costs.
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PLEASE HELP :)
please explain:
What is a mutation?
What effects can mutations have on an organism?
Are most mutations harmful or harmless?
thanks!!
Answer:
Mutations are when the RNA makes a mistake copying the DNA and causes genes to 'accidentally' change.
Mutations can do anything from accidentally changing hair or skin color to causing dangerous diseases.
Only a small percentage of mutations cause genetic diseases. Most of them are harmless.
PLEASE HELP
What do the arrows in the photo represent ❤️
Answer:
C
Explanation:
C because gravity pulls u down, not sideways. Balanced forces are balanced things. Bouyancy is floating.
What part of the cardiovascular system is directly responsible for nutrient transport?
Answer:
Circulatory system
Explanation:
It is the body's delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.
Answer:
blood
Explanation:
I took the test on edg.
Which is a property of every homogeneous mixture?
Each part of the mixture has the same appearance.
The mixture is made up of a solid dissolved in a liquid.
The characteristics of the mixture change within a single sample.
The components of the mixture change within a single sample.
Answer:
Each part of the mixture has the same appearance would be a property of a homogeneous mixture. A homogeneous mixture has a uniform composition and every part of the solution has the same properties.
Explanation:
hope it helps, please mark as brainliest
Answer:
Each part of the mixture has the same appearance.
Explanation:
Raccoons living in cities have learned to open the lids of garbage cans. This
is an example of an
?
O Physiological adaptations
O Structural adaptations
O Behavorial adaptations
O Selective breeding
Answer:I think the first one
Explanation:
Answer:
its behavorial adaption
Explanation:
Phycological adaption is less of what they are doing and more of how theybare doing it
and
structural adaption is how they adapt to their habitat
selective breeding just wouldnt make sense in this scenario
therefore the answer is behavoral adaption
hope this helps
Blood type is controlled by the inheritance of any two of the following alleles: IA, IB, or i. IA codes for type A blood. IB codes for Type B blood. Both IA and IB are codominant. The i allele is recessive and will cause Type O blood whenever two copies of the allele are present.
If a mother has Type AB blood (IAIB) and a father has Type O blood (ii), what percentage of their children are likely to have Type A blood?
A. 25%
B. 50%
C. 100%
D. 0%
Answer:
B
Explanation:
how many chromosomes are in each daughter cell after meiosis 2
Answer:
30 chromosomes
Explanation:
Each daughter cell will have 30 chromosomes
What organisms in the ocean absorb the most carbon dioxide?
A. fish
B. ocean mammals, like whales and dolphins
C. algae and marine plants
D. coral
Answer:
im pretty sure its C
Explanation:
What 3 numbers surround the element symbol?
Describe the steps of protein synthesis in a eukaryote.
The first step in protein synthesis is transcription. The transcription consists of the synthesis of messenger RNA by an enzyme(RNA-polymerase). This process takes place inside the nucleus.
The second step is translation the mRNA exits the nucleus and binds to a ribosome. Ribosomes are the sites of protein synthesis. For every three nitrogenous bases of the mRNA an amino-acid is synthesized. Amino acids are brought to the protein synthesis site by transfer RNA. From this process we are left with a polypeptide.
Transcription is the initial stage of the production of proteins. The process of transcription involves an enzyme producing messenger RNA (RNA-polymerase). The nucleus is where this process occurs.
What is protein synthesis in a eukaryote?The mRNA exits the nucleus and attaches to a ribosome in the second step of translation. Protein synthesis takes place in ribosomes. An amino acid is created for every three nitrogenous bases in the mRNA.
Transfer RNA transports amino acids to the location where proteins are synthesized. We are left with a polypeptide after this procedure.
The primary level of regulation of eukaryotic gene expression is transcription.
Therefore, the process of transcription involves an enzyme-producing messenger RNA (RNA-polymerase).
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The answer options are on the picture with the map.
1. Location of the letter (1) in the word Atlantic Ocean (East of the U.S)
2. Location of the word ocean in Indian Ocean
3. Location of the northern boundary in Florida
4. Location of the letter (o) in Arctic Ocean (on the left side of the map)
Answer:
Base your answer to the following question on the cross section below and ... C) 40 km toward the Mid-Atlantic Ridge ... According to the cross section, every 1 million years, the ocean floor bedrock ... Rifting of tectonic plates in eastern North America ... Which world map shows the locations where most earthquakes
Explanation:
hey guys, imma get straight to it:
17. Location of the letter (i) in the word Atlantic ocean (east of the U.S.)
A. 60 degrees east longitude
18. Location of the word ocean in Indian ocean
C. 15 degrees south latitude
19. Location of the northern boundary of Florida
D. 30 degrees north latitude
20. Location of the letter (O) in Artic Ocean (on the left side of the map)
B. 60 degrees west longitude
what they meant by i is the letter, on the map you look at the letter i and pinpoint it. same with O, hope this helps you out.
I need to know number 7. anything will help
Answer:
I'm not sure of the answer but I do believe it is C The Great Lakes
Can Someone Help Me Please
Answer:
its a
Explanation:
it genetics thats get passed down from parents
Answer:
A. The passing of characteristics from parent to offspring
Explanation:
Scientists have discovered a new molecule found in the blood of wallabies. The molecule contains only carbon, hydrogen, and oxygen. After further examination, scientists discovered that the C, H, and O are in a 1:2:1 ratio. This molecule is most likely a ________.?
Answer:
carbohydrate
Explanation:
The molecule discovered by scientists in the illustration is most likely to be a carbohydrate.
Among all the biomolecules, only carbohydrates have the molecular formula of ([tex]CH_2O[/tex])[tex]_n[/tex]. On the other hand, carbohydrates generally contain carbon (C), hydrogen (H), and oxygen (O) in the ratio 1:2:1.
Since the molecule discovered by the scientists has C, H, and O in the ratio 1:2:1, then, it is, therefore, best thought of as a carbohydrate.
How would someone with diabetes know they need medical help?
You may be diagnosed with diabetes because you go to the doctor for: persistent infections or a slow-healing wound. complications that are associated with prolonged high blood sugar levels, such as numbness or tingling in your feet. heart problems.
which method of heat transfer is what caused the green house effect on earth
Answer:
Radiative transfer
Explanation:
The greenhouse effect is a phenomenon of radiative transfer, the process by which the energy of light waves is exchanged in matter. Radiative transfer dictates what energy is reflected, absorbed, and emitted.
HELP I NEED FAST PLZZZ Belinda wrote the following phrase to describe the movement of particles in a state of matter.
"Marbles glide past one another."
Which state of matter did Belinda most likely describe?
Answer:
Liquid
Explanation:
Its liquid!!!
would the answer be B?
Answer:
yes it should be B.
24. The use of both pollen and spores in forensic studies is based on:
a. Baird's principle of exchange.
c. Lockhart's principle of exchange.
b. Locard's principle of exchange.
d. None of these choices.
What are the three main groups into which mammals are divided?
Answer:
The three groups into which mammals are divided are monotremes, marsupials, and placentals.
Answer:
Monotremes, Marsupials, and Placental mammals.
Mono mammals lay eggs
Marsupials are developed in the stomach/pouch
Placental mammals are developed in the fetus/uterus.
okay thanks but who guessed I don't wanna fail please just tell me the truth ill do anything if your right
PLEASE HELP ME!!!
A.) transport of molecules
B.) immune response
C.) energy conversions
D.) synthesis of new molecules
Complete the statement. (two words) A machine can help a person to
Answer:
Pesistently:Efficiently
Explanation:
What is the relationship between the Earth, moon, and Sun during a solar and Lunar eclipse?
Answer: The relationship between the Earth, moon, and sun during a solar and Lunar eclipse is Lunar eclipses only happen once the Moon is in the opposite direction of the Sun in the sky, a montly occurence, which is known as a full moon.
Explanation: Once the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When this happens, Earth passes directly between the Sun and the Moon, which causes its shadow to create a lunar eclipse.
Answer:
during a luner eclipse the earth comes between the sun and the sun and the moon blockimg the sunlight falling on the moon.
Rhinos and zebras will often be seen with small birds known as Oxpeckers on their back. This is because the Oxpeckers eat the parasites and other bugs that live on the zhino or zebra's skin. What type of ecological relationship is this?
1 Commensalism
2 Predation
3 Parasitism
4 Mutualism
Answer:
4. Mutualism
Explanation:
mutualistic relationship
Answer: 2
Explanation:
PS love your hair
Every monarch butterfly migrates. This statement _______. A) is true B) can be made true by change "Every" to "No" C) can be made true by deleting "monarch" D) can be made true by changing "Every" to "The final generation
Answer:
The answer is option A "Is True"
Explanation:
The Monarch is notable for its capacity to travel significant stretches, and the migrations in North America are one of the best common marvels on the planet. This butterfly is additionally periodically recorded from the English Isles, making it our biggest and most extraordinary traveler butterfly.
Each fall, a great many ruler butterflies move 3,000 miles from their favorable places in northeastern North America to spend the colder time of year in the timber lands of southwestern Mexico. Every movement is by new generation, so they can't gain from others. All things being equal, they depend on their qualities. Their antennae have a genetic clock that reveals to them when to move and to explore they measure the sun's situation not too far off with their eyes.
Which of the following is a nonrenewable resource?
A.wind
B. Natural gas
C.biomass
D.hydropower
Answer: C biomass
Explanation:
What are the Reactants of Respiration?
a
Water and sunlight
b
Carbon dioxide and Sunlight
c
Food and Oxygen
d
Carbon dioxide and water
Answer:c.food and oxygen
Explanation:A and B are wrong because respiration does not need sunlight. D us wrong because CO2 are products if respiration, not reactants.