Answer:
The major benefit, of course, is the conservation of soil and water. Terraces reduce both the amount and velocity of water moving across the soil surface, which greatly reduces soil erosion. Terracing thus permits more intensive cropping than would otherwise be possible.
Explanation:
there i know its alot but i want you to get the right answer
How can you apply the statement "PREVENTION IS BETTER THAN CURE" to the situation where you have mosquitoes in your home?
Answer:
the mosquitos in our home prevented in this statement above
How many nucleotides are there in 5 codons?
Answer:
15 because one codon is three nucleotides
The LD50 for arsenic in humans is 13mg/kg. Which of the following approaches should be used to
calculate the number of grams of arsenic it would take to reach the LD50 in a 140-pound person?
Answer:
B
Explanation:
ap classroom
It would take 0.827 g of arsenic to reach the LD50 in a 140-pound person.
The lethal dose 50 (LD50) for arsenic in humans is 13 mg/kg.
What is the LD50?LD50 is the amount of a material, given all at once, which causes the death of 50% of a group of test animals.
To calculate the number of grams of As that it would take to reach the LD50 in a 140-lb person, we need to convert 140 lb to kg using the conversion factor 1 lb = 0.454 kg.
140 lb × 0.454 kg/1 lb = 63.6 kg
The LD50 of As is 13 mg of As per kg of body mass. The mass of As to reach the LD50 in a 63.6-kg is:
63.6 kg BM × (13 mg As/1 kg BM) × (1 g As/1000 mg As) = 0.827 g As
It would take 0.827 g of arsenic to reach the LD50 in a 140-pound person.
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The following diagram shows structures of three molecules produced by partial digestion of a fat, carbohydrate, or protein. They have about the same molecular weight and are shown in no particular order. Though all three molecules have similar molecular weights, they have different amounts of stored chemical energy. Based on the chemical structures of these molecules, by comparison, Molecule has the highest energy content.
Answer:
sorry but where is the diagram
Explanation:
A scientific investigation is replicable if
A.
the same investigation is conducted in two different laboratories by two different scientists and the same results are produced.
B.
one scientist performs many different experiments in his or her own laboratory.
C.
two different scientists perform different experiments in their own laboratories but they produce the same results.
D.
one scientist performs the same experiment in his or her own laboratory and different results are obtained.
Answer:
I believe the answer is d
Answer:
"the same investigation is conducted in two different laboratories by two different scientists and the same results are produced"
Explanation:
I just did this on study island and got it right!
The amount of nitrogen in the atmosphere is affected by:
A) sewage treatment plants
B) inorganic nitrogen fertilizers
C)pollution from factories
D)all of the above
HELP PLEASE
When Earth, the moon, and the sun align, which order would lead to a solar eclipse? (1 point)
A. sun–Earth–moon
B. moon–Earth–sun
C. sun–moon–Earth
D. moon–sun–Earth
Answer:
C. sun-moon-Earth
Explanation:
For a solar eclipse to occur, the moon must be between the sun and Earth.
When Earth, the moon, and the sun align, the correct order that leads to a solar eclipse is sun–moon–Earth. Thus, the correct option for this question is C.
What is a Solar eclipse?The Solar eclipse may be defined as a type of natural phenomenon that involves the passage of the moon between the sun and the earth. As a result of this, it obscures the Earth's view from the Sun either partially or completely.
The correct order of the solar eclipse clears one thing with respect to the actual location of the moon is always found between the sun and the earth. Now, among the options given, only option C matches this required instance.
Therefore, the correct order that leads to a solar eclipse is sun–moon–Earth. Thus, the correct option for this question is C.
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Which behavior is an instinct?
A. An elk gets used to hikers and stops running away.
B. A pet dog sits and waits for a treat after its daily walk.
C. A pigeon visits a local park to look for dropped crumbs.
D. A robin builds a nest using mud, grass, and small twigs.
Answer:
D
Explanation:
A robin building a nest is not learned or taught like the others. It is just instinctive for robins to build nests.
Answer:
D
Explanation:
The rest are learned habits
A sea otter is critical to the functioning of the ecosystem in which it lives. It affects the
survival and abundance of many other species in its community. It is a(n) species.
Answer: A keystone species.
A sea otter is critical to the functioning of the ecosystem in which it lives. It affects the survival and abundance of many species because it is a keystone species. Option a is the correct answer.
What is an ecosystem?Living and nonliving organisms coexist in an ecosystem. Living are called "biotic" factors, while non-living are called "abiotic." Different ecosystems have different biotic organisms, such as animals and plants. In some ecosystems, a particular species has more importance. They are called keystone species.
This species is key to the functioning of the ecosystem. Without the keystone species, the ecosystem would not function well. The statement's example is the role of the sea otter.
Some species are found in abundance in some ecosystem. If they are hunted for their resources, their numbers will decline. This type of species is called an endangered species.
Hence, the sea otter is a keystone species. It maintains the survival of many other species in the ecosystem. Option a is correct.
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discuss the importance of vernalization
Answer:
The important of vernalization it includes early flowering there by shortening the vegetative cycle of the plants (it is a production of more than a one crop in one year) the winter variety crops can be converted to spring variety (it's the protection from the freezing of injury) it helps in the increasing of yield of the plants.
Maybe this answer might help u out.
What might happen to the cell if it were suddenly unable to use lipids?
A. It would not be able to make proteins or transfer substances to other cells
B. would not be able to transfer genetic information to other cells
C. It would not be able to store energy or communicate with other cells
D. It would not be able to store water or protect itself from viruses
Explanation:
I don't know the exact answer but I can tell you that lipids are considered the building blocks of cells . the body uses lipids as a storage for energy and insulation and to make cell membranes. without lipids the cell will die . the way lipids function is .... lipidsfunction as an energy reserved regulate hormones transmit nerve impulses cushion vital organs and transport fat soluble nutrients.
I hope this can help you a little bit good luck!
Answer:
B
Explanation:
Lipids are used to store information.
25 Which layer of soil holds the water trees use?
A wave transfers _____?
Answer: energy
Answer:
Kinetic energy
Explanation:
Hope that helps
What spheres are affected by pesticides? Is the atmosphere, geosphere, hydrosphere, and biosphere affected by pesticides?
a What is the other name for a microbe ?
Answer:
microorganisms, bacillus, bacterium, virus or germ
Answer:
microorganism
Explanation:
HELPPP PLEASE ITS DUE IN 40 MINUTES!!!!!!!!!!! IM FAILING
Focus on the spiders characteristics that you observe. In this instance, the spider is white. The spider also happens to be on white pedals.
Which spider would be more effective at catching prey. One that blends in or one that stands out?
Which spider is most likely to live and pass on it's genes? The one that has genes that allow it catch prey, or the one that doesn't?
Which of the following is not a potential benefit of the Human Genome Project:
A. Agriculture
B. Discovery of DNA
C. DNA forensics
D. Risk assessment
Answer:
discovery of DNA is not a benefit of Human Genome Project
Explanation:
Which one of the following types of the tissue stores fat in the body?
A) cartilage
B) bone
C) adipose tissue
D) fibrous connective tissue
its c), adipose tissue.
Answer:
C) Adipose Tissue
Explanation:
Adipose Tissue stores fats in the body!!
Which of the following is not one of the four main tissue categories?
A) muscle
B) neural
C) bone
D) connective
Answer:
c Bone
Explanation: There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue.
PLEASE ANSWER FAST!! :)
Which of the following biogeochemical cycles can be influenced by human activity and cause eutrophication of a local water supply?
nitrogen cycle
water cycle
oxygen cycle
carbon cycle
Answer:
A.
Explanation:
Nitrogen Cycle
Answer:
D
Explanation: Its either D or C but I think its D oxygen wont hurt water
20 POINTS
In the _____ the virus can reproduce so rapidly that it causes the cell membrane to disintegrate.
a lysogenic
b lactic
c lymphatic
d lytic
In the lytic cycle, the virus introduces its genome and replicates after that it assembles a new virus body and ruptures the cell membrane, hence option d is correct.
What are the lytic and lysogenic cycles?In a lytic cycle, the virus transfers its genome into a host cell and starts replication by seizing control of the host's cellular machinery.
When the infection is finished, the host cell is lysed, releasing the freshly duplicated and assembled virus particles into the surrounding waters.
The virus replicates by integrating its genome with the genome of the host cell during the lysogenic cycle, which is also known as a non-virulent infection.
Therefore during the lytic cycle, the virus-cell membrane is disintegrate and the lysogenic cycle happens without killing the host, hence option d is correct.
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7. How many chromosomes do humans have?
Answer:
46 chromosomes
Explanation:
Humans have 23 pairs of chromosomes, Which is a total of 46 chromosomes.
Answer:
Humans have 23 pairs of chromosomes, for a total of 46 chromosomes.Aug 15, 2020
Explanation:
Ask Go.ogle
What is most likely to happen if predators are introduced to an ecosystem with no known predators?(1 point) An increase in species migration. An increase in species differentiation. A decrease in species evolution. A decrease in species abundance.
Answer:
A decrease in species abundance.
Explanation:
(this was correct- connections academy)
if predators are introduced to an ecosystem with no known predators there is a decrease in species abundance.
What is the role of predators in the ecosystem?
Predators are an important part of a balanced ecosystem. Predators remove vulnerable prey, such as the old, injured, sick, or very young, leaving more food for the survival and success of healthy prey animals.
Also, by controlling the size of prey populations, predators help slow down the spread of disease.
Thus, if predators are introduced to an ecosystem with no known predators there is a decrease in species abundance.
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Evaluate whether two places at the same altitude would have the same climate.
Answer:
Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. Farther inland, the climate is influenced by cold or hot air from the land. So, it depends on where you are on the world.
After reading this paragraph, what
do you think the rest of the text will
be about?
It will explain the steps you take to
1) choose a career after volunteering
somewhere
It will describe where the closest
places to volunteer are located
It will show how different kinds of
volunteer work can be both fun and
rewarding
It will argue that volunteering is better
at an animal Shelter than in nature
Answer:
It will explain why the writer believes that volunteering is better at an animal shelter than in nature.
Explanation:
Typically if an opinion or claim is made then the writer will give his/her reasons.
13. Which of the following weather conditions are most likely to be found in a low- pressure system? 0. clear and calm skies 2) O partly cloudy Dow) O sunny skies O thunderstorms
Which representation of data visualizes potential relationships between variables?(1 point) a table a graph a chart a list
Answer:
A chart
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A chart is a representation of data which visualizes potential relationships between variables. Some examples include pie chart, bar chart, etc.
A bar graph also known as a bar chart can be defined as the graphical representation of data (informations) by using vertical columns or rectangular bars. When a data set is observed, a bar chart can be used to graphically represent or record the total or overall amount of information contained therein. Generally, bar charts are used for the comparison of informations obtained from a data collection by representing each value (information) with rectangular bars respectively.
Answer:
A graph
Explanation:
Took the quick check xd :)
which statement about the Aqua culture industry in the US is true
Answer:
The true statement about the aquaculture is that It means “cultivating small acreages of land.”
someone please help me ASAP pleaseee
Answer:
Option C is correct. 50% of the children will be able to roll their tongue
Explanation:
Available data:
The diallelic gene TR controls the ability to roll the tongueThe T allele expresses the ability to roll the tongue and is dominantThe t allele expresses the inability of tongue rolling and is recessiveWoman: Nontongue roller, ttMan: Heterozygous for tongue rolling, TtCross: the Man and the woman
Parentals) Tt x tt
Gametes) T t t t
Punnett square)
T t
t Tt tt
t Tt tt
F1) 2/4 = 1/2 = 50% of the progeny will be heterozygous tongue roller individuals, Tt
2/4 = 1/2 = 50% of the progeny will not be tongue rollers, tt
50% of the children will be able to roll their tongue
How can humans interfere with the phosphorus cycle?
Answer:Humans affect the phosphorus cycle mainly by the use of fertilizers and raising livestock, especially hogs.
Explanation: Hope this helps:)