Answer:
compost
Explanation:
I guess cause it will make the soil fertile
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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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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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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8. Are there differences between the chromosomes of males and females?
Answer:
Yes
Explanation:
Males have two x chromosomes (xx) and females have one x and one y chromosome (xy)
DNA is made up of pairs of nitrogenous bases. Which of the following
nitrogenous bases is paired correctly?
A. Guanine-guanine
B. Adenine-thymine
C. Adenine-guanine
D. Cytosine-thymine
DNA is made up of pairs of nitrogenous bases. The nitrogenous bases is paired correctly is Adenine-thymine. Thus, option B is correct.
How DNA is made up off?The DNA is formed by the nitrogen bases adenine, cytosine, guanine and thymine. The pairings between bases are -Adenine with Thymine and Cytosine with guanine. Nitrogenous bases are heterocyclic, planar, and relatively water-insoluble aromatic molecules.DNA consist of two types of nitrogenous bases-Purines and Pyrimidines.
Purines are the two common purine bases found in DNA are Guanine and Adenine. Pyrimidine-The two common pyrimidine bases found in DNA are Thymine and Cytosine.
According to the base-pairing rule in DNA- Adenine (purine) pairs with Thymine (Pyrimidine) and Guanine (purine) pairs with Cytosine. Adenine pairs with Thymine with two hydrogen bonds and Guanine pairs with Cytosine with three hydrogen bonds.
Thus, option B is correct.
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the picture shows what the question is
Answer:
Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype. Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype.
Explanation:
a What is the other name for a microbe ?
Answer:
microorganisms, bacillus, bacterium, virus or germ
Answer:
microorganism
Explanation:
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
For each of the genotypes below determine what the phenotype would be.
Hairy knuckles are dominant to non-hairy knuckles in humans.
HH_____________ Hh ___________ hh _________________
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!
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.
A wave transfers _____?
Answer: energy
Answer:
Kinetic energy
Explanation:
Hope that helps
where do plants get their energy from for photosynthesis to occur? water, sunlight, oxygen, or food(glucose)
Answer:
Sunlight and Water
Explanation:
Plants can make food from absorbing sunlight
In rabbits, black fur (B) is dominant to white fur (b). A purebred black furred male is bred with a female that had the recessive white fur
Answer:
All the offsprings will be black-furred (Bb)
Explanation:
This question involves a single gene coding for fur length in rabbits. The allele for black fur (B) is dominant to the allele for white fur (b). This means that a rabbit heterozygous for this gene (Bb) will have a black fur.
According to this question, a purebred black furred male (BB) is bred with a female that had the recessive white fur (bb). The parents will produce gametes as follows:
BB - B only
bb - b only
Using these gametes in a punnet square (see attached image), the genotypic proportion of the produced offsprings is as follows:
Bb, Bb, Bb, Bb
All Bb (heterozygous) means that all of the offsprings will be black-furred.
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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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?
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:
why terrace farming is advantageous in hilly and mountains
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
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
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
25 Which layer of soil holds the water trees use?
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.
10 points! please help
Answer:
2,3,4,5
Explanation:
dnnsnsnszjjsnana
Explain the literal meaning of the statement "PREVENTION IS BETTER THAN CURE".
Answer:
Prevention is the act of stopping something from happening or avoiding it altogether. So, the proverbial saying prevention is better than cure means that it is sensible to stop a bad thing or an illness from happening in the first place than to have to deal with awful problems, worse health issues or damages later.
hope it is helpfulBehavioural Adaptations of a desert snake, if possible please name two examples
Answer:
they can be in hot weather and they are some are nocturnal so they know to hide in day and out at night and they can go a while without food and they know how to hunt
Explanation:
they can be more defecive over food or water and they can be very smart and fast
Hello please help all help is appreciated
Answer:
50%
Explanation:
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 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!!
The compound interest on Rs/- 400 at 3% p.a. for 5 years is _____
Answer:
Compound interest = RS 63.7 (Approx.)
Explanation:
Given:
Amount deposit = RS 400
Rate = 3% = 0.03
Number of year = 5
Find:
Compound interest
Computation:
Compound interest = P[(1+r)ⁿ-1]
Compound interest = 400[(1+0.03)⁵-1]
Compound interest = RS 63.7 (Approx.)
please help i only have 10 minutes left i’ll give brainliest
Answer:
The answer is C
Explanation: