Answers
Answer:
50%
Explanation:
Related Questions
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.
Answers
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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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.
Answers
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!
7. How many chromosomes do humans have?
Answers
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.
Answers
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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20. Dominant inheritance: Pattern of inheritance in which, when an individual receives contradictory
alleles for a trait, only the dominant one is
Answers
Answer:
Only the dominant one is expressed.
25 Which layer of soil holds the water trees use?
Answers
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
Answers
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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explanation of gender in female
Answers
Answer:
Female means a women gender.
Explanation:
this is the correct answer you want .
Answer:
First off, chromosomes are thread like structures found in the nucleus of a cell containing genes, which determine a certain characteristic, and DNA which is the chemical that is the basic unit of inheritance.
All human cells ( excluding people who has cell abnormalities etc. ) contain 46 chromosomes. However there's this one pair of chromosomes called the sex chromosomes ( X and Y chromosome ) which defines whether the person is a make or female.
A male will have XY chromosomes, but a female will have XX chromosomes. That's how you differentiate.
10 points! please help
Answers
Answer:
2,3,4,5
Explanation:
dnnsnsnszjjsnana
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
Answers
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.
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
Answers
Answer:
A.
Explanation:
Nitrogen Cycle
Answer:
D
Explanation: Its either D or C but I think its D oxygen wont hurt water
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?
Answers
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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HELPPP PLEASE ITS DUE IN 40 MINUTES!!!!!!!!!!! IM FAILING
Answers
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?
a What is the other name for a microbe ?
Answers
Answer:
microorganisms, bacillus, bacterium, virus or germ
Answer:
microorganism
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
Answers
its c), adipose tissue.
Answer:
C) Adipose Tissue
Explanation:
Adipose Tissue stores fats in the body!!
where do plants get their energy from for photosynthesis to occur? water, sunlight, oxygen, or food(glucose)
Answers
Answer:
Sunlight and Water
Explanation:
Plants can make food from absorbing sunlight
Explain the literal meaning of the statement "PREVENTION IS BETTER THAN CURE".
Answers
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 helpfulwhy terrace farming is advantageous in hilly and mountains
Answers
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
The compound interest on Rs/- 400 at 3% p.a. for 5 years is _____
Answers
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
Answers
Answer:
The answer is C
Explanation:
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.
Answers
Answer:
sorry but where is the diagram
Explanation:
Evaluate whether two places at the same altitude would have the same climate.
Answers
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.
How does the amount of precipitation affect the amount of weathering?
Answers
Answer:
Rainfall and temperature can affect the rate in which rocks weather. High temperatures and greater rainfall increase the rate of chemical weathering. ... Minerals in a rock buried in soil will therefore break down more rapidly than minerals in a rock that is exposed to air.
Explanation:
hope this helped :)
Two rough black guinea pigs when bred together have two offspring. One of them is rough white and the other is smooth black. What are the genotypes of these parents?
Parent 1 __________ Parent 2 ___________
Answers
Answer:
Parent 1 = RrBb
Parent 2 = RrBb
Explanation:
This question involves two genes in guinea pigs. The allele for rough coat (R) is dominant to smooth coat (r), and the allele for black coat (B) is dominant to white coat (b).
According to this question, two rough black guinea pigs when bred together produced two offsprings. One of the offsprings is rough white (R_bb) and the other is smooth black (rrB_). This means that, to produce such offsprings, the parents must be both heterozygous for both genes (RrBb). Please find the punnet square for this cross attached
someone please help me ASAP pleaseee
Answers
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
the picture shows what the question is
Answers
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 wave transfers _____?
Answer: energy
Answers
Answer:
Kinetic energy
Explanation:
Hope that helps
What are the signs of mumps?
Answers
1.Discomfort in the salivary glands (in the front of the neck) or the parotid glands (immediately in front of the ears). Either of these glands may become swollen and tender.
2.Difficulty chewing.
3.Pain and tenderness of the testicles.
4.Fever.
5.Headache.
6.Muscle aches.
7.Tiredness.
8.Loss of appetite
Answer:
The primary sign of mumps is swollen salivary glands that cause the cheeks to puff out. Other signs and symptoms may include:
Pain in the swollen salivary glands on one or both sides of your face
Pain while chewing or swallowing
Fever
Headache
Muscle aches
Weakness and fatigue
Loss of appetite
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
Answers
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
Answers
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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