3.
If a hawk eats 30% of the weasel population, weasels eat 30% of the mouse population, and
mice eat 20% of the wheat plants, calculate the total numbers of each organism that exist in
this ecosystem
a. Start by finding how many weasels there are to support the one hawk
i. # of weasels eaten 7.3 = total weasels
ii. total weasels x # of mice needed / .3 = total mice
iii. total mice x # of wheat plants needed / .2 = total wheat plants
Answers
Answer:
a. Approximately 1,003 weasels, 3,345 mice and 16,729 wheat plants per one hawk are in the ecosystem
Explanation:
The percentage of the weasel population eaten by a hawk = 30%
The percentage of the mouse population eaten by a weasel = 30%
The percentage of the wheat plants population eaten by a mice = 20%
a. One hawk needs 330 kJ of energy per day, which gives 330 kJ × 365 = 120,450 kJ per year
Let 'x' represent the number of weasels to support one hawk, we have;
0.3 × x = 120,450 kJ/year/(400 kJ) = 301.125
x = 301.125/0.3 = 1,003.75
The number of weasels required to support one hawk per year ≈ 1,003 weasels
The total weasels ≈ 1,003
ii) The number of mice needed, y = x/0.3 = 1,003.75/0.3 = 3,345.8[tex]\overline 3[/tex]
The total mice, y ≈ 3,345 mice
iii) The number of wheat flower needed, z = y/0.2
∴ The number of wheat flower needed, z = 3,345.8[tex]\overline 3[/tex]/0.2 ≈ 16,729.1[tex]\overline 6[/tex]
The total wheat plants ≈ 16,729.
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Answer:
100
Explanation:
that's mah answer correct me if I'm wrong
What is happening why are elephants being born with small/no tusks? Why is that increasing ?
Answers
A. El átomo de Thomson se caracteriza por ser esférico, con carga positiva, con electrones partículas alfa α partícula rebotada incrustados en él
Answers
Answer:
Debido a la presencia de partículas pesadas.
Explicación:
Debido a la presencia de carga positiva en el núcleo del átomo de Thomson, las partículas alfa α rebotaron cuando chocaron con el protón porque el protón es una partícula pesada y la presencia de neutrón la hace más pesada. Debido a la presencia de partículas pesadas en el núcleo, las partículas alfa no pueden atravesarlo. Solo puede pasar a través del átomo de Thomson donde hay un espacio vacío en el átomo.
In an imaginary species of monsters, the gene for head shape has two sides. The dominant side (H) codes for square heads. The recessive side (h) codes for triangle heads.
PLEASE ANSWER ASAP D:
DOES NOT NEED TO SHOW WORK JUST PLS ASAP
The father monster has a triangle head. The mother monster has a square head and her genotype is heterozygous.
Write the percentages of the possible genotypes & phenotypes of the monster children below:
HH: _ Square: _
Hh: _
hh: _ Triangle: _
In an imaginary species of monsters, the gene for head shape has two sides. The dominant side (H) codes for square heads. The recessive side (h) codes for triangle heads.
The father monster has a triangle head. The mother monster has a square head and her genotype is heterozygous.
Write the percentages of the possible genotypes & phenotypes of the monster children below:
HH: 0% Square: 50%
Hh: 50%
hh: 50% Triangle: 50%
Answers
The Human Immunodeficiency Virus (HIV) prevents the body from being able to fight off infections. TRUE or FALSE
Answers
Answer:
HIV (human immunodeficiency virus) is a virus that attacks the immune system. The immune system becomes weaker, making it harder for the body to fight off infections and some kinds of cancers. Most people who are diagnosed early and take medicines for HIV can live long, healthy lives.
(I found this answer from the web so credits to them :)
The factors that influence observations are known as ______
.hypotheses
.experiments
.variables
.evaluations
Answers
A guard bees job is to protect the hive from intruders, a job that can lead the guard bee to sacrifice its own life. If the guard bee cannot reproduce, how do genes for altruism increase in the population
Answers
Answer:
Altruism genes are dominant, so they can be inherited more easily. Bee colonies are so large that the loss of a few individuals will not affect the gene pool.
Explanation:
The altruistic genes are easily and sophistically inherited from the parents to their offspring. These genes are dominant that increase the size of the population by sacrificing their own life for the benefit to pass their genes to the next generation.
What do you mean by Altruism?Altruism may be defined as a behavior in which one individual sacrifices their own fitness value to increase the fitness value of the other individual that is genetically as well as closely related.
Altruistic behavior is often associated with Kin selection. The genes for altruism are exposed to the population directly from the parents and then passes to the offspring.
Therefore, it is well described above.
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#SPJ2
HELP ASAP WILL MATK BRAINLIEST TO THE FIRST CORRECT ANSWER
The oldest fossils discovered by scientists are of unicellular prokaryotes. Fossils of later
organisms suggest that organisms that are now classified as plants, animals, and fungi
evolved from protists. What does this fossil evidence indicate about the evolution of life
on Earth?
A At some point in Earth's history, plants and fungi evolved into animals.
B. Throughout Earth's history, many simpler forms of life became more complex.
c. Most early life forms lived near deposits of sedimentary rock.
D. Throughout its history, Earth's geologic formations have changed.
Answers
Answer:
Your correct answer is B.
Explanation:
Choose one of the 3 systems
(circulatory, respiratory, digestive )
Frog, earth worm, and squid
Describe at least two similarities between all 3 Also describe at least 2 differences
someone please help
would be extremely appreciated :)
Answers
Answer:
for digestive system ( similarities)Explanation:
1. All three digestive systems take up majority space inside their bodies
2. All three of the animals food prey begin through the mouth and end through the anus
The cell membrane controls what enters and leaves the cell. Which of the
structures in the diagram below is the cell membrane?
E
A
F
B
D
Answers
Answer:
c.B
Explanation:
which is true about organisms that survive longer?
Answers
Answer
Yes because a organ will survive longer than a heart
Explanation:
because i am smart
You find a small, elongated animal embedded in the sand with one end sticking out. Among other things, it has segmental musculature, a coelom, a notochord, and a complete digestive tract with an anus located partway down the body. This animal is
Answers
Answer:
a chordate.
Explanation:
Taxonomy can be defined as the process of naming, classification and description of living organisms such as plants and animals. The eight (8) biological classification (taxonomy) used for grouping and organizing organisms are; kingdom, domain, phylum, family, order, class, species and genus.
Generally, taxonomy helps scientist to have a good understanding and knowledge when studying various organisms.
A chordate can be defined as an animal found in phylum chordata of the animal kingdom such as vertebrates, cephalochordates, tunicates, etc.
The four (4) shared anatomical features or characteristics of chordates includes the following;
I. Notochord.
II. Dorsal hollow nerve cord.
III. Pharyngeal slits.
IV. Post-an_al tail.
In this scenario, you find a small, elongated animal that has segmental musculature, a coelom, and a complete digestive tract. Thus, this animal is a chordate.
Woolly mammoths became extinct thousands of years ago, while other species of mammals that existed at that time still exist today. The woolly mammoths became extinct, unlike the other species, because the woolly mammoths *
1 point
produced offspring that all had identical inheritable characteristics
faced a struggle for survival
learned to migrate to new environments
had certain inheritable traits that enabled them to survive
Answers
Answer:
had certain inheritable traits that enabled them to survive
hope this helps :)
All the meerkats that live in a wildlife refuge make up which of the following?
Population
Community
Biosphere
Niche
Answers
Which type of cell DOES have membrane-bound organelles?
A. eukaryotic
B. prokaryotic
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if you were facing a rainbow where would your shadow be
Answers
Answer:
Usually the radius of the arc is equal to about one-fourth of the visible sky, or 42 degrees, to the red. When there are showers nearby, simply look in the part of the sky opposite the sun at a 42-degree angle from your shadow; if there is a rainbow, that is where it will be.
or
behind your back
hope this helps
have a good day :)
Explanation:
Answer: your shadow is likely to be at the back side of your legs.
Explanation: hope it helped
what are the most common c0vId vaccine myths and how did they start?
Answers
Answer:
Infertility.
Explanation:
The most common corona vaccine myth is that it causes infertility in the people which is a false statement because it does not affect the fertility of people. The false reports that surface media which says that a spike protein is responsible for infertility in people causes the formation of myth that spreads throughout the world. Due to this false reporting many people hesitate to get vaccination so this false reporting of people confuse the people whether to get vaccination or not.
figure 12-1 shows the structure of an
A. DNA molecule
B. amino acid
C. RNA molecule
D. protein
Answers
Answer:
A
Explanation:
as is double helix and it also contain thymine which is only in DNA and RNA has uracil.
hope this make sense:)
Macromolecules like proteins and nucleic acid are large structures that are essential for biochemical processes. The figure shows the structure of DNA.
What is DNA?DNA is deoxyribonucleic acid that is a nucleic acid and is an important genetic material found in living organisms. It is composed of a double helix structure.
The nucleotide structure of the DNA constitutes deoxy sugar, phosphate groups, and nitrogenous bases like adenine, thymine, guanine, and cytosine.
It cannot be RNA as in RNA, uracil is present at the place of thymine. It cannot be an amino acid or protein as well because they are not composed of the amine, carboxylic, and the R group.
Therefore, the given figure is option A. DNA molecule.
Learn more about DNA here:
https://brainly.com/question/20055203
A science classroom has a model of a bean plant. It shows the stem, some leaves, a bud, and a flower. What could be added as another part of a plant?
Is it: beans
Is it: flowerpot
Is it:potting soil
Is it: watering can
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Answer:
answer is beans
Explanation:
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Which type of organism can obtain energy directly from any of the other organisms in an ecosystem?
Answers
Answer:
Heterotrophs
Explanations;
Tectonic Plate Theory states that the continents on Earth's crust are slowly/quickly moving because of gravity/water/pressure/convection currents
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Answer:
True
Explanation:
What is expected to happen to the species that is less suited to
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observed?
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Answer:
die out and move from the area are the answer
Explanation:
how does global warming affect el niño and la niña
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hope it helps a lot po and also mark me
thanks
hii! i’ll give brainliest pls help
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Answer:
b is correct
Explanation:
8/12÷4 division and simply your answer
Answers
Answer:
8/12÷4
=8/12*1/4
=8*1/12*4
=8/48
=1/6
=0.16
Explanation:
Note:if u change divide sign into multiplication do its reciprocal.
For those individuals who have an allergic reaction to cats, a company in Los Angeles promises relief. They offer a new line of cats genetically modified to eliminate or reduce their allergy-causing properties. The development of this new line of cats most likely involved A. using natural selection to produce a new variety of cat B. altering the reproductive rate of cats C. changing the behavior of cats D. manipulating the DNA of cats
Answers
Answer: D. manipulating the DNA of cats.
Explanation:
Deoxyribonucleic acid (DNA) refers to the organic chemical which consists of genetic information. The DNA can be found in the cells of organisms.
Since the new line of cats are genetically modified to eliminate or reduce their allergy-causing properties, then we can infer that the DNA of the cats have been manipulated. In this case, the allergy causing property won't be passed across to the offspring since the DNA has been manipulated.
When the particles are equally spaced apart they have reached:
A. Hypertonicity
B. Dynamic Equilibrium
C. Homeostasis
D. Osmolarity
Answers
Answer:
B. Dynamic Equilibrium
Explanation:
The result of diffusion is a gradual mixing of material such that the distribution of molecules is uniform. Since the molecules are still in motion, but an equilibrium has been established, the end result of molecular diffusion is called a "dynamic equilibrium".
Answer:
B. Dynamic Equilibrium
Explanation:
When the particles are equally spaced apart they have reached Dynamic Equilibrium.
What is the sclera
Please help <3
Answers
What is the negative impact of paper on society
Answers
Answer:
Deforestation has increased. Paper manufacturing used up to 40% of the global wood. The process of making paper releases nitrogen dioxide, sulfur dioxide, and carbon dioxide into the air, contributing to pollution such as greenhouse gases.
Explanation:
hope this helps!!!!!!
How is the equilibrium constant calculated?