Introduction of an invasive species to an ecosystem can have some harmful effects including predation of existing species, competition for resources, and overpopulation. These invasive species are introduced primarily by humans when humans travel from foreign countries, when cargo ships bring goods from foreign countries, or when exotic pets are lost or released. Once these invasive species to reproduce, they can take over an entire ecosystem.
which public policy strategy would best control the spread of invasive species?
Answers
B is the most effective and feasible, and it prevents the initial introdution of the species
Related Questions
Which statment describes the relationship
between the reactants of photosynthesis
and the products of cellular respiration?
A:Cellular respiration and photosynthesis are
unrelated
B:The reactants of cellular respiration are the
reactants of photosynthesis
C:The products of cellular respiration serve as
the reactants of photosynthesis
D:The products of cellular respiration are the
products of photosynthesis
Answers
Answer:
the answer is c. the product of cellular respiration serve as the reactants of photosynthesis
birth defects due to radiation are a concern also. why is a fetus especially at risk?
Answers
Of the babies that survive, however, few will have birth defects related to the exposure, regardless of how much radiation they were exposed to. Large radiation doses to the fetus during the more sensitive stages of development (between weeks 2 and 18 of pregnancy) can cause birth defects, especially to the brain.
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You are a botanist looking at the plant color in a new breed of Snapdragon. The two parent plants are Blue and Green and when you cross them you make F1 plants that are Cyan in color (a light aqua color). The ratio of offspring is as follows: There were 42 plants with Blue flowers (R1), 39 plants with Green flowers (R2) and 86 plants with Cyan flowers. Is the number of your progeny consistent with a single-gene incomplete dominance inheritance pattern
Answers
Answer:
Incomplete dominance is the inheritance pattern where the dominant allele did not mask the recessive allele completely and form a mix of both alleles. Here the inheritance is the incomplete inheritance. The ratio of F2 generation is 1:2:1.
Given:
R1R1 = 42
R2R2 = 39
R1R2 = 86
Total R1 alleles = 2*42+86 = 170
Total R2 alleles = 2*39+86 = 164
Total alleles = 334
Frequency of allele R1 = 170/334 = 0.51
Frequency of allele R2 = 164 / 334 = 0.49
Expected number of each phenotype:
Total population = 167
Blue = R1R1 = 0.51 * 0.51 * 167 = 43.44
Green = R2R2 = 0.49 * 0.49 * 167 = 40.10
Cyan = 2*R1*R2 = 2*0.51*0.49*167 = 83.46
Phenotype Observed(O) Expected (E) O-E (O-E)2 (O-E)2/E
Blue 42 43.44 -1.44 2.0736 0.0477
cyan 86 83.46 2.54 6.4516 0.0773
green 39 40.1 -1.1 1.2100 0.0302
Total 167 167 0.1552
Chi-square value = 0.155
Degrees of freedom = no. of phenotypes – 1
Df = 3-1 = 2
Critical value = 5.99
Chi-square value of 0.155 is less than the critical value of 5.99. So we accept the null hypothesis.
Abiotic Factors and biotic factors in the oxygen cycle
Answers
Oxygen cycle The cycling of oxygen between the biotic and abiotic components of the environment (see biogeochemical cycle). ... In the process of respiration oxygen is taken in by living organisms and released into the atmosphere, combined with carbon, in the form of carbon dioxide.
if my pet dog fell ill i should take him to hospital ?true or false
Answers
True or False: Purine is connected to pyrimidine using oxygen bonds.
Answers
Answer:
False
Explanation:
In DNA double helix molecule, there are four types of nitrogenous bases: adenine, guanine, cytosine and thymine. Purines (i.e., adenine, guanine) and pyrimidines (i.e., cytosine and thymine) hold DNA strands together via hydrogen bonds. In base pairing, guanine always pairs with cytosine through 3 hydrogen bonds, while adenine always pairs with thymine by 2 hydrogen bonds. Hydrogen bonds are a type of dipole–dipole interaction where a hydrogen atom is covalently bonded to a very electronegative atom (e.g., Nitrogen or Oxygen).
01:46:45
Which statement correctly describes a feature of the rock cycle?
O Rocks are preserved through the process.
O Rocks change from one type to another.
O Different rock groups are not related to one another.
O Rocks change from one type to another in a specific order.
Answers
Answer:
The correct description of a feature of the rock cycle is:
O Rocks change from one type to another.
Explanation:
Sedimentary, metamorphic, and igneous rocks are the three main rock types. Together, they form the universal rock cycle. A sedimentary rock, for example, can change from its known state to another state by passing through crystallization, metamorphism, erosion, and sedimentation. There are no specific orders for the change. The processes that they pass through determine the resulting type.
Answer:
Rocks change from one type to another.
Explanation:
Can some help me out please
Answers
Answer:
Codominance
Example:
A red and white spotted rose is an example of codominance while a pink rose when crossed with a red and white rose is an example of incomplete dominance.
.They are usually found in air * True False
Answers
Answer:
true
Explanation:
I hope it helps
pa brainliest po
100 POINTS..!!
what is ANTI nuclear?? NOT JUST nuclear BUT ANTI nuclear.
PUT 3 FACTS ABOUT ANTI nuclear ENERGY.
ILL GIVE BRIANLIEST.!
Answers
Antinuclear energy or movement, are the social movement opposed to the production of nuclear weapons and the generation of electricity by nuclear power plants.
In the world of purple people eaters, one eye (E) and one horn (H) are dominant traits. Purple people eaters
can also have two eyes (e) and two horns (h), which are recessive traits.
Perform a dihybrid cross among a male who is heterozygous for both traits and a female
who is heterozygous for both traits. Use the results for your prediction below.
HOW MANY ONE-EYED TWO-HORNED PURPLE PEOPLE EATERS ARE THERE?
O 3
1
0
Ο Ο Ο
16
9
O4
12
Answers
the answer is 16 because its like greater then you now what am saying its the correct answer
According to the diagram how are the three components
of a nucleotide important to the structure of DNA?
Answers
Answer:
A nucleotide of DNA is made up of three parts: a nitrogenous base, a 5-carbon sugar, and a phosphate group. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.
The phosphate group linked with deoxyribose sugar to make the framework for the nitrogenous bases. The phosphate group and sugar molecule make the DNA backbone and support it. These backbones hold nitrogenous bases and make a monomer of DNA. Nitrogenous bases make DNA stable and hold both backbones together. These bases also make DNA functional.
The benefit of social behavior that refers to searching for and collecting food is referred to as .
Answers
Answer:
Ngl bro i like your pfp, its fire
Answer:
Foraging
Explanation:
PLEASE HELP! Scientists performed studies on mussels and clams. They placed these different species in fresh water that had contaminants commonly found in agricultural runoff and human and animal waste. Within a few days, the mussels and clams had removed the majority of the contaminants. How do these findings relate to ecosystem services in natural environments?
A.
Introducing new species of mussels and clams will help reduce erosion and runoff into rivers.
B.
Increasing the biodiversity of mussels and clams in freshwater ecosystems will improve water quality.
C.
Growing mussels and clams in rivers will provide humans with a steady source of food.
D.
Using a single species of mussel or clam will remove greenhouse gasses from the atmosphere.
Answers
Answer:
The answer is B I belive, hope this helps
Answer:
B
Explanation:
Biodiversity basically means to increase the value or in this case, species of the mussels and clams so that they can improve water quality. Improving the water quality would be a service to the ecosystem. Therfore, I believe the answer is B.
During mammalian embryogenesis, the first differentiation event that occurs leads to a polarization of the outer cells of the 16-cell morula. This outer layer of cells forms the trophectoderm and the inner, apolar clump of cells become the inner cell mass. The inner cell mass will give rise to:
Answers
Answer:
the entire embryo
Explanation:
The trophectoderm refers to the polarized single cell layer that forms the wall of the blastocyst, thereby forming the first epithelium during embryogenesis. Moreover, the blastocyst is composed of 1-an inner cell mass (ICM) which will form all the tissues of the embryo's body, and 2-an outer layer composed of cells collectively called the trophoblast. The ICM of the blastocyst will form the embryoblast (which subsequently will give rise to the embryo itself) and the fetus, while the trophoblast will form all of the supporting tissues (i.e., amniotic sac, placenta, and umbilical cord). In humans, the blastocyst is the developmental stage of the embryo on day 5 after fertilization.
Plz help me well mark brainliest if correct!!
Answers
Answer:
A
Explanation:
it causes temperatures to rise
Answer:
the answer is all of the above
Explanation:
these are all consequences of climate change
How did Mendel solve the problem of always observing the same traits in his experiments?
Answers
disturbance destroying an area through the climax of ecological succession
Answers
Answer:
hope this helps
secondary succession
Explanation:
Large, low intensity disturbances, such as plowing in conventional agriculture, result in moderate amounts of succession, where species can survive in the soil and quickly recolonize areas after a disturbance. This type of succession is often called secondary succession
Can someone tell me if this is correct I need help with the percentage
Answers
Answer:
Hand = 75%
No hand = 25%
Explanation:
It's the same thing as last time. Since 3 of them are heterozygous and have 1 dominant allele, they have the dominant trait. And since one of them only has recessive alleles then it should have the recessive traits.
So the hand should have 75% and no hand has 25%.
( I saw someone else just post a link so I answered it in that question box, but it got deleted so i'm just writing it out here ig)
There is great diversity in the ways different species of microbes
obtain energy for metabolic functions, and
obtain carbon for building the macromolecules of life.
Fill in the chart to indicate how these characteristics are used to describe the nutritional
type or nutritional classification of organisms. (Refer also to Table 27.1 in Biology, 7th
edition.)
Answers
Answer:
please insert the chart or table 27.1
Please help I’ll mark you as brainliest if correct!
Answers
Answer:
C It belongs to the domain Eukarya
Explanation:
The cell has a nucleus and other membrane-bound organelles, unlike a prokaryote (bacteria and archea) would. Prokaryotes lack a nucleus and other membrane-bound organelles.
Prokaryotic cell is in the image
What is Climate Change?
Explain your answer.
Answers
What is Climate Change?
Climate change is a change in the usual weather found in a place.
How it helps us:
Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures. ... We can also see which regions are most likely to be affected by extreme weather, or which wildlife species are threatened by climate change.
How it works:
As the earth's atmosphere heats up, it collects, retains, and drops more water, changing weather patterns and making wet areas wetter and dry areas drier. Higher temperatures worsen and increase the frequency of many types of disasters, including storms, floods, heat waves, and droughts.
How it affects us:
Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats.
g Neuron A and neuron B interact with neuron C. Neuron A will produce an IPSP of -2mV in neuron C; neuron B produce an EPSP of 3mV in neuron C. The resting membrane potential is -70mV and the threshold is -50mV. Neuron A fires 6 times rapidly at the same time that neuron B fires 4 times rapidly. What is the resulting membrane potential in neuron C
Answers
Answer:
-70 mV
Explanation:
Given that Neuron A and Neuron B interact with Neuron C
Neuron A produces ; - 2mV of IPSP and fires 6 times
Neuron B produces ; 3mV of EPSP and fires 4 times
Resting potential = - 70mV
threshold = - 50mV
The resulting membrane potential in neuron C
= -70 + 6(-2) + 4(3)
= -70 - 12 + 12 = -70 mV
An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the rhythm of heart contractions the speed of blood flow through the blood vessels the amount of oxygen in the blood as it leaves the heart
Answers
Answer:
the rhythm of heart contractions.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
An electrocardiogram (ECG) provides information about the rhythm of heart contractions.
Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
¿Qué son los hongos?
Answers
Answer:
Los hongos son microorganismos eucariontes, tanto uni como pluricelulares-heterótrofos.
A diet that is mainly based on unrefined whole grain, fruits, vegetables, other plant products, though may contain small amounts of animal-derived foods,
can be called all of these except for which?
Select one:
a. Prudent diet
b. Healthy diet
C. Plant-based diet
D.Western diet
Answers
Answer:
Healthy diet
Explanation:
all of those have vitamins and they provide us energy
Answer:
b. healthy diet
Explanation:
Because vegetables , fruits and other plant products are vitamins.
what are the interactions between atoms that are hydrolyzed by fungi to release nitrogen from these molecules?
Answers
What advantage does a reliable web page have over published textbooks and
encyclopedias?
A) It is easily updated with the most recent information.
B) All web pages are peer reviewed.
C)Anyone can publish information on a web page.
D) Textbooks and encyclopedias are always more accurate than web pages.
Answers
Bkwcbkwfbicefebdwbdhdhd
Answer:
A
Explanation:
because it is easily updated with recent information
Pls help !!!Genetically modified plants have the potential to deter pests while not
harming bees. How?
A. Plants would be able to control the pesticide levels in their flowers,
keeping them below lethal levels for bees.
B. Plants would effectively become inedible to aphids.
C. Plants would produce a natural pesticide that does not harm bees.
D. Plants would produce a pheromone aphids use to warn of predators.
Answers
1) Define biodiversity in your own words:
2) Why is biodiversity important?
Answers
Answer:
Explanation:
1.) Biodiversity is variety in an ecosystem and the living things inside of it. It means all the different species and creatures that live on the planet.
2.) Biodiversity is important because it provides vital ecosystem functions such as soil fertilization, nutrient recycling, pest and disease regulation, erosion control, and crop and tree pollination. Each species ina n ecosystem has a role to play.