how did zebra mussels make it to the united states

Answers

Answer 1

Answer:

The zebra mussel is native to Eastern Europe and Western Russia. The species was unintentionally introduced into the United States' Great Lakes through the discharge of contaminated cargo ship ballast water.


Related Questions

(I need help) The pedigree chart below shows the individuals in a family who exhibit a certain trait. Based on the information in the chart, what are the chances that a second child born to couple 4–5 in the third generation will show the trait?


Key:
Circle—Female
Square—Male
Green—Exhibits trait"

A. 25 percent
B. 50 percent
C. 100 percent
D. 0 percent

Answers

Answer:

50% chance

Explanation:

I took the test you can trust me

The chances that a second child born will be 50%.

What is a pedigree chart?Pedigrees charts are used to examine the pattern of inheritance of a particular trait in a family. It shows relationships between family members and individuals which have certain genetic pathogenic variants, traits, and diseases within a family.

Therefore 50% chances are there for the second child (option b).

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Why is sustainable use of natural resources important?

Answers

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The use of resources should be sustainable because many non renewable resources like coal and petroleum can be exhausted if they are over exploited.

Why is knowledge and skills important in animal care and breeding? Explain in 3 to 5 sentences.

Answers

Answer:

to be thorough and pay attention to detail.

the ability to use your initiative.

to be flexible and open to change.

patience and the ability to remain calm in stressful situations.

the ability to work well with others.

the ability to accept criticism and work well under pressure.

To be successful as an animal breeder, you should have knowledge of the animal breeding process

a passion for animal breeding,

and knowledge of the potential risks of animal breeding.

Ultimately, a top-notch animal breeder should be an effective communicator, have good organizational skills, and be physically fit.

..If two solutions are isotonic to each other, then...

Answers

Answer:

They have the same concentration.

Explanation:

Isotonic, by definition, means that the two solutions are of equal concentration

Which of the following is the central issue underlying a problem that needs to be addressed

Answers

Answer:

you didnt list the options

Explanation:

This question is about the nervous system.
Describe the function of receptors in the skin.

Answers

Answer:

The skin possesses many sensory receptors in the epidermis, dermis, and hypodermis, which allows for discrimination of touch such as pressure differences (light vs. deep). Other qualities of the external world assessed by skin sensory receptors includes temperature, pain, and itch.

Explanation:

Answer:

What is the function of the receptors in the skin?

The skin possesses many sensory receptors in the epidermis, dermis, and hypodermis, which allows for discrimination of touch such as pressure differences (light vs. deep). Other qualities of the external world assessed by skin sensory receptors includes temperature, pain, and itch.

hope this helped

Explanation:

insects
APPLY Identify the biotic and abiotic components of the taiga ecosystem shown here. Can
you list a few more biotic and abiotic components that might be a part of this ecosystem?
plants
sunlight
elk
air
snow
abiotic
biotic
ha

Answers

Answer:

Is there more to this question I actually might be able to help

Explanation:

plants use the ____________ to make organic molecules.

Answers

The answer is light-independent reactions.

Can someone pls help me with this 2 questions!!

Answers

Answer:

water contracts and ice sinks

Answer:

For #2, water expands when it freezes, therefore it floats!

Explanation:

Water first condenses when it freezes until it reaches about 4 degrees Celsius, where it then slowly expands by about 9%. It also floats! You can observe this yourself by placing ice into a glass full of water.

Ice floats because it is less dense than the water below.


Which organelle is labeled i?
animal cell

Answers

Answer:

I believe the line is pointing to the nucleus, which is the green ball in the center of the cell

Explanation:

Explain why roots are not needed in marine algae?

Answers

Because they lack vascular system !

how to find percentage change in mass
and how to find change in mass if you're only given the mass before and mass after? ​

Answers

Answer:

Mass Difference= Final Mass- Initial Mass

To find the “Percent Change in Mass,” divide the “Mass Difference” by the “Initial Mass.”

Explanation:

Which organisms are heterotrophs?
photosynthesizers
producers
consumers
plants

Answers

Answer:

consumers

Explanation:

Heterotrophs don't make their food.

Answer:

it's C

Explanation:

got 100 on edge

Some metamorphic rocks experience extreme pressure and form layered bands or are said to be _______________________, while others without bands are said to be ____________________

Answers

Answer:

Some metamorphic rocks experience extreme pressure and form layered bands or are said to be gneissic foliation, while others without bands are said to be non-layered

which unit of geologic time began 65.5 million years ago and continues to the present?

Answers

The Cenozoic Era

I hope that helped :)

which statement best explains the orientation of the phospholipid molecules in this model?

Answers

Answer:

B.) The hydrophilic phosphate groups of the phospholipid molecules are attracted to the aqueous internal and external environments.

Explanation:

Hope This Helps! :)

describe a mature community. how does a mature community develop?

DUE IN 30 MINUTES HELP

Answers

Answer: simply has organisms*living things) that are well adapted to live together in the same area over time.

males are more often affected by x-linked traits than are females because ________.

Answers

Answer:

A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.

Explanation:

Hope this helps you a lot!

watson and crick were the first to suggest that dna is

Answers

Answer:

they suggested that DNA could make exact copies of itself

Explanation:

The two had shown that in DNA, form is function: the double-stranded molecule could both produce exact copies of itself and carry genetic instructions.Watson and Crick developed their ideas about genetic replication in a second article in Nature.

what is the organ responsible for the production of bile

Answers

Answer:

Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract.

Explanation:

Answer:

the organ producing bile is pancreas

2. What muscle (with two heads) allows you to flex your arm?

Answers

Answer:

Answer is Biceps brachi.

Answer:

Biceps Brachii

Explanation:

a typical eukaryotic cell has enough available atp to meet its needs for about 30 seconds. what is likely to happen to an individual when they exhaust their atp supply?

Answers

Eukaryotic cells rely on the molecular energy of ATP to sustain all of the reactions necessary to maintain life, in the absence of ATP, these reactions would come to a halt, and the cell would inevitably die.

ATP is a molecular compound that provides the energy needed by most cells to survive. ATP represents Adenosine triphosphate, which is an organic compound that provides energy to drive the essential metabolic reactions of living cells, such as:

Muscle contractionsNerve impulsesChemical synthesisNutrient absorbtion

In the situation in which a cell was to run out of ATP, these reactions would stop, given that they require ATP to function. This means that the cell would not be able to send or receive nerve signals, absorb the nutrients it needs, or even create necessary compounds such as proteins. The stoppage of these functions would lead to the death of the cell.

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Which of the following statements is true?

Answers

The answer is c.
RNA is single stranded


This is the answer because DNA is double stranded

DNA does not contain uracil

RNA does not contain deoxyribose sugar
hope this helps!!

Plz if I am right put a brainliest

Answer:

The First one, second and forth are false

and the 3 one is true

Explanation:

The DNA is doble stranded in a double helix structure. There are 5 nucleobases (adenine (A), cytosine (C), guanine (G), thymine (T), and uracil(U)), only the first 4 are present in the DNA whilist the U substitutes the T in RNA.

The DNA has deoxyribose sugar while RNA has ribose sugar, that's what gives the doble stranded and single stranded form respectively.

Sulfur dioxide _____.
A.) creates a reddish-brown haze in the sky
B.) is a secondary air pollutant
C.) has an irritating odor and is colorless
D.) is relatively harmless to the environment
Answer is C

Answers

Answer:

C.) has an irritating odor and is colorless

Explanation:

Sulfur dioxide is a chemical compound that's very toxic, non-flammable, colorless, and has a pungent odor. It's chemical formula is [tex]SO_2[/tex].

when did anton van leeuwenhoek invent the microscope

Answers

Answer:

1666

Explanation:

which statement concerning ATP and activity within the cell is correct?

Answers

ATP stands for Adenosine Di Phosphate.ATP is known as power currency of cell It's found in MitochondriaMitochondria is known as power house of cell.

Changes in a population over time is due to what

Answers

Answer:

Due to different circumstances.

like marriage which creates increase in population

the connective tissue covering around a fascicle is the

Answers

Answer:

a layer of connective tissue called the perimysium.

Explanation:

????????????????????

Answers

Answer:

That would be the sun, because of its gravitational pull its what pulled the other planets closer, then making our solar system. However, the sun was formed after the solar nebula, but thats not an option, so the next thing made was the sun. I hope this helps you! :D

Answer:

Answer is the sun

Explanation:

hope it helps u❤

how is the information contained in a signaling molecule received by a cell?

Answers

Answer: Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm.

Explanation: I found this answer on quizlet

Answer:

How is the information contained in a signaling molecule received by a cell? Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm

Explanation:

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