If you find a blood worm, but no animals from group A or B, the pollution level would be?

Answers

Answer 1
If these animals are found in a river, it shows that the river is clean. However, some animals are adapted for surviving in polluted conditions and can survive in low oxygen concentrations. Examples are blood worms and sludge worms. The presence of these species indicates there is a high level of water pollution.

Related Questions

what comes out from capillaries

Answers

Answer: Blood moves very slowly through capillaries. As the blood moves through a capillary, nutrients, oxygen, and food leave the blood and enter the body cells. The blood also picks up wastes and carbon dioxide.

Explanation:

Help Me Please

Thanks

Answers

Answer:

different types or versions of a gene

Answer:

??

Explanation:

2. Which of the following BEST describes the effect that natural selection might have on a
species over time?

A. The fur color of a species will always change over time, because of natural selection.

B. Predator species will always increase due to natural selection, while prey species will
always die out.

C. Members of a species with traits that allow them to survive and reproduce in an
environment will increase in population, while those without those traits will die.

D. Bigger members of a species always have an advantage over smaller members. Therefore, over time, a species will eventually include larger organisms only.

Answers

Answer: i would say c

Explanation:

because if you think about it the animals have babies and they reproduce and there more species. check out my yt channel hailey azbell

A seed of a plant sticks to the fur of an animal as it walks by.
How has the animal most likely helped the plant?

Answers

The animal helped the whole plant species by moving the seed to a different area and spreading the population

Answer:

The animal has helped the plant get to another destination

After the production of eggs, these cells will directly travel to the *

Sperm duct

Testis

oviduct

egg cell

Answers

Answer:

Explanation:

ovaries

The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle.

Discuss the mechanisms of speciation

Answers

Answer:

There are four major variants of speciation: allopatric, peripatric, parapatric, and sympatric. Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

The key to one species diverging into two or more different species is establishing a barrier to gene flow. ... In this way, geographic isolation may lead to reproductive isolation and the formation of new species. Allopatric speciation is thought to be the main mechanism of speciation among most groups of organisms.

Name five things you can do to guarantee biodiversity

Answers

Answer:

1) Provide Wildlife Corridors and Connections Between Green Spaces. ...

2) Use Organic Maintenance Methods and Cut Back On Lawns. ...

3) Use a Native Plant Palette and Plant Appropriately. ...

4) Utilize Existing Green Space Connections. ...

5) Be Mindful of Non-Native Predators

According to a source

Explanation: :)

Answer:

what??????????????????????

write down the component of stainless
steel?

Answers

10.5% chromium

less than 1.2% carbon

Which of the following is not a primary concern when dealing with ethical issues related to modern day biotechnology? Group of answer choices The use of embryos for stem cell research. Protecting human subjects during clinical trials Using tissues that would have been disgarding after a surgical procedure. Informing patients of the possibility of the onset of genetic diseases in one's future.

Answers

Answer: Using tissues that would have been disgarding after surgical procedure

Explanation:

What are possible solutions of moving forward and what can be learned from 2021 Winter Climate Crisis?

Answers

Answer:

Some possible solutions include:

1- to replace oil and gas energies with renewable sources  

2- to replace fossil fuel-based transport systems with sustainable methods

3- to recycle material  

4- to prevent air pollution  

Explanation:

The replacement of fossil fuel energy sources with renewables energy sources (e.g., solar energy, wind energy, geothermal energy) can be considered the most important strategy to reduce (and even revert) the human effects on climate change. Moreover, sustainable transportation systems or 'green transport methods' (e.g., walking, cycling) don't consume fossil fuels, and therefore they have zero impact on the environment. Recycling materials can also be very useful in order to reduce greenhouse gases (e.g., CO2) by reducing the consumption of energy. Finally, methods to prevent air pollution (for example, by avoiding the burning of leaves and trash) can be applied in order to reduce CO2 emissions and thus minimize environmental impact.

my teacher thinks that everyone has crackers

Answers

Answer:

crackers? like ritz?

Explanation:

Answer:

its true my Thatcher salid the dame thing

Which sex chromosome determines the sex of a baby?
Explain your answer.​​

Answers

Answer:

Girls have two X chromosomes  and boys have chromosomes (XY).

Explanation:

Girls have two X chromosomes (XX), and boys have one X and one Y chromosome (XY). Whether a baby will be a boy or a girl is determined at the time of conception.

Which birds of the northern United States can probably best withstand extreme temperature changes?
A. Those that migrate to coastal regions in the fall
B. Those that migrate in the fall
C. Those that migrate in the spring
D. Those that remain in that region throughout the year

Answers

Answer:

D

Explanation:

i think that is the answer.

I believe the answer would be D

What are seismic waves an example of?

A. longitudinal waves
B. transverse waves
C. both transverse and longitudinal waves
D. neither transverse nor longitudinal waves

Answers

Answer:

longitudinal and transverse.

Explanation:

Examples of mechanical waves include ripples on the water surface (water waves), sound waves, and seismic waves. Mechanical waves can be classified into two categories based on the motion of the particles – longitudinal and transverse.

Which statement describes the function of the hormone called ADH? It tells the kidneys to reabsorb water. It tells the pancreas to secrete insulin. It tells the hypothalamus to make CRH. It tells the ovaries to make estrogen.

Answers

Answer: it tells the kidneys to reabsorb water.

Answer:

It tells the Kidneys to reabsorb water

Explanation:

An increased amount of ADH is released from the pituitary gland when you are thirsty.

How do offspring resulting from sexual reproduction differ from offspring resulting from asexual reproduction?

Answers

Answer:

THNAKS

Explanation:

One parent or two? That is the main difference between sexual and asexual reproduction. Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.

one person true survey

What is developmental psychology, and how do most psychologists address the
nature-nurture question?

Answers

Answer:

Developmental psychology is the study of human beings' changes over their lifespan. Most psychologists address the nature-nurture question by recognizing that both genes and upbringing play a role in who people become.

Explanation:

how mutation occurs on replicated DNA molecules​

Answers

Answer:

When strand slippage occurs during DNA replication, a DNA strand may loop out, resulting in the addition or deletion of a nucleotide on the newly-synthesized strand. ... But if this does not occur, a nucleotide that is added to the newly synthesized strand can become a permanent mutation.

Answer:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

I hope it's helpful!

4. Why is it most advantageous the sexual reproduction over asexual reproduction for
the evolution of species? Explain

Answers

Answer:

The offspring of sexually reproducing organisms are all genetically unique. Because of this, sexually reproducing organisms may have more successful survival of offspring in environments that change than asexually reproducing organisms, whose offspring are all genetically identical.

Why do you think matter changes its form based on temperature? In science explain

Answers

Answer:

Look down to the explanation

Explanation:

Because matter is extrinsic property ( meaning it could be changed based on the enviornment), things like pressure and temperature can affect the state and form of matter. "When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation)." So if the temperature is increased, it is the cause of thermal/heat energy, and this is what makes solids  into liquids, liquids to gasses, and gasses to plasma (including other additional states.

Anyways, I hope this helps, and sorry it's long!

How can you tell if an atom has a negative charge? What type of Ion is this?

Answers

ANSWER: If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is a positive ion.

If an atom has more electrons as compared to the proton then we can say that the atom has a negative charge.

What is an electric charge?

Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge.

   

You can have a positive or negative electric charge (commonly carried by protons and electrons respectively).

We may say that an atom has a negative charge if there are more electrons in it than there are protons.

The positively charged atom is known as the cation while on the other hand the negatively charged atom is known as the anion.

Thus, If an atom contains more electrons than protons, we may say that it has a negative charge.

Learn more about an electric charge from here, refer to the link;

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2. Consider a well-trained 130-pound female marathon runner, Jordan. Jordan has just loaded up on a carbohydrate meal and has the maximum amount of stored glycogen (6.8 grams of glycogen per pound of body weight). (10pts) a. How many grams of glycogen is Jordan storing in her body? Show your calculations

Answers

Answer:

884 grams of glycogen

Explanation:

Jordan's body weight = 130 pounds

Rate of storage of glycogen per pound of bodyweight = 6.8 grams

Total grams of glycogen that Jordan can store at maximum capacity:

  bodyweight x rate of storage

      = 130  x 6.8 grams

           = 884 grams

Hence, Jordan is storing 884 grams of glycogen in her body.

Which of these body systems transports glucose and other substances in the blood
to the cells of the body?

A) Circulatory system
B) Endocrine system
C) Digestive System
D) Reproductive system

Answers

A, because the heart pumps blood.

Answer:

answer is A

circulatory system

Explanation:

The Blood is a connective tissue of the circulatory system, transporting absorbed nutrients to cells like O2, glucose, and amino acids, and waste products from cells like CO2 and urea. It supports cellular metabolism by transporting synthesized macromolecules and waste products.

What is the overall charge of an atom? Why does it have this charge?

Answers

The overall charge of an atom is neutral because it has the same amount of protons and neutrons. They are positive and negative so they cancel each other out.
Yea What he said hope u passed have good day

whats the structure of the midbrain?

Answers

Answer:

There are three main parts of the midbrain - the colliculi, the tegmentum, and the cerebral peduncles. Of the 12 cranial nerves, two thread directly from the midbrain - the oculomotor and trochlear nerves, responsible for eye and eyelid movement.

Explanation:

I hope  this helps and pls mark me brainliest :)

There are three main parts of the midbrain - the colliculi, the tegmentum, and the cerebral peduncles. Of the 12 cranial nerves, two thread directly from the midbrain - the oculomotor and trochlear nerves, responsible for eye and eyelid movement.

Natural selection is the process by which biological traits either become more or less
apparent within a population. There are certain conditions which are the basis for natural
selection. Which of the following examples best represents the adaptation of a species to its
environment.

Answers

Answer:

where are these examples yall keep mentioning.

Explanation:

nonetheless, an example of an adaption is animals in cold environments growing fur to keep warm

Answer:

A species of crab is living and reproducing successfully near hot hydrothermal vents at the bottom of the Pacific Ocean, while other crab species are unable to survive there.

What phase is the cell in

Answers

Answer:

Anaphase

Explanation:

The first option on the lef

what is a rock and types of rocks

Answers

Dwayne Johnson, Also known a the Rock

Answer:

A rock is a solid made up of a bunch of diffrent minerals and the three major types of rocks are Metamorphic, Igneous, and Sedamentry some more common rocks are Shale, Marble, Bassalt, Slate, Gabbro, Sandstone, Limestone, Schist, Granite, and Conoglomerate. Hopefully that is useful have a wonderful day.

Which of the following will most likely result in the synthesis of a faulty protein?

Answers

Answer: C

Explanation:

The primary sequence ( which is the the polypeptide chain (all the amino acids)) dictates the folding of the protein, which is its secondary and tertiary strucutre. If there is a change in the base sequence code, there can be a change in the amino acid polypeptide chain that's produced in translation. This can lead to differences in folding, which could potentially inactivate the protein or lead to a synthesis of a faulty protein

A change in the order of a base sequence code is most likely result in the synthesis of a faulty protein. Thus, option C is correct.

What is primary sequence of amino acids?

The primary sequence ( which is the the polypeptide chain (all the amino acids)) dictates the folding of the protein, which is its secondary and tertiary strucutre. If there is a change in the base sequence code, there can be a change in the amino acid polypeptide chain that's produced in translation. This can lead to differences in folding, which could potentially inactivate the protein or lead to a synthesis of a faulty protein.

Cortisol is a steroid hormone that is released by the adrenal glands that are located on the kidney. Cortisol act on various body part. The elevated levels of these hormones stimulates the breakdown of the carbohydrate and fat to release the energy in urgent required condition or fast energy.

Therefore, A change in the order of a base sequence code is most likely result in the synthesis of a faulty protein. Thus, option C is correct.

Learn more about kidney on:

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Explain the difference between periods and groups and what each tells you about the atom

Answers

Answer:

Groups and periods are two ways of categorizing elements in the periodic table. Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.
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