What do contractile vacuoles do?
A. pump water out
B. overfill the cell with water
C. make acidic water
D. act as a water heater

Answers

Answer 1
The answer is A. Pump water out

Related Questions

The use of vaginal inserts of Lactobacillus to restore a healthy acidic environment is an example of

Answers

The use of vaginal inserts of Lactobacillus to restore a healthy acidic environment is an example of probiotics.

What are probiotics?

Probiotic consumption is the intentional consumption of microorganisms that are considered "good" for the body and relatively safe to ingest. This is often done in an attempt to restore a healthy balance of microflora in distinct parts of the body, such as the one mentioned in this question.

Therefore, we can confirm that because this includes the intentional incorporation of bacteria with the end goal of restoring a healthy environment in the body, it can be considered an example of probiotics.

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The sister chromatids separate and migrate to opposite poles at Anaphase II.

True
False

Answers

Answer:

True

Explanation:

The sister chromatids separate and migrate to opposite poles at Anaphase II.

True

Answer:

True

Explanation:

What are the two causes of variation?
A. Inherited factors and diet.
B. Inherited and genetic factors.
C. Inherited and environmental factors.
D. Habitat and diet.

Answers

Answer:

the answer is b

Explanation:

The two main causes of variation are inherited and genetic factors

The main idea of a text can also be called its conclusion.
False
True

Answers

The answer of the question is true
the answer is true btw.

List the two vascular tissues that transport materials throughout a plant AND describe what they each transport.

Answers

Answer:

xylem and phloem

Explanation:

Xylem is a vascular tissue that transports water to the leaves of the plant , while phloem tranporsts the food or the glucose made by the leaves to all parts of plant

PLEASE HELP
How can gene editing assist in disease prevention and treatment?

(SELECT ALL THAT APPLY.)

A) Large sections of chromosomes can be removed to prevent disease.

B) A new gene can be added to a person’s DNA.

C) Certain disease-causing genes can be disabled.

D) Genes can be added to change the color of someone’s eyes.

Answers

Answer:

It's answer C

Explanation:

Gene therapy replaces a faulty gene or adds a new gene in an attempt to cure disease or improve your body's ability to fight disease


13. Which human characteristic is the result of our genetic material?
a. values
b. gender
c. language
d. personality

Answers

Answer:

b

Explanation:

this is because the father has an XY chromosome while the mother has an XX chromosome which is then genetically shuffled to get the offspring

Gender is the result of our genetic material, this is due to the genetic shuffle caused by the father's XY chromosome and the mother's XX chromosome, which results in the progeny, hence option B is correct.

What are sex chromosomes?

The X and Y sex chromosomes are present in humans and the majority of other animals. Males have both X and a Y gene in their cells, whereas females have two X chromosomes.

Sperm cells have either an X or Y genome, whereas all egg cells have an X, because of this setup, the male decides the sex.

Since it occurs in people, the XX/XY sex-determination system is the most well-known. The majority of other animals and some insects have the XX/XY system.

Therefore, a chromosome variety known as a sex chromosome plays a role in determining sexual orientation.

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what's the definition of speciation

Answers

Answer:

The forming of a new species within the course of evolution.

Which are types of seed dispersal? (Select all that apply.)
explosion
water
wind
germination

Answers

Answer:

wind , water , explosion

if this helpful give me a brainliest.....

Answer:

Wind, Water, and lastly explosion, because wind blows off the petals of a flower. Water can shoosh petals away, explosion can make petals blow everywhere.

Explanation:

What happens if food items with excessive moisture are placed directly into hot shortening?

Answers

The excess moisture ( water) in the food items boils up immediately and busts both shortening and water around.

Reaction between hot shortening and water

Shortening are known to be fats at room temperature and are usually used in the baking of cakes and bread.

When placed in the temperature that is high, it melts to become liquid.

When you pour a food item that contains excess moisture on hot shortening, the water comes in contact with a higher temperature than the shortening's boiling temperature, so the water starts boiling immediately, and busts both shortening and water around.

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Derive observation from above picture​

Answers

Answer:

what picture. attach it.

Most of the energy we get from the sun comes to us as

ultraviolet waves.
visible light.
Xrays.
radio waves.

Answers

Answer: B- Visible Light!

Explanation: n/a!

It’s b have a good day

Which best compares DNA and RNA with regard to the process of protein production?

Answers

DNA transforms from a nucleic acid into protein while RNA remains a nucleic acid

what is the length of our year based upon

this is earth and space science, not biology

Answers

Our concept of a year is based on the earth's motion around the sun. The time from one fixed point, such as a solstice or equinox, to the next is called a tropical year. Its length is currently 365.2 days, but it varies.

An ecologist studies organisms in an estuary in Galveston Bay. The visual shows the acidic pH of different organisms.

The average pH level of the water in the estuary is 6.5. After a heavy
rainfall, the ecologist measures a 1.5 drop in pH. Based on the
information provided, how might the organisms in this estuary be
impacted by the change in pH?
A. Perch and trout populations will survive
B. Clams will be impacted but the remaining organisms will not
C. Perch will be the only fish to survive
D. Bass, clams, and crayfish will thrive

Answers

An ecologist studies organisms in an estuary in Galveston Bay. The visual shows the acidic pH of different organisms,Clams will be impacted but the remaining organisms will not.

What is Galveston Bay known for?

Other main ports utilizing the bay include the Port of Texas City and the Port of Galveston. With its various marine life, Galveston Bay also delivers more seafood than any estuary in the United States excluding the Chesapeake.

Thus, option "B" is correct,  Clams will be impacted but the remaining organisms will not.

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what is a denatured enzyme?

Answers

Answer:

A protein with an altered shape (from high temperatures) that prevents it from doing its job

Explanation:

PLEASE HELP!!!

What is the correct answer for the box?

Answers

The answer to your question is Corruption is exhibited in this scenario.
Have a great day

The type of bureaucratic inefficiency is exhibited in the project is corruption.

What is corruption?

A person or group in a position of prominence may engage in corruption, which is a kind of dishonesty or perhaps a criminal offense, in order to obtain improper benefits or exploit that position for one's own benefit. Bribery, influence peddling, and embezzlement are just a few of the behaviors that corruption may encompass. It may also involve actions that are permitted in many nations.

Political corruption is when a public official or other staff member uses their position for personal gain. Kleptocracies, oligarchies, narco-states, or mafia regimes are the ones where corruption is most prevalent. The type of bureaucratic inefficiency is exhibited in the project is corruption.

Therefore, the type of bureaucratic inefficiency is exhibited in the project is corruption.

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Outline seven soil pollutants and state two effects of each​ of this seven soil pollutants.

Answers

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Soil pollutants are substances which contaminates the soil. Soil pollutants are very harmful substances ,they makes the soil toxic . The presence of these substances in higher concentration directly affects the ecosystem, earth etc.

Here are some major soil pollutants :-

1) Industrial wastes

Industrial wastes are the common soil pollutants. The discharge of industrial waste in the soil makes it very toxic and directly affects the growth of plants (agriculture) .Industrial waste also affects the life of some organisms like earth worms which makes the soil more fertile.

2) Pesticides

Pesticides are the substances which are generally used to kill the pestes. It includes Insecticides, herbicides and fungicides. The higher concentration of pesticides in cropfield directly affects the human health and responsible for soil pollution, water pollution etc.

3) Hydrocarbons

Hydrocarbons are the substances which are composed of hydrogen and carbon. Only some hydrocarbons are responsible for soil pollution as they are very harmful for living organisms. for example the most harmful hydrocarbons is PAHs ( Polycyclic aromatic hydrocarbons) .PAHs in soil affects the growth of plants and it is indirectly responsible for the cancer in humans.

4) Metals

Most of the people don't know that the higher concentration of some metals makes the soil very toxic . The concentration of these metals in soil directly kills the human beings and other living organisms.

5) Non - biodegradable substances

Most people throw the trash in the soil even they know that soil can't degrade the non - biodegradable substances. When these non - biodegradable wastes eaten by street animals it directly affects the health of those animals and disturbs the ecosystem.

6) Human activities

Some people really don't care about the environment. They always do ,what they want to do without even thinking about its consequences on the environment. They throw Cigrattes in the soil, Drop alcohol in soil .These activities makes the soil toxic and the crops that are grown in contaminated soil directly affects the human health.

7) Acid rain

It is major reason for the contamination of soil. Some people thought that, It is the natural cause of soil pollution but that's not the reality. Humans are the one's who are responsible for acid rain. Contamination of these acids makes the soil very toxic that it kills the plants on the spot.

Answer:

See below.

Explanation:

1) Plastic / Glass:

● Non biodegradable substances & takes a long time to decompose.

● Harmful substances are released into the soil.

2) Acid rain:

● Changes the acid level of the soil.

● Causes harm to the plants, insects & ground water.

3) Pesticides / Insecticides / Artificial fertilisers:

● Alters the health of the soil.

● Causes harm to the plants & the organisms living in the soil.

4) Heavy metals (merculy, arsenic etc.)

● Causes toxic harm to plants & animals.

● Highly poisonous .

5) Industrial wastes:

● pH level of the soil can be altered.

● Makes ground water either too acidic or too basic.

6) Radon:

● Harms microorganisms .

● Can cause lung diseases.

7) Hydrocarbons:

● Affects soil health

● Affects the micoorganisms in the soil.

___________________

Hope it helps ⚜

Select the correct answer. What is the approximate solution to this equation? 19+ 2lnx = 25 A. 3 B.0.05 C. 20.09 D. 1.93 ​

Answers

Answer:

C. 20.09  ​

Explanation:

The example of an abiotic element in the environment is the

Answers

Answer:

[tex]I~am~beinggreat78~and~am~here~to~help~you.[/tex]

An example of an abiotic element is the air. We use the air, which carries oxygen everyday to breathe, but is the air living? No, air is not a living thing.

There is a forest fire. Which cycle will be affected the most? A. Carbon cycle. B. Nitrogen cycle. C. Water cycle d. Oxygen cycle

Answers

Answer:

oxygen cycle

Explanation:

due to lose of oxygen the air will be polluted


How can scientists use the fossil record to find evidence of relationships between different species?

Answers

Answer:

Fossils from different areas are different from the ones you might find today, they have had the marrow mostly washed out of them if they are old, and they can use fossil records to find the date between fossils as well.

Cedar waxwings are one species of bird that is adapted to
withstand our cold winters. Bird watchers in Barrie provide
cedar waxwings with seeds at birdfeeders during winter
months. wum
(a) Would the seeds alter the carrying capacity of the
ecosystem? Explain.
(b) Provide a hypothesis that explains why bird watchers have
noted an increase in the falcon population in recent years.

Answers

The process of adding or removing the food supply (seeds) in an ecosystem would alter its carrying capacity.

What do you mean by Carrying capacity?

Carrying capacity may be defined as the maximum number of individuals that can be supported by a habitat to live. Every habitat has a fixed carrying capacity.

When the winter period comes, it decreases the number of seeds of cedar waxwings. At this time seeds undergo to dormant stage due to the freezing temperature of the winter, hence they can not be reproduced at this point.

In spite of this, offering seeds to the bird feeders during winter can be adequate for the reduction in the food supply of these birds.

It can assist them with sufficient food resources which allows them to get through the winter season. Hence, increasing the carrying capacity for the cedar waxwings in the ecosystem.

Therefore, it is well described above.

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The example of bats hunting at night illustrates
A. how behavior minimizes competition
B. the role of bats in marine ecosystems
C. the similarities between bats and birds
D. why bats often disrupt the balance of ecosystems

Answers

Answer:

how behavior minimizes competition

Explanation:

Which pair of scientific fields would be most useful in understanding how and
why humans affect Earth?
O A. Geophysics and geography
O B. Meteorology and hydrology
O C. Physics and biology
O D. Anthropology and sociology

Answers

anthropology and sociology

What is artificial selection?

Answers

Answer:

D. when humans breed an animal for a certain trait

Explanation:

In order for something to be defined as artificial selection it requires human interference, D is the only answer where humans are mentioned; Therefore it's the correct answer and a example of artificial selection

Answer:

The answer to your question would be d

Explanation:

because artifical is humans picking what happens. and natural would be nature picking the traits

How does climate change affect ecosystems and the life in them. Give examples

Answers

Answer:

Climate change can alter where species live, how they interact, and the timing of biological events, which could basically transform current ecosystems and food webs. Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought. HOPE THIS HELPS :D

Explanation:

In which climate are bacteria most likely to colonize human skin surfaces: warm-humid, cool-humid, moderate-semiarid, warm arid?

Answers

Warm arid
I believe this is the answer

What is the nervous system made up of?
the spinal cord, sensory organs and blood vessels
the brain, spinal cord and the nerves
the brain and spinal cord
the nerves, sensory organs and brain

Answers

The nervous system is made up of three elements: the brain, the spinal cord, and the nerves that can be found in all the body.

What is the nervous system?

This is an important system found in animals that coordinates body movement, and controls important processes such as breathing.

What structures are part of this system?The brain: This is the most important organ of the nervous sytem as it acts as a processing center for movement, sensibility and organs' functions.The spinal cord: This structure transmits signals from the brain along the body.The nerves: They extend from the spinal cord are essential to have movement and sensitivy in all the body, for example, due to the nerves, animals have sensibility on their fingers.

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Why is behavior considered to be a mixture of both nature and nurture?

Answers

Answer:

behavior is considered the result of an interaction of genes and environment. For example, the development of intelligence depends on both the genetic influences on the brain and the environmental influences that affect learning in the child. Nature and nurture work together in behavior

Explanation:

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