You are maintaining a small population of fruit flies in the laboratory by transferring the flies to a new culture bottle after each generation. After several generations, you notice that the viability of the flies has decreased greatly. Recognizing that small population size is likely to be linked to decreased viability, the best way to reverse this trend is to cross your flies with flies from another lab.
A. True
B. False

Answers

Answer 1
This is so true hope this helps and can you mark this branliest

Related Questions

Which type of plant would NOT
live on land?
A. alga
B. fern
C. moss
D. roses

Answers

Answer:

A. AIga

Explanation:

Alga can live in freshwater lakes or in salt water oceans. Most green alga occur in fresh water, usually attached to rocks and wood.

The ferns are most commonly plants of shaded damp forests of both temperate and tropical zones. Some fern species grow equally well on soil and upon rocks others are confined strictly to rocky habitats.

Mosses are distributed throughout the world except in salt water and are commonly found in moist shady locations. They are best known for those species that carpet woodland and forest floors. Hence, mosses break down exposed substrata, releasing nutrients for the use of more complex plants that succeed them.

Roses typically grow in warm climates and flower in the summer months. However, some roses can grow in the hot tropical climate found in Florida, while others can grow in hardiness zones as low as 2, which have winter temperatures that drop as low as -50 degrees Fahrenheit.

Hence, A. Alga is the correct Answer.

What is a chronic disease?​

Answers

Answer:

A chronic condition is a human health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time. The term chronic is often applied when the course of the disease lasts for more than three months.

Explanation:

A chronic disease is a disease which last for a very long time even the whole life time. Such diseases have a bad effect on our health and may lead to poor health. A person does not recover completely after suffering from a chronic disease.Chronic diseases lead to loss of weight or fatigue.Examples: elephantiasis, diabetes, cancer, etc.

Hope you could get an idea from here.

Doubt clarification - use comment section.

NEED HELP ASAP!!
Please no links!!

Answers

Answer:b) The air at high altitudes are less dense, so its harder to breathe.

Explanation:

AS altitude increases, the air pressure drops. This reduces the amount of gas molecules in the air so the air becomes less dense compared to air closer to sea level.

B because it would be harder to breathe

Which of the following facts is the best example of molecular DNA evidence that
supports the Theory of Evolution?
A. Humans and chimpanzees share between 95% and 98.5% of their DNA.
B. The embryos of humans and chickens share similar features early in development.
C. Humans, penguins, alligators, and bats all share forelimbs with homologous structures.
D. In the fossil record, plants are found below reptile fossils. Im guessing that its A

Answers

Answer: A I think.

Explanation:

Cuz M O N K E S Are just like humans!

I think the answer is A since human beings evolved from an ape

why is the kidney bean shaped​

Answers

Answer:

Because the shape helps to keep the composition of blood in the body balanced to maintain good health.

Explanation:

The kidneys are two 'bean-shaped' organs in the lower back that serve to conserve water, maintain blood osmolarity, help in acid-base balance, and filter blood plasma. Urine is the fluid product produced by the kidneys which is excreted as waste from the body.

Answer:

The bean-shaped kidneys filter waste products out of the bloodstream and dispose of them by creating urine. Urine is made of these waste products dissolved in wate

Explanation:

Hope it helps


If a label indicated the presence of a radioactive isotope, you would know what
about the substance?

Answers

Answer:

Radioisotopes are radioactive isotopes of an element

Explanation: Radioactive isotopes are detected by: photographic film.

a cloud or bubble chamber.

a liquid scintillation detector.

a Geiger-Muller counter.

Answer:

we would know that the substance's atoms have an unstable combination of neutrons and protons or excess energy in their nucleus.

The lipid that makes up most of the lipids in our body is: Group of answer choices lecithin triglyceride phospholipid cholesterol

Answers

Answer:

triglyceride

Explanation:

the most common lipid.

Complete this sentence. Excess ____________ from human activities can cause harmful algal blooms (HABs), such as red tide, that produce toxic effects on aquatic species, marine mammals, and birds, as well as on the humans who eat them.

Nitrogen
Carbon
Salt
Heat

Answers

Answer:  Nitrogen

Explanation:

Harmful algal blooms can occur in lakes, reservoirs, rivers, ponds, bays and coastal waters, and the toxins they produce can be harmful to human health and aquatic life. Harmful algal blooms are mainly the result of a type of algae called cyanobacteria, also known as blue-green algae.

The answer is nitrogen, nitrogen helps algae grow and when it grows in excess it takes away the dissolved oxygen from the water which kills off fish, which puts more nitrogen in the water making algae grow even more until it snowballs and destroys the aforementioned ecosystem.

how does the human body return carbon to the atmosphere in the carbon cycle?

Answers

Answer:

There is a constant exchange of carbon from the abiotic and biotic environmental elements to the atmosphere. The breakdown of glucose is known as cellular respiration, and creates the byproduct carbon dioxide. This exhaled carbon dioxide is the method by which humans return carbon to the carbon cycle.

Explanation:

The Smiths went to dinner at Cheesecake Factory and their bill was $123.75 plus 7.5% sales tax. What is the total bill? Round to the nearest cent.

Answers

The total bill that was given to the Smiths at the Cheesecake factory was $133.03

An equation is an expression used to show the relationship between two or more numbers and variables.

Given that the Smiths bill was $123.75 plus 7.5% sales tax. Hence:

Total bill = $123.75 + Sales tax

Sales tax = 7.5% of bill = 0.075 * $123.75 = $9.28

Total bill = $123.75 + $9.28 = $133.03

The total bill that was given to the Smiths at the Cheesecake factory was $133.03

Find out more at: https://brainly.com/question/21105092

Which effect is most likely from a hurricane? damaged homes due to flooding forest fires due to lightning strikes cars sucked in due to a low-pressure center damaged personal property due to hail.

Answers

Answer:

A damaged homes due to flooding

Explanation:

Hurricanes cause heavy rains and strong winds. The heavy rain causes water to rise and therefore, homes are damaged by it.

A natural calamity in which a low pressure centered low atmospheric air movement along with strong winds and rain occurs is called a hurricane it is also known as a tropical cyclone.

The effect that most likely occurs due to a hurricane is:

Option A. Damaged houses due to flooding.

The effect can be explained as:

The hurricane can cause storm surge in which the levels of the sea rises than normal and causes high tides that can lead to floods.

The heavy rainfalls and typhoons caused by hurricanes lead to floods that damage homes.

Hail and forest fires due to lightning strikes are not caused by hurricanes and hence are not affected by the hurricane.

Therefore, hurricane causes flooding.

To learn more about the effects of hurricanes follow the link:

https://brainly.com/question/1999668

Which nucleic acid carries genetic information from the cell nucleus to the
ribosomes?
*
DNA
messenger RNA
transfer RNA

Answers

the kidneys filter blood

messenger RNA (mRNA)
messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).

the first three phases of the cell cycle are called

Answers

systhesis, the first growth. mitosis, the second growth. and cytokinesis

Do you agree that farming is good for the society? Why?

Answers

Answer:

Yes ,I do agree that farming is good for society

Explanation:

Why do I belive this because farming is apart of the circle of life,We plant,it grows it feed animals and animals feed us. And it keeps going on and on again.

According to the trichromatic theory of color vision, the eye has cones sensitive to colors associated with ___________. A. Red, green, and yellow B. Green, purple, and red C. Red, green, and blue D. Black, brown, and white Please select the best answer from the choices provided A B C D.

Answers

The eye has cones sensitive to colors associated with Red, green, and blue

according to the trichromatic theory of color vision.

The trichromatic theory of color vision states that the eyes can view only

three colors which are red, green and blue. This is made through the cones

which are light sensitive pigments in the eyes. The combination of their

wavelengths can be used to create other colors in the visible light spectrum.

The stated facts is the reason why Red, green, and blue is the most

appropriate choice in the list of options.

Read more on https://brainly.com/question/11705305

Answer:

C.

red, green, and blue

Explanation:

edge ; verified answer .

i do believe that i need help

Answers

Answer:

There are many different kinds of microscopes. A magnifying glass is a simple microscope. The term microscope commonly refers to a compound microscope. These Microsoft are called compound because they are made of several glass lenses in a tube. The total magnifying power of a microscope is the product of the magnifying power of the lens is in the ips and the magnifying power of the lens in the objective.. Most compound microscopes can magnify a specimen up to 400 times as real size. Microscope allow you to see fine details. Space is between objects that are closer together than 0.1 mm can be seen. The ability of a microscope to separate small distances is called resolving power. If the resolving power is not good the image will be blurred. When you look into the eye piece of microscope the circular area you see is the field of view when a ruler is placed across the opening of the stage the field of view can be measured in millimeters. Sharpening an image under high magnification used the Find adjustment knobs. The part of the microscope that holds the Microscope slide is called the stage.

What factors help blood move through veins?

Answers

The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.


Potassium nitrate forms potassium oxide,
nitrogen, and oxygen in certain fireworks.
4KNO3 → 26,0 + 2N2 + 502
This reaction is classified as a
A. combustion reaction.
B. decomposition reaction.
C. single-replacement reaction.
D. synthesis reaction.

Answers

Answer:

A. combustion reaction.

Explanation:

If you light a firework there's more than just a single reaction

Answer:

A. combustion reaction.

Explanation:

Fireworks explode, or combust in the air. Logicly I would classify this as an combustion reaction.

astronomy is the study of the ___ beyond earth.

astronomers are scientists who study:
. _____
.___ systems.
. ______
. galaxies.



Fill in all the blanks plssss.s

Answers

1 universe 2 stars 3 solar 3 planets

A mixture that has the same composition throughout is called a(n)

Answers

Answer:

Homogeneous Mixture

Explanation:

They are mixed

A drought is a long period of abnormally low precipitation. Suppose a drought occurred in Yellowstone National Park from 1916 to 1917. Predict how a graph line would appear for this time period. Explain your prediction in terms of the effect on resource availability.

Answers

Answer:

A drought is a long period of abnormally low precipitation. Suppose a drought occurred in Yellowstone National Park from 1916 to 1917. Predict how a graph line would appear for this time period. Explain your prediction in terms of the effect on resource availability.

Explanation: The graph line would have a downward trend because the amount of bison would start to decrease. Droughts heavily impact grassland ecosystems. A drought would increase the risk of a wildfire starting causing the bison to lose their habitat. The drought would also result in reduced plant growth. Therefore the bison would die off either because they were impacted by a wildfire, because they don’t have grass to eat etc.

Hope this answers your question! :)

what is the single greatest threat to biodiversity?

Answers

Answer:

Habitat loss

Explanation:

in fact it is the second largest threat to our existence on this planet next to Climate Change.

What causes black holes to form?

Answers

Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.) ... When the surface reaches the event horizon, time stands still, and the star can collapse no more - it is a frozen collapsing object.

What level of protein should a basketball player in the off-season trying to gain muscle mass consume

Answers

Answer: 2.5-3.o grams per body weight

Explanation:

how many chromosomes would be found in an allopolyploid plant if its parents had diploid numbers of 2 and 10, respectively?

Answers

Answer:

6

Explanation:

The allopolyploid off spring should have 6 chromosome the gametes produced for the diploid number 2 should be 1 and for 10 it should be 5 (n/2) the two gametesof both parents gametes should then fuse ( 1+5 ) giving us 6

or

gamete chromosomes =n÷2

gametes for diploid number 2

N= 2

2÷2 = I

gamete Chromosome = 1

gamete for diploid number 10

N=10

10÷2 =5

Allopolyploid= 5+1

=6

Are there other types of cells other than prokaryotic and eukaryotic cells?

Answers

Answer: No there is not im pretty sure there are only those two cell types.

Explanation:

Cells fall into one of two broad categories: prokaryotic and eukaryotic. The single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes (pro = before; karyon– = nucleus). Animal cells, plant cells, fungi, and protists are eukaryotes (eu = true).

Describe Hydrogen Bonding.


BEST ANSWER GETS BRAINLIEST

Answers

Hydrogen bonding is a interaction between two hydrogen atoms that is very essential for life on Earth. It is notoriously seen between water molecules, and it occurs when there is a slight disbalance in electrical charge between two Hydrogen atoms, and Oxygen atom that comprise water.  This slight imbalance makes the Oxygen slightly more electronegative, and the two hydrogen atoms slightly more electropostive.  The reason why water when spilled forms globules for this exact reasoning. The slightly positive charged hydrogen feels an electrostatic attraction to the Oxygen atom thus forming a strong bond. An interesting fact that comes from this electrical disbalance is that when salt is added to water, water is able to conduct electricity because of this disbalance in charge it can seperate the sodium chloride lattices into ions.

A solution has a pH of 2. Which best describes the solution?
…answer: a strong acid

Answers

Answer:

Yes

Explanation:

Lower pH a stronger acid.

A very concentrated acid

The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:

The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:
A. 2-3 ppm
B. 4-5 ppm
C. 6-7 ppm
D. 8-9 ppm

Answers

Dissolved oxygen can range form 0-18 mg/L, but most natural water systems require 5-6 mg/L to support a diverse aquatic population. 2. A dissolved oxygen level of 9-10 mg/L is considered very good. Generally, a higher dissolved oxygen reading indicates a better water quality.

What is shown in the diagram?
(Refer attachment for diagram) ​

Answers

The diagram shows a Circuit as a result of the combination of cells

present in it.

What is a Circuit?

This is referred to a path in which electric current flows through. It is

divided into the following which include:

Open circuitClosed circuit

The diagram above depicts a closed circuit as there is no breakage in the

flow of current.

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