1

The arctic fox inhabits northern areas of North America. The same arctic fox is shown in the drawing at different

times of the year.

July

What causes this change in fur color?

J Gene expression for fur color is regulated by temperature

G Gene expression for fur color is regulated by latitude.

H The arctic fox has two traits for fur color that are determined at birth.

F The alleles for fur color change as the arctic fox grows older."

The following are the differences of human and frog digestive systems:

1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.

2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.

3. Humans possess only a set of teeth while frogs possess two sets of teeth.

4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.

5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.

6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.

At a UV fluence of 3 J/m², cells that exhibit a mutation in the DNA repair genes show the relatively lowest rate of survival.

DNA repair genes are essential for the repair of DNA damage from various sources, including ultraviolet (UV) radiation. UV light can cause DNA lesions such as pyrimidine dimers in cells, which can lead to mutations if not repaired. DNA damage cannot be properly repaired by cells with mutations in DNA repair genes.

Therefore these cells have a reduced ability to repair UV-induced DNA lesions when exposed to UV radiation at a fluence of 3 J/m2, resulting in a higher rate of cell death than cells with complete DNA repair mechanisms or decreased survival.

Learn more about DNA repair, here:

https://brainly.com/question/32145935

#SPJ4

Answer:

In the nucleus of the cell, however prokaryotic organisms keep their DNA in the nucleolus

Explanation:

The different types of nerve cells and how they work together in the human body are as follows:1. Sensory neurons: Sensory neurons are the first stage in the nervous system's communication process. They get information from sensory organs such as the eyes, ears, skin, tongue, and nose, and transmit it to the brain or spinal cord.2. Motor neurons: These neurons are located in the spinal cord and send instructions to muscles throughout the body, causing them to contract.

3. Interneurons: They serve as the communication between sensory and motor neurons. They interpret the information collected by the sensory neurons and relay it to the motor neurons, which then cause the muscle to move. They work together to maintain the body's homeostasis. Homeostasis is a biological process that maintains a stable internal environment for the body.

The sensory neurons in the skin detect changes in the environment's temperature and relay this information to the brain, which then directs the body to take corrective action to maintain its temperature.2. Motor neurons: They are responsible for initiating muscle contractions.

These neurons are located in the spinal cord and send instructions to muscles throughout the body, causing them to contract. The function of motor neurons is best exemplified by the shivering reflex, which is a method of generating heat in the body. In response to cold temperatures, the motor neurons in the spinal cord are activated, causing the muscles to contract, producing heat.3. Interneurons: They serve as the communication between sensory and motor neurons. They interpret the information collected by the sensory neurons and relay it to the motor neurons, which then cause the muscle to move. The process of thermoregulation requires the cooperation of interneurons. These neurons integrate the signals from sensory neurons and produce a coordinated response. The interneurons are responsible for the thermoregulatory reflex, which is a system that maintains body temperature by integrating information from the skin's temperature receptors and activating the appropriate response.

learn more about Sensory neurons

https://brainly.com/question/30435793

#SPJ11

Plants invest significant energy in reproduction to ensure the survival and propagation of their species.

Reproduction is a fundamental process for the continuation of plant species. Here are some key reasons:

1. Species Survival: Reproduction allows plants to produce offspring, ensuring the survival of their species over time. By producing seeds, spores, or other reproductive structures, plants increase the chances of their genetic information being passed on to future generations.

2. Genetic Variation: The genetic information created in the reproductive process a lot of energy us consumed. This genetic diversity is essential for adapting to changing environmental conditions, combating diseases, and increasing the overall resilience of plant populations.

3. Dispersal: Plants invest energy in producing structures, such as fruits, cones, or winged seeds, that aid in the dispersal of their offspring. By dispersing to new areas, plants can colonize different habitats, reduce competition with parent plants, and find optimal conditions for growth and survival.

4. Reproductive Success: Successful reproduction leads to the establishment of new individuals, ensuring the continuation of a plant lineage.

5. Ecological Interactions: Plant reproduction often involves interactions with pollinators, such as bees, butterflies, birds, or wind.

To know more about plant reproduction, visit,

https://brainly.com/question/15492488

#SPJ4

The regulation of water flow through the xylem is done by transpiration pull and cohesion. The water is transported through the plant by the xylem.

Xylem tubes are long and hollow structures that extend throughout the plant body, and are mainly made up of dead cells. They transport water and minerals from the roots to the aerial parts of the plant.Water is drawn up the xylem by a combination of forces called transpiration pull and cohesion.

As water evaporates from the leaves into the atmosphere through stomata, a vacuum or negative pressure is generated within the xylem, which pulls water up from the roots. The water molecules within the xylem are held together by cohesion, allowing them to form a continuous column as they are pulled up the xylem. This process of water transport through the xylem is known as the transpiration stream.

To know more about cohesion visit :

https://brainly.com/question/33147581

#SPJ11

\(H^+\) ions are moving out of the cell by active transport. Option C.

Active transport is a form of cell transportation that requires the expedition of energy, usually in the form of ATP.

An example of active transport is ion transport across the cell membrane as depicted in the image. When materials are moved from the side of higher concentration to the side of lower concentration, the materials are moved along their concentration gradients.

When materials move from the side of a lower concentration to the side of a higher concentration, the materials are said to be moved against their concentration gradients.

From the image, one can see that  \(H^+\) ions are moving from the cytoplasm across the cell membrane to the external environment. It can also be seen that this movement of ions requires ATP. Thus, it can be concluded that \(H^+\) ions are moving out of the cell by active transport.

More on active transport can be found here: https://brainly.com/question/29759743

#SPJ1

Since a pump carrier protein is carrying H+ from the lower-concentration side to the higher-concentration side using ATP, we can assume the true statement about the diagram is C) H+ ions are moving out of the cell by active transport.

Active transport is a cellular transmembrane type of transport together with passive transport and simple diffusion.

Active transport acts against the electrochemical gradient, so it does need energy to transport substances. It carries molecules from a low-concentration side of the membrane to a high-concentration side.

The energy used comes from ATP (Na-K bomb) or the membrane's electric potential.

The transmembrane proteins involved in active transport are Carrier proteins.

In the exposed image you can see

This is active transport. Option C.

You can learn more about active transport at

https://brainly.com/question/29759743

#SPJ1

Esta teoría hace referencia al movimiento actual de las placas que sustentan los continentes y que se desplazan a lo largo de millones de años. En toda la historia geológica de la Tierra, los continentes no han estado siempre en la misma posición. Existe una serie de evidencias que veremos posteriormente que ayudaron a Wegener a refutar su teoría. El movimiento se debe a que continuamente está formándose nuevo material procedente del manto. Este material se crea en la corteza oceánica

The mRNa is read in the 5'-3'direction, whereas the anticodon is written in the 3'-5'direction in addition to the mRNA codons. 3' GUC 5' or 3' GUU 5', which codes for glutamie, is the complementary anticodeon for 5' CAG 3'.

An anticodon is a trinucleotide sequence that is complementary to a corresponding codon in a messenger RNA (mRNA) sequence and is found at one end of a transfer RNA (tRNA) molecule.
The tRNA is found in the first docking site of the ribosome. The anticodon of this tRNA is complementary to the initiation codon of the mRNA, where translation begins. The amino acid that corresponds to that codon is carried by the tRNA. The following mRNA codon is now visible in the ribosome's other docking site.

Simply retranscribe the RNA sequence; in other words, write out the complementary bases to determine the overall anti-codon sequence that will match a strand of mRNA. Using the mRNA sequence as a guide, the tRNA anti-codon sequence is A-A-T-C-G-C -U-U-A-C-G-A.

To know more about mRNA go through:-

https://brainly.com/question/12388408

#SPJ4

Answer:

Autorophs are living organisms that make their food through photosynthesis while heterotrophs are living organisms that can not make their own food, so they must eat it.

Explanation:

Hope it helps!

Answer: Autotrophs make their own food (plants some protists and some bacteria) and heterotrophs cannot make their own food they must obtain energy from outside sources (animals fungi and some bacteria)

Explanation:

Answer: What roses are the best flowers is a non-scientific question.

Explanation: What flower is better is determined by personal opinion. I might think the red roses are prettier and you might think the white ones are. Where all the other questions can be tested all equally and it is not an opinion.

Answer:

why are roses the best flowers

High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.

So the correct answer is: All of thees choices are correct.

Answer:  an ability to recover from or adjust easily to adversity or change

Explanation:meaning of the word resiliency in this context save the coral reefs is an ability to recover from or adjust easily to adversity or change

Answer:

east to west

it is hard because we have to take care of each and every tempreture

I only know no 2

According to the biological species concept, organisms belong to the same species if they can interbreed to produce viable, fertile offspring. Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.

Answer: sexual reproduction.

Explanation: In asexual reproduction there is no exchange of genetic characteristics due to the lack of fusion of gametes(haploid). Thus there is practically no variation in specie.

But in sexual reproduction there is exchange of genetic characteristics resulting from the fusion of haploid gametes hence there is variation and great diversity.

The failure resulting from incorrect procedures in an organization, leading to breakdowns in communication and the occurrence of missed or neglected tasks, is known as process failure.

Process failure refers to the breakdown or failure of established procedures within an organization, which consequently hampers effective communication and leads to tasks being overlooked or mishandled. It occurs when the established processes or workflows are flawed, inefficient, or ineffective in facilitating smooth operations and clear communication among employees.

When the wrong procedures are set up in an organization, it can create confusion, ambiguity, and barriers to effective communication. As a result, important information may not reach the intended recipients, tasks may be improperly executed or neglected, and overall productivity and efficiency may suffer. This breakdown in communication and workflow can have negative consequences on the organization's performance, customer satisfaction, and employee morale.

To mitigate process failure, organizations need to establish clear, streamlined, and efficient procedures that align with their goals and objectives. Regular evaluation and improvement of processes, along with effective communication channels and protocols, are essential in preventing process failure and maintaining a productive work environment.

Learn more about customer satisfaction here:

https://brainly.com/question/32389861

#SPJ11

The answer choice which best supports the idea that most attempts by scientists to create new chemical elements will fail is that: (D) scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success.

A chemical element can be defined as a pure substance that comprises atoms having the same atomic number (number of protons) in its nuclei and as such, it is the primary constituent of matter. Also, a common characteristics for all chemical elements found on the periodic table is mass and volume.

In Chemistry, some examples of a chemical element include the following:

In this scenario, we can reasonably infer and logically deduce that a statement which indicates that an attempt by scientists to create new chemical elements will fail is stating that "scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success." because an experiment to create new chemical elements must be tested and they all should have multiple successful results.

Read more on elements here: brainly.com/question/24373113

#SPJ1

Complete Question:

Which of the following answer choices BEST supports the idea that most attempts by scientists to create new elements will fail?

(A) Scientists have to create a target with a carefully chosen atom; this is a process that takes months.

(B) Scientists have to smash atoms together and get them to stick; a positive charge makes them repel each other.

(C) Scientists have to bombard particles with specific protons; specialized atoms combine with neutrons.

(D) Scientists have to repeat their experiments an enormous number of times; if it works once it's seen as a success

Answer:

I don't see the last image after the snake. Anyway, I would say C because the Snake would eat more Toads, so Snake population would increase.

Answer:Dendritic cells Explanation:

T- cells is not a antigen presenting cell.

Hence, the answer is T-cells.

To learn more about antigen presenting cells here

https://brainly.com/question/13588471

#SPJ2

Answer:

I think its b but I'm not sure

don't hate me if I'm wrong

The sunlight is abosorbed and weakened when it passes through the atmosphere, being also scatterred by the air and dust in the atmosphere with short wavelengths scatter more than longer wavelengths. Therefore, the radiation can go forward in part while some is blocked by the constituents of the atmosphere.

Incompatible blood types between a woman and her unborn child can result in HDN. The immune system recognises the baby's incompatible red blood cells as foreign and responds by producing proteins called antibodies to target and destroy them if they contact the mother during pregnancy, through the placenta, or at delivery.

First-time pregnancies and HDN are both possible?

Fetal anaemia in a first pregnancy is uncommon due to HDN, which typically develops during pregnancy and less frequently through a blood transfusion. With each succeeding impacted pregnancy, it does, however, have a tendency to worsen once it manifests.

What contributes to HDN the most frequently?

The most typical instance of HDN is when a Rh negative mother gives birth to a child with a Rh positive father.

To know more about HDN visit;

https://brainly.com/question/14552288

#SPJ4

Answer: CFCs

Explanation: The other options aren’t as relevant to air pollution.

Answer:

cfcs

Explanation:

Answer:

Cellular respiration requires the use of glucose which are located on the mitochondria.

Explanation: Hope this helps :)

1. Xylem - monocot

2. Scattered Vascular Bundles - monocot

3. Pith - monocot

4. Ringed organization of vascular bundles - eudicot

5. Cortex - both

6. Phloem - monocot

7. Secondary growth - eudicot

8. Ground tissue - both

9. Vascular bundles - both

Monocots and dicots varries in the following structures: leaves, stems, roots, and flowers. Monocots consists of one cotyledon or vein while dicots have two.