Which group in an ecosystem performs photosynthesis ?

I think the answer is A, chromosome

Answer:

The correct answer is option A.

Explanation:

A chromosome is a DNA molecule that carries all the genetic material of an individual. Most eukaryotic chromosomes consists of packaging proteins which, assisted by chaperone proteins. Which is bind to DNA molecule and condensed it to prevent it from becoming tangled.

In chromosomes DNA tightly coiled around proteins called histones that support chromosome structure.

Thus, the correct answer is option A.

Answer:

the answer is a

Explanation:

Though heat benefits the organism in the form of warmth, it does not benefit the environment in any way

a light for example provides light so you can see, but the heat produced as a result has no beneficial purpose

In life processes within all organisms, energy is obtained and utilized, but some is invariably lost to the environment, predominantly as heat energy. This is explained by the second law of thermodynamics, which asserts that all energy transfers or transformations are never fully efficient.

All organisms utilize energy for their metabolic activities, and during this process, some energy is inevitably lost into the environment. The second law of thermodynamics justifies why this energy dissipation happens. This principle underscores that not all energy transfers and transformations are completely efficient; some amount of energy is lost in a form that is typically unusable, mostly as heat energy.

To illustrate, during cellular metabolic reactions, some energy is lost as heat energy because of the conversion and usage of chemical energy in food. This phenomenon is essential for warm-blooded creatures, as the heat energy assists in maintaining our body temperature.

The release of energy into the environment can occur in several ways, such as through work done or as a chemical, but a significant portion is usually lost in the form of heat due to biochemical reactions. Accordingly, with respect to your question, the option 'a. lost to environment I (in) form of heat' would be the most accurate.

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Do you mean responding to stimuli? If so,when a stimulant is sensed by an organism whether by touch,smell,e.t.c. it causes the organism to react to the stimulant. For example,you eat a food which you think is tasty but when you eat is actually bitter. You may spontaneously spit out the food.

I hope this helps.

Answer: False

Explanation:

Population density is a phenomena which describes the number the individuals of the population of a species residing in a particular area when measured in a particular period of time. The population density is influenced by the birth, death, emigration and immigration.

The number of births will increase the members in the population but the number of deaths will decrease the members in the population of a species.  According to the given situation, high birth to death ratio will lead to large population as the effect of death will be nullify by the increase in birth.

Therefore, the situation, A high birth to death ratio leads to smaller populations. will be false.

False. A high birth to death ratio actually leads to larger populations, not smaller ones.

The birth to death ratio, also known as the crude birth rate and crude death rate, represents the number of live births and deaths in a population per 1,000 individuals per year.

When the birth rate exceeds the death rate, it means that more individuals are being born than are dying in a given population. This results in a net population increase as the number of births contributes to population growth. The higher the birth to death ratio, the faster the population will grow over time.

Conversely, if the death rate exceeds the birth rate, it leads to a declining population as the number of deaths reduces the overall population size. In this scenario, the population experiences negative growth.

It is essential to consider factors like immigration and emigration (net migration) to fully understand population dynamics. When birth rates exceed death rates, and there is also net migration into a population, the growth can be even more significant.

In summary, a high birth to death ratio indicates population growth, not population decline. Factors that contribute to a high birth to death ratio can include factors like high fertility rates, improved healthcare, and overall better living conditions that reduce mortality rates, leading to a population increase.

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when an animal has a simple structure of only one cell, they get their nutrients  from their environment. when animals have a more complex structure, you and infer that they are multicellular and they have a specialized way of breaking down their food. thus, meaning they can be herbivores, omnivores, or carnivores.

You can look at their anatomical structures to see what structures they use to digest said food. For instance, if you were to look at a skeleton and saw that the animal had strong, flat-topped teeth, one would assume they are plants because those strong molars are needed to chew the tissue of plants.

growth and change is one of them

The process of changing reaction rates is called chemical kinetics.

Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.

Moreover, chemical kinetics tell us the speed at which chemical species transform into new substances by breaking and reforming their molecular bonds.

Hence, chemical kinetics is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.

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It is called a Dosimeter. Hope this helps.

The badge that should be worn at all times during radiation exposure is called a dosimeter. These devices measure ionizing radiation to determine personal exposure levels.  Option B is correct .

A dosimeter measures ionizing radiation to determine personal radiation exposure. These devices include various types, such as film badge dosimeters, which use photographic emulsions to measure exposure, and more advanced types like thermoluminescent dosimeters.

Types of Dosimeters:

Complete question :

What is the name of the badge that should be worn at all times of radiation exposure?

A. Doppler

B. Dosimeter

C. Tonometer

D. Osscillometric

They built a vast network of roads, bridges, and tunnels

the purpose of this is to establish a route that the incas can use to build a relationship with other nations, either for economic or diplomatic purposes

They imposed their language and religion on conquered peoples.

By doing this, they are plannig to spread their culture and influence to their conquests and make absorbed them into a part of their population. (which would increase their millitary reserve)

It’s the second and third one

The number of birds in each flock is:

Flock X: 30 birds

Flock Y: 30 birds

Flock Z: 30 birds

The text in the image instructs you to:

Divide each flock's total pieces of food by 300, the total number of pieces of food eaten.

This will give you the proportion of food eaten by each flock.

Multiply the food percentage for each flock by the total number of birds (30).

This will give you the number of birds in each flock.

The table in the image shows the following information:

Flock X: 32 pieces of food eaten, representing 100% of the food.

Flock Y: 180 pieces of food eaten, representing 100% of the food.

Flock Z: 88 pieces of food eaten, representing 100% of the food.

Since the food percentage for each flock is already 100%, you don't need to perform any additional calculations.

Therefore, the number of birds in each flock is:

Flock X: 30 birds

Flock Y: 30 birds

Flock Z: 30 birds

Answer:

Find the correct matching.

Explanation:

The animal tisuses such as muscle tissue, nervous tissue, connective tissue and epithelial tissue.  The function of each tissue is correctly matched and given as an attachemnt.

In the Arctic marine ecosystem, polar bears play a vital role. With polar bears gone, the ecosystem will be affected negatively and have a bad influence on other organisms.

Polar bears are vital components of the Arctic ecosystem, but they face a severe threat due to global warming.

The melting of sea ice reduces their ability to hunt seals, which are their primary source of food. The white fur of a polar bear is an adaptation that helps them blend in with their snowy environment, allowing them to approach prey undetected, a trait crucial for their survival in the Arctic biome.

Climate impacts like warming oceans are causing the sea ice to break up earlier, which endangers polar bear populations by decreasing their access to food and increasing the likelihood of cubs not reaching adulthood. The loss of polar bears would not only be a tragedy in itself but would also be indicative of the broader ecological imbalances affecting the Arctic region, which could have cascading effects on global biodiversity.

As the ice continues to melt, polar bears are forced to travel longer distances, sometimes resulting in drowning or inland migration in search of sustenance. Their overall population has declined by twenty percent in the past ten years, highlighting the urgency with which we need to address climate change to protect them and their habitat.

I'm not sure what the picture is, but the answer would most likely be the herbivore eating the grass. The reason this is true is because primary consumers are the consumers that gain their energy by eating plants like grass and wild flowers. Examples of Primary consumers are deer, elk, cows, and monkeys. It's obvious which animals are herbivores by looking at the shape of their teeth. They are flat since they are not tearing any sort of flesh.

This is accurate because the majority of consumers get their energy from eating plants like grass and wild flowers. Deer, elk, cows, and monkeys are some examples of primary consumers.

It is easy to tell whether an animal is a herbivore or not by the shape of its teeth. They are flat because they aren't tearing any kind of skin.

A food web is made up of all the food networks in a particular environment. Each individual organism in an ecosystem is a component of various food chains.

Energy and nutrients can travel through the ecosystem along several food chains. All the interconnected and overlapping food systems in an ecosystem are combined to form a food web.

Therefore, This is accurate because the majority of consumers get their energy from eating plants like grass and wild flowers. Deer, elk, cows, and monkeys are some examples of primary consumers.

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sand dunes and loess deposits

Two features that form through wind deposition are sand dunes and loess deposits.

What are sand dunes?

What are Loess deposits?

Therefore, both sand dunes and loess deposits are examples of landforms shaped by wind deposition processes.

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CGA CT complementary DNA will be GCT GA.

DNA is made up of four bases: adenine (A), thymine (T), guanine (G), and cytosine (C), according to the Watson-Crick base pairing, which is the foundation for the helical structure of double-stranded DNA.

Complementary base pairing is described as the phenomenon in which guanine always forms hydrogen bonds with cytosine and adenine always forms hydrogen bonds with thymine in DNA.

Base pairing of purine and pyrimidine in either GC or AT.

Base pairs are frequently used to determine the size of a single gene within a DNA molecule. The total number of base pairs is equal to the number of nucleotides in one of the strands.

Thus, we can conclude that option B is correct.

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The Calvin cycle

chemical reactions that take place in chloroplasts during photosynthesis

Some plants such as cacti can prepare materials for photosynthesis during the night by a temporary carbon fixation and storage process. This is due to having the ability to open the stomata at this time, and conserve water due to cooler temperatures at night in order to tolerate the heat in the day.

Answer:

Glycolysis is the process that receives a supply of NAD+ ions from the fermentation.

Explanation:

When cells need energy but there is no oxygen for aerobic respiration than anaerobic respiration takes place.

Glycolysis is a universal process that provides energy in the form of ATP molecules. Glycolysis requires two molecules of NAD+, which are reduced to NADH during glycolysis. Thus, the regeneration of NAD+ is necessary as if NAD+ is absent, glycolysis cannot be able to continue.  

During anaerobic respiration (respiration in the absence of oxygen), fermentation takes place to regenerate NAD+ used in the process of glycolysis.

Answer:

this is correct on plato

Explanation:

1. Two examples of genetic disorders are CYSTIC FIBROSIS AND SICKLE CELL ANEMIA.

CYSTIC FIBROSIS

Cystic fibrosis is typically inherited when a defect occur in the CFTR gene of an individual. The CFTR gene is responsible for production of a protein that regulates the movement of water and salts out of the body cells. This gene does not perform optimally in people who have cystic fibrosis and this leads to the production of thick, sticky mucus and extremely salty sweat. Individuals who have this disease usually inherit two copies of the defective gene, one from the father and the other one from the mother.

2. SICKLE CELL ANEMIA

Sickle cell anemia is a genetic disorder of the blood, which is cause by inheritance of two copies of abnormal hemoglobin from parents. The hemoglobin is responsible for movement of oxygen all through the human circulatory system. The abnormal hemoglobin causes defective red blood cells, which can not move oxygen around efficiently. Thus, individuals with this disease do not usually get enough oxygen in their blood, this leads to fatigue and chronic pains plus several other negative medical conditions.

I think that it is D, not 100% tho

Answer:

D. The moths display an innate response to an external stimulus

Explanation:

A stimulus is any change in internal or external conditions of organisms to which they respond. Here, bright light serves as external stimulus to which the moth species respond by flying towards it. This behaviour of moth species to fly towards bright light is present in them since birth, that is, it is an innate response.

Answer:

Bacteria resistant to the antibiotics

Explanation:

Overuse of antibiotics has been proven to increase the mutation rates of bacteria population. The increased mutation increase the chances of developing a strain of bacteria that is resistant to the antibiotic. This eventually renders the antibiotic ineffective  hence opening up risk for a health epidemic catastrophe.

The overuse of antibiotics will most likely influence the natural selection of antibiotic-resistant bacteria. These bacteria evolve mechanisms that protect them from the effects of antibiotics, making standard treatments for bacterial infections less effective.

Antibiotics are used to treat bacterial infections by targeting specific parts of bacterial cells, which can lead to the death or inhibition of these cells without harming human cells. However, when antibiotics are overused – in humans or in livestock such as chickens – it can lead to the natural selection of bacteria that have acquired or mutated genes granting them resistance to these drugs. This process is similar to the evolution of pesticide resistance; only the individuals with genes conferring resistance survive and reproduce. Over time, a higher proportion of bacteria in the population can withstand the antibiotics originally designed to kill them. This is a major concern in public health and animal husbandry because it can lead to the spread of antibiotic-resistant infections, which are harder to treat and manage.

D I thinkkkkkkkkkkk.

The above statement is True

Sweat glands, fur, and feathers are found on an endotherm.

Answer:

TRUEEE

Explanation:

Answer:

Option A, microevolution and macroevolution

Explanation:

Scientist have categorized evolution base on the time scale  into following two categories

a) Macroevolution – These are the processes which take a long time to occur such as formation of a new species, extinction of any rare species etc, Also it affects a large mass of population or the entire population

b) Microevolution – In this,  the processes of change take a short time and usually they impact only a certain set of species for a shorter time period.  

Thus, option A is correct.

Answer:

A. Microevolution and Macroevolution

Explanation:

Scientists break evolution down into 2 parts: Micro and Macro evolution.

- Microevolution is evolution in a community, and it is very slow and gradual. For example, wolves overtime evolved into dogs, and over time, mosquitos became resistant to chemicals set out to kill them.

- Macroevolution is the type of evolution that refers to long, large changes in evolution over long periods of time and can lead to the creating of new species. For example, a dinosaur species evolves over time into a bird species.

Hope it helped!!

P.S Here is a picture of the difference between Micro and Macro that helped me when I was learning this!!

There’s no list or options but, an autotroph is something that makes its own food, like plants. :) AUTO means SELF!

i don't know what the options are but here's some info about autotrophs:

- autotrophs are plants or something that makes its own food

- they are a major food source for heterotrophs (consumers)

- they provide almost all energy for animals

hope this helps!!

➷ This is because the offspring receive a unique mixture of genes from each parent. This would mean that their genes are different to their parents, and their siblings - meaning there is variation.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

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most of offsprings produced by sexual reproduction show variations to their parents because of complete zygote develop by the fussion of male gamete and female sperm

Answer: United States of America

Explanation:

U.S.A. holds the worlds largest coal reserves

Answer:

United States Of America is the right answer

Explanation: good luck on your quiz have a awesome day

Photosynthesis is your answer :)))

The answer is purines

Cell division is when the genetic material in each chromosome splits off and becomes half of what it was.

Cell division is where this happens.

Hope this helps.

Area A is a section of an axon in a state of rest.

(The pink area)

When an axon is in a state of rest, there are more negative ions inside and more positive ions outside. No transmission takes place.

:D