which best describes the function of the mitochondria ?​

Answer:

An electromagnet is a temporary magnet. It is made by winding a coil of insulated wire round a soft iron core. When a current is passed through the coil, the magnetic field produced by the current magnetises the soft iron core. The soft iron core loses all the magnetism when the current is switched off.

Explanation:

yes

Answer:

The magnetic field generated by the electromagnet only appears when there is an electrical current applied to it. The magnet field will disappear once the electrical current has left.

Answer:

What is the function of adrenaline?

Adrenaline triggers the body's fight-or-flight response. This reaction causes air passages to dilate to provide the muscles with the oxygen they need to either fight danger or flee. Adrenaline also triggers the blood vessels to contract to re-direct blood toward major muscle groups, including the heart and lungs. The body's ability to feel pain also decreases as a result of adrenaline, which is why you can continue running from or fighting danger even when injured. Adrenaline causes a noticeable increase in strength and performance, as well as heightened awareness, in stressful times. After the stress has subsided, adrenaline’s effect can last for up to an hour.

Explanation:

I think I helped

Answer:

Key actions of adrenaline include increasing the heart rate, increasing blood pressure, expanding the air passages of the lungs, enlarging the pupil in the eye (see photo), redistributing blood to the muscles and altering the body's metabolism, so as to maximise blood glucose levels (primarily for the brain).

Answer:

When you get your period, your uterine walls are shedding which  results in bleeding and cramps. When I was younger I had a joke that my uterus wanted revenge on me for not getting pregnant. And basically that's what it is

Explanation:

Answer:

When you get your period, your uterine walls are shedding which  results in bleeding and cramps. When I was younger I had a joke that my uterus wanted revenge on me for not getting pregnant. And basically that's what it is

Explanation:

Answer:

industrial pollution is density-independent

habitat is density-dependent food is also density-dependent because its availability varies depending on this factor a hurricane is abiotic and density-independent number of mates is density-dependent and hunting by humans is density-independent

Answer:The Microscope

Explanation:

Answer:

1. A-early prophase F late prophase

2. C

3. A (if consider prophase 1st) but D (if consider inter phase 1st)

4. centrioles

5. D

6.A, F, C, E, B, D

7. Animal- round in shape

8. D

9.Allows cells to reproduce

10.

Explanation:

Answer: B. nucleic acids.

Explanation: A sugar-phosphate backbone (alternating grey-dark grey) joins together nucleotides in a DNA sequence. The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.  

Answer:

Hi there your answer is B

Explanation:

There are a lot of functions to the digestive system like absorbing nutrients, get rid of waste but the main function is to process organic molecules so they can enter cells.

Hope this helped :)

Human Digestive System is a complex system made up of organs, tissues, and hormones. The primary function of the human digestive system is to break down and process food into nutrient molecules.

The correct answer is:

Option B. process organic molecules so they can enter cells

The functions of the human digestive system are:

Thus, the digestive system process the food and break it down into simpler forms, so it can be absorbed by the cells.

To know more about the human digestive system, refer to the following link:

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Answer:

"Natural selection" or "survival of the fittest" is the biggest driver of evolutionary change.

Answer:

Repairing ability and homeostasis causes the injured parts to return back to uninjured.

Explanation:

Due to repairing ability of levels of organization in the body helped the injured parts to return back uninjured. Yes, homeostasis that is present in and between cells help to return organ systems back to homeostasis or equilibrium state of the body. Our body has the ability to main homeostasis whenever some disturbance occur in the body. If this homeostasis not present our body, there will be no repairing of damaged occurs.

It should be noted that the repairing ability and homeostasis are vital as they cause the injured parts to return back to being uninjured.

Homeostasis simply means the process that living things use to maintain stability while they adjust to the conditions that are best for their survival.

The homeostasis that is present in and between cells is vital for returning systems back to the equilibrium state of the body. The body of an individual has the ability to maintain homeostasis whenever there is some disturbance that occurs in the body.

Read related link on:

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Answer:

Very dense particles settle faster than low-density particles.

Explanation:

Erosion is the process of destroying and destroying existing forms in relief.

Erosion is the destruction of the existing structural connections of the rock mass due to the action of exogenous forces and the change of its shape.

The term erosion in the elementary sense should mean changes in the surface layer of the soil relief, which occur as a result of rain, snow, frost, temperature differences, wind, and running water, or due to the work of anthropogenic factors.

Answer:

B

Explanation:

Answer:

products

Explanation:

reactants combine to produce products in a chemical reaction

Answer:

reactants is the answer

Answer:it’s B

Explanation:

No explanation needed

The given diagram describes that 2. Water molecules are too large to enter or leave the cell, so they remained where they were at the start of the investigation.

A cell is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.

The given diagram describes that 2. Water molecules are too large to enter or leave the cell, so they remained where they were at the start of the investigation.

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Answer:

2m

Explanation:

The closer an object is the more gravitional force there is

Answer:

The rate becomes ever more rapid in proportion to the growing total number or size.

Explanation:

Answer:Exponential growth may occur in environments where there are few individuals and plentiful resources, but when the number of individuals becomes large enough, resources will be depleted, slowing the growth rate. Eventually, the growth rate will plateau or level off.

Explanation:

Answer:

The Volga River is 3,530 km long.

Explanation:

J. The offspring inherits traits from the parents

Answer:

agcttgagt

Explanation:

DNA is a double helix molecule composed of two complementary DNA strands which are in turn composed of four different nucleotide bases: Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). In the DNA molecule, G and C are bound together as a base pair, while A and T are bound together as another base pair. This complementary base pairing structure means that both DNA strands are complementary to each other. In this case, since the sequence of one strand is "TCGAACTCA", the complementary DNA strand would have the sequence "AGCTTGAGT".

A macromolecule that is composed of only carbon, hydrogen, and oxygen and is specifically used as a short-term energy source for building the structural components of living things is Carbohydrates.  

Carbohydrates are one of the biomolecules that are made up of only elements such as Hydrogen, Carbon, and Oxygen. Each molecule’s type has its unique specific function. Some significant functions of carbohydrates are mentioned as follows:

Thus, we can conclude that the correct answer is carbohydrates and thus, option D is the correct answer.

Learn more about Macromolecules here:

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Answer:

Theoretically Mirror Neurons

Explanation:

Studies conducted on monkeys show that mirror neurons play a part in their way of learning by seeing others do the same action. it is believed Humans have the same response at a different level. However it is still regarded as Mirror neruons until another theory could be proven further.

The process in which water is broken down during the light dependent reactions is called photolysis.

Reaction

H₂O-->1/2O₂+2e⁻+2p⁺

Atomic oxygen is released from the water molecule and reacts with another atomic oxygen to form molecular oxygen(O₂)

The hydrogen atom has only one proton and one electron so one hydrogen atom can be written as(e⁻+p⁺) in the water molecule 2 hydrogen atoms are present so there will be 2e⁻+2p⁺

Therefore the three things that result from photolysis are:

Spores divide through meiosis and the daughter cells are gametophytes that have half the number of chromosomes in somatic cells(they are haploid).

Answer:

The answer is gametophytes

Explanation:

Answer:

I think that I impact climate change is that we are hurting our planet including ourselves use a lot of fossils fuel and a lot of energy and we mostly used a lot of plastic and it is killing our ocean environment.

Explanation:

Answer:

D. can be identified and classified by differences in their flagellar proteins.

Explanation:

Pathogenic bacteria are unique because they can be identified and classified by differences in their flagellar proteins. Flagellin protein is a distinct component of the flagellum, which is a whip-like structure attached to the back side of the pathogenic bacteria that helps the bacteria to move in forward direction. Some bacteria are Monotrichous bacteria means have a single flagellum while some bacteria are Lophotrichous bacteria means have multiple flagella at the back side of its body.

Answer:

can be identified and classified by differences in their flagellar proteins.

Explanation:

Pathogenic bacterias are forms of bacteria that can be identified in various ways.

One of the ways to identify them is through examining of their features which can be classified by differences in their flagellar proteins.

Another way to identify them is knowing that they are the type of bacteria that causes infections in the host.

For example, Salmonella and E. coli

Answer:

The transfer of mature pollen grain from anther of the flower to the stigma of the same flower of the same [species  is called self pollination.

Generally, the transfer of pollen grains by wind,animals,and water  to stigmas is called pollination. It is a means of vegetative propagation which ensures reproduction.

Therefore during self pollination, the same genes are distributed  from one generation to another. Thus genetic purity is ensured. It also ensured reproductive success. because there is little chance of the pollen grain getting lost in transit. It is also certain  a particular plant would always breed true.

Additionally it prevent  the process of transfer of genes in some transgenic crops( rice, maize) where through genetic engineering some genes are introduced in their genome.

The only negative effect is lack of genetic diversity. Therefore after a period of time the plants get  weak and prone to diseases and infection. Because of poor resistant from lack of variation.

Explanation:

Answer:

Rh-negative

Explanation:

Erythroblastosis fetalis is a clinical condition whereby maternal antibodies begin to attack the fetal red blood cells due to incompatibility in the Rh of mother and fetus. Rh, which stands for Rhesus factor, can either be positive (Rh+) or negative (Rh-).

However, this condition (erythroblastosis fetalis) occurs in mothers/women who are Rh-negative. When an Rh- mother carries a fetus that is Rh+, the antibodies in the white blood cells of the mother identifies the blood cells of the fetus as FOREIGN, hence, begin to attack it.

However, one preventive measure is that pregnant women who are Rh-NEGATIVE must be treated with injections called Rh immunoglobulin to prevent their antibodies from attacking their baby's red blood cells.

Answer:

They play huge parts in metabolic reactions and the immune response.

Explanation:

Hope this helped!