Which structure is found in all cells

Answer:

Water molecules tend to stick together due to the structure and charge of the atoms present in the water. Hydrogen atoms are positively charged while oxygen atoms are negatively charged. ... All water molecules are exerting cohesive forces on all the molecules around them including those on the surface of a body of water

Answer:

Question- How does temperature affect rate of respiration?

Independent V. - Temperature

Dependent V. - Rate of respiration

Constants

- Fish species

- Water oxygen levels

- Size of the fish

Hope this helps!

Answer:

Unlike relative dating methods, absolute dating methods provide chronological estimates of the age of certain geological materials associated with fossils, and even direct age measurements of the fossil material itself.

Answer:La energía eléctrica o electricidad es un fenómeno físico que se produce a raíz de las cargas eléctricas y de la interacción entre ellas. De esta forma, son los electrones y los protones las principales partículas subatómicas responsables de su aparición.

Explanation:

Answer:

C- the enzyme is represented by the letter C

Explanation:

Answer:

Zebra

Explanation:

It's an orgainsm, it has red blood cells, a heart, DNA molecules and cations, probably

Answer:

C is the correct answer

Explanation:

answer;

The most widespread nutritional deficiency worldwide is iron deficiency.

Iron deficiency can lead to anemia. This is a blood disorder that causes fatigue

symptoms;

Feeling tired or weak.

Having pale skin.

Having shortness of breath.

Sweating.

Being dizzy or feeling faint.

Rapid heartbeat.

Having headaches.

treatment;

Iron supplements taken by mouth.

Foods high in iron and foods that help your body absorb iron (like foods with Vitamin C).

Iron given through an intravenous (IV) infusion. (This is often a choice if you have chronic kidney disease, or CKD.)

Transfusions of red blood cells.

Women of childbearing age are the population with the most affected individuals, with an estimated 468 million being non-pregnant women.

Explanation:

Answer:

The correct answer is letter C. Experimentation.

Explanation:

For a scientist, assessing the validity of information requires experimentation. In statistics and sciences, the validity of an information has no agreed definition but it generally refers to the how the concept is being experimented before reaching to the point of conclusion.

Answer:

Whales and dolphins are mammals and have lungs instead of gills for breathing. They have blowholes at the tops of their heads that function like nostrils; they need to put their heads above water every so often to breathe. Both dolphins and whales have hair instead of scales, another quality that is specific to mammals. The animals have live births instead of laying eggs, and baby dolphins and whales nurse from their mothers. Whale and dolphin births take place near the surface of the water, so the young animals can easily take their first breath.

Both whales and dolphins rely on the sounds they make for survival, even though the sounds are utilized differently by each animal. For instance, whales make high-pitched groans and whistles to communicate with one another to warn against danger or navigate during migration

Answer:

COMPARISON AND CONTRAST OF WHALES AND DOLPHINS

Both dolphins and whales belong to the cetacean family and are marine animals that reside in the ocean. Some scientists even assert that dolphins are a type of whale, as the two animals have a number of shared characteristics. However, there are distinct differences between whales and dolphins as well that will teach you more about the physical appearance of these marine creatures and how they survive in their environment.

Answer:

climate change, loss of natural resources, air and water pollution and extinction of species.industrial processes can have negative environmental impact.

Explanation:

Answer:

Copper and Sulfur

Explanation:

Copper and sulfur are still widely used to produce the fungicide.

hope i helped :)

Answer:

The plots with no fertilizer

Explanation:

In an experiment, the control group is used as a comparison for the experimental group (the group being actively changed and observed).

So, in this experiment, the control group is the plots with no fertilizer.

This acts as a good control group because it provides a normal standard to show the effect of fertilizer on the tomato plants.

So, the control group in this experiment are the plots with no fertilizer.

Answer:The conditions required for germination is the proper amount of water, oxygen, temperature, sunlight, PHOTO in water. etc.

Explanation

Answer:The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system.

Explanation:

Answer:

Parasitic flatworms protect themselves from the host's digestive liquids by developing teguments or resistant coverings around their bodies. They secrete anti enzymes to neutralize the digestive juices of host which are produced in intestine where flatworm lives.

Answer:

pitcher with the same velocity

Answer:

The correct answer is d

Explanation:

Allosteric enzymes have multiple binding sites to different ligands called allosteric sites (different from the active site), these ligands can modify their kinetic properties. They are generally made up of more than one polypeptide chain, and have a quaternary structure, an enzyme with a quaternary structure can bind more than one substrate molecule. An allosteric enzyme is an enzyme whose activity is regulated by an allosteric center, which is a site, other than the active center of the enzyme, to which a regulator (called an allosteric regulator) binds in a reversible and non-covalent manner. The binding of this regulator modifies the three-dimensional structure of the enzyme and affects the configuration of the active site, thus increasing or decreasing its activity, depending on the case. The allosteric sites present in regulatory enzymes is where allosteric effectors or inhibitors are attached, causing a conformational change in the substrate binding site or catalytic site, thus regulating enzyme activity.

Answer:

d. depends on changes in their quaternary structure on binding of substrates or inhibitors

Explanation:

Allosteric enzymes are oligomeric proteins composed of subunits or polypeptidic chains. They have a quaternary structure -many subunits and active sites- and express two states, R and T. Both states establish an equilibrium, with or without a joint ligand.

When the transition from one state to the other occurs, symmetry is conserved, but the affinity of a site to a ligand is altered. When a substrate joins one of the sites, it affects other binding sites.

Allosteric enzymes can change their conformation, exhibiting active and inactive conformations as a result of substrate binding at the activated center and regulatory molecules at other binding sites -allosteric centers-.

Answer:

The number of beans in the experiment

Explanation:

I hope it helps choose me the brainer

Answer:

Concentration Gradient

Explanation:

This means that it will move from a region where it's in lower conc to a region of higher conc

Answer:

i think A

Explanation:

Answer:

Viruses are not living cause they need any host (body or living organism) To perform its function.

Explanation:

Answer:

Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own way they can do nothing until they entered a living cell. Without cells viruses will not be able to multiply. Therefore viruses ante not living things.

Answer:

1:When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and get very similar results then those results are said to be reliable.Reliability is measured by a percentage if you get exactly the same results every

time then they are 100% reliable.

2.The peer reviewer determines whether the introduction provides sufficient background information on the research topic, and ensures that the research question and hypothesis are clearly identifiable.

Explanation:I really hope this helped you in any way (pls tell me if I did anything wrong)

Answer:

After photosynthesis (Producers will create glucose, which is the primary source of food)

Explanation:

The biotic component of an ecosystem is made up of all living organisms in it. These organisms are divided into two main groups according to the way they feed:

--> Producers (autotrophs) and

--> Heterotrophs.

Producers are organisms that are able to use sunlight or chemical energy to manufacture their own food (glucose) from simple inorganic substances. This process is known as photosynthesis. Producers include all green plants, photosynthetic protists and some bacteria

Producers extract inorganic nutrients and chemical energy from their non-living environment, that is, from the abiotic component of the ecosystem. Since autotrophs are the only organisms that can produce food in an ecosystem, they are also known as PRIMARY FOOD PRODUCERS.

PRODUCERS use some of the food they produce for their activities and building their body tissues (growth). The rest is stored in various parts of the body.

Answer: Its C,  Producers will create glucose, which is the primary source of food.

Explanation: The person above me is right and I also got it right on the test :) hope this helps.

Explanation:

metre would be the approriate si unit