Please, could someone help me with this?

Answer:

Its B

Explanation:

Respiration: The act of inhaling and exhaling air in order to exchange oxygen for carbon dioxide.

The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Answer:

i think its the third.

temperature,pressure and the original type of rock

Hi!

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

Given what we know about genetics, we can confirm that genetic modification helps provide food for a growing population by allowing us to create faster-growing crops that yield more.

Therefore, we can confirm that gene modification helps provide food for a growing population by forcing crops to be more efficient and feed more people.

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Answer:

These two numbers are fixed for an element. The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom. The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z.

Explanation:

(D) O total number of neutrons and protons

Answer:

1.Collect a thin slice of your sample and place it on a clean, dry slide 2.Place one drop of water over your sample 3. Place the coverslip at a 45-degree angle with one edge touching the water and let go 4. Your slide is ready to be viewed.

Explanation:

Hope It Help

Answer:

mitosis animal y vegetal son dos tipos de divisiones nucleares reproductivas en animales y plantas, respectivamente. Durante la mitosis, la cantidad de material genético permanece igual. Por lo tanto, aumenta el número de células en el cuerpo durante el crecimiento, la reparación y la regeneración. La mitosis ocurre en cuatro pasos principales; Profase, metafase, anafase y telofase. los diferencia principal Entre la mitosis animal y la mitosis vegetal es que el huso mitótico en la mitosis animal se forma con la ayuda de dos centriolos, mientras que el huso mitótico en la mitosis vegetal se forma sin ningún centríolo. La mitosis es seguida por citocinesis

Explanation:mira  

Answer:

rotate the fine adjustment

During S phase (synthesis), DNA replication takes place. Completion of DNA synthesis is followed by G2 phase during which cell growth continues and proteins are synthesized in preparation for mitosis. S page lasts for 8 hours approximately.

Answer:

1590’s

What year did Hans and Zacharias Janssen contribute to the cell theory? Hans and Zacharias Janssen are known for inventing the compound optical microscope. They made it in the 1590’s. This contributed to “The Cell Theory” by making it easier and more practical whilst observing cells.

Explanation:

Cell theory states that all biological organisms are made up of cells, which is the structural and functional unit of life.

Scientists Hans and Zacharias Janssen invented the compound microscope that played a vital role in observing cellular functions.

Hans and Zacharias Jansen invented the compound microscope, which consisted of the eyepiece and an objective lens.

The scientists discovered the compound microscope in the late 16th century, which then helped many scientists to magnify and observe the microscopic structures.

Thus, the Janssens discovered the compound microscope.

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Answer:

Natural:

change of seasons.

formation of clouds.

weathering of rocks.

ripening of fruits.

beating of the heart.

By us:

burning of oil.

weaving of cloth.

cooking of food.

construction works

fu****

Answer

I'll assume this means adding additional oxygen to the atmosphere.

Paper airplanes now fly farther. With all that extra air, the air pressure near the surface increases significantly. Gliders, parachutists, birds and paper-plane hobbyists enjoy greatly improved performance.

Everyone gets better gas mileage. Oxygen-enriched air improves engine performance by producing hotter reactions and reducing the proportion of nitrogen, which reduces heat transfer (Page on Energy.gov)

Higher elevation Biomes become inhabited by more vertebrates. Areas such as the high Himalayas or high Andes are no longer off-limits to animals without special adaptations to increase their levels of hemoglobin.

Insects of unusual size. Many insects rely on gaseous diffusion to for respiration, therefore the maximum body size depends on the proportion of oxygen gas in the atmosphere. Most bugs get bigger, some smaller (see Atmospheric oxygen level and the evolution of insect body size)

Everyone feels more alert, active, and happier. All that fresh oxygen improve our cognition, alertness, and physical performance. As a result, most athletic records would likely be broken by oxygen-enriched athletes.

We get sick less often. Neutrophils, soldiers of the immune system, destroy bacteria by using NADP oxidase to pump ions into, and disrupt, intruding cell's membranes causing rupture. More oxygen, more oxidase. (Page on Nih.gov)

We die younger. Free radicals (i.e. O2-) are thought to exacerbate the aging process through Oxidative stress, which interferes in numerous cellular processes: protein production, DNA replication, intercellular communication, and are also thought to contribute to MS, Alzheimers, Parkinsons, and a host of other ailments.

Explanation:

Answer:

I believe that your answer is C.

Explanation:

Keep in mind that Steve is working with crops (wheat specifically) and Devan has helped him repair his machinery so that Steve can harvest the wheat properly.

Explanation:

study of human evolution through the fossil and archaeological records

Answer:

cells, growth, reproduction, adaptation, homeostasis, use of energy and response to the environment

The property that is shared by the cells of all living things the cells contain DNA composed of adenine, thymine, guanine, and cytosine. The correct option is A.

Living things are those things that are alive, The main property of a living thing can distinguish them from non-living things. These properties are growth and reproduction.

The living cells are those cells that made all the living matter. The living cell is composed of macromolecules. The cell is composed of DNA and different cell organelles.    

DNA is present in every living organism. It determines the genetic difference of every organism. It is the same in every cell.

Thus, the correct option is A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

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The question is incomplete. Your most probably complete question is given below:

A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

B. The cells have chromosomes that are located inside a membrane-bound- nucleus.

C. The cells are surrounded by a phospholipid bilayer and a cell wall made of

cellulose.

D. The cells rely on mitochondria to carry out aerobic cellular respiration.

Answer:

B. Intestine

Explanation:

Salmonella bacteria live in the intestines of people, animals and birds. Most people are infected with salmonella by eating foods that have been contaminated by feces. Commonly infected foods include: Raw meat, poultry and seafood.

Explanation:

Image result for why do you think it is important to understand chemistry and chemical cycles

Chemical cycling plays a large role in sustaining planetary atmospheres, liquids and biological processes and can greatly influence weather and climate. Some chemical cycles release renewable energy, others may give rise to complex chemical reactions, organic compounds and prebiotic chemistry.

Chemical reactions help us understand the properties of matter. By studying the way a sample interacts with other matter, we can learn its chemical properties. These properties can be used to identify an unknown specimen or to predict how different types of matter might react with each other

Answer:

Chemistry is essential for:

1. meeting

2. our basic needs of food,

3. clothing,

4. shelter,

5. health,

6. energy,

7. clean air,

8. water,

9. soil.

Knowing something about chemistry is worthwhile because it provides an excellent basis for understanding the physical universe we live in. For better or for worse, everything is chemical!

Explanation:

Hope it helps you

Answer:

Phospholipids or fats

Answer: D

Explanation:

Answer:

false.  ulna is on pinky side, radius is on thumb side

Explanation:

Answer:

False

Explanation:

2.3 content quiz (Anatomy Plato)

Answer:

Cell is the fundamental intergral unit of life. It give rise to an organism, it's specialization allows complex or simple functions to occur within a body of an organism.

1. true

2. true

3. false

4. false

5. true

Explanation:

maaf kalau salah

Answer:

he has heterochromia iridis

Explanation:

Scherzer has an uncommon condition called heterochromia iridis that affects less than 200,000 people in the United States. The condition, which in most cases doesn't damage the eyes, is caused by the distribution and levels of melanin in the irises

Answer:

glenoid labrum.

Explanation:

The glenoid fossa is rimmed by the fibrocartilaginous

Answer:

Sometimes I wish I was a little baby again, because bruised knees heal faster than broken hearts

Answer:

tissues

Explanation: