The primary job of the respiratory system is respiration, or breathing. In humans and other animals, breathing is how oxygen moves into the lungs. The human body can store many nutrients, but it can’t store oxygen. Oxygen is essential for all cells to function properly. That’s why humans have to breathe continually to stay alive. Respiration also moves carbon dioxide, a waste product, out of the body.

Which of these best describes the relationship between respiration and oxygen?

A
Oxygen is the process by which respiration happens.

B
Respiration and oxygen are both types of gases.

C
Respiration is how the body takes in oxygen.

D
Oxygen comes before respiration.

1, the cheek cell looks like a germ/bacteria and contain nucleus and other organelles.

2, In the microscope I see cheek cells just magnified.

3, No just cheek cells

4, no the cell was not that visible until he zoomed in

no

I found out the cheek cells are disgusting and should never lick them with my tongue.

Answer:

1. I don't have a microscope, the cheek cell looks like a germ/bacteria and contains a nucleus and other organelles.

2. In the microscope I saw several cheek cells, some clumped together, some separate.

3. Not really, they didn't have a pronounced shape.

4. No the cell was not that visible until he zoomed in

5. Not possible

The cheek cells grossed me out, the shape, and color. I found it weird to know that those cells are on our bodies. I honestly didn't learn much about them though.

I hope this helps! :)

Answer: I think you can’t carry a gun

Explanation:

Answer:

Explanation:

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows.

Answer:

The sunflower is intolerant to shade exposure and needs full sun exposure. It has adapted to this necessity by having a heliotropic head which rotates to follow the sun, hence the name sunflower. The heads of the sunflower are heliotropic, meaning movement of the head in response to the direction of the sun.

Explanation:

Answer:

23- Vacuole

24-Centrosome

25-Nucleus

26-Cytoplasm

27-Chloroplast

28-Cell wall

29-Cell membrane

The wo differences between the hand bones of human and cat limbs are- Number of digits: Human hands have five digits (four fingers and a thumb), while cat paws have four digits. This difference in digit number is due to evolutionary adaptations that have occurred in the two species over time.

Limbs are the appendages of the body that are used for movement and manipulation. In humans and most animals, limbs typically consist of bones, muscles, tendons, ligaments, and other connective tissues that work together to produce a wide range of movements and actions.

Shape and size of bones: The bones in human hands are relatively long and slender, with distinct shapes and sizes for each digit. In contrast, the bones in cat paws are shorter and thicker, and the digits are more uniform in shape and size.

This difference in bone structure reflects the different functions of human hands and cat paws, as human hands are adapted for manual dexterity and fine motor control, while cat paws are adapted for hunting and climbing.

It's important to note that there are many other differences between human and cat limbs, including the structure and function of muscles, tendons, and ligaments, as well as the range of motion and flexibility of the joints.

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#SPJ3

Answer:

1. True

2. B and C

3. False

4. True

Explanation:

Answer:

The refractive telescopes use mirrors to magnify images: TRUE

Explanation:

I think it's TRUE because I had an assignment like this once so I'm just using my memory. ALSO I'm only answering this part of the whole question. I don't know the rest.

1. Consumers and producers both need nutrients to carry our life functions. On the other hand, producers are organisms that make their own food. Consumers are organisms that need to eat other organisms to obtain energy.

2. Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers. Mold plays a big part in material biodegradation, enabling decay and rot necessary in all ecosystems.

3. The form of energy entering the food chain is sunlight, which is being taken by plants to produce glucose as their food energy. When it leaves the food chain, the energy is then heat.

4. The percentage of the energy stored by the grass that is passed onto the hawk is 1%

5. B because you can get more production from the cow's milk and meat.

Answer:

1.)     Producers are organisms that are usually autotrophs and make their own food in the ecosystem by the process of Photosynthesis, using sunlight, to provide energy to themselves and later to consumers in the environment. Consumers on the other hand are organisms in an ecosystem that don't make their own food and get the energy from consuming producers, primary consumers or secondary consumers. There are 3 different types of consumers, herbivores, carnivores and omnivores.

2.)    The roles of decomposers in an ecosystem is very crucial, they feed on dead and decaying bodies. Therefore these decomposers are in-charge or removing dead matter from ecosystem as well as giving energy back to the ecosystem, as where it started from.

3.)    Energy enters a food chain in the form of sunlight, and leaves the food chain in the form of heat.

4.) grass = 100%; rabbit = 100% x 0.10 = 10%; hawk = 10% x 0.10 = 1%

5.) Option B, since receiving meat and milk and other dairy products would be more nutritious to the farmer's family than to eat corn most of the time

Hope this helps!

Answer:

These two processes are responsible for the exchange of oxygen and carbon dioxide between living organisms and the environment. Photosynthesis converts carbon dioxide and water into oxygen and glucose. ... Cellular respiration converts oxygen and glucose into water and carbon dioxide

Answer:

C

Explanation:

C is what the circulitory system dosent do so its C :) Sorry, i sent this a bit late.

Answer:They allow us to survive serious bacterial infections. When bacteria become resistant to an antibiotic, it means that the antibiotic can no longer kill that bacteria.

Explanation:

The population frogs in the brown hill will have more changes because they cannot camouflage to free in the brown hill,they will have to develop some traits or features that will help them adapt and live comfortably in the brown hill.

Population refers to a group of living organisms of a particular species that can interbreed, living and interacting together at the same time in the same area.

Therefore, The population of frogs in the brown hill will have more changes because they cannot camouflage to free in the brown hill, they will have to develop some traits or features that will help them adapt and live comfortably in the brown hill.

Learn more about population below.

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Answer: Robert Hooke

Explanation:

Answer:

A. Student A because it requires a hypothesis

Answer:

Drought, heatwaves, hurricanes and storm surges caused through climate change will hurt the sustainability of the Earth.

There will be an increase in poverty, a large amount of money will be needed to repair the damage. This money could have been used to better education systems or provide clean water.

Answer:

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Answer: The sunflower is intolerant to shade exposure and needs full sun exposure. It has adapted to this necessity by having a heliotrope class head which roared to follow the sun, hence the name sunflower. The heads of the sunflower are heliotropic, meaning movement of the head redefine to the direction of the sun.

You can find more out on the website http://bioweb.uwlax.edu

Answer:

I'm not sure but i think cats?

Answer:

binary fission

Explanation:

Answer:

It depends on who is making fun of you. If your parents are making fun of you, then they aren't very good parents. If your siblings are making fun of you, it's normal, but tell your parents when they make fun of you or tell them to stop.

Also, being afraid of wasps and spiders is common, but being afraid of a ladybug is a little strange in my opinion.

Answer:

3. solid, liquid

4. excretory

5. integumentary

6. unitary

Explanation:

Answer:

The part of the enzyme where the substrate binds is called the active site (since that's where the catalytic “action” happens). ... Thanks to these amino acids, an enzyme's active site is uniquely suited to bind to a particular target—the enzyme's substrate or substrates—and help them undergo a chemical reaction.

Explanation:

Enzymes are biocatalyst that accelerates the rate of chemical reaction without itself being consumed. Enzymes are mostly proteins.

The binding of enzyme with substrate is highly specific. A given enzyme usually binds to only one kind of substrate. The substrate binds to the enzyme at the active site.

Active site is the region of an enzyme where the substrate binds. The active site consist of sequence of amino acid residues which is uniquely suited to bind to a specific substrate.

Learn more about enzyme's active site-

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Answer:

animal

Explanation:

Answer: