Tyrone and Valerie wanted to determine what feature of a paper airplane would cause it to fly the farthest. Tyrone made his airplane with wider wings than Valerie's airplane. Valerie's airplane had shorter wings than Tyrone's. After testing the two airplanes several times, the data shows that wider wings help airplanes fly farther than shorter wings.

Which characteristic of science is missing from this experiment?

The question is not testable because paper airplanes are always changing.
The phenomenon is not observable because air resistance changes.
The experiment is not replicable because controlled variables are not included.
The results are not reliable because the airplanes were only tested one time.

11. Flames consume and use energy, require oxygen, and moves through the environment.

12. Although it consumes oxygen and produces carbon dioxide like living things, it is nonliving because it has no body or structured cell system.

calculate it your self,you this idiot,fool,olodo

Answer:

An aponeurosis is functionally similar to a tendon because, like a tendon, it is connective tissue that attaches muscles to bones.

Answer:

Internal forces are those forces which exert on each other when the bodies are part of the system. The forces acting between the atoms of molecules that keep them together are example of internal force.

Explanation:

Explanation:

It is a process by which the plants prepare glucose by using sunlight

Answer:

The water cycle shows the continuous movement of water within the Earth and atmosphere. ... Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).

Explanation:

HOPE IT HELPS

Answer:

32 meeters/ seconds

Explanation:

Answer:

ATOM

MOLECULES

CELL

ORGAN

ORGANELLE

ORGAN SYSTEM

Answer:

Hello! Today I will tell you somethings about water hyacinth, we will start with what does it do? Well,

Water hyacinth has a variety of negative impacts once introduced into a freshwater environment. it forms dense, impenetrable mats which clog waterways, making boating, fishing and almost all other water activities, impossible. It also reduces biodiversity by crowding out native plants at the water's surface and below.

Well that makes it seem bad is it?

(you will answer this on your own with other things you think someone would ask if you need more info just tell me, thanks!)

Explanation:

Answer:

Mitosis:

A single division occurs, separating sister chromatids

End result is two diploid cells that are genetically identical to each other and the parent cell

Meiosis:

The first division separates homologous pairs; the second division separates sister chromatids

Homologous chromosomes pair up and form chiasmata

Homologous pairs of chromosomes line up on the metaphase plate

Daughter cells contain recombinant chromosomes

End result is four haploid cells that are genetically different from each other and the parent cell  

Mitosis and Meiosis:

Chromosomes duplicate during interphase

Process starts with a diploid cell

Duplicated chromosomes line up Individually on the metaphase plate in a diploid cell

Explanation:

Mitosis is the division of vegetative cells while meiosis involves the division of sex cells. Both divisions start with diploid parental cells but while the daughter cells in mitosis are also diploid, those of meiosis are haploid. This is why mitosis is referred to as equational division while meiosis is known as reductional division.

A cell that will undergo mitosis or meiosis would first have its genetic materials duplicated during interphase in addition to the synthesis of other important biochemicals such as proteins. Mitosis involves just a single division of the sister chromatids with two genetically identical daughter cells who are also clones of the parent cells resulting.  

Meiosis, on the other hand, involves two divisions - the first one happens to separate homologous chromosome pairs while the second division separates sister chromatids just like in mitosis.  During the early stage of meiosis, homologous chromosomes synapsed through the formation of a synaptonemal complex to form tetrads. Thereafter, synapsed chromosomes exchange chromosomal segments at a point known as chiasmata. All these happen at the prophase stage of meiosis I. The paired homologous chromosomes are then lined up at metaphase where they are engaged by the spindle fibers.

Meiosis II and mitosis are more or less the same with the chromosomes condensing at the prophase and the formation of metaphase plates at the metaphase. Sister chromatids are pulled apart and they migrate to the opposite poles at the anaphase and telophase.Explanation:

Answer:

1. Air plants are part of the Bromeliad family, air plants are epiphytes — plants that attach themselves to other plants for support, without relying on the host to thrive.

2. They absorb moisture and nutrients through their leaves, not their roots, which they use only to anchor themselves to other plants or objects. Since air plants don't absorb their nutrients through their roots, they can't be planted in the soil.

3. The internal structure and anatomy of Tillandsia have adapted to survive on varied hosts both alive and not. Their leaves are able to pull moisture from the air more efficiently while some have developed a camel-like ability to store water and survive in areas prone to drought. Being up in trees or on rocky cliffs protects these plants from damage done by foraging animals, flooding or erosion on the ground.

Explanation:

Epiphytic plants can be used to determine the elemental composition of the air and soil in which they grow, cycle nitrogen, affect water retention within the rainforest, and house many resources for various plants and animals.

Through the analysis of epiphytes, biologists can determine changes in air and soil composition over time. Air pollution in the rainforest can be monitored by the use of air plants.  By monitoring how mosses and lichens respond to different air pollutants, especially heavy metals, the effect that the toxins have on the environment can be determined In the rainforest, epiphytes can be placed in areas where there is ecological damage to determine if nearby pollutants are affecting the health of the forest and additionally play a role in nitrogen cycling.

Answer:

It should be vacuole!

Explanation:

Hope this helps!

Answer:

Since photolysis is the splitting of molecules by light, the oxygen that is formed mostly supplies the oxygen in our atmosphere.

Answer:

a

Explanation:

Answer:

(A)

Explanation:

Simple osmotic pressure will make the water enter the red blood cell thereby making it first lose its biconcave shape, then swell up to a rounder spherical shape and then burst as Kevin Cooke and Andrew Lister have suggested. The process is called hemolysis.

Answer: Glucose (and also oxygen)

Explanation: Photosynthesis is the process of turning CO2 and H2O in Glucose and oxygen where the chloroplasts use the energy from the sun to rip apart the molecules and rearrange them into glucose, a useable form of energy, and oxygen, a bi product that gets released into the atmosphere.

Answer: First, gravity is the force that pulls us to the surface of the Earth, keeps the planets in orbit around the Sun and causes the formation of planets, stars and galaxies. ... The Strong Nuclear Force binds the nucleus of an atom together.

Explanation:

Answer:

Taiga ,temperate grassland

Temperate grasslands are important biomes characterized by their fertility.  The correct option is C. Temperate grassland are flat inland areas, rich and fertile due to the constant replenishing of nutrients from decomposing grasses.

Temperate grassland are then flat inland areas, rich and fertile due to the constant replenishing of nutrients from decomposing grasses. Option C is correct.

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You will learn more about temperate grasslands at

https://brainly.com/question/25885848

https://brainly.com/question/17864454

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Answer:

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.

Explanation:

Answer

The first one is vena cava.

Not sure abt the 2nd and 3rd. Sry

Answer:

1. D

2. A

3. A

Explanation:

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Answer:

Although 3 and 4 are great answers, I honestly think the answer is C. Because you can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells. Cell walls contain only little amount of protein in the cell wall.

Explanation:

Not all cells have a cell wall; the cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Cell walls are found in both prokaryotes and eukaryotes, although not all cells have cell walls. Animal cells does not have a cell wall; Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.

Answer:

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Explanation:

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Answer:

A food chain is a linear flow of energy and nutrients from one organisim to another .

A food web can be termed as the combination of many different food chains and the relationship that exists between each organisim

For instance :

FOOD CHAIN FOOD WEB

. A linear pathway . A multitude of networks

showing the flow showing the flew of energy

of energy

. A organisim of higher . An organisim of higher

level trophic feeds on a specifi- trophic level has access

c organisim of lower trophic level. to more members of a

lower trophic level.

. Has no effect on the adaptability

and compatitiveness of organisims . . Has a role in impro-

ving the adaptability

and competitiveness of an

organisim .

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Answer:

Photosynthesis occurs in plants;cellular respiration occurs in animals

Answer:

cell membrane

Explanation:

the cell membrane allows things to move in and out of the cell, allowing too much water into the cell is a problem with the cell membrane

This is because mitochondria produce ATP during aerobic respiration and ATP is needed for muscle to contract. Muscles cells contain more mitochondria because they have to release large amount of energy quickly for movement.

Answer:

the main functions of the pulp

are formation and nutrition of the dentin, as well as the innervation and defense of the tooth.

Dentin formation is one of the most critical roles carried out by the pulp and, as mentioned, is formed by the odontoblasts

Explanation:

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