One person pulls on a rope with a force of 400 N to the right. Another
person pulls on the opposite end with a force of 600 N to the left. What is
the net force?

a vertebrate is an organism with a spinal cord, an invertebrate has no spinal cord

Answer:Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft body, like worms and jellyfish, or a hard outer casing covering their body, like spiders and crabs.

Explanation:

Answer:

Basal cells are found at the bottom of the epidermis — the outermost layer of skin. Basal cells produce new skin cells. As new skin cells are produced, they push older cells toward the skin's surface, where the old cells die and are sloughed off.

Answer:

The respiratory system works directly with the circulatory system to provide oxygen to the body. The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide, a cell waste product.Respiratory systems work together to circulate blood and oxygen throughout the body.The respiratory system subdivides into a conducting portion and a respiratory portion. The majority of the respiratory tree, from the nasal cavity to the bronchi, is lined by pseudostratified columnar ciliated epithelium. The bronchioles are lined by simple columnar to the cuboidal epithelium, and the alveoli possess a lining of thin squamous epithelium that allows for gas exchange.The conducting piece of the respiratory system consists of the nasal cavity, trachea, bronchi, and bronchioles. The luminal surfaces of this entire portion have a lining of ciliated pseudostratified columnar epithelium and contain goblet cells. Their role is to secrete mucus that serves as the first line of defense against incoming environmental pathogens. Cilia move the mucus-bound particulate up and away for expulsion from the body. The various types and abundance of cells are dependent on which region of the airway they are.

Answer:

they both take in air. chloroplasts take in CO2, and filter it into air. the Lungs breathe that air, and make CO2, which starts a cycle. Hope this helped!

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

There are even more serious issues, as trees have several ways of influencing the climate. The first problem is that trees are dark in comparison to other things that could cover the ground, such as grass or snow. Planting more trees, as a result, tends to make the terrain darker.

Tree planting on a large scale is becoming a more popular part of worldwide efforts to fulfil climate objectives. Forests, on the other hand, are complex ecosystems, and haphazard planting can actually raise carbon dioxide (CO2) levels in the atmosphere, contributing to global warming.

Fact: Trees grow slowly

Answer:

A. The ball pushes back on the player's foot.

Explanation:

please mark brainliest.

Answer:

A. The ball pushes back on the player's foot

Explanation:

The player's foot acted with the ball, which means the ball will react.

(Newton's 3rd law: Every action has an equal and opposite reaction)

Answer:

d.  a polyatomic anion

Explanation:

ate and -ite are commonly used for polyatomic ions of Oxygen. - ate is used for the ion that has the largest number of Oxygen atoms. the -ite would be used for the ion with the smaller. NO2 and NO3 are known as Nitrite and Nitrate respectively.

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Miss Hawaii

Answer:

D. im pretty sure

Explanation:

Answer:

What is c. Chromosomes line up single file, separate, forming haploid cells

In meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells. It is this step in meiosis that generates genetic diversity. DNA replication precedes the start of meiosis I. During prophase I, homologous chromosomes pair and form synapses, a step unique to meiosis.

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Miss Hawaii

Answer:

C

Explanation:

because one parent divide to give two daughter cell

Answer:

The solar system includes the Sun, planets, and moons.

The planets travel in orbit around the Sun.

Other planets help scientists understand Earth history.

Explanation:

I think this is what you want

Answer:

The solar system is the sun and everything that orbits around it. It includes the planets and their moons as well as numerous asteroids and comets. These objects are all held in orbit around the sun by the sun's strong gravity.

The dichotomous key is a classification tool based on morphological characteristics. The correct option is B. Dichotomous keys can only be used to classify organisms based on their observable traits.

A dichotomous key might be considered a significantly useful tool to classify organisms.

The key provides an easy and fast way for identification by describing different morphological observable traits, leading you to the correct taxonomic classification.

The term dichotomous refers to how information is provided. You will always have two options (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism.

Each time you choose an option, it leads you to the following description, which gets more specific each time.

Probably you might need an atlas or a dictionary to understand some of the technical terminologies.

You will also need to carefully observe your specimen, to get to distinguish different traits. If the specimen is too small you might need a loup.

The correct statement is B. Dichotomous keys can only be used to classify organisms based on their observable traits.

You can learn more about dichotomous key at

brainly.com/question/4292942

brainly.com/question/1938800

Answer:   1.  they lack roots  2.  Dichotomous keys can only be used to classify organisms based on their observable traits.  3.  domain  4.  Both focus on illustrating taxonomic relationships between organisms.  5.  domains

Explanation: just took the quick check made 5/5 hope this helps :)

Answer:

d. formulation of a theory

Answer:

D. Formulation of a theory.

Explanation:

A scientific theory is a set of statements that, when taken together, attempt to explain a broad class of related phenomena.

Explanation:

Ions, sugars, amino acids, and sometimes water cannot diffuse across the phospholipid bilayer at sufficient rates to meet the cell's needs and must be transported by a group of integral membrane proteins including channels, transporters, and ATP-powered on pumps

Answer:

Yes your correct, there are populations of fruit flies.

Answer:

year 1800

Explanation:

I think this is the right answer, good luck dude :)

Answer:

i dont know thx for the point.s

Explanation:

Answer:

Cells, From birds to bacteria, we all have cells or are cells, depends.

Answer:

Below! : )

Explanation:

All animals are eukaryotic, multicellular organisms and most animals have complex tissue structures with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

Hope this helps! : )

Answer:

"Protein folding occurs in a cellular compartment called the endoplasmic reticulum. This is a vital cellular process because proteins must be correctly folded into specific, three-dimensional shapes in order to function correctly. Unfolded or misfolded proteins contribute to the pathology of many diseases."

Explanation:

Answer:

Its the first one because a watch means it could happen (this one is random) but if its a warning that means EVACUATE AHHHHHHHHHH.

Explanation:

Your welcome :3

Answer: njnjnjnjinjinjnjinjinjnjnjnjnjnj

Answer:

The genotypes are shown in purple

Hope this helps!

A white rooster (WW) is crossed with a black-and-white-speckled hen (Ww).

The hen lays eight eggs.

Incomplete dominance is a form of Gene interchange in which both alleles of a gene at a locus are somewhat expressed, often resulting in a medium or separate phenotype.

It is also known as partisan dominance.

For Example in roses, the allele for red colour is dominant over the allele for white colour.

Thus, A white rooster (WW) is crossed with a black-and-white-speckled hen (Ww).

To learn more about incomplete dominance click here:

https://brainly.com/question/14053639

As it's known conduction needs a medium for heat transfer and during the day, sunlight rays pass through the Earth's atmosphere and near the earth's surface is where most heat transfer by conduction occurs since air is a poor conductor. Thus, the sunlight hits the earth's surface(ground) and in turn heats the air above it and transfering the heat.

It must be known that conduction happens mostly near the earth's surface.

Answer:

Conduction is one of the ways that energy is transferred from the earth's atmosphere to the air. Conduction is the process by which heat energy is transmitted through collisions between neighboring molecules. Think of a frying pan set over an open camp stove.

Explanation:

Answer:

No, because the change of the equilibrium constant for a reaction. Keq depends only on the difference in energy level between reactants and products.

Explanation:

Answer: Reasons for cutting down trees

Explanation:

Cutting trees is an essential tool for creating habitat conditions for many wildlife species, especially game species. Eighth, cutting trees is key to forest restoration efforts.

Answer:

small plants ad animals tend to habit coral reefs because the sharp coral protects the animals from sharks and other predators. It also works as a ecosystem because every animal works together to provide for each other. I can t your anymore but that is the main idea of what coral does. if you can see if you can reword it into more sentences. How this helps!

Diseases afflicting the muscle and skeletal system are termed as musculoskeletal system disorders. Some of the common musculoskeletal system diseases include arthritis, osteoporosis, dislocation, sprain, rickets, muscular dystrophy, tetany, etc.

Answer:

They lack roots

Explanation:

The structural data which is normally used to classify mosses into the category Bryophyta is that they lack roots. Thus, the correct option for this question is B.

The characteristics of the Bryophyta are as follows:

It is known that Bryophytes include embryophytes like hornworts, liverworts, and mosses. These are very small plants that remarkably grow in shady or damp areas where there is an enormous amount of mud is present.

Bryophytes have no roots, leaves, or stems. This characteristic is the root foundation or evidence that is used to classify mosses into the category of Bryophyta.

Therefore, the correct option for this question is B.

To learn more about Bryophyta, refer to the link:

https://brainly.com/question/980729

#SPJ2

Answer:

All organisms are made of one or more cells. O All cells carry out life processes. O All…

Explanation: