which part of the nervous system is most immediately activated by sudden fear?

Answer:

Explanation:

1. Which chamber receives blood from all the body veins?

= Right atrium

2. The blood passes from this chamber into the ...

= Right ventricle

While this is happening, the valve between the right atrium and right ventricle is (open OR closed)

= open

3. The blood in the right ventricle is high in (oxygen OR carbon dioxide)

= carbon dioxide

4. The body (can OR cannot) and low in (oxygen OR carbon dioxide) use this blood.

= cannot

= oxygen

5. Where must this blood go to get a fresh supply of oxygen?

= lungs

Hope this helps!

Answer:

2.left ventricle, open

3. carbon dioxide

4.?

5. Carried from lungs->left side of the heart

Answer:

1CH4 + 2O2 --> 1CO2 + 2H20

Explanation:

You have to balance the equation. That means you have the same number of atoms of each element on both sides of the equation. For example, if you have 4 C (carbon) on the left side before the arrow, you also have to have 4 C on the right side.

Having 1 CH4 on the left gives you 1 C and 4 H.  On the right side, there is also 1 C in the CO2 and since there are only 2 Hs in H2) you need 2 H20 to balance the 4 Hs. You do the same thing for each letter. So since you needed 2 H2O to balance the Hs, that gives you 2 O2s , plus 2 more Os on the side of the equation from the 1 CO2, for a total of 4 Os on the right side. Therefore, yu need 4 Os on the left. there are 2 in O2, so then you need 2 of O2.

You just have to keep adding them up until there is an equal number of each letter on each side.

Answer:

Duplication, which means to double, results in two identical genes. One or both of these genes may change over time through mutations to create two new different genes. During meiosis, gene duplication is likely to happen when chromosomes cross over and recombination occurs.

Explanation:

Answer:

Explanation

↓∵∴

Answer:

macrophage

Explanation:

Answer:

You get to see the leaves change color.

AND YOU CAN CELEBRATE HALLOWEEN!!!!!

AND CARVE A PUMPKIN!

Explanation:

CELL WALL -

-protects cell externally

-Thick and rigid

CELL MEMBRANE -

-Protects cell internally

-Thin and delicate

HOPE IT HELPS :)

Answer:

Cell wall:

It allows entry of smaller molecules through it freely.

Cell Membrane:

Protecting the integrity of the interior cell.

Providing support and maintaining the shape of the cell.

Hope this helped and brainlest please!

Explanation:

The need for  affiliation might explain why we "friend" people on social  media websites, join clubs or hobby groups, and spend time with others when we  might otherwise feel like being by ourselves.

Psychologically, when we associate ourselves with other people on social media websites, events, bars or we go on clubbing, we desire the need of affiliation at the moment.

Affiliation is a process whereby individuals connect with one another which is rooted in deepened closeness and likeness to that other person with an intention that is not focused on taking advantage of the other person.

Advantages of affiliation to other people include:

Therefore, we can conclude that affiliation is the need that might explain why we friend people based on cultural union.

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The ribs are curved, flat bones which form the majority of the thoracic cavity. They provide protection to the internal thoracic organs and twelve pairs of ribs articulate with the vertebral column.

The vertebral column or spine or backbone, is a flexible column forms a part of the axial skeleton which is a characteristic feature of the vertebrates, placed dorsally and composed of 26 segmented units, called vertebrae.

It  forms the central axis of the body skeleton and emerges from the neck at the base of the skull and extends upto the tail.

The vertebral column of human consists of 33 bones at birth, the lower 9 bones fuse into two separate bones and the upper 24 bones are separated and articulated by intervertebral disc during adult stage. T

The number of bones in the vertebral column is 26 where 7 are cervical vertebrae, 12 thoracic vertebrae, 5 lumbar, 1 sacral (fused) and 1 coccygeal (fused) vertebrae. T

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Both a and b are the correct answer

Answer: option C

Explanation:

food gives energy........

Answer:

Some examples of microorganisms that utilize the Calvin cycle include cyanobacteria, purple bacteria and nitrifying bacteria.

Specifically, the Calvin cycle involves reducing carbon dioxide to sugar trisoe phosphate, most commonly known as glceraldehyde 3-phosphate (GAP).

The Calvin cycle involves reducing carbon dioxide to sugar trisoe phosphate, most commonly known as glceraldehyde 3-phosphate in bacteria.

The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction cycle of photosynthesis is a series of chemical reactions that convert carbon dioxide and hydrogen-carrier compounds into glucose.

The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH.

The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air into sugar, the food autotrophs need to grow. Every living thing on Earth depends on the Calvin cycle.

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Answer:

A

Explanation:

its an ecosystem; reaction between living things and their environment

When populations share the environment and interact with the other populations of different living species present in the same are, it is called an ecological community. Thus, the correct option is B.

An ecological community is defined as the group of species which are commonly found together in an area. Ecological communities may include animal or plant assemblages with the similar habitat requirements and contain species which may interact with each other or rely on the similar processes in their particular environment.

An example of ecological community is a forest community which comprises of all the trees, the plant community, birds, deer, squirrels, foxes, fungi, insects, and other local or seasonal species.

Therefore, the correct option is B.

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Answer:

1.) A factory produces chemical waste and releases it into a water system

2.) Water becomes polluted in nearby rivers and streams

3.) Aquatic plants stop thriving

4.) Small fish do not have adequate food

5. Larger fish have less prey to eat and their numbers decline

Answer:

2.) El agua se contamina en los ríos y arroyos cercanos.

3.) Las plantas acuáticas dejan de prosperar

4.) Los peces pequeños no tienen una alimentación adecuada.

5. Los peces más grandes tienen menos presas para comer y su número disminuye.

Explanation:

Answer:

B

Explanation:

chimpanzee are most closely related to humans

that is science view (Gen 1: 26 is the real creation of man)

Answer:

All living things in the picture. Crab, Fish, Algea and grass. A characteristic that makes a goldfish a living thing is that it grows and develops.

Answer:

1. Living: Fish and plants

Nonliving: Rocks and water

2. The goldfish characteristics are it's eyes, tail, mouth, gills, and nose, making it a living creature.

Explanation:

==>> 1. Plants are considered a living specie, along with animals (fish).

==>> 2. Parts of a living organism contains characteristic that helps define the feature of a living organism.

Answer:

The modern medical era began when an absent-minded British scientist named Alexander Fleming returned from vacation to find that one of the petri dishes he forgot to put away was covered in a bacteria-killing mold. He had discovered penicillin, the world's first antibiotic.

Answer:

They are all true

Answer:

B

Explanation

The mitochondria in an nimal cell does not use sunlight to make sugar

Answer:

plasmids that are used experimentally for these purposes are called vectors

Explanation:

Answer:

a channel

across (High->Low concentration)

Explanation:

Answer:

I dont know

Explanation:

Answer:

The process shown in picture A is called exhalation. The first reason we know that this is exhalation is because of the collapsing chest The second reason is the collapsing diaphragm

Answer:

B

Explanation:

means that the pair of genes is the same. Since the axial flower is , its genes aret, so its genotype would be AA.

Answer:

Name and Title

Include your name, instructor's name, date, and name of lab.

Objective(s)

In your own words, what was the purpose of this lab?

Hypothesis

In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the investigations. You will investigate two different versions of the tree environment as it changes over time: light-colored bark and dark-colored bark. Be sure to list your hypothesis for each environment below.

Example: If I investigate the light-colored bark environment, then I will observe an increase in the light-colored peppered moths over time.

Hypothesis for the light-colored bark:

Hypothesis for the dark-colored bark:

Procedure

The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation.

Reminder: The test variable is the item that is changing in this investigation. The outcome variable is the item that you are measuring in this investigation.

Test variable (independent variable):

Outcome variable (dependent variable):

Data

You will investigate both environments. Record your data for each trial of that environment in the data charts below.

Pre-Industrial Revolution Bark (Light-colored)

Generation Rate of Survival for Light-colored Peppered Moths Rate of Survival for Dark-colored Peppered Moths

1

2

3

4

5

Post-Industrial Revolution Bark (Dark-colored)

Generation Rate of Survival for Light-colored Peppered Moths Rate of Survival for Dark-colored Peppered Moths

1

2

3

4

5

Conclusion

Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.

What caused the tree bark to become darker?

In the lab simulation, which color peppered moth was able to have the higher rate of survival on the light bark?

In the lab simulation, which color peppered moth was able to have the highest rate of survival on the dark bark?

During the Industrial Revolution, explain what caused the population of light-colored peppered moths to decrease and the population of dark-colored peppered moths to increase over time. Be sure to include how the ability to survive and reproduce impacts the process of natural selection.

Predict which color peppered moth would have a better chance of survival in your neighborhood? Explain why.

Explanation:

The constant movement of particles when seen under a microscope is a very common observation known as Brownian motion.

All particles are made of atoms. Atoms are comprised of three components:

the first two comprise the core of an atom, surrounded by a cloud of electrons.

Though much too small to be seen without aid, these atoms do indeed possess mass and are capable of colliding with one another. Particles constantly collide with one another and are bounced in the opposing direction, over and over again. This is precisely what we observe under the microscope as particles bouncing around and is referred to as Brownian motion.

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Answer: Carbon dioxide

Explanation:

Answer:

Carbon dioxide

Explanation:

Answer:

I just need Points

Explanation:

Gggggg

Answer:

Ribosome is sperical in structure, more prcisely like a burgar. It consists of 2 subunits, which in total are classified as 70s or 80s. It is its size, same like we measure an apples length with scale as 6cm(a rough example). As its burgar shaped, it consits gap between its 2 subunits. It makes a pathway for amino acid synthesis to occure as Rna molecules takes in codon to join with the complementry anticodon. Its function is protein synthesis.

The term "You are what you eat" was coined due to the effects of the content of the food we ingest on the rest of our organism.

Food comes in an endless number of options, each of which contains numerous molecular compounds of varying kinds. Every molecular compound that we ingest through the food that we eat can have distinct effects on the body, some of these compounds include:

Macromolecules are a class of molecules that encompass many others. Proteins and lipids are just some of the examples mentioned that fall within the class of macromolecules. Some macromolecules can be good for the body, such as proteins, whilst others can cause some negative effects as is the case with lipids.

Lipids are vital for the proper functioning of the body. Lipids provide a source of reserve energy and can regulate hormones, among other important functions. However, lipids can also be harmful to your health. Lipids provide reserve energy by being stored as fat. Excessive consumption of lipids can cause numerous health problems.

Carbohydrates are at the same level as lipids in terms of their effect on the body. Carbohydrates are sugars, which are necessary to include in a healthy diet, however, excessive consumption of carbohydrates can cause health issues ranging from diabetes to pancreatic failure.

Proteins are amongst the most essential macromolecules for the human body. They provide a variety of functions which include:

among many others. This, along with nucleic acids are a prime example of "you are what you eat" in that those who consume more of these (coupled of course with proper exercise) tend to be healthier individuals.

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