Why do human can stand straight?

Answers

Answer 1

Answer:

[tex]because \: of \: the \: prescnce \: of \: bones \\ thank \: you[/tex]

Answer 2

Explanation:

The pelvis provides support for the spine and some body organs like legs containing lockable knee joints providing a column of support, bearing the weight of the head, neck and trunk, allowing us to maintain an upright position.


Related Questions

Question 3

1 pts

In populations with a

density, individuals are crowded together in their habitat. In

populations with a

density, individuals are spaced far apart.

Answers

High-density means full and low density is more empty

organelle that manages cell functions in eukaryotic cell

Answers

Answer:

Nucleus

Use the table above to fill in the chart

Structure/Function Cell Part

Organelle that manages or controls all the cell functions in a eukaryotic cell Nucleus

Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color Chloroplast

Explanation:

the ability to move from one location to another is

Answers

The ability to move from one location to another is locomotion.

distinguish between molecules and compounds. can a compound be made of molecules?​

Answers

Answer:

Molecules are two or more atoms chemically joined together

Compounds are two or more different elements joined together chemically(heteronuclear or homonuclear).

Explanation:

All compounds are molecules, but not all molecules are compounds. a molecule can be made of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule, all compounds are made up of two or more different types of atoms.One that is used a lot is water(H2o)

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how is a microscopes total magnification calculated

Answers

Answer:

rtr greggryrwufwffvtyfjggakakakakakrfckvwtnhurtehjnsgberwghebhj

Explanation:

how are rain patterns different near warm and cold fronts?

Answers

Answer:

rain near a cold front occurs over a smaller spatial area and is more intense than near a warm front

have a fang-tastic day <3

Explanation:

during which phase of the cell cycle are the chromosomes duplicated?

Answers

The chromosomes duplicate during the S phase.

hope this helped!!

b cells are white blood cells that work by ___________________, whereas t cells attacks foreign invaders __________________.

Answers

Answer:

They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness. White blood cells are made in the bone marrow.

Explanation:  cells are white blood cells that work by   bacteria, viruses, parasites and fungi.

help pls answer the question at the bottom

Answers

Answer:

no

Explanation:

the lizerd is cold blooded

menciona las 10 razones por las cuales la educación en salud es necesaria​

Answers

Answer: sie

Explanation:

Protein pumps are efficient because they
(Plz help)

Answers

In reference to the options listed in the image, we can say that protein pumps are efficient because they can move two types of molecules, which makes option B correct.

A protein pump is a kind of protein, often found in the cell membrane, that has the capability to pump specific substances in and out of the cell. Most of the processes that happen at the cellular level are naturally optimized for efficiency, even when the process consumes energy, as is the case with the protein pump.

The reason that the protein pump is considered efficient lies in how it uses the energy. Despite being an active process that consumes ATP to function, protein pumps are considered efficient because they can move two types of molecules at the same time, using the same molecule of ATP. This allows the cell to get more done for the same amount of energy.

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three importance of preserving food​

Answers

Answer:

*Food preservation increases the shelf life of food.

*Food preservation increases the food supply.

*it's safe to eat food after a long time after preservation

Explanation:

hope it helps

Which of the following allows an exchange of nutrients and waste material between blood and tissue?

Answers

Answer:

b

Explanation:

how is the nuclear membrane similar to the cell membrane?

Answers

Answer: They are made up of lipid bilayers. Furthermore, their main function is to enclose different structures of the cell regulating the passage of molecules through the membrane. Also, they act as semi-permeable membranes.

Explanation:

____________
When an enzymes breaks down or change shape

Answers

Answer:

An enzyme’s shape is tied to its function. Heat, disease, or harsh chemical conditions can damage enzymes and change their shape. When this happens, an enzyme doesn’t work anymore. This affects the body processes the enzyme helped support.

Explanation:

Hope this helps :)

What problems do animal cells have since they don't have cell walls?

Answers

Answer:

These antibiotics bond to protein molecules on the existing wall and prevent the cell from adding any new material as the wall stretches. When the cell wall stretches too far, it becomes weak and eventually bursts, destroying the cell. Since animal cells don't have cell walls, they are not affected by penicillin.

Explanation:

The volume (V) of a cylinder can be determined by using the formula
V = ar?h,
where r = the radius of the base, and h = the height of the cylinder. What is the result
of solving this equation for r?

Answers

Answer:

Explanation:

To solve for r, simply means to isolate the variable:

[tex]V = pi*r^2*h\\[/tex]

The inverse of multiplication is division, so divide both sides by pi and h

[tex]\frac{V}{pi*h} = r^2[/tex]

[tex]r = \sqrt\frac{V}{pi*h}[/tex]

How are a hypothesis and a theory similar?

Answers

Answer:

A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors.

blood is distributed from the surface of a bone to deeper central canals through channels known as

Answers

Perforating canals good luck

Blood is distributed from the surface of a bone to deeper central canals through channels known as Haversian canals.

What is Haversian canal?

Haversian canals are small channels that run through the bone tissue, and they serve as the highways for blood vessels, nerves, and lymphatic vessels. They distribute blood and other essential nutrients to the bone tissue and allow for the removal of waste products.

These canals are surrounded by concentric layers of bone matrix, known as lamellae, and they help to maintain the structural integrity of the bone. The distribution of blood through the Haversian canals is essential for the health and maintenance of the bone tissue.

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Which organic molecules serve as a catalyst in chemical reactions? O lipids O proteins onucleic acids carbohydrates​

Answers

Answer:

Proteins

Explanation:

identify the part of a rib that articulates in the demi-facets of the thoracic vertebra.

Answers

Answer:

The capitulum of a rib sits between and articulates with two successive centra, for which most thoracic vertebrae possess costal demifacets. These are anteriorly and posteriorly paired facets, so that a vertebra typically has four demifacets.

Explanation:

identify where Specialised cells are found,the job and the adaptation of:
Nerve cell
Sperm cell
Red blood cell
Egg cell​

Answers

Explanation:

i hope the link above will be helpful

Why do lysosomes keep their digestive
enzymes in membranous sacs?

A. because the membranous sacs can sense when the cell is about
to be attacked

B. because the membranous sacs keep the digestive enzymes
from destroying the cell

C. because the membranous sacs act as tails that help the
lysosomes move faster

D. because the membranous sacs act as factories helping the
digestive enzymes make proteins

Answers

B. The lysosome membrane helps to keep its internal compartment acidic and separates the digestive enzymes from the rest of the cell.

The correct answer is option B. because the membranous sacs keep the digestive enzymes from destroying the cell.

What is the purpose of the membrane surrounding the lysosome?

The membrane surrounding the lysosome is vital to ensure these enzymes do not leak out into the cytoplasm and damage the cell from within. In order to maintain the acidic pH of the lysosome, protons are actively transported into the organelle across the lysosomal membrane.

What part of the cell is a membranous sac?

A vesicle is a small, membrane-bound sac that transports substances in cells. The ER moves proteins and other substances within eukaryotic cells. Vesicles that contain newly made proteins move through the cytoplasm from the ER to an organelle called the Golgi apparatus.

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how many chromosomes do human sperm and egg cells have?

Answers

They have 23 chromosomes

what two main products result from photosynthesis?

Answers

Photosynthesis takes the energy of sunlight and combines water and carbon dioxide to produce sugar and oxygen as a waste product.

What’s the answer to these questions

Answers

Your answers are:Cytoplasm - C. Jelly- like substance within the cell membrane.Mitochondria - B. Structures that convert nutrients to energy.Vacuole - F. Sac that stores water, nutrients, or waste products.Cell membrane - A. Membrane that surrounds and protects the cell.Nucleus - D. Structure that contains DNA and regulates genes.Ribosome - E. Small structure that synthesizes proteins.Hope it helps..

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are all fungi eukariotic?

Answers

fungi are eukaryotic because they have nuclei with nuclear walls and chromosomes

Part E
State two questions you still have about GMO foods.

Answers

Answer:

Do GMOs Cause Cancer?Have Long-Term Health Studies Been Conducted on GMO Crops?

Explanation:

what three patterns of biodiversity did darwin observe

Answers

Answer:

Species vary globally, species vary locally, and species vary over time.

Explanation:

Darwin noticed three distinctive patterns of biological diversity.

Charles Darwin observed three patterns of biodiversity during his exploration on the voyage of the HMS Beagle and in his subsequent research:

Species Variation: Darwin noticed that within a particular species, there is a wide range of variation among individuals.

Geographical Distribution: Darwin observed that different regions of the world have distinct sets of plant and animal species.

Fossil Record: Darwin studied the fossil record and recognized that it contains evidence of extinct species that differ from those currently living.

Thus, these three patterns of biodiversity species variation, geographical distribution, and the fossil record were instrumental in shaping Darwin's theory of evolution by natural selection.

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Bio Trad Bench 1 Jackson MS 2021-2022
Section 1
2 of 302 of 30 Items
Item 2
A scientist performs an experiment where part of a viral sample is placed in a nutrient solution with bacteria and the other part in a nutrient solution without bacteria. Over the next two days, each solution is analyzed every two hours to measure the total amount of viral DNA.



Does the data support that the virus is a living thing?


Yes. The total amount of viral DNA increases or stays the same in both samples.

Yes. The total amount of viral DNA increases or stays the same in both samples.

Yes. The total amount of viral DNA increases when there is a source of nutrients.

Yes. The total amount of viral DNA increases when there is a source of nutrients.

No. The total amount of viral DNA with bacteria never shows a decrease in concentration.

No. The total amount of viral DNA with bacteria never shows a decrease in concentration.

No. The total amount of viral DNA only increases in the presence of another living thing.

No. The total amount of viral DNA only increases in the presence of another living thing.

Answers

Answer a because its true
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