Help please, am I even doing this right?

Answer:

Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. ... A typical species becomes extinct within 10 million years of its first appearance, although some species, called living fossils, survive with little to no morphological change for hundreds of millions of years.

Explanation:

# CAUSES OF ANIMAL EXTINCTION

Demographic and genetic phenomena.

Destruction of wild habitats.

Introduction of invasive species.

Climate change.

Hunting and illegal trafficking.

# Basic causes of extinction are as follows

2. Excessive hunting and killing of wild animals.

3. Poaching for purpose of meat, skin, fur, ivory, and rhino horns etc.

4. Capture and export of new species in large number.

5. Introduction of exotic species.

6. Excessive use of pesticides, fungicides, and other toxic chemicals.

7. Conversion of fertile land in the desert by overgrazing of domestic animals.

8. Deforestation leading to loss of covers or shelter to wild animals.

9. Excessive use of plant wood for timber, charcoal or fire purpose.

Answer:

The endocrine system is a major system in the body composed of glands that secrete hormones, which are substances produced by the body to stimulate an organ or group of cells. The endocrine system controls essential bodily functions, which include movement, sexual development, sensory perception, and even growth.

Explanation:

Hormones are chemicals that are produced by the glands in the endocrine system and coordinate distinct bodily functions by carrying important messages throughout the body. They send signals to receiver cells in organs, muscles, and tissues.

Role of Hormones

Hormones have very essential roles in the body, as they regulate metabolism, growth, and sex development. For example, testosterone and estrogen are sex hormones that are released in the body to initiate sex development during puberty. The rate at which these hormones are produced and released must also be highly controlled for optimal development and growth. Hormones also control levels of hunger or exhaustion. Overall, they are very important in telling the body what to do and how to do it.

Function of Hormones

As previously mentioned, hormones serve several important functions throughout the body. They are responsible for the function of organs, in addition to controlling how the body stores and uses energy. Hormones only target specific organs or cells: for example, thyroid-stimulating hormones are released by the pituitary gland, and only target the thyroid gland. Some hormones can affect several kinds of tissues at once; for instance, the thyroid hormone, produced by the thyroid gland, can affect several bodily functions, such as heart rate and metabolism.

Answer:

Momentum is a concept or law that says if you ad speed or mass or both to a given object, the force you receive will be greater. so if a basball, say is coming at you you could easily catch it. But if a bowling ball was coming at you the same speed it would probably nock your head off.

Explanation:

Here is your equation for momentum

P=v*m

where P is momentum, V is velocity and M is mass.

Answer:

due to the variability of the flow of protons and electrons through the ATPase

Explanation:

The total number of ATP is not known exactly and is due to variance in the degree of coupling between the flow of protons through the ATPase and electron transport. ATP – Adenosine triphosphate, the energy currency of the cell is organic compound composed of the phosphate groups, adenine, and sugar ribose.

Answer:

No, because Pneumonia can be transferred from one person to another.

Explanation:

Because humans are the only natural host for S. pneumoniae, our data suggest that the CbpA-mediated recruitment of complement FH may contribute to host tropism of this pathogen. A person can spread the germs that cause pneumonia when he or she coughs and expels the bacterial or viral infections that caused the disease. The droplets containing the virus or bacteria can land on a common surface, such as a table, telephone, or computer. Anyone can get pneumococcal disease, it occurs more frequently in infants, young children, the elderly or in people with serious medical conditions such as chronic lung, heart or kidney disease. Others at risk include alcoholics, diabetics, people with weakened immune systems and those without a spleen.

Have the best day ever! :D

Answer:

true

i hope its help

carry on learning

In animal cells, cytokinesis is accomplished by using cell plate.

TRUE

False

Answer:

True

Answer:

Given: V=2.1 I = 0.30 A

Using V=IR

2.1 = 0.30 R

2.1/0.30 =R

R= 7 Ohm

Answer: 117,000

Explanation:

It is based on current environmental protection.

Answer:

Methane CH4 1 carbon atom : 4 hydrogen atoms

Sulfuric acid H2SO4 2 hydrogen atoms : 1 sulfur atom: 4 oxygen atoms

Answer:

B. Oxygen

Explanation:

Oxygen is a substance transported with the assistance of red blood cells

Answer:

B. Oxygen

Explanation:

please mark me as brainliest

Answer:

A or B

Explanation:

Answer:

From left to right

Explanation:

Cleavage, cleavage, fracture

The first item exhibit a cleavage. The second item exhibit a cleavage. The third item exhibit a fracture.

In mineral science, Cleavage is the process by which a mineral breaks or splits through smooth planes with a pattern because the material is stratified in a layered pattern. It generally seems regular since it fractures along its plane of weakness.

A fracture happens when a mineral splits with fractures and does not produce a particular definite shape. It frequently emerges in an erratic and irregular pattern.

From the three picture given, the first and the second item exhibit cleavage, and the third item exhibit fracture.

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Answer: sun

light bulbs

me lol just kidDing

Answer:

Sun , fire , light bulbs , electricity in storms, stars , fireflies

Answer:

2

Explanation:

Plants make sugar from the sun, water, and carbon dioxide in the air. a chemicls reaction happens causing photosynthesis

Answer:

the mineral calcium helps your muscles, nerves, and cells work normally. Your body also needs calcium (as well as phosphorus) to make healthy bones. Bones are the main storage site of calcium in the body

Answer:

A

Explanation:

The flow of carbon between inorganic and organic sources in the environment is best description of the carbon cycle as a whole. Thus, option B is correct.

It is the process in which carbon compounds are interchanged among the biosphere.

For example the elemental form of carbon such as diamond and graphite in a combined state are mostly found as carbonates and as carbon dioxide gas.

It act as a blanket over our earth, by balancing the energy and also absorb  sun's long wave length radiation.

It also involve in plant photosynthesis, bioaccumulation of carbon occur in animal body by consuming plant material, after the death of the animal it can decomposed and carbon is released back into the atmosphere.

The carbon which is not released back will form  fossil fuels.

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Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body.

(1) Inhales (breathes in) Oxygen - good for the body - gives it to the Circulatory System to be transported throughout the body through the blood.

(1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.

Answer:

Explanation:

Hope its help you. I wrote kinda more information thou

The human body contains trillions of cells, 78 different organs and more than 60,000 miles of blood vessels if you stretched them end-to-end. Incredibly, all of these cells, vessels and organs work together to keep you alive.

Each organ belongs to one of ten human body systems. These body systems are interconnected and dependent upon one another to function. Your heart does not beat unless your brain and nervous system tell it to do so. Your skeletal system relies on the nutrients it gains from your digestive system to build strong, healthy bones.

There are 10 body systems:

Circulatory

Respiratory

Nervous

Muscular

Skeletal

Digestive

Endocrine (hormones)

Lymphatic, or immune system

Reproductive

Integumentary (skin, hair)

A body system is a group of parts that work together to serve a common purpose. Your cardiovascular system works to circulate your blood while your respiratory system introduces oxygen into your body.

The human body contains trillions of cells, sels if you stretched them end-to-end. Incredibly, all of these cells, vessels and organs work together to keep you alive.

Each organ belongs to one of ten human body systems. These body systems are interconnected and dependent upon one another to function. Your heart does not beat unless your brain and nervous system tell it to do so. Your skeletal system relies on the nutrients it gains from your digestive system to build strong, healthy bones.

Stylized human body anatomy chart: skeletal, muscular, circulatory, nervous and digestive systems. Flat cartoon style.

There are 10 body systems:

Circulatory

Respiratory

Nervous

Muscular

Skeletal

Digestive

Endocrine (hormones)

Lymphatic, or immune system

Reproductive

Integumentary (skin, hair)

A body system is a group of parts that work together to serve a common purpose. Your cardiovascular system works to circulate your blood while your respiratory system introduces oxygen into your body.

Each Body System Works with the Others

Each individual body system works in conjunction with other body systems. The circulatory system is a good example of how body systems interact with each other. Your heart pumps blood through a complex network of blood vessels. When your blood circulates through your digestive system, for example, it picks up nutrients your body absorbed from your last meal. Your blood also carries oxygen inhaled by the lungs. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal. Meanwhile, the circulatory system carries hormones from the endocrine system, and the immune system’s white blood cells that fight off infection.

Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs. The bones of your skull and spine protect your brain and spinal cord, but your brain regulates the position of your bones by controlling your muscles. The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.

Even seemingly unrelated body systems are connected. Your skeletal system relies on your urinary system to remove waste produced by bone cells; in return, the bones of your skeleton create structure that protects your bladder and other urinary system organs. Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells.

Working together, these systems maintain internal stability and balance, otherwise known as homeostasis. Disease in one body system can disrupt homeostasis and cause trouble in other body systems. If you become ill with the AIDS virus that affects your immune system, for example, you may develop pneumonia in your respiratory system, a yeast infection in your reproductive system, Candida that affects your esophagus in your digestive system or the skin cancer known as Kaposi’s sarcoma.

it must be bathed in a solution with the same osmolarity as the organ tissue.. inorder for it not to gain or lose its solute concentration.

I it is placed in a hypotonic solution it will gain water and eventually burst and if placed in a hypertonic solution it will lose water and shrink.

it must be bathed in solution with the same osmolarity as the organ tissue.

Osmosis allows for the diffusion of water from the region of higher concentration to the region of lower concentration.

Osmolarity measures the amount of solute concentration

For an organ place in a hypertonic solution i.e solution that has a higher solute

For organ in  hypotonic solution i.e solution that has a lower  solute concentration

but when the osmolarity is the same the Organ will have the same solute concentration as the solution and will help keep the organ in its original form, it will not absorb or lose any solution.

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Answer:

Reinvestment of coupon payments

Answer:

Sunlight and water.

Explanation:

The sun is the plant's most important nutrient. Plants convert sunlight into sugars in order to grow. Water is needed in two ways, it serves as both a solvent for mineral salts that are carried inside plant cells, and it is an essential component of photosynthesis. The questioner might have asked "name one" so they don't have enough information to answer with any greater certainty - but the answer remains the same regardless of how many nutrients they ask about.

Minerals are also required by plants in order to function properly including calcium, potassium, iron, magnesium just to name a few minerals which are found in healthy nutritious produce!

Answer:

sunlight and water

Explanation:

is the two nutrition that plant need

Answer:

Muscle growth and repair would be limited.

Answer: It can be both but it is mainly an inherited trait but environmental things can make your eye sight worse or better which can end up being an acquired, but like I said its more so an inherited trait.

Explanation:

Answer:

It is used for detecting bacteria

Answer:

D

Explanation:

higher water concentration outside the cell to a lower water concentration inside the cell

Explanation:

water will defuse from a higher water concentration outside the cell to a lower water concentration inside the cell. Red blood cells are placed in a solution with a lower water Concentration compared to content 1.7% salt solution will lose water by the osmosis and shrink

Given our knowledge of ecosystems, we can confirm that the diverse habitats found at one location near the equator are due to the changes in elevation.

The effects that elevation has on the climate are what enable the diversity of habitats on a single mountain. As elevation increases, atmospheric pressure decreases. This decrease in pressure then causes a decrease in temperature.

The base of the mountain is a dry and hot habitat, while as we travel upwards towards higher elevation we see a transition in habitats into a more tropical forest style and then eventually an alpine tundra, further proving the claim that elevation lowers the temperature.

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Answer:

Reversible and irreversible inhibitors are chemicals which bind to an enzyme to suppress its activity.

The important types of inhibitors are competitive, noncompetitive, and uncompetitive inhibitors.

Explanation:

BY Roses_are_Rosie

The correct option is B.

Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.

Alpha‐gamma coactivation is a process that the muscle use to keep or maintains it's length. It works in a way that when the muscle contracts or relaxes , the sensory neuron send the information to the central nervous system about what happen to the muscle. This lead the intrafusal and extrafusal fibers to contract.

Alpha-gamma coactivation enhance the muscle spindles ensure its sensitivity to stretch the muscle lengths.

Therefore, Alpha gamma coactivation is critical for maintaining the appropriate tension on the spindle organ during contraction of extrafusal fiber.

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