explain what natural selection is and how it occurs

Answers

Answer 1

Answer:

Natural selection is when an animal adapts to their environment to survive and produces more offspring. It occurs when the animal isn’t thriving in their environment and they make adaptions to where they can survive.

Explanation:

An example of natural selection is, a bird used to have a really thick and short beak. But to have more access to food they adapted to their environment and now have a long and skinny beak.

Hope this helps :)


Related Questions

How are macromolecules related to energy?

Answers

Macromolecules are long term energy storage whereas carbohydrates are immediate energy. I think this is what you’re looking for?

Answer:

Explanation:

While carbohydrates supply immediate energy for the body, lipids — a class of macromolecule — provide long-term energy storage. Lipids, more commonly known as fats, appear in many foods. There are dozens of lipids, many of which are important for living things.

help me pleaseee ?!!!

Answers

Answer:

A is hydrophobic (non polar) tails

B is hydrophilic (polar) heads

Explanation:

Which food would be most likely to cause a foodborne illness?
A. Lemon juice
B. Baked potato
C. Washed apple
D. Raw sprouts

Answers

D. Raw sprouts I pretty sure

Answer: raw sprouts

Explanation: Raw sprouts are most likely to cause a foodborne illness because it is raw. Any raw food may have harmful bacteria, and it should be cooked, boiled, or fried. The answer is raw sprouts.

Hope this helps!

enzymes are important because they contain what?

Answers

Chemical reactions are important because they break down and make new molecules constantly, and are necessary for life. ... Enzymes are important in living organisms because they speed up chemical reactions that take place in cells. (Innetnt) :)

Answer:

Enzymes are proteins that serve as catalysts for certain chemical reactions. They help the human body properly digest food and break down molecules into smaller units so that the intestines can absorb all its nutrients. Enzymes occur naturally in several foods and eating them raw gives the body an ample supply to help properly digest food, maintain optimum condition of the internal organs, as well as fight cancer cells

Explanation:

Enzymes is on

Sprouts

Nuts and Seeds

Fruits and Vegetables

Papaya and Pineapple

Hurry 30 Points! I need help!​

Answers

Answer:

We need the directions. Once provided I will then edit this.

Explanation:

Solutions that have more OH- than H+ ions are

Answers

Answer:

I believe the answer is alkalines

What is homeostasis?

Answers

Explanation:

Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive.

Answer: It's where you maintain a stable internal state despite environmental changes. All organisms gotta regulate their internal environment!!! It's honestly a vibe check!

4.
What is the The state reached when
particles continue to move but
in equal amounts in and out of
the cell

Answers

Equilibrium is reached

HELP ON NUMBER 5 IMPORTANT

Answers

Answer:

FLVS?

Explanation:

number 1 stop going on brainly and asking people for answers and 2 the answer is a 25% chance that the offspring with be a chesnut colored.

What must every good hypothesis have

Answers

If, then, because format
If we change our independent variable, then how will the dependent variable change?
Example: If you eat fast food you would get a stomachache because it is unhealthy for your body.

what are key functional groups

Answers

carboxylic acid, amine, carbonyl, amino acid

Scenario
Hemoglobin is a protein that helps transport oxygen in specialized red blood cells. Oxygen is a required component for cellular metabolism (energy production), which powers important cellular processes. A person with sickle cell anemia does not produce normal hemoglobin, as seen below.


Prompt
How is DNA responsible for sickle cell anemia?


Claim​: (1-2 sentences)
Evidence​: (4 pieces of evidence are needed to get full credit.)
Reasoning​: ( A minimum of 3 sentences using vocabulary terms are needed to get full credit.)

Answers

Answer:

Explanation:

Sickle cell disease (SCD) is a group of inherited red blood cell disorders. If you have SCD, there is a problem with your hemoglobin. Hemoglobin is a protein in red blood cells that carries oxygen throughout the body. With SCD, the hemoglobin forms into stiff rods within the red blood cells. This changes the shape of the red blood cells. The cells are supposed to be disc-shaped, but this changes them into a crescent, or sickle, shape.

The sickle-shaped cells are not flexible and cannot change shape easily. Many of them burst apart as they move through your blood vessels. The sickle cells usually only last 10 to 20 days, instead of the normal 90 to 120 days. Your body may have trouble making enough new cells to replace the ones that you lost. Because of this, you may not have enough red blood cells. This is a condition called anemia, and it can make you feel tired.

The sickle-shaped cells can also stick to vessel walls, causing a blockage that slows or stops the flow of blood. When this happens, oxygen can't reach nearby tissues. The lack of oxygen can cause attacks of sudden, severe pain, called pain crises. These attacks can occur without warning. If you get one, you might need to go to the hospital for treatment.

Answer:

because DNA can spread anemia.

Explanation:

hope this helps do more research.

view question_ por favor

How can the periodic table be used to help you find elements with properties similar to that of helium.

Answers

The state of the helium in its natural form is gaseous and is a chemical element of colorless aspect and belongs to the group of noble gases.

A snake catches and eats a small field mouse. Later that day, a hawk catches the snake and eats it. Which three terms describe the snake? consumer, predator, prey parasite, predator, producer predator, producer, consumer prey, parasite, producer

Answers

Answer:

Consumer, predator, and prey.

Explanation:

The snake is a consumer and a predator because it eats or consumes another organism (the mouse), but it is also prey because it is consumed or preyed upon by another predator (the hawk).

The three terms that best describe the snake are consumer, predator, and prey. Thus, the correct option for this question is A.

What is Predator?

A predator may be characterized as a type of animal that significantly obtains food by killing and consuming other organisms in the form of food and taking energy for the metabolic processes. These animals hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey.

According to the context of this question, when a snake eats a mouse, it is called a consumer and predator because it actually drives energy from the mouse in order to facilitate its metabolic processes. When a hawk when catches a snake and eats it, it is often known as prey, and the hawk is known as a predator in this case.

Therefore, the three terms that best describe the snake are consumer, predator, and prey. Thus, the correct option for this question is A.

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Please help! If gastric protease was put in the intestine, do you think it could still carry out its usual function of digestion? Why or why not?

Answers

Answer:

Explanation:

An enzyme is a type of protein found within a cell. Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.

The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

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.

Enzymes are produced naturally in the body.

For example, enzymes are required for proper digestive system function. Digestive enzymes are mostly produced in the pancreas, stomach, and small intestine. But even your salivary glands produce digestive enzymes to start breaking down food molecules while you’re still chewing. You can also take enzymes in pill form if you’re having certain digestive problems.

Answer:

An enzyme is a type of protein found within a cell. Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.

The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

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.

Enzymes are produced naturally in the body.

For example, enzymes are required for proper digestive system function. Digestive enzymes are mostly produced in the pancreas, stomach, and small intestine. But even your salivary glands produce digestive enzymes to start breaking down food molecules while you’re still chewing. You can also take enzymes in pill form if you’re having certain digestive problems.

Explanation: i just did that question

I WILL GIVE U BRAINLEST what has hands but can’t clap

Answers

Answer:  clock cant clap

Explanation:

8.96 rounded to the nearest hundredth

Answers

Answer:

8.96

Explanation:

Trick question (the hundredths place is bolded) there is no number in the thousandths place (behind the 6) to be rounded.

how is the available energy in the marine ecosystem different than the African savanna ecosystem?

Answers

Answer:

The main producers in the marine ecosystem are plankton, whereas in the African savanna system, it's trees and grass. And in the marine ecosystem, sunlight is not available for all producers

Explanation:

A change in body temperature will have which of the following effects on enzymes in the body?

A. A temporary change in the ability of some enzymes to bind with their coenzymes

B. A temporary change in the ability of some enzymes to bind with their substrate

C. A temporary reduction in the concentration of some enzymes in the body

D. A temporary increase in the concentration of some enzymes in the body

Pls help. I think it’s either C or D idk and the question is worth a lot of points :(

Answers

Answer:

The answer is B :)

Explanation:

A temporary change in the ability of some enzymes to bind with their substrate. The correct option is B.

Thus, Animals can be categorized into two groups: those that keep a steady body temperature despite varying environmental temperatures and those that have a body temperature that fluctuates with the environment.

Ectotherms are animals that do not regulate their body temperature but instead depend on outside energy to accomplish it.

The name "cold-blooded" has been applied to this category, but it might not be appropriate for an animal living in the desert with a fairly warm body temperature. Animals known as endotherms can experience temperature extremes but rely on internal sources to maintain their body temperature.

Thus, A temporary change in the ability of some enzymes to bind with their substrate. The correct option is B.

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Which system is represented by the diagram below?
Male
Female
Hypothalamus
Pituitary gland
-Pineal gland
Thyroid gland
Adrenal
gland
Pancreas
Reproductive
glands

-endocrine
-exocrine
-respiratory
-immune

Answers

Answer:

The endocrine system.

Endocrine system is the system that release specific molecules called hormones and helps in control and co-ordination. The represented diagram is of endocrine system.

What is endocrine system?

Endocrine system is a network of glands and its associated organs. It includes hypothalamus, pituitary gland, pineal gland, thyroid gland etc.

The main function of endocrine system includes:

Making hormone.Sending them to bloodstream.regulation of release of hormone.

Thus option a is correct.

For more information about endocrine system, visit:

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Explain how you could find out whether or not an unknown liquid is water.

Answers

We can use the physical properties of water such as density, melting point and boiling point, etc to determine if a liquid is water. Water has a density of 1 gm/cm^3 or 1000 kg/m^3. We can measure the mass of one cm^3 or 1 m^3 of the unknown liquid and check against the mass of equivalent volume of water.

which example involves a cell membrane receiving and sending messages
A. A large fish chasing its prey in the sea
B. A protein forming a channel for an ion
C. A water molecule moving inside a cell
D. A tubeworm retreating from a predator

Answers

Answer: a tube worm retreating from a predator (a.p.e.x.)

Explanation:

Answer:

c should be your answer

Explanation:

What does the number 84 in krypton-84 represent

A.the sum of protons and electrons.
B.the mass number.
C.the atomic number
D.twice the protons.

Answers

B. The mass number, also known as the atomic weight/atomic mass

How do we detect the cosmic microwave background radiation?

A. by looking for a glow in the night sky

B. by looking for radiation at the blue end of the spectrum

C. through magnifying glasses

D.through radio telescopes

Answers

Answer:

D. Through radio telescopes

Explanation:

The way we are able to detect them is by radio telescopes

how are population sizes kept?

Answers

Population size is kept according to the carrying capacity of the land.

Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in through the seasons.

Where are these organisms adapted to live?

deciduous forests
desert
tropical rain forests
savanna

Answers

Answer:

Deciduous Forests

Explanation:

Answer:

Deciduous Forests

Explanation:

i just know :0

Does the endocrine system interact with any other organs!!! PLEASE HELP QUICK!!!

Answers

Answer:

yes,

The brain sends a message to the endocrine system (via the pituitary gland) for the adrenal glands to secrete their hormones cortisol and adrenaline. These hormones flood the circulation and affect other organ systems throughout the body, including the cardiovascular, urinary, sensory, and digestive systems.

Quadriceps are found in the _____.

legs
chest
arms
back

Answers

Answer:

Legs

Explanation:

Hey :)

Legs

Quadriceps are also know as quads and they are found in the legs and includes the four prevailing muscles on the front of the thigh

Hope this helps!

Question 34 (1 point)
is essential if bones are to retain normal proportions and strength during long-bone growth as the body increases in size and
weight
a.Rickets
b.Bone remodeling
c.Ossification
d.Bone maturation

Answers

Answer:

b.Bone remodeling

Explanation:

Bone remodeling is also known as bone metabolism is a process in which bones undergo bone resorption where old or mature bines tissue is removed from the skeleton and ossification (formation of new bone tissue).

Bone remodeling is a lifelong process that is influenced by the growth hormone/IGF-1 system that is stimulated when the body increases in size and  weight.

Hence, the correct answer is "b.Bone remodeling".

please answer this for me (8)

Answers

Answer:

A

Explanation:

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