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

pe and size.
2. A metal coin has certain properties that can be
measured. Which property of a coin is different
on the moon than it is on Earth?
5.
A. mass
B. weight
C. volume
D. density

Answers

the correct answer is B mas

can nonliving things share some characteristic with living things explain your answer

Answers

Answer:

yes they can like nutrition vehicles are none living yet they need fuel to move while we need food vehicles excrete or emmit smoke while we excrete waste products

Everything in the biosphere is connected true or false

Answers

True I think, sorry if i’m mistaken that’s just what I believe it is.

what are 2 organisms who do cellular respiration ?

Answers

Answer: There are two main types of organisms that use cellular respiration: autotrophs and heterotrophs.

Explanation:

Autotrophs are organisms that can make their own food. The types of organisms that are autotrophs include plants as well as some bacteria and protists (such as algae).

termites are insects that feed on wood, which contains cellucose. scientist have observed that some termite species prefer wood that has been attacked by fungi. Construct an explanation for this observation

Answers

Answer:

In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.

RESULT

In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.

Explanation:

Hope this helps

Crown me as brainliest:)

Which of the following are supported by many
observations?

hypotheses
laws
theories

Answers

Answer:

laws.

Explanation:

hypothesis is an educated guess

therous are ideas

and laws are supported by observations. like newton's law.

Answer:

laws and theories

Explanation:

bc i just answered it

PLEASE HELP :) What is the difference between Gross Primary Production and Net primary production in simple terms? (If you could also provide an example I would really appreciate it.) Thank you for your time!

Answers

Answer:

Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration. ... Net primary production is directly related to ecosystem conditions.

6
Cameron reads in his textbook that animal cells are composed of 90 percent water and 10
percent protein, carbohydrate, nucleic acid, lipid, and other molecules. He learns that
homeostasis is the process by which this composition is maintained. How does an organelle
in an animal cell control the content of water and other material in the cell?
F The cell wall splits apart to allow water and materials to enter the cell and waste
products to leave the cell.
G The cell membrane is selectively permeable, which controls the movement of materials
in and out of the cell by passive and active transport.
H Vacuoles in the cell open and draw in only the materials needed from outside the cell.
J
Lysosomes move out of the cell to capture and bring back needed materials.
7
Models of the human immunodeficiency virus (HIV) and an animal cell are shown below.

Answers

Answer:

The cell membrane is selectively permeable, which controls the movement of materials in and out of the cell by passive and active transport.

Explanation:

According to this question, animal cells are made up of the following contents: 90% water and 10% protein, carbohydrates, nucleic acid, lipids and other molecules. The cell regulates this internal composition in a stable way via a process called HOMEOSTASIS.

The animal cell is able to regulate or maintain a stable internal composition by the possession of a selective permeable membrane called CELL MEMBRANE. The cell membrane is semi-permeable in the sense that it allows the entry of some molecules into and out of the cell and blocks others.

Some molecules are allowed by the cell membrane without the need for energy input in a transport called PASSIVE TRANSPORT while some requires energy input in a transport called ACTIVE TRANSPORT.

An experiment is carried out to determine how different PH values of soil will affect the growth of tomato plants. In this experiment, the dependent variable could be the

A) height of the tomato plants
B) pH of the soil
C) specific variety of tomato plants used
D) pH of enzymes is tomato leaf cells

Answers

Answer:

A. Height of tomato plants

Explanation:

The dependent variable in an experiment is the variable that the experimenter measures or the variable that responds to changes made to the independent variable. The dependent variable is dependent on the independent variable.

In this experiment conducted to determine how different PH values of soil will affect the growth of tomato plants, the growth of the plants is measured by their height. Hence, the dependent variable is the HEIGHT OF THE PLANTS.

Question 10 of 10
Which of these is a factor that contributes to cultural change over time?
A. Technology
B. Good manners
C. Prejudice
D. Public actions
SUBMIT

Answers

A is the answer probably

There is a relationship between the number of prey organisms and the number of predator organisms in an ecosystem. Identify this relationship and explain how it occurs.

Answers

Answer:

This relation should be called Predator-Prey relationship. In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. they affect the success and survival of each other’s species. The predator prey relationships greatly affect the populations of each species, for example if we take lynx as predator and hare as prey after some time the population of hare will start declining and population of lynx will increase because hare is being EATEN and lynx is the predator here.

PLZZZZZ HELP WILLL GIVE BRAINLYISTTTTTN IM PEEING WHITE WHAT DO I DO ITS WHITE AND CREAMYYYYY

Answers

Answer:

just switch ur sexuality

Explanation:

u wont be attracted to whatever is making u bust

Answer:

have been drinking lots of water?

Explanation:

thats prob why

Vernon is using the diagram shown below to develop a model of photosynthesis. The letters A, B, and C each represent a reactant or product of the process.

In the light-dependent reactions, light strikes the oval thylakoids. Compound A enters the thylakoid, and compound B leaves it. In the light-independent reactions, compound C enters a cycle in the stroma, and sugars leave the cycle. ATP and NADPH cycle between the two sets of reactions.

Should water (H2O) be included in the model as a reactant or product? If so, how should it be included?

A. Yes, as reactant A.
B. Yes, as product B.
C. Yes, as reactant C.
D. No, it should not be included.

Answers

Yes a reactant I don’t understand the a and c part it’s one of those two

Photosynthesis is the process of preparing food in the presence of light, water, and carbon dioxide. Photosynthesis can be light-dependent or light-independent reactions.

The correct answer is:

Option A.  Yes, as reactant A.

The mechanism can be explained as:

1. Light-dependent reactions convert light energy into chemical energy.

2. The light-dependent reactions require water and light to yield oxygen, hydrogen, and energy molecules.

3. The light is used to break down the molecule of water into oxygen and hydrogen when the light strikes the thylakoid.

4. The ATP is generated in the stroma of the thylakoid membrane. The excited electrons released during the splitting of water is utilized to produce high-energy molecule.

Thus, water molecule should be used as a reactant because it yields products.

To know more about light-dependent reactions, refer to the following link:

https://brainly.com/question/1424727

Which topic do biologists ask questions about and study using scientific methods?
A)Planets and stars
B)The meaning of existence
C)Living things and the environment
D)The value of science

Answers

Answer:C

Explanation:

Answer: C. Living things and the environment

Explanation: It's correct!

What happens to glucose which enters nephron along with filtrate

Answers

Answer:

it goes down the renal tubule by the action of cilia. The tubular cells absorb glucose, amino acids, salts, etc. These are then passed into the capillary blood cells using the process of diffusion.

When glucose enters nephron along with filtrate, it goes down the renal tubule by the action of cilia. The tubular cells absorb glucose, amino acids, salts, etc. These are then passed into the capillary blood cells using the process of diffusion. Selective reabsorption is the process whereby certain molecules (e.g. ions, glucose and amino acids), after being filtered out of the capillaries along with nitrogenous waste products (i.e. urea) and water in the glomerulus, are reabsorbed from the filtrate as they pass through the nephron. Glucose that enters the nephron along with the filtrate after passing through the glomerulus, passes from the tubule of nephron where it is selectively reabsorbed and sent back to blood.
The filtered part of blood that is collected into the Bowman's space is called glomerular filtrate . ... Once the filtrate passes through the proximal convoluted tubule , the primary site of absorption, 100% of the glucose is reabsorbed back into the blood, including other nutrients and molecules. Nephric filtrate goes to Bowman's capsule when glucose comes out from it. The filtrate then passes through the tube where the blood capillaries absorb glucose. The capillaries of the blood carry glucose to all the cells of the body. Reabsorption. Reabsorption takes place mainly in the proximal convoluted tubule of the nephron . Nearly all of the water, glucose, potassium, and amino acids lost during glomerular filtration reenter the blood from the renal tubules. Following a meal, glucose utilization by the kidney increases. Normally each day, ∼180 g of glucose is filtered by the kidneys; almost all of this is reabsorbed by means of sodium–glucose co-transporter 2 (SGLT2), expressed in the proximal tubules.

summarize the importance of stem cells

Answers

Answer:

Stem cells can become almost any cell in the human body.

Explanation:

This is important because in embryonic development, the body uses stem cells to form each individual part. For example, a single stem cell could become a heart cell, or brain cell, or a blood cell, or more. This is also important for possible treatments. In order to heal damaged or diseased bone tissue, blood stem cells can be taken out of the same person and used to fix the tissue. This allows for a lower rejection rate sense the cells used to fix the tissue were already part of the person's body.

Which of these best describes a climax community?*

Answers

A community with lots of plants and animals, that have a equal balance between them that is success of a community which can only be destroyed by a fire or human causes.

Answer:

A very stable community

Explanation:

A.P.E.X

In which layer of the ocean are you likely to find microscopic plants called phytoplankton?

Answers

Answer:

The Epipelagic Zone (sunlight zone)

Explanation:

The depth of this zone is about 200 meters (656 meters) below the ocean's surface. Phytoplanktons dwell there because sunlight penetrates this zone which facilitates the process of photosynthesis.

Hope this helps!

Under certain external conditions, a person will perspire a great deal. For which internal condition does this response
primarily provide homeostasis?
water balance
electrolyte balance
temperature balance
energy balance

Answers

Answer:

Perspiration provides homeostasis to the internal condition of temperature balance.

Explanation:

Perspiration occurs as a consequence of the increase in environmental temperature, which at the same time produces an increase in body temperature.

The high body temperature produces a stimulus that reaches the thermoregulation center of the central nervous system, which produces a response transmitted through the sympathetic nervous system, causing the sweat glands to increase the production of sweat.

The sweat that covers the skin is capable of acting as a physical agent to lower the temperature, a mechanism of thermal regulation that contributes to temperature balance.

The other options are not correct because:

Water and electrolyte balance is done at the renal level. The energy balance depends on the food intake and the amount of energy used.

Answer:

temperature balance

Explanation:

What is happening when scientists explore the world around them?
OA. Making observations
B. Scientific disagreement
C. Peer review
D. Forming a hypothesis​

Answers

Answer: A:making observations.

Explanation: it is making observations because when they view there world around them they can see all of the things idk but i know its A lol

Answer:

A:making observations

Explanation:

please answer this for me

Answers

Answer:

Plants

Explanation:

In plant cells, the vacuoles are much larger than in animal cells

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.

When a can is crushed is it going threw physical change or chemical change

Answers

answer

physical change

Explanation:

Answer:

Physical

Explanation:

E

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 bird has a short sturdy beak that allows it to crush hard tough grains what does the beak's form to a specific type of food describe about the species of bird​

Answers

Answer:

Niche

Explanation:

help pls help pls question is above ​

Answers

It is eitheir b or d

I’m pretty sure it is B

Which organisms undergo Carnegie stages?

Answers

Answer:

B: Sheep

Explanation:

only mammals undergo Carneige Stages

Answer:

Salamander and Sheep!

Explanation:

2 examples of density. plz

Answers

Answer:Everyday Density Examples

In an oil spill in the ocean, the oil rises to the top because it is less dense than water, creating an oil slick on the surface of the ocean.

A Styrofoam cup is less dense than a ceramic cup, so the Styrofoam cup will float in water and the ceramic cup will sink.

Examples of dense materials:

include iron, lead, or platinum.

Future and fate are examples of destiny

Kayla summarizes the cell theory to her class. She states that all organisms are made up of one or more cells. Which pair of statements correctly completes her summary?
A. All cells are the same size, and the cell is the basic unit of all organisms.
B. All cells come from existing cells, and all cells have the same parts.
C. The cell is the basic unit of all organisms, and all cells come from existing cells.
D. The cell is the basic unit of all organisms, and all cells have the same parts.

Answers

Answer:

C

Explanation:

Cells are a basic unit of life and that without cells you don't exist as a living being.  Also, all the other answers have a flaw in them like in question A... not all cells are the same size. For question B and D... not all cells have the same, parts or organelles since for plants they have chloroplast while animals don't. Eukaryotes have membran- bound organelles and a nucleus while... a Prokaryote doesn't etc...

what is crop fallowing?
Please reply fast I need to do my biology assignment !!!​

Answers

Answer: A field, or several fields, are taken out of crop rotation for a specific period of time, usually one to five years, depending on crop. Fallowing soil is a method of sustainable land management that has been used by farmers for centuries in regions of the Mediterranean, North Africa, Asia and other places.

Explanation:

Other Questions
On average, Starla drinks 5/6of a 12 ounce glass of water in 1/3of an hour.How much water does she drink in an hour?O 10 ounces12 ounces20 ounces30 ounces A summary of the article history of the cell discovering the cell describing motion with position distance vs time graphs 5x+9=24 sovle for x ????????????? Consider the following data on x = weight (pounds) and y = price ($) for 10 road-racing bikes. Brand Weight Price ($)A 17.8 2,100B 16.1 6,250C 14.9 8,370D 15.9 6,200E 17.2 4,000F 13.1 8,500G 16.2 6,000H 17.1 2,580I 17.6 3,500J 14.1 8,000Required:Use the F test to determine whether the weight for a bike and the price are related at the 0.05 level. Given:p: student achieves 90 percent on the geometry final.q: student will receive a passing grade in geometry class.Which statement is logically equivalent to q - p?If a student achieves 90 percent on the geometry final, then the student will pass geometry class.If a student passes geometry class, then the student achieved 90 percent on the geometry final.If a student did not achieve 90 percent on the geometry final, then the student did not pass geometry class.Olfa student did not pass geometry class, then the student did not achieve 90 percent on the geometry final. Help please!! Write the equation of the line fully simplified slope-intercept form. please help asap mixed numbers solve the following statement by rewriting the mixed numbers as the sum equal parts. 2 4/7 6A.[tex]\frac{4}{21}[/tex]B.[tex]\frac{3}{7}[/tex]C.[tex]\frac{8}{21}[/tex]D.[tex]\frac{7}{3}[/tex] Which character traits does Romeo exhibit that lead to his tragic downfall? Check all that apply. an overly passionate sense of love a difficulty deciding what action to take a tendency to act impulsively a capacity for feeling all emotions too deeply an ability to calm those around him what is a active voice and a passive voice? Determine the y-intercept of theequation below. Write your answer asan ordered pair.5x + 8y = 40 What are major religious beliefs in China The number of years that Zach has been on the soccer team is 2 less than 5times the number of years that Anderson has. In total, the boys have been onthe soccer team for 10 years. How long has each boy been on the soccer team? Motivation that comes NATURALLY is from______or human drives-deep, physical urges such as hunger, thirst, fear, and tiredness *A. practiceB.instinctsC.your parentsD.your friends Do the chickens HAVE to go outside to be considered "free range"? (Yes or no answer) Mr. Robbin's words repeated in Greg's head: "Your final book projects are due Monday." Monday! He hadn't even started reading the book yet! Where did the month go? Of course, he had spent a lot of time at soccer practice and then at soccer games. Then there was that weekend the whole family visited Uncle Alan at the lake. And Greg remembered spending a few afternoons at the skate park perfecting his kick-flips. Now he knew that Mom would say no to spending the weekend at Dawson's for some video game tournaments. Plus, he was sure Dad would add, "Time sure flies when you are having fun, but some fun should be saved until after the hard work gets done." Which statement best describes the theme or author's purpose of this text? A. The theme of the text is that teenagers should listen to their parents' wise words. B. The theme of the text is that putting tasks off can ultimately cause you to miss out on fun. C. The author's purpose is to inform readers of the reasons for completing homework on time. D. The author's purpose is to entertain by telling a funny story about procrastination. explain how Quebecois french deleloped oglethorpe built forts to defend against spanish invasion good or bad decision A girl lifts a ball of 2 kg from the ground up vertically a height of 0.5 meters. How muchwork does she do? A LOT OF POINTS!! As soon as possible, doesn't have to be done immediately. Voyages of ExplorationCreate an explorers notebook.In this lesson you learned about motivations for exploration as well as many European explorers who ventured out starting in the 1400s. Put that knowledge to use by creating an explorer's notebook. In this assignment, imagine that you are one of the explorers you learn about in this lesson and create a notebook for him.