Why is it important to form a hypothesis at the beginning of an experiment?
What is a scientific theory?
What is a scientific law?

Answers

Answer 1

Answer:

cvcccca

Explanation:

ajh


Related Questions

2. Discuss four types of evidence that support the theory of evolution.
HELP PLZ!!!

Answers

Evidences that support the theory of evolution;

1. COMPARATIVE ANATOMY;

This is done to compare the anatomy structures of organisms to check the adaptive changes they have undergone through time. The similarities and differences of different body structures of different organisms are checked.

Through, homologous structures where structures are similar in organisms that share the same ancestor. Example, wings of bat and wings of bird.

Through, analogous structures where structures are similar in function in different organisms. Example, fore limbs of man and monkey which are used for grabbing.

2. COMPARATIVE EMBRYOLOGY;

This is done to check embryo development in different organisms throughout time and check the similarities and differences in their development. Example, embryo of man and fish both have gills at embryo stage and in fish they develop but in man they disappear before birth.

3. FOSSILS RECORDS;

The study of fossils shows the evidence of evolution as scientists study the fossils and the development of organisms present, it displays the changes that have occured throughout the years and how other organisms share ancestors and have evolved.

4. MOLECULAR BIOLOGY;

The study of the genes of organisms to check the relationship between organisms and the changes they have undergone through time. Molecular similarities show shared ancestry of organisms. Example, human and chimpanzee share a common ancestor because they both have a gene that encodes insulin hormone.

what does it mean when the lining of the uterus is thick?

Answers

Answer:

When the endometrium, the lining of the uterus, becomes too thick, it is called endometrial hyperplasia. This condition is not cancer, but in some cases, it can lead to cancer of the uterus.

Explanation:

endometrial hyperplasia

make a reflection paper about "limiting factors affect carrying capacity"​

Answers

Answer:

Explanation:

Board of Education Curriculum Information:

1. Current Reality and Research*

In this course, students will engage in scientific inquiry, explore biochemistry, the cell, bio-energy,

mechanisms of genetics, and biotechnology. Students will also study change in organisms over time,

classification, and ecosystems. This course is designed to prepare students for A.P. Biology. Lab

experiences are an integral part of the course too. Common Core Literacy Standards for Science

and ISTE Technology Standards were reviewed and included.

2. Curriculum and Assessment Development and Revision

A. Curriculum Map/Pacing Guide – included in curriculum

B. Curriculum Development Review Feedback:

Content Leader review - [April 2015]

Director of Student Learning review – [April 2015]

Teacher/Administrator review-- [March 2015]

Curriculum Advisory Council review – [04/28/2015]

Academic Strategic Planning Committee review – [05/04/2015]

BOE First Reading – [05/21/2015]

BOE Second Reading/Approval – [06/204/2015]

Summary of curriculum and revisions: Last Curriculum Revision – [February of 2010]

Teachers used Course Level Expectation standards, previous curriculum, current curriculum

template, and content knowledge to develop this curriculum. The new curriculum supports

Biology standards as well as preparing students for A.P. Biology. The course continues to focus

on science transfer goals that transfer vertically among all science classes. It also supports the

Common Core Literacy Standards for Science and ISTE Technology Standards for Science.

This new curriculum is designed to increase rigor and relevance while preparing students to 21st

century learners. These students will be well prepared for semester exams and the Biology

E.O.C. exam.

3. Professional Development and Implementation

Professional Development Plan*

Teacher training dates ___TBD 2015-16___

Administrator training dates ___TBD 2015-16___

Approximate Expense ___$1400 ___

4. Evaluate Resources and Materials

Text Selection (if applicable)* 2016-2017

Approximate Expense_____$100,000____________

5. Monitor Implementation

Projected Date – 2017-2018 school year

6. Program Evaluation*

Projected Date – 2018-2019 school year

*see attached document(s)

Pre­AP Biology

Curriculum

Board Approved:

FHSD Academics SM Pre­AP Biology Date Approved ¨

Page 1

Francis Howell School District

Mission Statement

Francis Howell School District is a learning community where all students reach their full potential.

Vision Statement

Francis Howell School District is an educational leader that builds excellence through a collaborative culture that values students, parents,

employees, and the community as partners in learning.

Values

Francis Howell School District is committed to:

● Providing a consistent and comprehensive education that fosters high levels of academic achievement for all

● Operating safe and well­maintained schools

● Promoting parent, community, student, and business involvement in support of the school district

● Ensuring fiscal responsibility

● Developing character and leadership

Francis Howell School District Graduate Goals

Upon completion of their academic study in the Francis Howell School District, students will be able to:

1. Gather, analyze and apply information and ideas.

2. Communicate effectively within and beyond the classroom.

3. Recognize and solve problems.

4. Make decisions and act as responsible members of society.

Science Graduate Goals

The students in the Francis Howell School District will graduate with the knowledge, skills, and attitudes essential to leading a productive,

meaningful life. Graduates will:

∙ Understand and apply principles of scientific investigation.

Help i think its either C or B but i don't know please correct me if i'm wrong.
Why is the region bordering the Pacific plate called the "Ring of Fire"?


A) The islands within the Pacific Ocean form a circle from volcanic activity.


B) The Pacific Ocean is a region where climate change has resulted in the highest temperatures.


C)The boundary along the Pacific plate contains most of the active volcanoes on Earth.


D) The Pacific plate forms a ring where wildfires are likely to occur.

Answers

Answer:

B

Explanation:

The answer is B

what is the relation ship between the availabilty of resources and human population growth

Answers

Answer:

An increase in human population growth means there is an increased need for natural resources to supply the basic needs of the population.

Explanation:

there is a net movement of water into a cell from the surrounding tissue fluid. is the tissue fluid more or less concentrated than the fluid inside of the cell?

Answers

Less concentrated as, by osmosis, the water moves up the concentration gradient into area of most concentration.

If a dominant trait is beneficial to an animal, what happens to the trait's
proportion in the population? *

It becomes more common
It becomes less common
It doesn't change much

(choose the correct answer)

Answers

Answer: It becomes more common

Explanation:

Which is more important and why? Brain of spinal cord

Answers

They without each other is useless suportless protectless

during the process of ________, an existing tissue is replaced by bone.

Answers

during the process of ossification, an existing tissue is replaced by bone.

How do polar water molecules pass through the plasma membrane? (3 points)
Water molecules pass through channel proteins to cross the membrane.
Water molecules can pass through the membrane freely and rapidly.
Water molecules dissolve into the lipid bilayer and cross the membrane.
Water molecules attach to cholesterol and cross the membrane.

Answers

Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.

How is atmospheric carbon in the form of CO2 converted into a molecule that
is usable to all organisms?

A. By combustion of fossil fuels

B. By the decomposition of dead and decaying matter

C. By production of ATP through cell respiration

D. By the making of glucose through photosynthesis
WILL MARK BRAINLIEST

Answers

Answer:

D. By the making of glucose through photosynthesis

Explanation:

Photosynthesis is a chemical reaction that results in glucose. One of the reactants is CO2. So, the plants take in CO2, water, and sunlight. This produces oxygen and glucose. This is part of the carbon cycle and is the way that CO2 becomes usable for consumers.

Label the cell membrane

Answers

Answer:

a and b

Explanation:

i don't know ok

but is true

HELLLLLPPPPPPPP MMMMMMMMEEEEEEEE PLEASE

Answers

Answer:It isthe one that is blue

Explanation:

can someone summarize this for me


“summarize the information to demonstrate that you understand the concept of negative feedback “

Answers

Answer:

Short paragraph:

Homeostatis is the process by which the body maintains a stable internal environment. The hypothalamus is a part of the brain that regulates many key body processes. It works to restore the system to its normal state when an internal change in one of these systems occurs.

Long paragraph:

The hypothalamus is a part of the brain that regulates many key body processes including internal body temperature, hunger, thirst, blood pressure, and daily (circadian) rhythms. When the brain receives signals from the body about an internal change in one of its systems, it works to restore the system to its normal state. For example, the normal internal temperature for the human body is approximately 98.6 degrees Fahrenheit. If the body temperature rises because of exercise, the body will try and cool itself off. This happens through coordination between the hypothalamus and the various body systems that are affected.

What types of organisms can carry out photosynthesis?

Answers

Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis.

True or False: When carbon dioxide is in the blood, it is dissolved into bicarbonate.

Answers

Answer:

True

Explanation:

Blood types are known as multiple alleles. Cross a person who has O blood with someone who has AB blood. What are the possible blood types from this cross? (2 answers)

1. A blood type
2. B blood type
3. AB blood type
4. O blood type

Answers

Answer:

is A blood type

Explaination:

Which of the following biological molecules
are composed of the elements C, H, O, N and
S?
carbohydrates
nucleic acids
proteins
lipids

Answers

Answer:

protein

Explanation:

because carbohydrate ..nucleic acids protein

Biological molecules are large molecules made of various elements and compounds linked together. Proteins are composed of C, H, O, N, and S. Thus, option C is correct.

What are proteins?

Proteins are considered macromolecules that are large in size and are polymers composed of various units of amino acids linked together by peptide bonds. They are involved in various activities and structural functions in the body.

The chains of various amino acids linked together make the protein molecule. The amino acids involved in the structure are composed of various elements that include, hydrogen, carbon, oxygen, nitrogen, and sulfur in various combinations. The amino acids contain amine, carboxylic acid, and other variable groups.

Therefore, option C. proteins are made of monomers of amino acids.

Learn more about proteins, here:

https://brainly.com/question/846241

#SPJ2

Which process is responsible for the repair of multicellular organisms?

Answers

Answer:

Hey mate....

Explanation:

This is ur answer....

Mitosis

Mitosis is the process responsible for regeneration and repair. Mitosis helps in cell growth and development. Cells can grow old and wear off or they can get bruised and injured but eventually, they repair and regenerate.

Hope it helps!

Brainliest pls!

Follow me! ♧

During one year, the birthrate in a country is 28 births per 1000 people, and the death rate is six deaths per 1000 people. What is the population growth rate?

Answers

Answer: 22

Explanation: 28/1000-6/1000=22/1000

Birth rate is the births per 1000 people which is subtracted by the death rate which is the deaths per 1000 people, this phenomenon is known as Population growth rate. So, 22/1000 is the population growth rate for this.

What is Birth Rate?

Birth rate is the total number of people born per year per 1000 in the population. Birth rate is also known as Natality.

For example, if 65 births occur per year per 1000 individuals, the birth rate is 65. If it is expressed in the percentage, it is 6.5 per 100 or 65%.

Population is divided into many parts like Juveniles (Period before puberty), adults and Post reproductive adults. Birth rate is higher than the death rate as the population is younger, the faster that population grows.

When the birth rate is expressed as per the age group, this is called the standardized birth rate. Birth Rate is determined by the ratio between the number of live births in a population during a year and total mid-year population for the same year multiplied by 1000.

Thus, birth rate is the births per 1000 people which is subtracted by the death rate which is the deaths per 1000 people, this phenomenon is known as Population growth rate. So, 22/1000 is the population growth rate for this.

Learn more about Birth rate, here:

https://brainly.com/question/1432449

#SPJ5

what kind of energy is necessary to initiate the process of photosynthesis?

Answers

Answer:

Light energy.

light energy or radiation

the green color of leaves is evidence that green light is:

Answers

Answer: not useful to plants. To explain, plants have red and green wavelengths, but the plants use the red wavelengths for other functions, while the green remains unused in the leaves.

how long does uncooked ground beef last in the fridge

Answers

Answer: 2-4 days

hope this helps

pls give brainliest. thank you

Explain the process of evolution by natural
selection.

Answers

Answer:

Natural selection is a process where organisms that are better adapted to an environment will survive and reproduce. This means that the advantageous alleles of this variant organism are passed on to offspring. Over many generations, the process of natural selection leads to evolution occurring.

Explanation:

this should give you your answer but if not please tell me

as the change in membrane potential in propagated down a t-tubule, which event does it stimulate to occur?

Answers

Answer:

Hru friend have a good day

Explanation:

ilu friend

when did anton van leeuwenhoek invent the microscope

Answers

Answer:

1666

Explanation:

in which phase of the cell cycle does dna replication occur?

Answers

Answer:

the S phase or the synthesis phase

A block of aluminum has a mass of 40.5 grams. If the density of aluminum is 2.7 g/mL, what is the
volume of this block?

Answers

Answer: 15 mL

Explanation:

Volume = Mass ÷ Density

             = 40.5 g ÷ 2.7 g/mL

             = 15 mL

∴ the volume of the block of aluminum is 15 mL.

Classify plants according to causal organisms


Answers

Answer:

Plant disease are classified as two types like infectious (biotic) diseases which are caused by eukaryotes, prokaryotes, parasitic higher plants, viruses/viroids, nematodes, and protozoa, and noninfectious. Than their is abiotic diseases, which are caused by different extreme environmental conditions.

Explain what is happening below​

Answers

Explanation:

enzyme + substrate complex =

A substrate is a molecule that an enzyme reacts.

enzymes catalyze chem. reactions with substrates. Substrates transform into 1 or more products. released from " active site," substrate is then able 2 receive another substrate molecule.

Answer:

An enzyme is catalyzing a reaction.

Explanation:

Two substrates bind to the active site of the enzyme. The enzyme catalyzes the reaction (lowers the activation energy needed to complete the reaction), and the result is the final product: two substrates bound together, and an enzyme that can go on to catalyze more reactions.

Other Questions
Which line from the exposition foreshadows the resolution? A "But the yellow slip stuck to his door totally ruined his day. B "He typed quickly, thinking about his friends boycotting the stubborn delivery company, and his day started to feel bright again." "It bore the logo of the Russet Express delivery service, indicating that one of their employees had attempted to deliver a package at one o'clock, but no one was available." "He liked to keep his friends informed about events in his life, so D) Wes had sent an e-mail mentioning that his attractive, new garment was arriving shortly." How do events in Jerusalem in the mid-2nd century BCE to the start of the CE period set the stage for the emergence of Christianity? Pacing is an important part of any news broadcast, but it does not always work as planned. Why might a news broadcast have to change its pacing? How would this impact the rest of the news? The galleon ship was mostly used for A sailing B trading C travel D exploration pa answer po plss plssss Choose the number sentence that illustrates the distributive property of multiplication over addition.A. 2 (6 + 9) = (2 6) + 9B. 2 (6 + 9) = (2 6) + (2 9)C. 2 (6 + 9) = (2 + 6) (2 + 9) What are some of the parts of the lottery traditions that have been kept, and what has been dropped over the years? which sentence BEST summarizes the story "" The Competition""? What is the solution tx-8 > -3 If a hiker starts at an elevation of 200 feet and ends her hike at 800 feet, what was the gradient of the hill hiked? Hii Guys Let's Help Each Other Cuz I Need 4 Minutes To Do Brisa is 2 years older than Aja. Damaris is 1 year younger than half of Brisa's age. The sum of all their ages is 27. Whales and hippos are thought to have evolved from a common ancestor around 54 million years ago. Which of the following is also true about these species? doctors often do not recommend patients eat food that is high in oxalate. why do you think that is? Where in your body do you think cell division is occurring? help..................... the difference of complementary angles is 10 degree. find the measures of the angles. is the answer(s) E, D, C, B, or A? Give the number of the sample bottle that contains a substance that would be used ineach situation.1.Plumbing5.Computer chips2.Flavoring Food6.Edible Cooking Ingredient3.Crafts7.Edible Cooking IngredientFor a headache8.Edible Cooking Ingredientto o N O4. plsssssssssssssssssssssssssssssssssssssssss