CON
In this experiment, you will use a track and a toy car to
explore the concept of movement. You will measure the
time it takes the car to travel certain distances, and then
complete some calculations. In the space below, write a
scientific question that you will answer by doing this
experiment.
) Intro
Done
mous Activity

Answers

Answer 1

Answer:

How can we change the speed of a toy car on a racetrack to describe the car’s motion

Explanation:


Related Questions

Which function is performed by both goblet cells and lacrimal glands?
digestion
stress regulation
protection
growth regulation

Answers

Answer:

protection

Explanation:

The correct answer would be protection.

Goblet cells are special cells found in the epithelial layers of small and large intestines and some other organs such as those associated with the respiratory tracts. They secrete mucin and create a protective mucous layer in the walls of the intestines.

Lacrimal glands on the other hand are exocrine glands found in the eyes. They secrete the watery component of the eyes which is made up of water, electrolytes, and protein. The fluid produced by the glands protects the eyes from drying out.

Hence, both goblet cells and lacrimal glands serve protective functions.

Which part of the eye is simply an opening through which light passes?

iris
lens
pupil
retina

Answers

Answer:

Retina

Explanation:

The opening in the middle of the iris through which light passes to the back of the eye. Retina.

‼️⁉️need answer ASAP ‼️⁉️Which property describes a mixture? Cannot be separated by physical methods. It has a Single Chemical composition. It cannot have more than one state of matter. It cannot be described by a chemical symbol or formula.

Answers

Answer:

Explanation:

id :- 257 473 5835 password:- 1234

Answer:

D.

Explanation:

This diagram summarizes a method to group land plants.

A diagram summarizes a method to group land plants. Plants are divided into 1 and 2. 2 is divided into 3 and 4. 4 is divided into 5 and 6.
Which row in the table best represents the evolution of plants that match the diagram?

Labels for Plant Classifications

1
2
3
4
5
6
A
Gymnosperms
Angiosperms
Seed plants
Seedless plants
Monocots
Dicots
B
Dicots
Monocots
Angiosperms
Gymnosperms
Seed plants
Seedless plants
C
Seed plants
Seedless plants
Angiosperms
Gymnosperms
Dicots
Monocots
D
Seedless plants
Seed plants
Gymnosperms
Angiosperms
Monocots
Dicots

Answers

Answer:

The correct answer is D.

Explanation:

The plants are grouped formally into 12 phyla (phylum plural) and are collected in four groupings. These four groupings are based on the history of the evolution of important plant characteristics:

Nonvascular plants evolved earliest. They are distinct from the algae because they preserve the embryo inside of the reproductive structure after fertilization. There is no vascular tissue, xylem, and phloem for these plants to convey nutrients, water, and food. For example, moose, liverwort, and hornworts. These plants do not grow very high without vascular tissue.Vascular seedless plants have evolved into non-vascular tissue but no seeds. The fern, fern, club moss, and horsetails are examples. These plants could grow larger with vascular tissue.Gymnosperms have evolved into seeds but have no blooms. For example, redwood, fir, and cypress trees. Gymnosperms. Gymnos in Greek means "naked"; the gymnosperm seeds are bare, not floral.Flowers or angiosperms have developed into vascular tissue, seeds, and flowers. Angiosperm for example includes magnolia, roses, tulips, and tomatoes.

Answer:

The correct answer is D.

Explanation:

The muscle fibers within muscle cells are divided into myofibrils, which are further divided into _____, the contractile units of muscles.

Answers

Answer:

the answer is sarcomeres

Which layer of Earth has the highest temperatures at 5000-6000 Celsius?

Answers

Answer:

Inner Core

Explanation:

The inner core is the most inner layer of the earth. The inner core contains iron, the iron in the inner core is not pure (so not just iron) scientists believe it contains sulfur and nickel and also smaller amount of other elements. The inner core is extremely hot it is somewhere between 9000 and 13000 degrees Fahrenheit (5000 and 7000 degrees Celsius).  

explanation credit to: katnissdiv1 on weebly

State any two human activities that have a direct impact on soil formation​

Answers

Answer:

Nonetheless, some human activities have clear direct impacts. These include land use change, land management, land degradation, soil sealing, and mining. ... This in turn leads to loss of soil carbon and other nutrients and to changes in soil properties and in soil biodiversity.


[tex]what \: is \: photosynthesis \: {?} [/tex]

Answers

Answer:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

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[tex]\sf\purple{Photosynthesis}[/tex] is a process by which phototrophs convert [tex]\sf\pink{light\:energy}[/tex] into [tex]\sf\red{chemical\:energy}[/tex] .

The word “photosynthesis” is derived from the [tex]\sf\blue{Greek}[/tex] words "phos" (which means “light”) and "σύνθ-εóîς" (which means “combining together.”) And so it means “combining together with the help of light.”

The process of photosynthesis occurs in [tex]\sf\green{green\:plants}[/tex] (the primary producers in a food chain) and a few other autotrophic organisms such as cyanobacteria, purple bacteria and green sulfur bacteria.

Following is the photosynthesis [tex]\sf\purple{formula}[/tex] :

︎︎︎ 6 [tex]CO_{2}[/tex]+ 6 [tex] H_{2}O[/tex] —> [tex] C _{6} H_{12} O_{6}[/tex] ([tex]\sf\blue{glucose}[/tex]) + [tex] 6 O_{2}[/tex] ([tex]\sf\pink{oxygen}[/tex]).

[tex]\large\mathfrak{{\pmb{\underline{\red{Mystique35 }}{\red{❦}}}}}[/tex]

which type of gas or gasses are ressponsible for the start of life on earth

Answers

Answer:

Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.

Explanation:

please mark me as brinalist

Someone, please help!

Answers

Answer:

Step 2: The right ventricle pumps the oxygen poor blood to the lungs via pulmonary valve. Step 3: The left atrium receives oxygen -rich blood and pumps it to the left ventricle. Step 4: The left ventricle pumps the oxygen-rich blood via aortic valve, submitting this blood through the entire body.

Explanation:

Use this website if you need more information. Good luck.

https://wa.kaiserpermanente.org/kbase/topic.jhtml?docId=tx4097abc

The characteristics of certain cell divisions are described in the following table.


Cell Division Characteristics
Characteristic Description
1 Takes place in skin cells
2 Forms cells that are identical to parent cell


Which type(s) of cell division do the two characteristics represent?
Both characteristics represent meiosis.
Both characteristics represent mitosis.
Characteristic 1 represents meiosis and characteristic 2 represents mitosis.
Characteristic 1 represents mitosis and characteristic 2 represents meiosis.

Answers

Answer:

both characteristic represent mitosis

The characteristics of certain cell divisions are described in the following table, the two characteristics represent is both characteristics represent mitosis.

What is mitosis easy definition?

Mitosis is a Method in which a single cell divides into two identical daughter cells (cell division).

In this cell divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

Thus, option "B" is correct, Both characteristics represent mitosis.

To learn more about the mitosis click here:

brainly.com/question/26678449

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A molecule of water is comprised of:
A. One atom of negatively charged hydrogen and one atom of positively charged oxygen.
B. One atom of negatively charged oxygen and one atom of positively charged hydrogen.
C. Two atoms of positively charged hydrogen and one atom of negatively charged oxygen.
D. Two atoms of negatively charged hydrogen and one atom of positively charged oxygen.

Answers

It’s option c.
But actually water has both covalent and ionic characteristics. It is 33% ionic and 67% covalent, so it’s not right to say that it’s made up of two positive H and an oxygen atom with negative charge.
With regards to four options given third is most relevant one.

Which is NOT involved at the beginning
of a nerve impulse?
A. reaching the threshold
B. a strong stimulus
C. sodium leaving the cells
D. negative charge inside the cell


Links and random responses will be reported

Answers

Answer:

Explanation:

it would be c////////////////////

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development? Group of answer choices a compound that inhibits enzymes by significantly changing the pH throughout the body a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods

Answers

Answer:

The correct answer is - a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract.

Explanation:

In the given all the situation or conditions that is practical and possible it the drug that develop to treat high blood pressure by reversibly inhibiting an enzyme that catalyzes the chemical that leads to constirctions of the blood vessels.

These chemical cause blood vessel constrict and that leads to high blood pressure therefore inhibiting such enzyme that use to produce these chemical is a practicle solution for high blood pressure.

Q10. Which of the following animal names should be present in the Red Data book?
Indian Monkey, Cow, Black bug, deer, Asiatic lion​

Answers

i think asiatic lion in my veiw

Red data book contains the list of endangered species. Asiatic lions are declared as endangered because of their small population size.

What is Red data book ?

A Red Data Book is a record of all the animal, plant, and fungal species that are in risk of extinction in a certain nation or state. The Red Data Book was created by the International Union for Conservation of Nature to protect endangered rare plant and animal species.

The Red Data Book aids in providing thorough information for studies and research on the animal species and subspecies that are in risk of extinction. The Red Data Book is one of the most significant concepts in the study of animal biodiversity.

Therefore, name of Asiatic lions, being endangered is in Red Data Book.

Learn more about endangered species , here:

https://brainly.com/question/27935684

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1. Complete the unfinished DNA strand from below.



2. What m-RNA strand would be formed from the DNA strand that you just made in #1 above?

3. Using the codon chart in the lesson, what amino acids would be aligned from the following m-RNA strand?

A U G G C G G A A

4. If the first base in the sequence above (#3) were mutated to a C, what would that do to the amino acid sequence?

5. If you were given a single tiny chunk of a nucleic acid strand and asked if it was DNA or RNA, what things would you look for to tell?

Answers

Explanation:

1. is T G C A T because it is a DNA as it contains thymine.

2. so mRNA strand would be U G A C G U A as it is in RNA so it would be uracil with adenine.

3. is Met- Ala- Glu

4. if is mutated to a C then it would be C U G G C G A A

so it would be Leu-Ala-Glu.

5. you can look for if it contains thymine or uracil. If thymine then DNA if Uracil then RNA. you can also see if it is double or single strand. if double than DNA if single than RNA.

hope this helps you :)

A group of environmental activists in West Virginia wants to save a large forest. Which act will help them in this activity?

Answers

Answer:

The correct answer is - Eastern Wilderness Areas Act.

Explanation:

The Eastern Wilderness Act is an act to be which is thought one of America's greatest conservation achievements. This act heled in creating our National Wilderness Preservation System such as west Virginia forests from over ogging and destroying the forests. This act is mainly introduced to eastern region of the country in 1975 january. It is allowed in 13 states of eastern united states.

Thus, the correct answer is - Eastern Wilderness Areas Act.

In what order does blood flow through the body and heart? A. Right atrium, left atrium, lungs, right ventricle, left ventricle, body. B. Right atrium, left ventricle, lungs, left atrium, right ventricle, body. C. Right atrium, right ventricle, lungs, left ventricle, left atrium, body. D. Right atrium, right ventricle, lungs, left atrium, left ventricle, body.

Answers

Answer:

answer is D

l

Explanation:

Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta.

The statement that describes the order blood flows through the body and the heart is:

Right atrium, right ventricle, lungs, left atrium, left ventricle, body.

What is blood?

It is a red liquid with different shades that varies according to the amount of oxygen it has inside, that is, hemoglobin.

Characteristics of blood circulation

It is a necessary substance for oxygenation to occur between cells, as well as to regulate blood pressure.

Each side of the heart is divided into an upper chamber called the atrium and a larger, lower chamber called the ventricle.

The blood flows since it has left the right ventricle, has been oxygenated by the lungs and has returned to the left atrium through the pulmonary veins, it is carried to the left ventricle.

Therefore, we can conclude that the main function of the blood is to ensure that oxygen and nutrients are distributed between the cells of each organism.

Learn more about blood circulation here: https://brainly.com/question/3346248

How many taxa or levels exist in the phylogentic?
a)7
b)4
c)6
d) 8​

Answers

D would be the correct answer I think

Select which statements are a part of natural selection.

organisms better adapted to their environment tend to survive

organisms better adapted to their environment tend to reproduce and increase in number

organisms pass on their traits to succeeding generations.

over time, favorable traits become more common in a population

Answers

Answer:

organisms better adapted to their environment tend to reproduce and increase in number

Answer:   *organisms better adapted to their environment tend to survive

*organisms better adapted to their environment tend to reproduce and increase in number

*organisms pass on their traits to succeeding generations.

*over time, favorable traits become more common in a population

Explanation: all of them are correct :)

A teacher gave the lab group shown below an "unsafe practice" warning. What is most likely the basis for the teacher's warning?

Answers

The teacher warning could be the practice you are about to do can harm you in some way if that careful. Please let me know if I'm understanding this.

If two individuals were heterozygous for freckles, which are a dominant autosomal trait, what percentage of their offspring would you expect to have freckles

Answers

Answer:

75%

Explanation:

Firstly, an autosomal dominant trait is a trait the becomes expressed in the presence of only one affected allele, which is the dominant allele. Freckles is said to be an autosomal dominant trait meaning that the presence of the dominant allele (F) makes a person have the condition.

According to this question, If two individuals that are heterozygous for freckles cross i.e. Ff × Ff, the following proportion of offsprings will be produced: FF, Ff, Ff and ff (see punnet square).

From the genotypic observation of the produced offsprings:

FF, Ff - possess freckles

ff - do not possess freckles

Since, 3 (FF, Ff and Ff) of 4 offsprings possess freckles, the percentage of offsprings expected to have the condition will be:

3/4 × 100 = 75%

The total number of molecules of ATP produced during glycolysis is ______, which results in a net production of _____ ATP.

Answers

Answer:

The answer is "4 and 2 ".

Explanation:

The overall glycolysis ATP number is 4 of one hydroxyl group. In the first part of the glycolysis 2 ATP molecules are used, so that 2 ATP molecules are net gained. 2. In addition, 2 NADH atoms in the glycol are also created. This is why the total ATP molecules produced during metabolism are 4, resulting in a net output of 2 ATP.

A species of fly has two alleles for the length of their legs.The allele for short legs is recessive, and is represented by q. If 21 of 100 organisms have short legs what is p

Answers

Answer:

0.49

Explanation:

just because

A water pipe bursting in the winter is a result of which type of weathering?
A. Biological
B. Exfoliation
C. Chemical
D. Freeze-thaw
Hurry!

Answers

The answer of the question is
B. Exfoliation

Answer:

D

because water expands when it freezes

Which of the following do all living things share?
A. The same shape
B. The same organs
C. The need to breathe
D. The same elements

Answers

Answer:

D.

Explanation:

Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy


Is the cell an open or closed system? Explain your
answer using at least one example of a cell
organelle and its function

Answers

·         In an open system matter and energy can be transferred

·         In a closed system only energy can be exchanged

·         In an isolated system neither matter nor energy can be exchanged

·         The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system

·         As an open system the cell allows nutrients to enter the cell and waste products to exit the cell

·         The cell does this through the use of a semi-permeable membrane

·         It needs nutrients in the forms of glucose, ions and many other molecules.

·         The nutrients can come into the cell through either passive or active transport

·         In passive transport the nutrients naturally move from a higher concentration gradient to a concentration gradient.

·         During active transport the particle need to move against the concentration gradient. To do this the cell needs energy to transport the materials. The energy comes in the form of ATP.

Insects: Please choose the correct answer from the following choices, and then select the submit answer button. typically have a younger flying life stage and an older aquatic life stage after metamorphosis. generally give birth to live young. typically mate and produce young during their larval stage. have a respiratory system with spiracles connecting to tracheae.

Answers

Answer:

The correct option is ( have a respiratory system with spiracles connecting to tracheae).

Explanation:

The class INSECTA are under the phylum arthropoda which is the largest phylum in the animal kingdom. The insects are mainly land animals, they are widespread and adapted to all types of environment. They are also the only invertebrates that can fly. Examples of insects include: ants, butterflies, beetles, aphids and grasshoppers.

An insect has a well-defined head, thorax and an abdomen. The head had six segments and bears a pair of jointed antennae, compound eyes, simple eyes and mouthparts. The thorax had three segments, each bearing a pair of jointed walking legs. The abdomen has eleven segments and may have sensory and reproductive structures.

An insect carries out gaseous exchange by means of a network of open air tubes or TRACHEAE inside it's body. These tubes have openings called SPIRACLES to the exterior. Therefore the insects have an respiratory system with spiracles connecting to tracheae.

What would most likely occur over time if new technologies gave us information that challenged what scientists currently understand about natural selection

Answers

Question options:

A new scientific law would be established and proven by the findings. A new scientific theory would be established and proven by the findings. A current scientific law would be revised based on the new findings. A current scientific theory would be revised based on the new findings.

Answer:

A current scientific theory would be revised based on the new findings.

Explanation:

If new findings came about and challenged the current theory of natural selection so that Darwin's theory didn't look like it was true at all, the initial theory(darwin's theory of natural selection) would not be entirely discarded but revised according to these new findings and then form a sort of backbone to this new theory which would be based on findings of many independent researchers and not just one. Example: how some of Sigmund Freud's theories or Aristotle's may not be entirely valid today but still works as a fundamental for understanding other theories.

Down syndrome is a genetic disorder that is also called trisomy 21. A person with Down Syndrome has an extra copy of chromosome 21. What can you infer is most likely the genetic mutation that results in Down syndrome?

A: Nondisjunction during meiosis
B: Complete duplication of chromosomes during polyploidy
C: Translocation during genetic replication
D: Crossing over during meiosis

Answers

Answer:

A : Nondisjunction during meiosis

Answer:

Nondisjunction during meiosis, resulting in uneven distribution of chromosomes

Explanation:

I took the test and got it right good luck!

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Paqui lives in a colegio mayor (dorm) in Madrid and is always complaining about her roommates. To find out what she says, complete each of the following sentences with an appropriate form of a verb from the list below. Be sure to conjugate the verbs.cerrar | comenzar | pedir | perder | regar | venir1. Toms siempre __________ favores.2. El da de Santi __________ a las 3:00 de la maana.3. Lola y Eva siempre ___________ sus llaves (keys).4. Carlos nunca __________ las plantas.5. Los amigos de Amparo __________ a visitar muy tarde.6. Beln nunca ___________ la puerta. Chloe rolled 2 dice. Given that one die showed a 6, what is the probability that she rolled double 6? (Hint: Conditional Probability) Julie had 2730 cards and Kim had 3570 cards at first.Julie gave some of her cards to Kim. In the end, Kim had thrice as many cards as Julie.How many cards did Julie give Kim. 5 increased by the product of -3 and anumber xin algebraic expression Which number line represents the solutions to 1-2x = 4? Which function has lowest rate of change?5x 2y = 15 (or) Cost of 5 pencils is 15 dollarsO Algebraic FunctionO Verbal DescriptionBoth the functionsO None of the choices What kind of frog\toad is this? Giving brainliest to the first one who knows Making Changes: Central Ideas in immigrant kids In order to find the resultant of two vectors we must use the pythagoran therom, a +b2-2. Where the crepresents the resultant vector about my aim teacher For the z test, the critical region for rejection of H0 _________. Group of answer choices depends on N is determined only by alpha and N allows us to accept the null hypothesis is determined only by alpha solve for x *show work* Convert 1 Iinto an improper fraction. A 12-V battery is connected across a device with variable resisstance. As the resistance of the device increases, determine whether the following quantities increase, decrease, or remain unchanged. Indicate your answers with I, D, or U respectively.a. The current through the deviceb. The voltage across the devicec. The power consumed by the device A truck was driven a 140 miles in 3 1/2 hours. If a car is driven the same distance at an average speed of 20 miles an hour faster than the trucks average speed, how long will it take the car. A family is defined in the text as Group of answer choices an arrangement in which relatives such as grandparents, aunts, or uncles live in the same home as parents and their children. a married couple and their unmarried children living together. a set of people related by blood, marriage (or some other agreed-upon relationship), or adoption who share the primary responsibility for reproduction and care of members. a group of friends who are referred to as members of a person's family. ask him to begin the work (change into passive) Help me please please please solve 3x-4=(2x^2-2x+2) find the HCF of the following number by listing the set of factors class 6 questions is 27 and 36