Biology College

can someone please answer this question?

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Answer 1

Answer:

Explanation:

Related Questions

Why does the bronchioles get smaller and smaller before they reach the alveoli?

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Answer: Parasympathetic stimulation causes bronchoconstriction while sympathetic stimulation causes bronchodilation. During an asthma attack, the muscles that encircle the airway tighten or constrict, limiting the flow of air to and from the lungs.

Explanation: i hope this answers your question and i have a awesome marvelous day.

Answer:

In your lungs, the main airways (bronchi) branch off into smaller and smaller passageways -the smallest, called bronchioles lead to tiny air sacs (alveoli)

the bronchiole end in tiny air sacs called alveoli, where oxygen is transferred from the inhaled air to the blood, after absorbing oxygen, the blood leaves the lungs and is carried to the heart, the blood then is pumped through your body to provide oxygen to the cells of your tissues and organs.

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Answer:

z and y only

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Discuss the importance of the change in CO with exercise?

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Enhancing cardiac output allows you to maintain lower heart rates during physical activity. During exercise SV will increase related to the response of the increased pressure of the heart in order to supply blood to the body.

What does photosynthesis produce?

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Answer: cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen

Explanation:

i hope this help

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I think the answer is C. If correct please give me brainliest because I am almost to expert and I need 6 more brainliest answers because I have all the points all I need are the brainliest.

What are two types of animal waste?

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Answer:

Throughout the following segment, the summary of the given question is summarized.

Explanation:

Animal wastes were most typically thought of as excretory products somewhat from living organisms.

The two types of waste are:

Biodegradable:

The certain commodity that could be quickly decomposed by moisture or water, oxygen, sunlight, or microbes has been considered biodegradable waste.

Non-biodegradable:

Material has always been characterized as such a substance that can't be disassociated via living phenomena as well as being a pollutant.

which organisms transform nitrogen to a form that useful to plants

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Answer:

nitrogen-fixing bacteria

Answer: A

Explanation:

Can you answer what’s on this worksheet?

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What question do you want answered.

Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Which of the following mutations could lead to constitutive expression of the genes of the lac operon? A mutation in the lac-Z gene A mutation in the lac-Y gene A mutation in the operator sequence A super repressor mutation Submit Part B Which of the following best describes the biological role of the lac operon? View Available Hint(s) Which of the following best describes the biological role of the lac operon? It ensures that bacterial cells produce lactose only when no other food sources are available. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner. It prevents other sugars from being metabolized until all available lactose has been used. Submit Part C The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. View Available Hint(s) The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. True False

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Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

A cell goes through mitosis every 30 minutes. How many cells will there be after 3.5 hours?

Answers

Answer: 7

Explanation:

3.5 = 210 minutes

210 / 30 = 7

Clouded leopards are medium sized, endangered species of cat, living in the very wet cloud forests of Central America. Assume that the normal spots (XDY)are a dominant, sex-linked trait and that dark spots are the recessive counterpart. What is the possible genotype of the mother?

Answers

Answer:

It is all black

Explanation:

Because it changes over time.

6. Which is the youngest holiday: "Earth Day" or "Arbor Day"?
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Arbor Day is younger

how is the ratio of gas produced during fermentation related to yeast glucose solution

Answers

I doe relays need
To be a real answer

The botanist from the nursery is planning to develop a large number of new
spider plants with larger flowers.
Identify the type of reproduction the botanist should use to develop the new
spider plants and explain why this type of reproduction is preferable.

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Answer: The botanist should use sexual reproduction to make the new plants because asexual reproduction will only produce spider plant offspring with the same types of traits as the parents.

Explanation:

Assuming that the botanist already has spider plants with larger flowers in their nursery, in order to develop a large number of the plant based on the same traits, asexual reproduction method should be used.

Asexual reproduction method is preferred because:

the daughter plants come out with exactly the same traits as the parent plant,large number of plants can be produced at once

Sexual reproduction leads to variation such that daughter plants will not have exactly the same traits as their parents. The number of plants that can be produced sexually is also limited.

More on asexual reproduction can be found here: https://brainly.com/question/4100787

Please select the word from the list that best fits the definition

States that buoyant force = weight of the fluid displaced

Answers

Answer:

Archimedes Principle is the word that best fits the definition.

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16. Which combination of terms correctly matches an organ system with a tissue in that system?
a. Circulatory system - cardiac muscle
b. Digestive system - cartilage
C. Respiratory system - pancreas
d. Nervous system - marrow

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Answer:

Explanation:

Answer:

Explanation:

The Circulatory System is a system that circulates blood around the body. Cardiac Muscle refers to your heart, which is a prominent part in the Circulatory System.

Which of the following statements is true?
Earth's atmosphere helps it maintain a constant temperature.
Condensation is the process by which water changes from a liquid into a gas.
Plants do not perform respiration.
Animals add water to the atmosphere through photosynthesis.

Answers

Earth's atmosphere helps maintain a constant temperature.

Answer:

hello there your answer is A:Earth's atmosphere helps it maintain a constant temperature.

Explanation:

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If all of your cells have the same complete set of DNA why do different cells in different proteins

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Why do we have different cells in our bodies if every cell has the same DNA?

The genome of a cell contains in its DNA sequence the information to make many thousands of different protein and RNA molecules. A cell typically expresses only a fraction of its genes, and the different types of cells in multicellular organisms arise because different sets of genes are expressed.

Cancer is a disease of the cell cycle. Which of the following is NOT true of cancer cells? Cancer cells engage in uncontrolled cell division. Cancer cells ignore signals that should cause them to stop dividing Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activity is deteced.

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Answer:

Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.

Explanation:

This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.

The adenine of the start codon is located at the +1 position. Use the DNA Mutations Interactive to determine which statements describe missense mutations. a substitution of G to U at position +13 in the sense strand a transition at position +12 in the antisense strand a transversion of C in the sense strand of the histidine codon a G nucleotide is inserted after position +1 in the antisense strand a deletion of the A at position +7 in the antisense strand an insertion of A between positions +7 and +8 on the sense s

Answers

Answer:

A transition at position +12 in the antisense strand

A deletion of the A at position +7 in the antisense strand

Explanation:

Given that Adenine of the start codon is located at the +1 position, The correct statements that describe missense mutations are

A transition at position +12 in the antisense strandA deletion of the A at position +7 in the antisense strand

Adenine is a purine nucleobase that is used in the formation of nucleic acids

Question 20 of 34
Which situation shows a nonrenewable resource in use?
A. Solar energy reaches Earth's surface.
B. Sunflowers grow from sunflower seeds.
O c. Computer chips are made from silicon.
D. Lobsters are caught off the coast of Maine.

Answers

Answer:

c. Computer chips are made from silicon.

Explanation:

Non-renewable resources are natural substances that cannot be easily replenished when used. Examples are natural gas, coal, oil, nuclear energy, etc. Silicon is made when Silica is heated with carbon after which the product is reacted with hydrocarbons to polymerize them. Since the hydrocarbons are made from oil and natural gas, the resulting product is non-renewable.

Chips made from silicon are not biodegradable because to reuse them, they must be sent to companies that have specialty in renewing them.

Mark all that apply. What evidence is used to classify living things into groups.

A) cell type

B) habitat

C) how organism obtains food and energy

D) common ancestry

E) DNA

Answers

Answer:

Explanation:

Taxonomy is a branch of biology centered around classifying animals into living groups. This is done based on the differences and similarities between animals. Taxa in the Linnaean system include kingdom, phylum, class, order, family, genus, and species. Between these relations it all stems from common ancestry. Which is what can relate species to others. Hope this helps!!

Answer:

your answer would be D

Explanation:

cause I big brain

dsadasd das sad afsasdasdsa?

Answers

I am sorry what?????

what language is this?

A massive flood tears out many trees in a wooded area. What would you expect the area to look like a year later?
A.
A new species of trees will be about half grown.
B.
Grasses and weeds will be growing in the sunny areas.
C.
It will look exactly like it did before the flood.
D.
There will not be any plants growing the first year.

Answers

The best answer is B, the reason why secondary succession happens much faster than primary succession is because the oil is already there, once the oil is there- with enough sunlight- grass and weeds will grow easily within the span of a year.

Answer:

Explanation:

Which of the following is undesirable when developing organic compost?
a)treated sawdust
b)decomposition
c)nematodes
d)kitchen detritus

Answers

it is either b or d. good luck

Answer:

Explanation:

nematodes are roundworms and are undesirable

Which of the following best describes how the RNA sequence specifies the production of an amino acid chain?

A.
Each individual RNA base codes for three amino acids.

B.
Each group of three RNA bases codes for an enzyme that connects amino acids.

C.
Each individual RNA base codes for a ribosome location where amino acids are assembled.

D.
Each group of three RNA bases codes for a specific amino acid.

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Answer:

The answer is B Each group of three RNA bases codes for an enzyme that connects amino acids.

3. When the mRNA is translated, the order of its codons determines the order of amino acids in the resulting polypeptide O a. True O b. False

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Answer:

True

Explanation:

What adaptation helps the pine tree reduce water loss?
leaves
thorns
Seeds in cones
Woody stems

Answers

Answer:hojas

Explanation:

Answer:

Explanation:

Pine trees thankfully have needles, which are thin, waxy leaves that enable them to make food year-round. The waxiness of the needles helps evergreens not lose water to evaporation.

(By CMI W Sunce Source
1. What organism is pictured?
2. Name and describe the process is shown on the right.
3. What is the name of the circular bodies? What happens there?

Answers

Answer:

Explanation:

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Answers

Answer:

Explanation: i had this in a social studies test before its a

Answer:

IN my opinion, it should be B

Explanation:

Other Questions

How did fabric merchants use magnifying lenses? How many men were convicted of homosexuality, and were sent to concentration camps? GIVING BRAINLIEST AND EXTRA POINTS!!!An ___________ is a trait or characteristic that helps a living thing, or organism, survive. These characteristics can be passed on from parent to offspring. They are passed on until most of the animals in the species have the helpful trait. Animals can also develop adaptations based on how they interact with the environment. A rectangle has a length of 3 units and a width ofy units. Write an expression for the area of thisrectangle. HELP................!!!!!!!! The Finishing Department had 6,800 incomplete units in its beginning Work-in-Process Inventory which were 100% complete as to materials and 40% complete as to conversion costs. 18,600 units were received from the previous department. The ending Work-in-Process Inventory consisted of 3,800 units which were 50% complete as to materials and 40% complete as to conversion costs. The Finishing Department uses first-in, first-out (FIFO) process costing. How many units were started and completed during the period I dont understand this What is the volume of a box with 385 cubes and 11/3 x 5/3 x 7/3 Parker ran 100 meters, 6 kilometers, and 4,000 centimeters. How many meters did he run all together Approximately what is the expected dollar rate of return on euro deposits if today's exchange rate is $1.18 per euro, next year's expected exchange rate is $1.10 per euro, and the euro interest rate is 5%? 19. Determine whether the purpose of the sentence is to inform, to persuade, to entertain, or toinstruct(1 Point)Some people get "scared half to death" when a cop's red and blue lights start flashing. What happens if this occurs twicein the same day?instructinformentertainpersuade Manuel makes 8 dollars for each hour of work. Write an equation to represent his total pay p after working h hours.p and h are variables The following selected transactions were completed by Fasteners Inc. Co., a supplier of buttons and zippers for clothing:20Y3 Nov. 21. Received from McKenna Outer Wear Co., on account, a $96,000, 60-day, 3% note dated November 21 in settlement of a past due account. Dec. 31. Recorded an adjusting entry for accrued interest on the note of November 21. 20Y4 Jan. 20. Received payment of note and interest from McKenna Outer Wear Co. Required:Journalize the entries to record the transactions. solve the proportion for x. 12/x = 15/24 What emotion is expressed in the last two lines of the poem?Hope is a thing with feathers Kammys mom gave her $85 to go shopping if she spent $118 how much of her own money did curry use What purpose do you think the author intended by including the hunting scene in chapter 7 from the book lord of the flies. 24. all of the following are function of sER Except ? A. Synthesis of lipid B. Carbohydrate Metabolism C. Detoxification of drug and poisons D. Modification of protein theme of The Tree house by jaclyn einis? Which general idea best covers the specific ideas? Specific ideas : horror, shame, disgust, fear The general idea emotions. calm emotions. unpleasant emotions.