How would Darwin’s explanation of long necks in giraffes differ from Jean Baptiste Lamarck’s explanation of the same trait?

Answers

Answer 1
According to Darwin's theory, giraffes that happened to have slightly longer necks and limbs would have a better chance of securing food and thus be able to have more offspring -- the "select" who survive. Conversely, in Lamarck's view, a structure or organ would shrink or disappear if used less or not at all.

Related Questions

Help this is really important!

Answers

Answer:

C) They are both involved in cell division

Explanation:

yup

your answer is C :)))))

I NEED THESE ANSWERED PLEASE
What causes the flu?
What are common symptoms of the flu and what are complications that arise from the disease?
Do you think people can misdiagnose themselves with the flu? Explain your reasoning.
How is flu season defined? What are the criteria for this definition?
How does the flu affect businesses and governments? Could it affect residents’ access to certain resources?

Answers

Explanation:

1) The flu is caused by influenza viruses that infect the and people assume it's the flu because nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.

2)

Difficulty breathing or shortness of breath.Persistent pain or pressure in the chest or abdomen.Persistent dizziness, confusion, inability to arouse.Seizures.Not urinating.Severe muscle pain.Severe weakness or unsteadiness.Fever or cough that improve but then return or worsen.

3) yes because they don't always know signals can have symptoms as others and they assume it as flu because it is a known sickness

4)The flu, also known as the influenza virus, is diagnosed year-round in the United States. Fall and winter seasons are when the greatest impact is usually seen and, therefore, is considered the "flu season." Influenza activity has a period of greatest activity between December and February, but the activity can last until May.

Every year at the beginning of the fall season, people are encouraged to get a flu shot.

CDC data on influenza vaccine:

• 116 million doses of influenza vaccines have been distributed.

CDC

(Centers for Disease Control and Prevention) recommends that all persons 6 months and older receive the influenza vaccine at the end of October.

• Influenza vaccination offers important benefits

5) in the attached file

A flu is a common viral infection that can be deadly if not treated on time. This is caused by the influenza virus. The common symptoms include fever, chills, muscle aches, cough, fatigue and runny nose.

What is Flu?

Flu is a viral infection caused by the Influenza virus. This is a communicable disease. The flu virus attacks the lungs, nose and throat. The respiratory system is weakened. People who have a weak immune system or have a chronic disease are more prone to flu infection.

The most common symptoms include chills, fever, headache, muscle aches, runny nose, cough and fatigue. People generally diagnose flu when they are having respiratory illness which doesn't always supposed to be flu. This misdiagnosis can complicate the situation which makes the treatment of infection difficult.

Flu season is an annually recurring period. The season occurs when its half cold in each hemisphere.

Flu is a communicable disease which lasts for approximately two-three days. During this period, an affected person is advised to stay away from other healthy people which interferes with the business and government work. Also, the residents are not advised to go in public which affects their access to certain resources.

Learn more about Flu here:

https://brainly.com/question/14995334

#SPJ2

Scientists have determined that the shape of the DNA molecule is?

Answers

Answer:

Double helix

Explanation:

Answer:

it is Double helix that's what we wrote today

During which season does the rabbit population increase most rapidly?
A. Spring
B. Summer
C. Fall
D. Winter

Answers

Answer:

a

Explanation:

how does bacteria become immune to antibiotics? (short answer)

Answers

Bacteria develop resistance mechanisms by using instructions provided by their DNA.

Which of the following is linked to an increase in brain size and intelligence in hominids?

options:

Increased social interactions

Development of more complex and tools and language

Decreased use of tools and language

Increased speed and strength

Answers

Answer: b

Explanation: I took the test

helpp a biology quiz

Answers

(M)etaphase cuz the chromosomes are lined up in the (M)iddle
Metaphase is the right answer

NEED HELP PLEASE as soon as possible!!!!!!!!!!
Which statement best explains the genetic variation that results from sexual reproduction?
A. Each chromosome contains many different genes.
B. Offspring receive genes that are exactly the same as one parent's genes
C. Offspring receive a mix of genes from two different parents.
D. Each chromosome contains many copies of the same gene.​

Answers

Answer:

C. Offspring receive a mix of genes from two different parents.

Explanation:

can anyone help please?

Answers

The answer would be 29% because the ratio of guanine to cytosine is 1:1

Would a doctor prescribe an antibiotic if you have a virus?
A
Yes
antibiotics prevent viruses from replicating, so they eventually die out.
B
Yes - antibiotics effectively target and kill viruses and bacteria.
с
No
most viruses are too powerful to be killed by an antibiotic.
D
No - antibiotics are designed to work on bacteria, not viruses.

Answers

it’s D
just remember antiBiotics are for Bacteria

which of the following cell types would have full complementary number of chromosomes?
a. haploid cell
b.somatic cell
c.gamete
d. sperm

Answers

It’s a Haploid cell

What is the advantage to having two different protein-digesting enzymes, rather than just one?

Answers

Increased efficiency

Which hormone causes the endometrial layer inside the uterus to thicken?

A. luteinizing hormone

B. estrogen

C. testosterone

D. progesterone

I’ll give brainiest:)

Answers

Answer:B

Explanation:Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy. In the middle of the cycle, an egg is released from one of the ovaries (ovulation). Following ovulation, levels of another hormone called progesterone begin to increase.

What has to happen befor a cell can divide?
A: DNA has to double
B: DNA has to unwind
C: Chromosomes need to form
D: None of the above

Answers

a

Hope this helps!!!:)

Answer:

A: DNA has to double

Explanation:

In the process of every cell division, the cell must double "replicate" its  chromosomal DNA in the process.

Read each of the statements that describe the function of a cell cycle regulator. Then drag each sentence into the correct category.

regulates checkpoints

speeds up or slows down

stops cell cycle

makes sure chromosomes

have replicated

cell cycle

Internal regulators

External regulators

Answers

Answer:

Regulates Checkpoints - growth factor and damage to DNA

Speeds up or slows down - External regulators

Stops cell cycle - When cells are growing and dividing

Make sure chromosomes have replicated - Internal regulators

Explanation:

Cell cycle is the process by which cell development happens. The body functions has the ability to control the growth of cells. When the body looses the ability to control and regulate the cell growth cycle the body is in a state of disease called cancer.

Answer:

Internal Regulators:

Regulates CheckpointsMakes sure Chromosomes have Replicated

External Regulators:

Stops Cell CycleSpeeds Up or Slows down Cell Cycle

Hope this helps

-Greg

Identify the chromatids and the centromere of a chromosome.

Answers

Answer:

Chromatid refers to one half of the chromosome. Centromeres are the center of the chromosomes, where spindles attach during mitosis.

If an isotope's half life is 2 months, and it starts with 240 grams. How many half life's does it take to only have 15 grams left?
A. 2
B. 4
C. 6

Answers

Answer:

2

Explanation:

A room has a stereo with two speakers. At one location in the room, the sound from the speakers is very quiet. What is causing this effect? A. Constructive interference B. Destructive refraction OC. Constructive refraction D. Destructive interference

Answers

I believe it’s d. Destructive interference

Because:
When waves are interfering with each other destructively, the sound is louder in some places and softer in other places and wave interaction is called inference

Which of the following is NOT a reaction of the
parasympathetic nervous system?
A. Decreased respiration
B. Decreased heart rate
C. Increased blood flow to digestive tract
D. Decreased saliva production

Answers

Answer:

D

Explanation:

D, or decreased saliva production is not a reaction of the parasympathetic nervous system (PSNS) since the PSNS actually increases/causes salivation which helps you digest your food.

As a tip, I usually associate the PSNS with a state of rest/restful conditions, as opposed to the sympathetic nervous system which is the opposite and is associated with stress and high-pressure conditions (like fight or flight).

Hope this helps!! :)

Answer:

D is the correct answer got it right on my assignment!!

Explanation:

Hey! real question for the women and girls,
anyone know how to get rid of strong fishy oder "down there"? My little sister is becoming a woman and I never had a big problem with the oder but she does sadly! She needs some help, I know tea used as a wash and probiotics help, but anything else? :D thank you ladies! And some points for ya'll

Answers

Answer: it helps to get soaps and washes that are specificly for that area also change in diet, like drink more water and eat more vegatables

Explanation:

Describe two problems that occur when a human population grows.

Answers

Answer:

Explanation:

The exponential growth of the human population could lead to food shortages, global warming, and other issues of resource scarcity.

Answer:

Explanation:

Unsustainable population growth and lack of access to reproductive health care also puts pressure on human communities, exacerbating food and water shortages, reducing resilience in the face of climate change, and making it harder for the most vulnerable communities to rise out of intergenerational poverty.

Complete the following sentence.
A compound fruit is made up of each egg cell in a single ovary of a single flour; by extension, when an aggregate fruit develops from many flowers, the fruit develops around each ___.

Answers

Answer:

B and a good time to get answer of your questions and answers to your questions and answers to your questions and answers to your questions and answers to your questions and answers

Answer: Ovary

Explanation:

Explain TWO reasons why it is important to develop alternatives to fossil fuel
energy sources,

Answers

1. Fossil fuels are damaging to the environment. They create large amounts of carbon dioxide when burned thus increasing carbon emissions.
2. They are not an unlimited resource and could run out at any minute. If they run out and we don’t have an alternative, we could be in a world of hurt.

Which of the following molecules is synthesized at specific times during the cell cycle and
forms an active complex with a kinase?

A)PDGF
B)MPF
C)Cdk
D)cyclin

Answers

Answer:

D. Cyclin

Explanation:

Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.

Cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase.

The phases of the cell cycle are directed by a highly complex and finely regulated protein interaction network.

Among these proteins, the phosphorylating enzymes called cyclin-dependent kinases (CDKs) and their activating subunits the cyclins (A, B, D and E) stand out.

The cyclin-dependent kinases undergo phosphorylation on their amino acids (serines and threonines).

The cyclins (so called because they appear and disappear throughout the cycle), bind to the CDKs and control their phosphorylation reactions.

The cyclic assembly between these two compounds, cyclins and CDKs, their activation and disassembly are the central processes that direct the cell cycle.

Therefore, we can conclude that cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase..

Learn more here: https://brainly.com/question/1158654

Briefly explain transcription and translation using the following terms: gene, RNA polymerase, tRNA, mRNA, ribosome, nucleus, codon.

Answers

Answer:

take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA. ... During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines

Explanation:

which translates mRNA. tRNA is the link between the two other types of RNA.

Как в нашей стране организована автоматизированная система оповещения населения о возникновении чрезвычайной ситуации?

Answers

Долбаеб, это американский сайт, а не русский

PLEASE HELP I WILL GIVE BRAINLIST TO FIRST PERSON WHO ANSWERS!!!
Any nucleotide contains each of the following except a?
a. nitrogenous base c. sugar b. pyrimidine d. phosphate group

Answers

Explanation:

it should be sugar for what nucleotides contains

PLEASEEE EHELP THANKS! HAS TO BE CORRECT!
Analyze the example of gene expression of the bacteria below:

In this example, what would cause the genes to be expressed?

An operon that is turned off
Polymerase being blocked from bonding to the DNA
The presence of an active repressor
A repressor that is unable to bond to the DNA

Answers

Answer:

This question is incomplete as it lacks the image. The answer is:

D. A repressor that is unable to bond to the DNA

Explanation:

The expression of a gene in a prokaryote like bacteria is regulated at the transcription level. Normally, a Gene is expressed by first undergoing transcription from DNA to mRNA with the aid of an enzyme called RNA polymerase.

However, a protein called REGULATORY PROTEIN which serves as a repressor inhibits the binding of RNA polymerase to the DNA sequence. According to this question, the gene will only be expressed if the repressor is unable to bond to the DNA, hence, not being able to prevent transcription.

Can you answer 5 and 6?

Answers

5) grasses
6) D - snakes are the most plentiful in this food chain

Can rocks melt from heat?
A. Yes
B. No

Answers

Answer:

A

Explanation:

They become magma

yes, usually really high levels of heat, magma and much others
Other Questions
Y= -4+9A.(3,-3)B.(2,3)C.(0,9)D.(2,1)E.(4,5) It took only a short time forRome to become a successfulcivilization.Is this true or false Basil has five numbered cards.Two of the numbers are hidden. 4 9 9 ? ? 8The mode of the five numbers is 8. The mean of the five numbers is 6 c) Work out the two hidden numbers. what states border mexico?what states border canada? What is the area of this figure?Enter your answer in the box. What is the area of this shape Graph the equation using the slope and y-intercept y = 2x - 4 Use the greatest common factor and the distributive property to write equivalent expressions in factored form.13ab + 15ab = How did the Greek city-states work together to win the Persian War? (G4.4.2)Question 6 options:The Egyptians traded silk with the Greek city-states.The Athenians attack Persia, taking half of the empire.Spartan soldiers attacked the Athenians.Spartan soldiers and the Athenian navy fought off the Persian Empire. Jolianne worked half as many hours as Andrew. Jolianne makes $10 per hour and has saved $27. Andrew makes $8 per hour and has no money saved. After getting paid, they have the same amount of money.Andrew claims that only his table and equation are correct, but Jolianne claims that both tables and equations are valid. Which statement regarding their claims is true?A.) Andrew is correct because t cannot be used to represent the number of hours Jolianne worked.B.) Andrew is correct because Jolianne worked half as many hours as he did and he did not work twice as many hours as she did.C.) Jolianne is correct because if one lets t = hours Andrew worked, then his equation is valid. If one lets t = hours Jolianne worked, then Andrew worked twice as many so her equation is valid, too.D.) Jolianne is correct because when solving t in her equation, t = hours Jolianne worked, and when solving for t in Andrews equation, t = hours Jolianne worked so they are equal. help me with this, please!!! 100 POINTS PLEASE ANSWER- the answer is not c or d CONFIRMEDThe diagram illustrates the process of developing genetically modified corn.What occurs at step 3 in the diagram?The restriction enzymes cut the isolated DNA into fragments.The gene of interest is inserted into an expression cassette.The recombinant DNA is inserted into the host cell nucleus via a vector.The expression cassette is inserted into a plasmid for cloning. Noah and his best friend Carlos are walking to the lunchroom when the school bully, John, approaches Carlos and asks him for his homework. Carlos replies he doesn't have it, and John gets mad and threatens him to beat him up. Everyone in the hallway stops to see what is happening, but no one wants to get in Carlos's way. Noah finally walks up to Carlos and states. "Leave my friend alone. He hasn't done anything to you." What type of person is Noah? Answers for world history solve the following equation for a a-32=47 u get LOTS OF POINTS IF YOU ANSWER THIS.2+2=? If 91 is 10% of a number, what is that number? * Why does the border between light and dark on the Moon change location? Cynthia invests some money in a bank which pays5% compound interest per year.She wants it to be worth over 8000 at the end of 3years.What is the smallest amount, to the nearest pound, she can invest? Which sets of ordered pairs represent functions from A to B? (Select all that apply.)A = {0, 1, 2, 3} and B = {2, 1, 0, 1, 2}A. {(0, 2), (3, 0), (1, 1)}B. {(0, 0), (1, 0), (2, 0), (3, 0)}C. {(0, 1), (2, 2), (1, 2), (3, 0), (1, 1)}D. {(0, 1), (1, 2), (2, 0), (3, 2)}