a structure in a present day organism that no longer served its natural purpose

Answers

Answer 1

Answer:

Vestigial structures

Explanation:

Vestigial structuresserve little or no present purpose for an organism. The human tail, which is reduced to the tailbone during development, is one example.


Related Questions

hello help please i’ll mark brainliest!!!

Answers

Answer:

I would say the second one.

Explanation:

I'm sorry if it's wrong

Answer:

the answer is CONSISTING OF BILLIONS OF GALAXIES

*WORTH 12 POINTS * Punnett squares show all of the following except __________.

A. all of the possible traits an organism can have

B. the possible outcomes for the genotype of an offspring

C. the possible outcomes for the genotype of an offspring

D. the genotype of the father for a specific trait

Answers

Answer:

D

Explanation

Because you are attempting to find out about the offspring not the parents.


Amoebas are single-celled organisms

Answers

Explanation:

no amoebas are multi cellular

Answer:

true

...brainliest plz

please help me i don’t know nun of this

Answers

Answer:

A and A

Explanation:

Answer:

idek

Explanation:

Can someone please help me with this question?

Answers

Answer:

A

Explanation:

the body temperature drops below normal. All the other anwers the body compensates for the thing and stablizes it. The body temperature should incrase but it does not so it is not homoeostatis( which is keeping a balance).

Save
Submit
A dog, a human, and an ant all use their legs for locomotion. Which statement(s) below accurately characterize the evolutionary
relationship between these species? Select ALL that apply.

Answers

Answer: B,C, and E

Explanation:

All the following apply:-

Legs are homologues between the human and dog , but analogues in the ant.

Humans and dogs have more recent common  ancestor then the dog and the ant

DNA sequence comparison for the human and the dog will show greater homologue than between the dog and ant.

What are homologues organs?

These are the organs which are anatomically similar but differ in function.

What are analogues organs?

These are the organs which are anatomically different but functionally similar

Hence the B), C) and E) are correct option.

To know more about analogues and homologues organs here

https://brainly.com/question/27004314

#SPJ2

How does the attachment of spindle fibers differ between mitosis and meiosis I?

Answers

in mitosis, the spindle fibers start to divide. in meiosis, these fibers match back up again

In mitosis, the spindle fibers from two poles attach to each chromosome but in meiosis I, the spindle fibers from only ONE pole attaches to the chromosome.

WHAT IS MITOSIS AND MEIOSIS?

Mitosis and meiosis are two kinds of cell divisions. Mitosis involves separation of a single parent cell to produce two genetically identical cells while meiosis involves the separation of a single parent cell to produce four genetically different daughter cells.

WHAT IS SPINDLE FIBER?

Spindle fibers are structures that emanate from centrosome organelles and responsible for the separation of chromosomes during karyokinesis (nuclear division).

During the two cellular divisions (mitosis and meiosis), spindle fibers attach to the centromeres of each chromosome in order to align and eventually divide them.

However, in mitosis, spindle fibers from two opposite poles attach to each chromosome but in meiosis I, the spindle fibers from only ONE pole attaches to the chromosome.

Learn more: https://brainly.com/question/2927332

11 A scientist transfers a fragment of genetic material from one organism to
another organism of a different species. What is this process called?
F artificial selection
H genetic engineering
I asexual reproduction
G selective breeding

Answers

Answer:

H) Genteic Engineering

need help on number 6

Answers

GTC, CAC, CTG, ACT, CCT GAA, GAG


Hope this helps! Just remember the base pairs for DNA C=G and A=T

Answer:

CAG- GTG- GAC- TGA- GGA- CTT- CTC

Dna complementary strand would be

GTC- CAC- CTG- ACT- CCT- GAA- GAG

Mark brainiest, please

What's the total number of different arrangements in dna molecule with 2 base pairs?​

Answers

Answer:

23

Explanation:

23

because 23 plus 23 equal 46 which makes, you. and u get 23 from ur mom and 23 from ur dad.

Which cell organelle is used to move fluid across the outside of the cell
membrane?

A.Chloroplast

B.Cytoplasm

C.Flagella

D.Cilia

Answers

Answer:

im going to say either c or d or both

Explanation:

sorry if im wrong

Answer:

b)cytoplasm is the one that moves the fluid.

How can a change in structure to an organisms' cell negatively effect that organism?

Answers

can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). they can cause termination (death) of an organism or they can be partially lethal.

You return from lunch to science class, and there are two clear liquids on your
desk.
What is the best/safest way to determine what the liquids are?
A. Taste it
B. Touch with your bare fingers
C. Boil it
D. Drag a magnet through it

Answers

Answer:

My best guess would be boil it!

The answer is c boil it that would be the safest way

Alright, I’m begging someone for help plz

Answers

Answer is C

Hope this helps

The study of fossil succession allows
O matching of similarly-aged rocks from different outcrops
O the study of habits of extinct mammals
O recognition of the kings of the beasts in past times
O absolute dating of fossil-bearing strata

Answers

The law of faunal succession allows geologists to date the rocks they are studying. The fossils present in a rock unit may provide very useful tools for precise dating. Some species only existed for short, well-known periods in Earth history--their fossils, called index fossils, are especially helpful.

Mitochondria are cell structures that contain a small quantity of DNA.
Scientists are sequencing the DNA of one particular gene in mitochondria to
help identify different species of many animals including myriapods. The
sequences that they find are called ‘barcodes’.
(i) State the part of the cell that contains most of the DNA.
[1]
(ii) Suggest how DNA barcoding might be useful in the classification of animals,
such as myriapods.

Answers

The part of the cell that contains most of the DNA is the mitochondria.
The use of the DNA barcoding is that by comparison with a reference library such as DNA sections an individual sequence can be used to uniquely identify an organism to a species just like how a supermarket scanner uses the black stripes of the UPC barcode to identify an item

If a cell in G1 phase has 4 chromosomes, how many chromosomes will it have by the end of meiosis?​

Answers

Answer:

G1 phase (Gap 1) - Cellular contents excluding the chromosomes, are duplicated. II. S phase (DNA Synthesis) - Each of the 46 chromosomes are duplicated by the cell. III.

Explanation:

Consider that basilosaurus lived in the ocean, how has the environment of this location changed since basilosaurus lived?

Answers

Answer:

Explanation:

This is because basilosaurus lived in the aquatic region with it sturdy slippers and long body.There was change in the environment due to the shifting that occur to tectonic plates and marking a portion of the land to move to a higher altitude or block the inflow of water from being in the deserted place.

Why did the dinosaur extinction have a happy ending for us? PLEAASEE!!

Answers

Explanation:

because if they were still alive today then our species would be endangered

Organisms under the taxonomic group Animalia are
A. sometimes multicellular autotrophs.
B. sometimes unicellular heterotrophs.
c. all multicellular heterotrophs.
D. all unicellular autotrophs.

Answers

I’m sure that the answer is C ,but I’m not 100 percent sure.

Answer:

D

Explanation:

Animals:

Eukaryote

Multicellular

Consumer/Heterotroph

Sexual reproduction

Why are DNA fingerprints are more reliable than hand fingerprints in solving crimes.

Answers

dna gives an automatic trace, ur dna is original and no one else has it so it’s easier to track

People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
A
Interphase
B
Cytokinesis
C
Prophase
D
Anaphase

Answers

Answer:

I think interphase because fna synthesis happens within the s-phase of the cell cylce and 5he s phase is suring interphase and not mitosis

The phase of the cell cycle which is most affected by Cytarabine is the Interphase. Thus, the correct option is A.

What is the cell cycle?

The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next. The entire cell cycle can be divided into two phases.

The InterphaseThe M-phase (division phase).

As per the question, the drug Cytarabine inhibits the synthesis of DNA, it definitely inhibits the interphase of the cell cycle. This is because the synthesis of DNA occurs in the S-phase of the cell cycle which is a substage of the interphase.

Therefore, the interphase of the cell cycle must be affected by the drug Cytarabine. Thus, the correct option for this question is A.

To learn more about the Cell cycle, refer to the link:

https://brainly.com/question/8283140

#SPJ6

A human cell that has 46 chromosomes would have __ daughter cells that each have __ chromosomes after mitosis.

Answers

Answer:

2 daughter cells, 46 chromosomes

Explanation:

Mitosis is reproduction of somatic cells, or body cells. It's end product will always be 2 daughter cells, each identical to one another, therefore meaning, it will also have the same number of chromosomes!

Answer: one daughter cells and each have 23

Explanation: mitosis is the first then meiosis

This is due today!

Alice and her friends looked at a bunch of ladybugs. They noticed the ladybugs had different numbers of spots. They each had different ideas about why the numbers of spots were different.

This is what they said: Which person do you agree with the most?

A) Karen: I think they must all be different species of ladybugs.

B)Troy: I think each ladybug has the same number of spots as its parents.

C)Isaac: I think it depends on the age of the ladybugs. As they get older they add more spots.

D)Fred: I think it has to do with the sex of the ladybug. Males will add more spots to compete for the females.

E) Andrea: I think it depends on what each ladybug was born with.

F) Alice: I think they change their number of spots when there is a need for them to do so.

Explain your thinking. Describe your ideas about why the ladybugs look different.

Answers

I think the correct answer is F.

Explanation: Not all ladybugs are born with spots, the dots are a warning to predators that they are toxic. They get the spots when they need them to protect themselves.

need help asap
- 20 points , includes .

Answers

Answer:

D

Explanation:

Everything in there pollutes the environment.

What is the genotype ratio?

Answers

Answer:

The genotypic ratio shows the number of times a characteristic of an organism will be seen in the offspring when genes for certain traits are crossed.

Explanation: hope this helps :p

In the oldest fossils found in Bitter Springs (Cyanobacteria), why can we only find the remains of single celled organisms

Answers

Answer:

Due to presence at early days of the planet.

Explanation:

We only find the remains of single celled organisms in the oldest fossils because the single celled organisms are the organisms that were present in the early days of this planet. These single celled microbes were present about 3.7 billion years ago while on the other hand, the oldest rocks are only a little older i. e. 3.8 billion years so these single celled organisms are considered as oldest fossils on this planet.

Limiting nutrients often...

Answers

Answer:

hiii

Explanation:

I think it’s A maybe



What do you think the primary_impacts (the first and most major effects) of the earthquake would
have been?

2 Although it was not one of the most powerful earthquakes that has ever taken place; a lot of people
died in the insident in Pakistan-administered Kashmir. What features of the area do you think might
have contributed to the high death rate?
3
Many international agencies and the British military were involved in the aid effort after the
earthquake. What kind of aid and assistance do you think the British military would have been
involved in providing?

Answers

Answer:

Hi friend

I am from india!

Follow me on instàgram---> _puneet._.king

An energy pyramid shows the amount of available at each feeding level in an ecosystem.​

Answers

Answer:

I don't know about it. which subject and which class is this

Other Questions
B = I(1 + r)2(1 + r) = I(1 + r)3 What pattern is forming? PLEASE HELP THIS IS DUE IN 20 MINUTESDescribe fully the single transformation that maps shape A onto shape B.y4A21B-5 -4 -3 -2 -1 0-112 3 4X5-2-3-41Total marks: 2 PLEASE HELP ME WITH MY MATH (1-9) Which one of the following is the transport of the nutrients around the body to where they're needed? Did Egyptians mummify babies? Two grams of sodium chloride (table salt) were completely dissolved in a glass of water. How would you classify the resulting material?Group of answer choicesAs a mixture.As a salt compoundAs a pure substanceAs an element Helppppp pleaseeeee:( This looks alright.... we sit here? ( could/shall/will/would) (04.03 LC)Lee y escoge la opcin con la forma correcta del verbo en subjuntivo para completar la frase. Read and choose the option with the correct form of the subjunctive to complete thesentence.T me aconsejas que no meropa muy liviana porque hace frio. (1 point)O pongoO ponespongao pongas PLEASE HELPWhat line let's you know that Soda Pop has been affected by the news about Johnny?A."I took a deep breath and kept my mouth shut."B. "his eyes were bleak and stunned."C. "Darry was rubbing the back of my head,"D. "Serious reality has a hard time coming through" 1) opposite word in hindi heeelelppppppp it is area of a circle help me plz i will make you the brillientest What is humidity????????? what is the volume of a sphere with a diameter of 6.3 rounded to the nearest tenth What is meant by the phrase "whitewashed" when used in terms of themedia? Help please ill give brainy (7th grade math) A seedling is planted in soil that does not have any clay. What will most likely happen to the plant? PLz HELP FAST 20 points You are riding in the passenger seat of a car as it goes around a tight turn. You slide across the seat to the passenger side door. Which statement below properly describes what is happening? a. You are exerting a centripetal force on the door. b. The door and seat are exerting a centripetal force on you that balances the centrifugal force of the turn. c. The car seat exerts a centripetal force on you, but not enough to keep you in place, so the door exerts the rest. d. The centrifugal force is greater than the force of friction between you and the seat, so you slide outward. PLEASE HELP what does r equal to?