Based on the phylogenetic tree, identify approximately how many millions of years ago the earliest south Asian river dolphin evolved

Answers

Answer 1

my guess is that it is 130 Million


Related Questions

*10 POINTS* biologyyyy please helppp

Answers

Answer:

A, C, D

Explanation:

It is easier to look for which is wrong rather than checking all if they are right.

B is wrong because population A is growing exponentially and it can be inferred from the graph that it is nowhere near slowing down.

Which option best defines half-life?

Answers

Answer:

Where are the answer choice

what is the function of the seed producing in mosses plants?​

Answers

Explanation:

Ecologically, mosses break down exposed substrata, releasing nutrients for the use of more complex plants that succeed them. They also aid in soil erosion control by providing surface cover and absorbing water, and they are important in the nutrient and water economy of some vegetation types.

Infer why base substitutions in the third position are least likely to cause a change in the amino acid for which it coded.

Answers

Answer:

Because of the codon oscillation.

Explanation:

The formation of codons is susceptible to the occurrence of oscillation, which is the term that corresponds to the fact that many codons have synonyms in the third position, that is, in the third letter. For example, the codon CUA, which represents leucine, will also represent leucine if it is presented in CUU, CUC and CUG forms, due to the oscillation in the third position. This allows the tRNA to recognize any of these codons and pair with the anticodon smoothly and without errors.

First to answer 15points plus brainliest!!!!

Nuclear Energy is produced by

Answers

Answer:

Fission or the act of splitting uranium atoms

Answer:

Nucler fission

Explanation:

Clearly C and D arent correct.

In nuclear fission(A), a uranium atom(mildly radioactive) is split by a nutreon, which realeases nucler energy.

In nucler fussion(B), which only occurs in the sun and stars, two nulcei are combined to make a even bigger nuclei, this does not produce nuclear energy.

Hope this helps :)

1. All animals except sponges have , groups of cells that work together to perform a specific function. 2. All animals eat other organisms in order to gain building materials for the body. This makes them , since they obtain necessary energy and chemical building blocks from the environment. 3. One key adaptation of animals was the evolution of a(n) , a fluid-filled gap between the outer wall of the body and the outer wall of the digestive system. 4. All animals are , organisms with cells that are relatively large, complex, and contain membrane-enclosed organelles such as the nucleus. 5. Cnidarians are the only animal phylum to display , meaning that their bodies can be divided any way through the center point to yield two even halves.All other adult animals display , meaning that their bodies can only be sliced lengthwise through the midline to produce two even halves.

Answers

Answer:

1. Tissues

2. Heterotrophic

3. Body cavity

4. Eukaryotes

5. Radial symmetry; bilateral symmetry.

Explanation:

1. All animals except sponges have tissues, groups of cells that work together to perform a specific function.

Sponges are sea animals which are found attached to surfaces. They are multicellular and heterotrophic like other animals, but they lack true tissues and organs.

2. All animals eat other organisms in order to gain building materials for the body. This makes them heterotrophic, since they obtain necessary energy and chemical building blocks from the environment.

Heterotrophs are organisms that cannot manufacture their own food, but obtain it from their environment instead.

3. One key adaptation of animals was the evolution of a body cavity, a fluid-filled gap between the outer wall of the body and the outer wall of the digestive system.

A body cavity is a space found inside the body that is filled with fluid and which holds and protects internal organs. There are several cavities found in the human body and they are separated by membranes as well as many other structures.

4. All animals are eukaryotes, organisms with cells that are relatively large, complex, and contain membrane-enclosed organelles such as the nucleus.

5. Cnidarians are the only animal phylum to display radial symmetry, meaning that their bodies can be divided any way through the center point to yield two even halves.All other adult animals display bilateral symmetry, meaning that their bodies can only be sliced lengthwise through the midline to produce two even halves.

what is the function of the periwinkle leaf?​

Answers

Answer:

periwinkle is used for “brain health” (increasing blood circulation in the brain, supporting brain metabolism, increasing mental productivity of leef

What do the circles represent

Answers

Answer:

nothingkekwowkwo

Explanation:

nothingsjejskskwko

Don’t knowaguabwgwuebevbw

I think it’s tree am I right?

Answers

Answer:

mm yes tre.........

Explanation:

Please help <3 Will give brainliest

Answers

Answer:

blood group

Explanation:

3.2 State whether each of the phrases applies to A only, B only,
both A and B or none. Write down A only, B only, both A and B
or 'none' next to the question number.
For example, 3.2.6 None

3.2.1 Mitosis
A cloning
B chromosomes

3.2.2 Chromosome
A chromatid
B spindle fibre

3.2.3 Phases in the cell cycle
A interphase
B mitosis

3.2.4 Tumour
A benign
B malignant

3.2.5 Bone cancer
A carcinoma
B leukaemia​

Answers

Answer:

3.2.1. A only

3.2.2. A only

3.2.3. A and B

3.2.4. A and B

3.2.5. None

Explanation:

- 3.2.1

Mitosis is a kind of cellular division that produces two genetically identical daughter cells. Whereas, cloning is a technique used to create identical cells. This means that mitosis applies to cloning.

- 3.2.2

A chromatid is a half of a replicated chromosome. Together, a replicated chromosome is called SISTER CHROMATIDS. One of them is called a Chromatid. Spindle fibre is a structure involved with the division of the genetic material during cell division.

- 3.2.3

The cell cycle consists of two stages interphase and mitotic phase. Hence, interphase and mitosis are part of the cell cycle.

- 3.2.4

A tumour is a cancerous mass of cells. Tumour can either be BENIGN i.e. not capable of spreading to other parts or MALIGNANT i.e. capable of spreading to other parts.

- 3.2.5

Cancer is an uncontrolled division of cells and can occur in virtually all organs of the body. Bone cancer is a type of cancer that affects the bone cells. However, carcinoma (starts in the skin) and leukaemia (blood cancer) are unrelated to bone cancer.

A chromosomal mutation is best described as-
A. Mutations that involve changes in the number or structure of chromosomes in a cell or organism.
B. Changes in the “reading section” of a protein code frame that affect the subsequent amino acids.
C. An amino acid substitution that changes all of the subsequent protein codes on the chromosome.
D.a change in the genetic make-up of an organism that causes speciation to occur in a population.

Answers

Answer:

A

Explanation:

chromosomal mutation definition. A mutation involving a long segment of DNA. These mutations can involve deletions, insertions, or inversions of sections of DNA. In some cases, deleted sections may attach to other chromosomes, disrupting both the chromosomes that loses the DNA and the one that gains it.

B
Name the part of the the brain labeled "C".
A)
frontal lobe
B)
temporal lobe
C
parietal lobe
D)
medulla oblongata

Answers

Answer:

B- Temporal lobe

Explanation:

The temporal lobe is one of the four significant flaps of the cerebral cortex. It is the lower flap of the cortex, sitting near ear level inside the skull. The fleeting flap is generally liable for making and protecting both cognizant and long haul memory.

brainliest?

ANSWER:

B- temporal lobe

WHY:

D is frontal
C is temporal
E is occipital
B is the brain stem
A is cerebellum

I studied this for sports medicine


MARK ME BRAINLIEST PLEASE

What’s the answer please??!!!

Answers

They share common ancestry

Answer:

A

Explanation:

Almost all embryos of vertabrites look the same at early embryo stages, even humans to other organisms. This is because they all have a common ancestory, adn orginated from a organism with an embryo that looked like this.

It is clear it cannot be the other answers for the folowing reasons:

The organisms will definatly not look the same, considering they are birds and reptiles. The 2nd answer speaking of geography isnt very accurate, and cannot be determined because as I said above, any vertibrate embro looks very similar, and close geopgraphy isnt what made them look similar.

Again, all vertabrites have the same embryos, and that is a phylum. Not a genus. There are many genus in a phylum, and the ecaxt one cannot be determines.

As I said above, HUMANS look simiar to BIRDS and REPTILES, but clearly grow to be much different.

Answer:

A: the organisms share a common ancestory

These thoughs and facts hopefully answer you question, hope it helps!

Niko was hiking in the mountains when he found a spring or a place where water naturally flows out of the ground. Where did the water in the spring come from?

A. It is water that was squeezed out of an igneous rock when the rock changed.

B. It is water that was produced by organisms living underground.

C. It is precipitation that fell on the ground and seeped down to a layer of rock.

D. It is water that condensed underground when the soil became colder during the winter.

Answers

C. It is precipitation that fell on the ground and seeped down to a layer of rock.

The category of organisms in a water ecosystem that includes the larger,
active swimmers is called _____.

Answers

Answer:

The category of organisms in a water ecosystem that includes the larger,

active swimmers is called Nekton

which is not an example of capillary actions ?

A. a paper towel absorbing a spill .

B. plant absorbing CO2 through Stomata .

C. a mop absorbing water from a puddle from the ground.

Help Asap!

Answers

Answer:

B

Explanation:

capillary actions are related with water movement. co2 is a gas absorbed.

Which statement describes only biotic factors in a forest ecosystem?

Answers

Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks and water.

Answer:

A bird and a squirrel are living in a tree.

Explanation:

Competition for food is an example of a biotic factor in an ecosystem. A red squirrel and a grey squirrel living in the same habitat will compete for the same food source. 2. Predator-prey relationships are examples of biotic factors.

Tadpoles must undergo a major metamorphosis to become frogs. This change includes reabsorption of the tail, growth of limbs, calcification of the skeleton, increase in rhodopsin in the eye, development of lungs, change in hemoglobin structure, and reformation of the gut from the long gut of an herbivore to the short gut of a carnivore. Amazingly, all of these changes are induced by triiodothyronine. What is the most likely explanation for such a wide array of effects of triiodothyronine

Answers

Answer:

The most likely explanation is that different body parts have different tissues which in turn have different thyroxine receptors. This leads to different signal transduction pathways.

Explanation:

The triiodothyronine absorption through different tissues lead to different signal transduction pathways.

What colour does bicarbonate indicator change to in presence of oxygen and carbondioxide​

Answers

Answer:yellow

Explanation:

Hydrogen bicarbonate is an indicator that is use to test the amount of carbondioxide and oxygen in the aquatic body. It's main color is red.

It normally turn to yellow when there is more carbondioxide present in the atmosphere of the water body. It turn yellow when respiration is much because carbondioxide is exhaled out.

Please fill out the Punnett Square with the correct Alleles, then answer the questions.

Answers

Bb    |      bb

Bb    |   bb

The chance of having recessive traits is 50%

The chance of having dominant traits is 50%

Hope this helps ! :)

Bb. bb
Bb. bb.

Theres a 50% chance for a recessive and dominant trait

Are humans an example of a placental mammal? Justify

Answers

Answer: Humans, of course, are also placental mammals

Explanation:  Placental mammals include such diverse forms. They are also some of the most familiar organisms to us, including pets such as dogs and cats, as well as many farm and work animals, such as sheep, cattle, and horses. Sense they are most familiar to us human beings are also placental mammals.

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Answers

Answer:

Reduction of fossil fuels.

Explanation:

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. Source: Wikipedia

Answer:

the answer would be a)

Explanation:

write the general characteristics of bryophytes?​

Answers

Explanation:

Vascular tissues are absent.

-Sex organs are multicellular and jacketed.

-Archegonium is flask shaped with tubular neck and a swollen venter. ...

-Sexual reproduction is of oogamous type. .

-The sporophyte of sporogonium is parasitic over the gametopphyte.

Answer:

Plants occur in damp and shaded areas.

The plant body is thallus like, i.e. prostrate or erect. It is attached to the substratum by rhizoids, which are unicellular or multicellular. They have a root-like, stem-like and leaf-like structure and lack true vegetative structure.

Is the following sentence true or false? During meiosis, the two alleles for each gene stay together.

Answers

Answer:

False

Explanation:

During meiosis, a cell goes from a diploid stage to a haploid stage. So no, the alleles do not stay together.

The Meiosisi is basically a process by which the number of chromosomes is reduced by half to form a sex cell.

Galaxies that are moving away from earth are?

Answers

Answer:

The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — the Andromeda Galaxy and the Milky Way, for example, are on a collision course — there is an overall phenomenon of redshift happening as the universe gets bigger.

Sorry someone flagged this

Which of the following is/are parts of the Cell Theory? explantion

Answers

Answer:

All organisms are composed of one or more cells. Cells come from other cells by division. Cells are the smallest living things. Eukaryotic cells have evolved from prokaryotic cells.

Explanation:

how do sandy beaches from????

Answers

Explanation:

waves pounding pebbles into smaller and smaller pieces

Answer:

The answer is D :)

Explanation: have a great day and be safe

What cycle is used to make fats and oils

Answers

Answer:

citric acid cycle

Explanation:

To give just one example, acetyl CoA (mentioned above) that's produced in cellular respiration can be diverted from the citric acid cycle and used to build the lipid cholesterol. Cholesterol forms the backbone of the steroid hormones in our bodies, such as testosterone and estrogens.

Mitochondrial DNA is passed directly from father to child
true or false​

Answers

Hi!
It’s false
Hope this helps!!
false XXXXJSJSUHAYBAYNAUNWUEHYW
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Benji just bought a new television for $382.00. He made a down payment of $70.00 and will pay monthly payments of $26.00 until it is paid off. How many months will Benji be paying? (Assume that Benji pays no interest.) Name five behaviors that animals must use to survive. Three fish are swimming at three different elevations: -1 foot, -5 feet, and - 8 feet. Which fish is closest to the surface of the water? How do you know? There were 120 water sports rentals available at the Little River Sports Shop. 20% of the rentals were kayaks. How many of the rentals were kayaks? Chemostat culture with protozoa Tetrahymena thermophila protozoa have a minimum doubling time of 6.5 hours when grown using bacteria as the limiting substrate. The yield of protozoal biomass is 0.33 g per g of bacteria and the substrate constant is 12 mg l1 . The protozoa are cultured at steady state in a chemostat using a feed stream containing 10 g l1 of nonviable bacteria. (a) What is the maximum dilution rate for operation of the chemostat African Americans of the 1800s were described this way: That blacks were neither humbled nor crushed by prejudice and discrimination was evidence of their courage and spirit.Write a short essay about this idea. In your essay, give four examples from the lesson that support or provide evidence of this description of the endurance of African Americans. A firm that is committed to keeping manufacturing facilities in only the home country (and not developing multiple production sites in a variety of countries) can Multiple Choice not mitigate the effects of exchange rate changes. lessen the effect of exchange rate changes by pursuing a strategy of diversifying the markets in which the firm's products are sold. lessen the effect of exchange rate changes by pursuing a strategy of selling commodity products without product differentiation. pursue a strategy of increasing its products price elasticity of demand. A wave travels at a constant speed.How does the frequency change if the wavelength is reduced by a factor of 3 The frequency decreases by a factor of 3 the frequency increases by a factor of 3 the frequency increases by a factor of 9 the frequency does not change (-6, -7), (0, 0)The distance between the two points isunits. Need help, I will give cake :))+ branliest The ___________ step in the critique process involves giving a technical description of a piece of art.Group of answer choicesdescribeanalyzeinterpretevaluate which three slaves sold in the slave market at montgomery alabama likely to have come Which group of soldiers fought valiantly at the Battle of Olustee?Group of answer choices53rd regiment54th regiment64th regiment63rd regiment what is the preasure in atmospheres of 20 mol of nitrogen gas in 36.2 L cylinder at 25 degrees C? Mr. Perrinss class sold packs of peanut butter cookies for $2.35 each and Mr. Woodss class sold bottles of milk for $1.34 each. Together, the classes sold 73 items and earned $141.25 for their school. Write and solve a system of equations that model the problem. Show all your work. (a) Which class earned more money? (b) How much more money did that class earn? DO NOT SEND ME PDFS OR LINKS WIL REPORT ANSWER CORRECTLY FOR BRAINLIESTWhich graph is misleading? Explain your answer with at least three complete sentences. 1. Explain the risk factor approach and the meaning of the statistic "male smokers have a relative risk of about 23.3 for dying of lung cancer". What in your opinion is the most cruel thing that has happen the world?ASAP FOR SCHOOL If the side length of a square is 4 inches, its area is __ square inches and its priemeter is __ inches. If x= -4, find the value of x-5+6.