What’s this please help

A likely reason why some adult chordates do not exhibit all the characteristic features of the phylum Chordata, is that some features are present during development but are subsequently lost or become another structure. (option 2)

The correct answer is A hydro-power energy.

This type of energy is a renewable energy. A hydropower plant is located always in a river because they are used to transform the kinetic energy of the water and or its gravitational potential energy into power, generating electricity. This process occurs in a turbine.

The cerebral hemisphere has four lobes, so the above statement is false.

The Cerebral cortex also known as gray matter which comprises the brain’s outermost layer of nerve cell tissue and has a wrinkled appearance from its many folds and grooves. These folds have many groups called sulci and raised areas are called gyri.

These folds add to the surface area of cerebral cortex which allows large amount of information to be processed by Nerve cells. Cerebral cortex makes about half of the total brain mass. It consists of 6 layers which contains approximately 14 to 16 billion Nerve cells, thickness of about 0. 2 mm to 4 mm.

It is divided into four lobes. They are Frontal, Parietal, Temporal and Occipital which is responsible for processing different types of information.

It consist of nerve cell bodies which include end portion of Nerve cells called dendrites that's why it is also called gray matter. These dendrites receive chemical message from another cell cerebral cortex. It is gray in colour because lack of fatty covering of nerve which is called my myelin.

Thus, the cerebral hemisphere has four lobes, so the above statement is false.

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Answer: False

Explanation: Having an autoimmune disease will not necessarily lead to death, many of them have a treatment which allows the patient to maintain his/her quality of life.

Answer:

Top 3 cancers for 5 years survival are:

1. Melanoma

2.Hodgkins lymphoma

3. Breast cancer

Bottom 3 cancers for 5 years survival are:

1. Mesothelioma

2.pancreatic cancer

3. Brain cancer

Explanation:

Prognosis describes how serious your cancer is and your chances of survival. 5-year survival means the percentage of people who will be alive 5 years after diagnosis.

Answer:

The answer is A

Explanation:

An ecologist studies the relationship between living things and their habitats.

Answer: Gathering new evidence using new technologies or procedures most likely will lead scientists to change or improve an existing scientific theory (Option D).

Explanation:

Autotrophs are organisms that make their own food, making biomolecules using simple abiotic carbon compounds, such as carbon dioxide, and energy from light (photosynthesis) or from inorganic chemical reactions (chemosynthesis).

So, we could complete the question with "abiotic carbon compounds and light energy"

The answer is the letter A. These mutations can change the structure and function of hemoglobin.

The effect of the mutation in the hemoglobin is it altered its structure that makes

Answer: Trisomy 21

Expanation: tTe most common chromosomal anomaly in humans, affecting about 5,000 babies born each year and more than 350,000 people in the United States. Also known as Down syndrome, trisomy 21 is a genetic condition caused by an extra chromosome.

DNA replication is called semiconservative because, in each copy that is made of the DNA, one of the strands comes from the template. This means that all copies of DNA retain one strand of the original DNA (semiconservative). Therefore, the image that best illustrates DNA replication is A.

The place where a river begins is called source or headwaters, being the rivers the construction from water that comes of smaller streams that join together forming tributaries.

Answer:

Helicase

Explanation:

To begin DNA replication, unwinding enzymes called DNA helicases cause the two parent DNA strands to unwind and separate from one another.

Answer:they would turn back white

Explanation:once the soot is gone, they return to natural colour again due to camouflage

Answer: I'm im 99% sure it's C "It consists of a series of redox reactions" if it's right do you mind giving a brainliest?

The cell has several types of membrane transport alternatives, being the simple diffusion, facilitated diffusion, and active transport one of the options for the cell to exchange molecules between internal and external environment.

The types of cell transport:

1 - Simple Diffusion: is a process that does not need energy (passive), used to transport small and nonpolar molecules from a region of higher concentration into a region of lower concentration (in the gradient concentration direction);

2 - Facilitated Diffusion: is a process that does not need energy (passive), used to transport larger ions and polar molecules with the help of carrier proteins or pore proteins (transport proteins);

3 - Active Transport: There is two types of active transport, primary active transport is used for molecules moving against their gradient coupled to the hydrolysis of ATP, and secondary active transport is for molecules going with more molecules against their gradient. It is a process that needs energy (active) to happen, going always against the gradient of concentration of the cell.

The process is non-spontaneous and causes an increase in entropy.

The process is not automatic even thoug it involves transportation of materials in a cell. There is a change in the amount of free energy but there is entropy.

Antibiotics are substances that inhibit the growth of other organisms, such as bacteria, but also our very own cells. These molecules are naturally produced by fungi and were discovered by Fleming in 1928. The answer option that better describes this is the last one: "D. a naturally occurring substance produced by microorganisms that inhibits the growth of or kills other microorganisms".

Antibiotics are substances that inhibit the growth of other organisms, such as bacteria, but also our very own cells. These molecules are naturally produced by fungi and were discovered by Fleming in 1928. The answer option that better describes this is the last one: "D. a naturally occurring substance produced by microorganisms that inhibits the growth of or kills other microorganisms".

For the first and second question we have:

Squid eats: Krill

Blue whale eats: Krill

Seal eats: Krill, Squid, Penguins (Only leopard seals)

Krill eats: Zooplankton (and phytoplankton)

Penguin eats: Krill, squids

Zooplankton eats: no one (in the picture, but they eat phytoplankton)

For the third question: Bacteria enter as decomposers in the food web.

Finally, for the fourth question we have:

Producers: Phytoplankton

Consumers: squids, blue whale, seal, krill, penguin and zooplankton

Decomposer: Bacteria

Plants with chloroplasts carrying out Calvin cycle but unable to carry out light-dependent reactions could not carry out photosynthesis because to produce sugars, the light dependent reactions are essential in order to produce ATP and NADPH.

Calvin cycle is the light-independent reaction that is performed with the help of products from light dependent reactions. The Calvin cycle is accomplished in three steps: Carbon fixation, reduction and regeneration. The product of Calvin cycle is triose phosphate which is further used in glucose production.

Light dependent reactions are those that involved in the production of ATP and NADPH through a series of electron transporters. These ATP and NADPH are therefore used for synthesis of glucose.

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Earth rotate in an orbit around the sun. It takes 365 days, 6 hours, 9 minutes for the earth to complete its revolution around the sun. Its directional rotation to the sun is counterclockwise. Leap year is scheduled on the 6 hours, 9 minutes which is an additional 24 hour every fourth year.

Answer - True

The potential energy is the energy that depends upon relative position or various part of a system and the potential charge that a molecule have. The molecules of ATP, nitrogen, and glucose have high potential energy, as well as the ion gradient in a cell membrane, however the concentration gradient does not require neregy input, since the energy stored in it is the one used to balance the concentrations.

Answer:

I think Andes

Solution:

The three-domain system is a biological classification introduced by Carl Woese et al (Fox). in the year 1990. In this classification, the cellular life forms are divided into the following 3 domains;

1. Archaea,

2. Bacteria and

3. Eukaryotes.

So that, we can conclude that the correct answer is:

C) WOESE AND FOX.

Answer:

The nervous system transmits signals between the brain and the rest of the body, including internal organs.

Explanation:

The nervous system's activity controls the ability to move, breathe, see, think, and more.

Smooth muscles

This type of muscle comprises smooth muscle fibers that correspond to uninucleate cells, thin and pointed at the ends. This muscle forms the contractile portion of the walls of various organs such as the digestive tube and blood vessels, which is why it is characterized by involuntary contraction (option b).

Step 1:

The process of DNA transcription occurs from the 5' to 3' being the DNA sequence in the correct order for transcription as follow:

5' TAT GGT AGC GCT AGG ATT TAC ATA AAA TAG CCC CAT 3'

Step 2:

Resulting in the mRNA:

5' AUA CCA UCG CGA UCC UAA AUG UAU UUU AUC GGG GUA 3'

- Being the nucleotide thymine replaced by uracil in the formation of the RNA strand.

Step 3:

The codons sequence that form proline and tyrosine are:

Proline: CCA;

Tyrosine: UAU.

When a mother teaches their children something, the children themselves are learning something that will become natural later on in their lifespan. The mother teaches their offspring in order to allow their offspring to know what to do and how to survive.

When a mother is teaching her offspring, it is called imprinting. The mother is teaching, or printing in the children's mind on what to do.

The fluorescence microscope differs from the compound light, and transmitted light, not so much because of the structure, but instead because of how light is used to generate an image/ see the sample.

In the fluorescence microscope, the light does not go through the sample per se, instead, a filter is needed, it works with a higher wavelength, in this case, the light rays go to the sample and excite the species marked with the fluorescence substance, that is to say, the sample must be previously treated so it can absorb light and re-emitted as fluorescence (electromagnetic radiation) therefore creating an image, of light. This is possible due to the proprieties of some molecules, such as fluorochromes.