The heart is one of the first parts of the embryo to develop. What part of the stem cells provides instructions for building the heart?

Answer:

Codominance

Example:

A red and white spotted rose is an example of codominance while a pink rose when crossed with a red and white rose is an example of incomplete dominance.

Explanation:

A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony

I believe it's (C). A is DNA which is not enclosed in a nucleus ,as in prokaryotic cells

Answer:

Los hongos son microorganismos eucariontes, tanto uni como pluricelulares-heterótrofos.

Answer:

Most humans have 46 chromosomes of approximately the same size and shape. The only major difference between different people's chromosomes can be found in the sex chromosomes. ... A karyotype is a picture showing a cell's chromosomes grouped together in pairs.

Explanation:

Answer:

the rhythm of heart contractions.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

An electrocardiogram (ECG) provides information about the rhythm of heart contractions.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

Answer:

Explanation:

Some plants (flowers or leaves or both) follow the sun as it arcs across the sky each day; sunflowers (Figure below) are a well-known example. This behavior is misleadingly called heliotropism. Helio- does refer to the sun, but a tropism implies growth in a certain direction, and heliotropism does not involve growth.

One example is hydrotropism.

If you pour water into soil, a plant's roots will grow towards the water.

Answer:

Receives sperm from the seminiferous tubules.

Explanation:

The rete testis is a set of tubules that transport the sperms from the straight seminiferous tubules,  the last portion of the seminiferous tubules, to the efferent ducts. Then, the sperms go to the epididymis conduct. From there, they go to the deferent conduct, then to the ejaculatory duct, and lastly to the urethra.

Antinuclear energy or movement, are the social movement opposed to the production of nuclear weapons and the generation of electricity by nuclear power plants.

In a population with long fur, there will be more guinea pigs than short fur in the given scenario.

A trait, as it relates to genetics, is a unique feature of an individual.

If having long fur helps a guinea pig survive, we can expect the long-furred trait to become more common in the population as it evolves.

This is because guinea pigs with long fur would have an advantage in colder environments, allowing them to retain body heat more effectively and survive longer.

As a result, longer-furred guinea pigs are more likely to survive and reproduce, passing on their long-furred trait to their offspring.

As this process continues over many generations, the proportion of guinea pigs with long fur in the population will increase, while the proportion with short fur will decrease.

Thus, this can be expected to see change in the population as it evolves.

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Answer: White blood cells are components of blood that help to fight infection, and are a part of the immune system. They are also known as leukocytes. There are not as many white blood cells as there are red blood cells.

Explanation: Hope this helps!

Answer:

Jacksom you wanna zo.o.m?

~Janiyha

Answer:

Explanation:

A completely shaded circle or square indicates that a person expresses the trait. A circle or square that is not shaded indicates that a person neither expresses the trait nor is a carrier of the trait.

hope this helps

have a good day :)

Answer:

Underground stem, Aerial stem, and subaerial stem.

Explanation:

Plant stems can be Underground stem, Aerial stem, and subaerial stem due to its presence and strength of the stem. Underground stem are thick stems that run below the ground surface. e.g rhizome. Aerial stems are thin stems that can not stand erect. Examples include watermelon and strawberry etc. Subaerial stems are very thin stems that do not rise up but grow just above the ground. for example, water plantain, flowering rush etc.

i suggest saying you've been ill, or have had personal/family issues going on. if you say the second option, it is a bit invasive for the teacher to ask what so they shouldn't, but have something ready just in case. both of these have gotten me extensions before. :)

Answer:

C It belongs to the domain Eukarya

Explanation:

The cell has a nucleus and other membrane-bound organelles, unlike a prokaryote (bacteria and archea) would. Prokaryotes lack a nucleus and other membrane-bound organelles.

Prokaryotic cell is in the image

Answer:

the cell will become turgid due to tge cell wall

Explanation:

when a plant cell is placed in distilled water the water will move in the solution inside the cell is hypertonic to the distilled water serrounding the cell but it will not burst it producr turgor pressure keeping the plant upright

if a plant cell is placed in distilled water, and distilled water has a very low concentration of solutes the cell will become turgid due to the cell wall, hence option B is correct.

This is because distilled water has a very low concentration of solutes and a high concentration of solvent, making it a hypotonic solution in comparison to the intracellular environment.

To put it another way, we can say that the solute concentration of When a plant cell is placed in distilled water, it becomes turgid.

This is due to the fact that it osmotically absorbs water from the hypotonic distilled water, causing the cytoplasm of the plant cell to enlarge and firmly press up against the cell wall.

Therefore, distilled water has a very low concentration of solutes, so cells will become turgid.

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Answer:

The answer is B I belive, hope this helps

Answer:

B

Explanation:

Biodiversity basically means to increase the value or in this case, species of the mussels and clams so that they can improve water quality. Improving the water quality would be a service to the ecosystem. Therfore, I believe the answer is B.    

Explanation:

The answer is c. you should turn the knob to loosen the string.

Answer:

main topic or area of concern.

Explanation:

An information source can be defined as a system or medium through which informations, knowledge and ideas may be gotten and used by an individual. An information source can either be a primary or secondary source of information. The source options for informations are television, radio, web, newspapers, journals, magazines etc.

The four criteria used to evaluate source options are;

1. Accuracy: the user of this source of information should check if the data presented are accurate and credible. At this point, you should ensure that the informations provided are well researched and cited for verification.

2. Authority: you should endeavor to know who the author and publisher of the information source is. Also, it is important to know their qualifications.

3. Currency: it is necessary to know when the information source was created or produced by the author. Also, the user of this data should verify when it was published (in the case of a book) or if it requires an update (in the case of a website). Hence, the information source should be timely.

4. Objectivity: ensure that the source of information is unbiased, reliable, and should not only contain opinions but facts.

Basically, the subject of a source can best be described as the main topic or area of concern.

Answer:

Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. A coastal climate is usually mild. ... Farther inland, the climate is influenced by cold or hot air from the land.

Explanation:

hope this helps true

false

hope this helps

Answer:

The correct answer is - purine nitrogenous base (adenine).

Explanation:

The base given in the diagram in the image has two rings attach with the pentose sugar which is attached to the phosphate, which means it is the diagram of nucleotide. In this nucleotide base can be either purine or pyrimidine.

Pyrimidines have a single ring structure, whereas purines have 2 ring structures. Adenine and guanine are purines with two ring structures whereas cytosine and thymine are pyrimidines as they have one ring structure. Adenine contains an amine group on C6, and a double bond between N1 and C6.

Answer:

False

Explanation:

In DNA double helix molecule, there are four types of nitrogenous bases: adenine, guanine, cytosine and thymine. Purines (i.e., adenine, guanine) and pyrimidines (i.e., cytosine and thymine) hold DNA strands together via hydrogen bonds. In base pairing, guanine always pairs with cytosine through 3 hydrogen bonds, while adenine always pairs with thymine by 2 hydrogen bonds. Hydrogen bonds are a type of dipole–dipole interaction where a hydrogen atom is covalently bonded to a very electronegative atom (e.g., Nitrogen or Oxygen).

Answer:

Explanation:

64 and 15 and they add 43 and 25