help me.............​

Answer:

Option a. "2"

Explanation:

Answer:

Mitosis requires the chromosome to be replicated into 2 copies.

option a is the answer

Explanation:

The cell separates the copied chromosomes to form two full sets (mitosis) and the cell divides into two new cells (cytokinesis). The period between cell divisions is known as 'interphase'.The genome is composed of a number of chromosomes—complexes of tightly coiled DNA that contain genetic information vital for proper cell function. Because each resultant daughter cell should be genetically identical to the parent cell, the parent cell must make a copy of each chromosome before mitosis

Answer:

c

Explanation:

because matter is any substance that has mass and occupies space

Answer:

25 chromosomes

Explanation:

There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. Germ cells divide by mitosis and meiosis. Through the process of mitosis, they originate more sexual cells, but through the process of meiosis, they give place to haploid gametes, called sperm and egg cells, through the gametogenesis process.  

Gametes´destiny is to merge during fecundation, and a new diploid cell called zygote emerges through fertilization. The zygote is a complete cell and suffers successive mitosis to form the new organism.  

Meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.

So, in the exposed example

"...cells of a pineapple plant have 50 chromosomes in their nuclei..."

These might be diploid somatic or germ cells. The number of chromosomes, 2n = 50.

Germ cells in plants suffer meiosis and produce gametes.

Gametes of plants are ovocell and pollen grains. Ovocell is the feminine gamete, while the pollen grain is the masculine gamete.

The pollen grain is haploid and its number of chromosomes n = 25.

Answer:

Si.

Explicación:

Sí, considero que el estudio de la luz está justificado en cuanto a su aplicación en las distintas áreas de la medicina y la ciencia. El estudio de la luz nos permite tratar muchas enfermedades así como también se utiliza en muchos experimentos científicos. Podemos utilizar la luz en diferentes tipos de instrumentos y máquinas que se pueden utilizar en el diagnóstico de enfermedades y luego tratar la enfermedad en consecuencia.

Answer: A semi-permeable membrane is that which only allows certain

               substances to pass through.

Answer: A semipermeable membrane is a layer that only certain molecules can pass through. Semipermeable membranes can be both biological and artificial. Artificial semipermeable membranes include a variety of material designed for the purposes of filtration, such as those used in reverse osmosis, which only allow water to pass. The biological membranes of cells are created by two sheets of phospholipid, which contain a lipid tail attached to a polar head. The tail regions of each sheet cluster together, while the heads of the molecules point outward. The polar heads point both outward toward the environment of the cell and inward toward the cytosol. In this way, a hydrophobic region of lipid tails separates the two bodies of solution. This can be seen in the image below.

Explanation: sorry if its too much wording i tried to shorten it as much as possible

Answer:

Population of lions are more than cheetahs and zebras.

Explanation:

The chart provides information about the population sizes of Lions, Cheetah and Zebras. According to this information, population of lions is the greatest as compared to Cheetah and Zebras. This is due to suitable conditions for the lions such as food and shelter etc in that jungle of Africa as well as strong competitor and its aggressive behaviour make them successfully survive and increase its population in the jungle.

Explanation:

The liver is connected to two large blood vessels, the hepatic artery and the portal vein. The hepatic artery carries blood from the aorta to the liver, whereas the portal vein carries blood containing the digested nutrients from the entire gastrointestinal tract, and also from the spleen and pancreas to the liver.

Answer:

The global average surface temperature rose to  0.6 to 0.9 degrees Celsius ((1.1 to 1.6° F)) between 1906 and 2005, and the rate of temperature increase has nearly doubled in the last 50 years!

Answer:

Chloroplasts trap light energy and chnage it into food for the cell

Explanation:

In the chloroplasts is where photosynthesis occurs. Photosynthesis is the process by which plants make their own food by using carbon dioxide water and sunlight. The chlorplast traps the energy from the sunlight and then the reaction between the carbon dioxide and water can occur

Answer:

The correct answer is ''G-protein coupled receptors on the surface of cardiac muscle cells.''

Explanation:

Adrenaline is a catecholamine whose pharmacological effects occur at alpha and beta adrenergic receptors. The mechanism of action of all beta adrenergic receptors is the activation of a G protein that activates adenylyl cyclase and increases cyclic AMP production. Adrenaline by b-adrenergic stimulus increases the contractile force of the myocardium (positive inotropic action) and increases the frequency in which the myocardium contracts (positive chronotropic action), consequently there is an increase in cardiac work, with a greater demand for oxygen due to the myocardium to be able to contract. Therefore, the blood flow to the heart is indirectly increased, bringing with it a greater supply of oxygen.

Answer:

Resistance to change

Explanation:

Indicators/Characteristics of pseudoscience:

Answer:

It would be arthropoda

Explanation:

Insects and arthropods are the only invertebrates able to fly since insects are not a part of your list arthropoda would be the answer. I hope this helps and if you can give me brainliest? :)

Answer:

The answer is the top one, C

Explanation:

"Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable."

Answer:

Land Degradation

Explanation:

because the specific defenition is "Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land" and it is more relevant than the other defenitions.

Answer:

Lipids

Explanation:

read textbook

Fatty acids are a component of lipids macromolecules.

Fatty acids are a component of lipids. Lipids are a diverse group of macromolecules that include fats, oils, phospholipids, and sterols. Fatty acids are the building blocks of lipids.

They are long hydrocarbon chains with a carboxyl group at one end. Fatty acids can be saturated (no double bonds) or unsaturated (one or more double bonds).

When combined with glycerol, fatty acids form triglycerides, the most common type of lipid used for energy storage in organisms.

More on fatty acids can be found here: https://brainly.com/question/31752492

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The organelle labeled 'F' in the given diagram is Endoplasmic reticulum. The main function ER is to move proteins and other substances through the

Answer:

a

Explanation:

BEST ANSWER IS

ccccccccccccc. skeletal

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Answer:

Mining, drilling, and burning dirty energy are harming the environment and our health. Here’s everything you need to know about fossil fuels, and why we need to embrace a clean energy future.

if you don't know English u can translate

Answer:

HELP MEE TOOOOOOO

Explanation:

in georgia or in the crib

Answer:

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

Answer:

5

Explanation:

Distance is how far something goes and Displacement is how far it is from 0 or from the starting point. Additionally, displacement is a vector so it has a direction, in this case, left or right. To make this shorter let's just find displacement. So you're at 0 and you go 3 units to the right and so you're at positive 3 on the line. Next, you move 4 units to the left so now you're at -1. Finally, you move 6 units to the right and now you're at postive 5. Now you're +5 units away from 0 and so +5 is your displacement (5 units to the right is also correct)

Answer: +5 units or 5 units to the right (as long as it has a sign or a direction it's correct)

Reproduction is the second ability.

Answer:

-50

Explanation:

500-550

Answer:

Anaphase

Explanation:

Answer:

Porque contigo yo ya escogi?

Ahora mi corazon ta supri

Bien simple lang iyo ta pidi

Era cinti tu el cosa yo ya cinti.

Explanation:

.;(