How many valence electrons does this atom have? How do you know?

Answer:

its C

Explanation:

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

Answer:

1250

Explanation:

Answer:

june 18 tell me if this is wrong i got it from goo gle

Explanation:

June 20 to 21 is the start of summer and longest day of sunlight in the Northern Hemisphere and the start of winter and shortest day of sunlight in the Southern Hemisphere. Though it might seem like the summer solstice would also be when the sun rises earliest and sets latest, it is not.

Answer:

Storage of fat

Explanation:

I am very sorry if I'm wrong ✿✿✿

Answer:

receptores olfativos especializados localizados en el epitelio olfatorio de la mucosa nasal

Explanation:

Las neuronas receptoras del olor se denominan receptores olfatorios. Los receptores olfatorios son células especializadas capaces de percibir miles de sustancias químicas diferentes y decodificar la información en miles de olores distintos. Estos receptores se localizan en la mucosa nasal de las fosas nasales. En el caso del olor a rosa, como así también cualquier otro olor, las sustancias químicas responsables del olor se dirigen al epitelio olfatorio de la mucosa nasal, donde se unen a receptores específicos localizados sobre filamentos sensoriales (cilios) en las membranas celulares de las neuronas especializadas. La unión desencadena una respuesta en la células neuronales, es decir, una descarga eléctrica que se propaga desde las fosas nasales hasta el cerebro, el cual decodifica la información (el olor) en una región conocida como bulbo olfatorio.

Answer: Meiosis I is a Heterotypic division but Meiosis II is a Homotypic division. Meiosis I produces 2 Diploid cells and Meiosis II produces 4 Haploid cells. Both produce two daughter cells from each parent cell.

Answer:

A

Explanation:

Passive transport does not require energy. The substances follow the concentration gradient, meaning they go from high to low. Active transport goes against the concentration gradient. Substances go from low to high, so it requires energy.

Answer:

The simplest virions consist of two basic components: nucleic acid (single- or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.

A virion consists of a nucleic acid core, an outer protein coating or capsid, and sometimes an outer envelope made of protein and phospholipid membranes derived from the host cell. The capsid is made up of protein subunits called capsomeres. Viruses may also contain additional proteins, such as enzymes

Answer:ghhjhjhkjhkjkjhkhExplanatio

Answer:

The arctic tundra is extremely cold all year round.

To reach the ruins, we had to travel through much chaparral.

Explanation:

Answer:

2. Such regions play a significant role in gene regulation. That is why they remain conservative under the influence of natural selection.

Explanation:

Within the genome there are many non-coding regions that control the expression of master developmental genes such as, for example, Hox major transcription factors (TFs) in animals and MADS-box TFs in plants. These gene regulatory regions (e.g., promoters and enhancers) are generally evolutionarily conserved within certain taxonomic groups. In consequence, such non-coding regions are well known to be conserved and interact in a sequence-specific manner with major transcription factors in order to regulate developmental pathways.

Answer:

Intrusive igneous rocks are formed when magma cools slowy and large crystals are formed

Extrusive igneous rocks are formed when magma cools quickly, and small or no crystals are formed, it may be vesicular meaning it may contains air bubbles.

Answer:

a. Drones have wings; workers don't

Explanation:

"Flying ants may be male (the drone) or female (the queen)."

Answer:

Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.

Explanation:

Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.

Answer:

gamma

Explanation:

In the electromagnetic spectrum, gamma rays are the electromagnetic waves which have greatest frequency.

The electromagnetic spectrum consists of electromagnetic  radiation which consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The waves are arranged in decreasing order of energies in the electromagnetic spectrum.There are seven types of electromagnetic waves.

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Answer:

The football will hit the ground 2.11 seconds later.

Explanation:y = y0 + v0yt + ½ayt

2

0 = v0sin  t + ½ayt

2

0 = t(v0sin + ½ayt)

t = 0 or v0sin + ½ayt = 0

½ayt = – v0sin

=

−20sin

=

−2(18.0)sin(35.0°)

−9.8

Answer:

Crabs, lobster, shrimp, etc.

Explanation:

Answer:

Animals can be impacted in a variety of ways, one example being that humans continue to expand their territory they are taking homes and resources to organisms that inhabit that land, this can lead to population decreases as the organism will be forced into a new environment that they are not adapted to.

Explanation:

there are various methods to measure photosynthesis: Uptake of CO2 by plants: Since CO2 is needed for photosynthesis, measuring how much of it is taken up by the plants gives us information on how much of photosynthesis is happening. Release of O2: The amount of O2 produced during photosynthesis can be measured.

Estimation or measuring the rate of photosynthesis can be done by:

The rate of photosynthesis is a gross measure of the rate at which a plant captures radiant energy and fixes it in organic carbon compounds. It can be estimated by:

Thus,

Estimation or measuring the rate of photosynthesis can be done by:

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A. Hemisphere

..................

Answer:

B.Biosphere

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Explanation:

please mark me as brainliest answer

Answer:

phylum Annelida and and leeches

Explanation:

Answer:

B

Explanation:

In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment. The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species.

Therefore, the answer is :

Adaptations are mostly random, as they are genetic. They are written in the DNA. Changes in genes are random. If a mutation happens and the offspring of two parents has a mutation, sometimes that mutation will help it live.

catalyzed particular chemical reactions – in this case, reactions that broke down the film of eye goo that accumulated on my contacts after a week of use. (Presumably, the reason it stung when I got it in my eyes was that the enzymes would also happily break down eye goo in an intact eye.) In this article, we’ll look in greater depth at what an enzyme is and how it catalyzes a particular chemical reaction.

Enzymes and activation energy

A substance that speeds up a chemical reaction—without being a reactant—is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too.

Enzymes perform the critical task of lowering a reaction's activation energy—that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.

Answer:

either c or d

Explanation:

Answer:

They are different from rocky or terrestrial planets that are made of mostly rock. Unlike rocky planets, gas giants do not have a well-defined surface – there is no clear boundary between where the atmosphere ends and the surface starts! The gas giants have atmospheres that are mostly hydrogen and helium.

Explanation:

I hope this helps!

They vary from planets that are predominantly made of rock, such as rocky or terrestrial planets. Unlike solid planets, gas giants lack a clearly defined surface, there is no discernible line separating the atmosphere from the surface.

Telluric planets are another name for terrestrial planets. The Latin words terra and tellus, which both indicate Earth, are the source of the words terrestrial and telluric, respectively.

While the terrestrial planets were warmed by the sun's rays, the Jovian planets developed above the frost line.

Worlds that could float on water and worlds appropriate for manned missions were created under very distinct circumstances, but they have some striking similarities. Every world in our solar system is different.

Therefore, the atmospheres of the gas giants are primarily composed of hydrogen and helium.

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Answer:

1. Proteins.

2. Peptide Bonds.

Explanation:

I majored in Biology

Answer and Explanation:

Lipids are non-polar molecules, so they do not interact preferentially with polar molecules but they can interact with each other. In a polar medium, such as water, the hydrocarbons in lipids aggregate each other, in order to minimize contact with surrounding polar molecules. The interaction between non-polar solutes with polar surroundings exclusion is called hydrophobic interaction.

Answer:

CORRECT ANSWER IS FALSE.

Explanation:

I JUST DID THE QUIZ

E2021

Answer:

False

Explanation:

Edge 2021 ;)