Which is best represented by the letter x

Answer:

Metaphase I in Meiosis

The homologous pair is a representation of the same DNA but has different alleles. The homologous pairs will attach to each other during metaphase I and they undergo the alignment on the metaphase plate, unlike in mitosis where the sister chromatids are the ones that align on the metaphase plate.

Answer:

The cerebrum is connected to the sensory organs, divided into two hemispheres, and responsible for balance and reflexes. I hope this helps!!!!!

Explanation:

I know this because I got it right in my test I hope this helps people!!!!!!!!!!

(And I just learned about the cerebrum last week!!!!!!!)

Answer:

c. a ball rolling from point A to point B

Explanation:

a is talking about the position of the train

b is talking about the length of the track

d is talking about the distance a student is from somewhere.

So from taking all these options out we are left with C because the ball is actually moving and when something moves it is in motion.

A Mouse is considered the model organism for conducting experiments related to humans.

The appearance or manifestation of a character is known as a trait. It is also known as a Phenotype.

A lab is used to demonstrate the experiments based on a specific area of interest. Here, the experiments of mouse genetics are conducted in the lab to investigate the outcome of genotype and phenotype by using a Punnett square.

Therefore, it is required to develop certain traits while performing the experiment on mouse genetics in a lab.

To learn more about Mouse Genetics, refer to the link:

https://brainly.com/question/3353350

Answer:

the evidence that influenced Darwin was the evidence indicating that volcanoes contribute to natural selection and evidence showing that rocks can change from one type to another after all he was a geologist and he saw various changes on the earth and it might've look a bit older than we thought

Answer:

Explanation:

what

Answer:Explain the differences and similarities among these abiotic and biotic processes in terms of the changes in entropy and heat that contribute to th

Explanation:

Answer:

C

Explanation:

i think

Answer:

c

Explanation:

Answer:

i think the answer is G Large Central Vacuole

Explanation:

Answer:

This is a mitochondrion!

Explanation:

Mitochondria can always be recognized by their internal folds. Hope this helps!

Answer:

no

Explanation:

idk

Answer:

Favorite Answer

Cs-134 has three fewer neutrons than Cs-137. Cs is element 55, meaning these isotopes have 79 and 82 neutrons, respectively.

P-32 has one more neutron than P-31. P-32 has 17 neutrons, and P-31 has 16.

Answer:

Photosynthesis is the process by which green plants absorb light energy from the sun with the assistance of water and carbon dioxide, and transform it into chemical energy to make (synthesize) carbohydrate (specifically glucose) and oxygen.

The "light-independent" or dark reactions happen in the stroma of the chloroplasts. This is also known as the Calvin Cycle. Since these processes can only happen in the chloroplast (a chlorophyll filled plastid in green plants), photosynthesis can only happen in green plants!

The first overall principle of photosynthesis is that the light energy from the sun is transformed into chemical energy and stored in the bonds of glucose (the sugar carbohydrate) for later use by the plant and/or organism that eats the plant.

The second overall principle of photosynthesis is that carbon, oxygen, and hydrogen atoms are taken from carbon dioxide and water molecules and are broken up and rearranged into new substances: carbohydrate (specifically glucose) and oxygen gas (so we can breathe, whew!). This reaction represents the transfer of matter: carbon dioxide from the atmosphere, water from the soil or atmosphere, into sugar in the plant and oxygen back into the atmosphere.

Light-Dependent Reactions

The first part of the process happens in the thylakoids of the chloroplasts and are the "light-dependent" reactions: The photosystems I and II absorb the photons from the sunlight and process them through the membranes of the thylakoids simultaneously. The photons excite electrons in the chlorphyll which then move through the electron transport chain and causes NADP- to combine with H+ forming NADPH. At the same time, ADP (adenosine diphosphate) has come from the dark reaction and a third phosphate chain is bonded forming ATP (adenosine triphosphate) to feed the Calvin Cycle next. Remember that ATP is the important source of all cellular energy.

We now believe that all the oxygen released in photosynthesis comes from the water molecules and all oxygen atoms that form the carbohydrates come from the carbon dioxide molecules. So, in other words during the light-dependent reaction a water molecule is broken down producing two H+ ions and half an oxygen molecule. We get the rest of the oxygen molecule when another water molecule is broken down.

Dark Reactions

Dark reactions are also known as the Calvin Cycle, the Calvin-Benson cycle, and light-independent reactions. The point is that they do not require sunlight to complete their process.

After ATP is formed in the first part of photosynthesis, for living things to grow, reproduce and repair themselves, the inorganic form of CO2 must be transformed into carbohydrate. This happens during the Calvin Cycle in the stroma (the fluid filled interior of the chloroplast). ATP and NADPH combine with CO2 and water to make the end product of glucose. The ADP and NADPH+ are recycled to the light-dependent side to start the process over.

Remember that during hours of darkness, plants cannot perform photosynthesis so they do cellular respiration in the mitochondria just as all living organisms do.

Explanation:

I hope this helps

Answer:

D. Plants

Explanation:

They get the Carbon Dioxide for photosynthesis

Answer:

the correct answer is A.

Lab tools present in the picture are ring stand, tongs, watch glass, flint striker, erlenmeyer flask.Thus, option C is correct.

There are several safety measures that should be taken while performing an experiment in lab such as avoid drink and food while working in laboratory and wear PPE kit to keep yourself safe.

Never work lonely in the lab because this condition will turn into danger situation as suppose a person works lonely and due to reaction of some chemical the person become unconsious than there is no one to help him.

Always wear gloves, PPE kit, proper shoes, lab coat of full sleeves with safety goggles. All these things will helps to keep a person safe in lab while experiment.

Therefore, Lab tools present in the picture are ring stand, tongs, watch glass, flint striker, erlenmeyer flask.Thus, option C is correct.

Learn more about safety measures in laboratory here:

brainly.com/question/17303366

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Answer:

A sex-linked trait refers to genes that determine a specific structural or functional characteristic and are found on an X or Y sex chromosome.

Explanation:

The X and Y sex chromosomes are what determine the sex of an individual, XY for male and XX for female. A sex chromosome-linked trait refers to specific genes located on one of the sex chromosomes.

In general, the X sex chromosome is capable of having more traits linked to it because it is larger than the Y chromosome.

Genes are what determine the morphological and functional characteristics of an individual. When specific genes are found on a sex chromosome, the traits that they determine will be given to the offspring through that chromosome.

A. Karyokinesis is defined as the division of the nucleus during the M phase of the cell cycle. It is the first step in M phase.

B. Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.

C. Interkinesis is a period of rest that cells of some species enter during meiosis between meiosis I and meiosis II. No DNA replication occurs during interkinesis.

Answer:

c.

Explanation:

food is energy for an organism

hope this helps!

Answer:

all living things

Explanation:

because all living thing provide

Answer:

TRUE

Explanation:

Central to the functioning of the nervous system is an extensive network of specialized cells called neurons, There are basically two major types of nerves: sensory and motor. Sensory nerves send information such as touch, temperature, and pain to the brain and spinal cord., Sensory neurons carry nerve impulses from tissues and organs to the spinal cord and brain. Motor neurons carry nerve impulses from the brain and spinal cord to muscles and glands(see Figure below). Interneurons carry nerve impulses back and forth between sensory and motor neurons.

pls give me brainliest i really need it

and good luck on your work

Our brains, nerves, and spinal cords are made up of specialized cells that you don't find anywhere else in the body is a true statement.

The brain, spinal cord, and a sophisticated nerve network are all parts of the nervous system. The brain and the body are communicated with via this system.

All bodily functions are managed by the brain. From the brain, the spinal cord descends via the back. It is made up of strands of nerves that branch out to every organ and area of the body.

The brain sends and receives messages via this network of nerves to many regions of the body.

Therefore, Our brains, nerves, and spinal cords are made up of specialized cells that you don't find anywhere else in the body is a true statement.

To learn more about brain, refer to the link:

https://brainly.com/question/11950231

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Answer:

folding

Explanation:

Yes, however, random people should not just be taught because people have a tendency to not follow every step, and can hurt themselves. I learned about this, and that if you modify a persons DNA, that's permanent. If you messed up, your offspring could be impacted. This is why we don't just give out information, because people are afraid that if we messed up, we could end the world or something.

Answer:

Most ocean pollution begins on land.

Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff.

Answer:

Plastic pollution: The ocean is estimated to contain millions of tons of plastic debris, much of which comes from land-based sources.Chemical pollution: The ocean is also contaminated with a wide range of chemicals, including pesticides, herbicides, and industrial and household chemicals.Nutrient pollution: Excess nutrients, such as nitrogen and phosphorus, can enter the ocean from agricultural and urban runoff and contribute to the growth of harmful algal blooms.Oil pollution: Oil spills and other oil discharges into the water can have a negative effect on the animals and marine ecosystems there.

Explanation:

https://www.quora.com/What-percent-of-the-ocean-is-polluted

Answer: The answer is A

Explanation: Just verifying that hes right.

Answer:

1601.33J

Explanation:

Kinetic energy = 1/2 × mv²

Where;

m = mass (kg)

v = velocity (m/s)

To calculate the kinetic energy of the same car at a different speed, we initially need to calculate the mass of the car.

The initial velocity of the car is 50km/hr = 13.89m/s, while the kinetic energy is 400Joules

K.E = 1/2 × mv²

400 = 1/2 × m × 13.89²

400 = 1/2 × m × 192.93

400 = 96.466m

m = 400/96.466

m = 4.15kg

Mass of the car is 4.15kg

K.E = 1/2mv²

If velocity = 100 kilometers/hour = 27.78m/s

K.E = 1/2 × 4.15 × 27.78²

K.E = 1/2 × 3202.67

K.E = 1601.33J

Answer:

1600j

Explanation:

ke prop to v^2

ke1/v1^2=ke2/v2^2

400/50x50=joules/100x100

400x2x2