why is synapsis (crossing over) important for the process of meiosis and sexual reproduction?

Answer:

Single base pair mutations can be identified by any of the following methods: Direct sequencing, which involves identifying each individual base pair, in sequence, and comparing the sequence to that of the normal gene.

DNA is the molecule which is most likely to be examined to locate gene mutations. Thus, the correct option is A.

Genetic mutations are the changes to the DNA sequence which happen during the process of cellular division when the cells make copies of the DNA molecules. The DNA molecule tells body how to form and function well.

Genetic mutations are the changes which could lead to genetic conditions such as cancer, or they could help the humans to better adapt to their environmental conditions over a period of time.

Mutations can be of many different types, such as substitution, deletion, insertion, and translocation of the genetic sequence.

Therefore, the correct option is A.

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Answer:

A=5

B=9

C=3

D=4

Explanation:

3+2=A, so A must equal 5.

A+4=B, since we know A equals 5 then 5+4=B, therefore B must equal 9.

2+C=5, then use algebra to solve by subtracting 2 from both sides. C=3.

3+1=D, so D must equal 4.

Answer:

The main producers in the marine ecosystem are plankton, whereas in the African savanna system, it's trees and grass. And in the marine ecosystem, sunlight is not available for all producers

Explanation:

I originally asked for the images but I will give it my best shot at answering your question without them! :D

There are only three types of plant tissues:

1. Dermal

2. Ground

3. Vascular

The dermal tissue is the outside of the plant's root, stem, or leaf, A.K.A the  the skin. If you're looking at a circular image, what ever is pointing to the outside ring of the stem is the dermal tissue.

The ground tissue is the flesh of the plant that is inside the dermal tissue. It surrounds the vascular tissue in the middle of the stem. Whatever letter is pointing to the wide, fleshy ring, that is touching the dermal tissue is the ground tissue. It is the largest part of a plants stem, roots, or leaves.

Lastly, the very inner ring or rings of the plant is the vascular tissue. It's made up of xylem and phloem. This can be found in many different places depending on the part of the plant, but what you're looking for is tiny circles within the ground tissue. If you're looking at the roots, you will see one circle in the very center of the plant, surrounded by ground tissue. If you're looking at the leaves, you will see one circle as well, and additionally other tiny circles throughout the ground tissue in each wing. Lastly, if you're looking at the stem, you'll see a circle of tiny circles within the ground tissue. These small circles are all vascular tissue.

Image 1:

Image 2:

Image 3:

Image 1:

The dermal tissue is the outermost layer of cells that covers the plant. It is responsible for protecting the plant from the environment. The vascular tissue is a system of tubes that transports water and nutrients throughout the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.

In the image, the dermal tissue is the thin layer of cells that covers the surface of the leaf. The vascular tissue is the network of tubes that runs through the leaf. The ground tissue is the bulk of the leaf, and it is made up of cells that contain chloroplasts.

Image 2:

The epidermal tissue is the outermost layer of cells that covers the plant. It is responsible for protecting the plant from the environment. The vascular tissue is a system of tubes that transports water and nutrients throughout the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.

In the image, the epidermal tissue is the thin layer of cells that covers the surface of the stem. The vascular tissue is the network of tubes that runs through the stem. The ground tissue is the bulk of the stem, and it is made up of cells that contain chloroplasts.

Image 3:

The xylem is a type of vascular tissue that transports water and nutrients from the roots to the rest of the plant. The phloem is another type of vascular tissue that transports sugars from the leaves to the rest of the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.

In the image, the xylem is the dark brown tissue that runs through the center of the stem. The phloem is the lighter colored tissue that surrounds the xylem. The ground tissue is the bulk of the stem, and it is made up of cells that contain chloroplasts.

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The complete question is:

Identify the plant tissues in the three images.

A. Is Dermal

B. Is Vascular

C. Is Ground

Answer:

Microscope

Explanation:

Answer:

microscope

Explanation:

Answer:

A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.

Explanation:

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:

Calcium and magnesium

Explanation:

Answer:

Calcium and magnesium

Explanation:

Answer:

B. Water is a versatile solvent

Explanation:

Water is said to possess certain properties that gives it its unique attribute. These properties make it a vital component of life as it makes certain phenomena possible. According to this question, water, which makes up majority of urine content, aids the excretion of certain wastes such as nitrogenous molecules from the body.

Water is able to aid in this excretory function due to its VERSATILITY AS A SOLVENT. Water is said to dissolve more substances than any other solvent. This allows it to transport dissolved substances including waste products out of the body.

The first are the grass,mouse,rabbit, and goat

Answer:

The friend that says 8.0 is twice as powerful as a 4.0. Hope this helps

Answer:

The hydrophilic part of the polypeptide chain would be oriented towards the surrounding water while the hydrophobic portion would be arranged away from the water and would make the hydrophobic interior resulting in coiling of the polypeptide chain. The body proteins assume the shapes to organize their hydrophobic parts away from the watery fluid.

Explanation:

Amino acids are the monomers of proteins. Each amino acid, present in proteins, has a central carbon atom. Four functional groups are attached to the central carbon atom of amino acid. These are the carboxyl group (COOH), amino group, a hydrogen atom (H) and a side chain (called R group). Amino acids differ from each other for the side chain present in them. Based on the nature of the side chain, amino acids are hydrophobic or hydrophilic or neutral. Sidechains of some amino acids are charged and have positive or negative charges on them.

The extracellular fluid of the body is a watery medium. Blood also has liquid plasma that is 99% water. The intracellular fluid, called cytosol, is also a water-based liquid.  

The hydrophilic side chains of the amino acids interact with the watery surroundings. They can make hydrogen bonds with the water. The charged hydrophilic R groups make electrostatic interactions with the surrounding medium. The hydrophobic R groups of the amino acids tend to arrange themselves away from the watery medium. This makes the part of the polypeptide chains with hydrophobic amino acids to fold so that these R groups are oriented away from the water.

Similarly, when a long polypeptide chain is dropped in the water, the hydrophobic R groups are arranged away from the water while the hydrophilic ones are arranged towards the surface of the chain facing the water. It is done to adopt a stable shape where maximum attraction forces are established.  

Answer:

parasitism

Explanation:

This is an example of parasitism, because the shark is not benefitting from this relationship, only the tape worm, making this relationship parasitism.

A tapeworm living in the intestines of a dog fish shark and derives nourishment from the shark due to this reason the shark is weakened and more vulnerable to disease and predation. Thus, this type of relationship is known as parasitism.

The term parasitism is defined as a relationship among two species  in which one organism, that is parasite, survive inside another organism, that is host, that causes harm, and survived.

Tapeworms and barnacles are found attached to the insides part of the intestines of animals like cows, pigs,etc.

They eat the food of animals inside which they live and weakened the animal.

Therefore,a tapeworm living in the intestines of a dog fish shark and derives nourishment from the shark due to this reason the shark is weakened and more vulnerable to disease and predation. Thus, this type of relationship is known as parasitism.

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Answer:

I'll say B cause the Nacl ion breaks down and get surrounded by hydrogen and hydroxyl ion

Table salt dissolving in water is the example of dissociation.

Dissociation is the process by which chemical molecules (or ionic compounds such as salts, or complexes) break down into simpler constituents such as atoms, ions or radicals, usually in a reversible manner.

Moreover, the dissociation of water is an equilibrium reaction in which one water molecule donates its proton to another water molecule.

Salts that are soluble in water dissociate into their ions and are electrolytes. Salts that are insoluble or only slightly soluble in water form very few ions in solution and are nonelectrolytes or weak electrolytes.

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Answer:

b

Explanation:

i got it right with my answer on apex

Jill can use her imagination by thinking of different kinds of materials to be utilized in this experiment. Thus, the correct option is B.

An experiment may be defined as a specific arrangement of instruments, scientific methodology for an event and make a discovery, test a hypothesis, or demonstrate a known fact.

Jill wants to illustrate how the texture of each material affects the movements of bugs. So, she required different kinds of materials in the demonstration of her experiment.

Therefore, the correct option for this question is B.

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Answer:

Pros- Gives our brains something to refer to and Cons- need to remind ourselves that average doesn't equal all.

Explanation:

Because it's right.

Answer:

The soil getting washed away

Explanation:

Answer:

false

Explanation:

water is just good for you and some sugars are good

Iron, water, and sugar are examples of matter that are nutrients. So the statement is true.

The substances in food known as nutrients give us the energy needed for development, repair, and other vital living activities. Although not all nutrients are energy-producing, they are all required in one way or another. There are two groups of these nutrients:

The environment may provide the aforementioned nutrients. Macronutrients give a living thing the energy it needs to run its metabolic system. They offer enormous energy that can be processed and used to produce energy. Fats, proteins, and carbs are examples of macronutrients.

Micronutrients supply the necessary building blocks for metabolism to function. To regulate bodily processes, they also create new tissues and replace ones that have been destroyed. Calcium, iron, vitamins, minerals, iron, and vitamin C are examples of micronutrients.

Therefore, iron, water, and sugar are examples of matter that are nutrients.

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Answer:

Informal science education (ISE) is lifelong learning in science, technology, engineering, and math (STEM) that takes place across a multitude of designed settings and experiences outside of the formal classroom

i hope this help

Explanation:

Informal science education (ISE) is lifelong learning in science, technology, engineering, and math (STEM) that takes place across a multitude of designed settings and experiences outside of the formal classroom.

Answer:What is the best explanation for why oceanic crust is subducted by continental crust?

The continental crust is also less dense than oceanic crust, although it is considerably thicker. As a consequence of the density difference, when active margins of continental crust meet oceanic crust in subduction zones, the oceanic crust is typically subducted back into the mantle.

Explanation:Why oceanic crust is younger than Continental?

Through mantle convection, the rich minerals of the mantle may be ultimately “recycled” as they surface as crust-making lava at mid-ocean ridges and volcanoes. Largely due to subduction, oceanic crust is much, much younger than continental crustWhy is the theory of plate tectonics so important to geologists?

Plate tectonics, theory dealing with the dynamics of Earth's outer shell—the lithosphere—that revolutionized Earth sciences by providing a uniform context for understanding mountain-building processes, volcanoes, and earthquakes as well as the evolution of Earth's surface and reconstructing its past continents and .

Answer:

9km per hour

Explanation

Speed=distance/time.

. =45/5

=9km per hour

Answer:

D, Fish have a 24-hour circadian rhythm.

Explanation:

Got it correct on Study Island

Answer:

i did it

Explanation:

Answer:

Digestive system

Explanation:

Answer:

A. lining up of sister chromatids down the center of the cell.

Explanation:

Hope that helps! If not, let me know. I just took Life Science last year, so I still know that kind of stuff... (for now...)tehehe

Answer:

Zacharias Janssen

Explanation:

Answer:

Washington Teasdale

Explanation:

you can just research this online

Answer:

organ system -skeletal system,bone marrow is a tissue while bones are organ

Answer:

Because when your toe is injured it sends a pulse to your groin that causes your groin to fell pain so your brains neuropathegens dont feel as much pain transmiting through your toe. Hope this helps :)

i think is D. sodium-potassium pump,i hope that's correct

Answer:

Explanation:

Explanation: Many fertilizers are phosphate-based and this accumulates in the soil (and enters waterways), affecting the phosphorus cycle in multiple ways. When phosphate-based fertilizers are used, they potentially enter the soil and water through run-off.

The Rabbit and Mouse- Have a great day!