What diagram demonstrates how crossing-over contributes to genetic variety during meiosis?

Answer:

Deletion mutation

Explanation:

A deletion mutation can remove a single nucleotide, or entire sequences of nucleotides

Answer:

Enzymes can be reused because they do not permanently bond with substrate

Explanation:

Answer:

The early Earth was very different from our Earth today.

Explanation:

Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air (Figure 12.13). These gases created a new type of atmosphere for Earth.

Answer:

The atmosphere we enjoy today is radically different from the atmosphere that formed with the Earth billions of years ago. ... As the Earth cooled enough to form a solid crust (4.4 billion years ago), it was covered with active volcanos. These volcanos spewed out gasses, like water vapor, carbon dioxide and ammonia.

How has the Earth's atmosphere changed over time?

Water vapor, carbon dioxide, methane, ammonia, and other gases similar to the ones produced by volcanoes today were expelled. Over a vast amount of time, millions of years, the earth gradually cooled. ... From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.

Explanation:

Plz mark me brainliest

Answer:

Then, what is the question????

In 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.

A microscope is defined as a laboratory instrument used to examine objects that are too small to be seen by the uncovered eye. Microscopy is the science of examining small objects and structures using a microscope. The word microscopic means invisible to the eye unless aided by a microscope.

Without the microscope, we would not know about the existence of cells or how plants breathe or how rocks change over time. Cell theory was discovered by Robert Hooke in 1665 with the help of a microscope.

Thus, in 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.

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Answer:

223

Explanation:

Answer:

the answer is c because it grabs carbon and turns it into oxygen which is what we breath

Answer:

It depends on the salt concentration inside the cell.

Explanation:

The movement of water through a semi-permeable membrane with different salt concentrations depends on the amount of water and salt concentration in the cell. If the cell has more salt concentration so no more salt moves inside the cell but moves outside the cell while on the other hand, if the cell has low amount of salt than the outer environment then the salt moves inside the cell until its concentration are equal.

Answer:

May, June, July, and August.

Explanation:

*oysters?

The months that do not have an r you can eat oysters. The months that have an r, you cannot eat oysters, which are April, January, February, March, September, October, November, and December.

Expoisoning.

only eat oysters with a letter "r" from the the months of September thru April. I t prevents from getting watery shellfish and food poisioning.

* Do not eat oysters in May, June, July or August*

Answer:

The apple reflects red light and absorbs all other visible wavelengths

Explanation:

The apple is only reflecting the color red and is absorbing the other colors of light (wavelengths)

The correct explanation why an apple looks red is that the apple reflects red light and absorbs all the other visible wavelengths. Thus, the correct option is A.

Light absorption is the process in which the light ray is absorbed by the matter and converted into a form of energy. In an atom, the electrons vibrate at a specific frequency, then this is called as the natural frequency.

Reflection is a phenomenon of light. When a ray of light approaches a smooth polished surface such as metal and the light ray bounces back, it is called the reflection of light. The incident light ray which land on the surface is reflected off from the surface. The light ray that bounces back is called the reflected ray.

Therefore, the correct option is A.

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Answer:

I'm going with C. It may be wrong but I think it's C.

Answer:

the answer is D.........

Answer:

1. Cells have different shapes because they do different things. Each cell type has its own role to play in helping our bodies to work properly, and their shapes help them carry out these roles effectively. The following cell types all have unusual shapes that are important for their function. 2. Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells

Explanation:

Kidney cell is different from other cells in your body such that they are

involved in the following functions due to unique structures and

mechanisms present.

Stem cells are majorly involved in the repair of body cells and tissues

during injuries or when worn-out. This is as a result of them having the

ability to become specialized.

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Answer:

weathering

erosion

Explanation:

Weathering can be explained as the

breaking down of rocks as well as minerals or dissolving it on the surface of the earth. After the rock has been broken down then the bits of the rock can be transported away in a process known as " Erosion". The agents of

weathering and erosion could be water, salt, animal as well as plants.

It should be noted that the parts of sedimentary rocks formation that include the breakdown is weathering while the parts of sedimentary rocks formation that include carrying away of existing rock is erosion.

Answer:

weathering

and

erosion

A cell can be described as the structural and functional unit of life. It can also be described as the building material of all living organisms.

Without the cell, most living organisms will not be able to function. An organelle will not be able to survive that long within its life span without the presence of cells. It will just withe and die off.

Lots of scientists have proved in various ways the existence of cells, this is because they have been able to create microscopes that can see these tiny cells. This is evidence that proves the existence of cells.

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Answer

A. 25%

Explanation:

This is because the black hybrid would be 50% one breed and 50% another breed. Then the white purebred is 100% one specific breed. So by mating, all of those breeds that the parents have all reduce by 1/2 for the offspring.

Answer:

Please make me brainliest

Explanation:

1. Control room- The nucleus controls and helps make the whole cell function

2. Gatekeeper- Plasma Membrane controls what goes in and out of the cell

3. Storage and distribution center- The Golgi Apparatus makes and distributes proteins all throughout the cell

4. Powerhouse- The mitochondria makes energy needed for the cell to preform functions

Answer:

The Richter scale measures seismic waves while the Mercalli scale measures things that humans can see and the intensity people can feel.

Answer:

The answer is D.

Explanation:

Answer:

In school, I was taught that it is like a bouncer who controls who enters and exits the club because the cell membrane controls what is able to permeate into the cell. It’s good, but I like to think of it as a door.

Answer:

because the more alike species are The more they have to adapt to try and compete with one another So the more different a species is the less they have to compete

Answer:

the decrease in biodiversity may cause a significant reduction in the productivity of the ecosystem. The loss of biodiversity means genetic variations are lost and the overall genetic pool reduces.

Explanation:

Egde 2022

Answer:

false

Explanation:

Answer:

The answer is A. true

Explanation:

Answer:

Engineers must design in structures that can absorb the energy of the waves throughout the height of the building.

Explanation:

Answer:

c.

Explanation:

Answer:

D

Explanation:

other guy said it. i trust them.

Answer:

dehydration.

Explanation:

the body is loosing more fluid than it is able to keep in and extreme cases result in death

Answer:

the answer is within young Padawan

Explanation:

Answer:

rain or thunderstorms

Explanation:

Answer: It brings rain or thunderstorms.

Hope this helps!

Answer:

the natural process that warms the earth's surface is known as natural greenhouse.