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Answer:

A. meiosis.

Explanation:

Meiosis is one of the two major types of cell divisions in living organisms. Meiosis is the process by which four daughter cells that are genetically different from the parent cell are produced. Meiotic process is carried out solely during sexual reproduction to yield gametes or sex cells.

The gametes have their chromosomal number reduced by half during the process. However, one immense importance of meiosis is that it PROMOTES GENETIC DIVERSITY. A process called crossing over, which is the exchange of chromosomal segment between non sister chromatids, makes this possible.

Answer:

Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle. These can include things like nutrients to support the cell or pathogens that immune cells engulf and destroy.

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Answer:

C. Pituitary hormone

Explanation:

Answer:

A pyramid of numbers gives a count of the numbers of individual organisms at each trophic level in an ecosystem.

Explanation:

This type of pyramid gives a good picture of the large numbers of producers that are required to support just a few top-level consumers.

Answer:

C

Explanation:

All of the other answers would lead to the oxygen not being stable.

Answer:

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

Explanation:

In Geography, topography can be defined as the shape and structure of the Earth surface. Thus, a topographic map is used to graphically describe this features.

A topographic map can be defined as an accurate and detailed graphical (two-dimensional) description, representation or records of both natural and man-made (artificial) features on the surface of the Earth.

A topographic map is a two-dimensional model that uses contour lines to represent points of equal elevation above sea level such as mountains, hills, plains, valley etc.

The two-dimensional model of a topographic map graphically represents the height of a mount and the steepness of a slope through the use of contour lines.

Contours can be defined imaginary lines used for connecting locations that are having similar elevations on the Earth's surface.

Hence,a topography show two (2) main things and these includes;

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

Answer:

Such material, called detritus, consists of fragments of rocks and minerals. When the energy of the transporting current is not strong enough to carry these particles, the particles drop out in the process of sedimentation. This type of sedimentary deposition is referred to as clastic sedimentation.

Answer:

Such material, called detritus, consists of fragments of rocks and minerals. When the energy of the transporting current is not strong enough to carry these particles, the particles drop out in the process of sedimentation. This type of sedimentary deposition is referred to as clastic sedimentation.

Explanation:

what happens if the first line of defence is breached?

Damage to the skin, such as burns or cuts, very quickly leads to complications and infections that before modern-day antibiotics could easily prove fatal. Once the outer line of defence is breached, the body very quickly starts up its first major attack on the invading substances.

Answer i think is 2,8,2

Explanation:

Answer:

A)

1: The offspring of the cell will contain the exact genes of the parent by reproducing asexually

2: They can reproduce rapidly by reproducing asexually.

B) Binary fission. One cell simply splits into two identical cells.

Explanation:

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Answer:

Use latex condoms every time you have sex.

Avoid sharing towels or underclothing.

Wash before and after intercourse.

Get a vaccination for hepatitis B.

Get tested for HIV.

Explanation:

its common sense

Answer:

Palm oil plantations have lesser habitats, communities, trophic levels, and niches that result in weak ecosystems.  

Explanation:

Oil palm plantation is a crop that is high in demand for the extraction of palm oil used for various purposes like the formation of soaps, cleaning products, washing powder, and production of food products.  

Oil palm plantation is mainly responsible for deforestation, pollution, and habitat fragmentation. Trees are grown at a particular distance and neighboring other species are removed so that the palm trees receive the nutrients from the soil and it will also facilitate easy harvest. Only one tree species is palm tree allowed to grow and other species are restricted as they can mask the sunlight by their canopy making it unavailable for oil palm plants.  

Thus due to habitat fragmentation involving discontinuity in an organism's preferred environment of survival fewer habitats of species can be found as few species which can inhabit the oil palm plants can survive, and the ecosystem becomes weak. As the species are interdependent on each other for food needs. The low number of plant species will reduce the population of faunal species from the location. The functional roles or niches are affected by species, the whole biotic community or ecosystem gets disturbed. This will reduce the population of the species and reduce the overall biodiversity of a region.  

Answer:

wind generated power plants. they have the lowest efficiency because it is not always windy and the wind varies everyday, thus the wind turbines will generate different amounts of electricity each day. They also can be very noisy and cause noise pollution. Wind Plants need good land place and these are mainly found in rural areas far from the city that the electricity is needed.

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Enzyme B stays effective at higher temperatures than enzyme A. Therefore, option (C) is correct.

From the graph, it can be observed that Enzyme B remains effective at higher temperatures, while Enzyme A is less effective at higher temperatures. As the temperature increases, Enzyme A's activity decreases and is less efficient in converting the substrate into product, while Enzyme B remains active at higher temperatures and converts more substrate into product.

Therefore, the conclusion that can be drawn from the graph is that Enzyme B stays effective at higher temperatures than Enzyme A.

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Answer:

they dont they dont exsit you will learn it in collage. So to sound super smart say they dont.

Explanation:

Answer:

c. the beating of the flagella of collar cells, forming a current; food is absorbed by collar cells.

Explanation:

Sponges contains the unique feeding system that should be with the animals. Rather of mouths they have the tiny pores that we called as the ostia displayed on the outer walls via water is drawn. Here cells in the sponge walls strainer the food from the water because the water is pumped via the body and the little mouth

So as per the given options, the option c is correct as the collar cells would create the current and the food should be absorbed by the collar cells

Answer:

A

Explanation:

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Answer:

Explanation:

Given:

  runner is launched at 30° angle to horizontal at 11 m/s

  acceleration due to gravity is g = -9.8 m/s²

Find:

  runner's hang time

  runner's distance to the landing point

  runner's maximum height

Solution:

The (horizontal, vertical) speed components will be ...

  (11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)

The time of flight can be found from the height formula:

  h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch

The time we're concerned with is the time when h(t)=0 and t>0.

  0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)

The second factor is zero when ...

  t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time

__

The distance to the landing point will be the product of horizontal speed and hang time:

  d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing

__

The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...

  h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height

Answer:

Due to difference in size and shape of flower.

Explanation:

Two species of plant cannot interbreed with each other because their flowers differ in size and shape. Each flower has different time of maturation and the appearance of reproductive stage as well as difference in their chromosome number. If these factors occurs on the same time and having same number of chromosomes so they are able to interbreed with each other otherwise not so that's why we can say that two species can't interbreed with each other.

Answer:

C

Explanation:

mechanical energy is the sum of potentiol and kinetical

heat is like stoves

solar is... the sun.

Answer:

c just did the test

Explanation:

i just did the test

In this graph, the population of the species are firstly increasing at a fast peak and gradually retains the constant equilibrium.

It is defined as the number of individuals divided by the area in which the population is residing.

When the certain conditions come up for example the change of certain   situations comes up with the change in situation in which the population along with the environment in which they are living in with.

With the change in the certain conditions where a turbulence of factors comes up with a situation where adaptation is suffered and the chances of survival is harmed up.

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Answer:

False

Explanation:

Cameron doesn't have the rights to look through Emerson's phone because it is a violation of privacy.

Answer:

2) O2 levels would decrease

Explanation:

Answer:

d

Explanation:

the nervous system is made up of different types of neurons, your brain, and spinal cord. these recive and transmit information.

Answer:

long-term effects of air pollution can last for years or for an entire lifetime. They can even lead to a person's death. Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases such as emphysema. ... Some scientists suspect air pollutants cause birth defects

Explanation:

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. DNA and histone proteins are packaged into structures called chromosomes.

Explanation:

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Answer:

hope it helps..

Explanation:

This is a process of taking part of a healthy plant, replanting it, and having it grow. Since cloning is a form of asexual plant reproduction–meaning only one 'set' of DNA–the resulting clones are an exact replica of the parent plant.

Answer:

Coagulation by additionmof chemicals such as aluminium sulfate also known as alum will help in sedimentation of clay particles.

Explanation:

Clay particles are very small particles found suspended water obtained from streams and rivers for township supply. They have weak electrical negative charges on their surfaces which when they approach one another, they repel each other thus making it almost impossible for clay particles to settle out of suspension.

Because of this, prior to the sedimentation step, a chemical process known as coagulation is required. In this process, certain chemicals called coagulants, are added to the water to bring the difficult-to-settle suspended particles such as clay particles together into larger, heavier masses of solids called flocs. They do these by interfering with the repulsive forces between the particles, thus allowing them to clump together into flocs. The most commonly used coagulant used for water purification is aluminium sulfate or alum. Other chemicals that are also employed in coagulation include ferric sulfate and sodium aluminate.