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Answer:

Other than mountains, what else could cause geographic isolation? population to start a new population. genetic drift -change in allele frequency in a small population due to random chance. migration - some organisms move away to start a new population

Explanation:

thank me later

Explanation:

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Cells are the basis of the survival of human beings. We, the living organisms are made up of cells. If cells won’t divide no new organisms would originate.

Cell division is the process by which a parent cell divides, when a mother cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle. Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.

The existing cells will die and no new cells will be produced as there is no cell division.

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Answer:

false

Explanation:

because it is osmosis any liquid (water) can move through the membrane withought energy

Answer:

False

Explanation:

Answer:

a.)fault:A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.

b.)focus:The focus is on the location where an earthquake begins deep under the Earth's crust.

c.)epicenter:The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter.

d.)seismic waves:Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.

Explanation:

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A fault is a planar crack or discontinuity in a volume of rock over which rock-mass motions have caused considerable displacement.

The focus is on the location where an earthquake begins deep under the Earth's crust.

The epicenter of an earthquake is the point on the earth's surface that is vertically above the epicenter

Seismic waves are elastic waves that occur in the ground as a result of an earthquake or other natural occurrence.

Explanation:

Answer:

B. Dynamic Equilibrium

Explanation:

Since the molecules are still in motion, but an equilibrium has been established, the end result of molecular diffusion is called a "dynamic equilibrium". The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, the movement of molecules does not stop.

Answer:

B. Dynamic Equilibrium

Explanation:

When the particles are equally spaced apart they have reached the dynamic Equilibrium.

Answer:

Crust

Explanation:

Crust has the most interaction with the other spheres of Earth.

Answer:

I say the correct answer is the 3rd one.

Explanation:

Answer is number 3

Answer:

i got this question today and it's b

Explanation:

Answer:

can't understand your language

Answer:

1. It's because when they talk to girls (Not all), they fill their head with all sorts of doubts and worries and then feels nervous as a result.. like for example they could be thinking "Am I making the right impression? Am I too annoying? What does she think of me?"

2. It means that they think that person is pretty. But if it gets too weird or annoying, you should report/tell an adult about it right away.

Answer:

Due to environmental conditions.

Explanation:

With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.

Answer:

The first alligator ancestors evolved about 245 million years ago.

Explanation:

The first alligator ancestors evolved about 245 million years ago due to change in the environmental condition.  crocodilians appeared about 80 million years ago during the Cretaceous period. Modern alligators has experience less changes which is closely related to their ancient ancestors and look much like to their relatives that exists about 80 million years ago. The main reason for the change in the body structure of alligator is due to change in environmental condition.

The evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.

Evolution means descendence with some class of modification in offspring (phenotypic, genetic, etc).

In conclusion, the evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.

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Answer:

SEE BELOW

Explanation:

1) DNA: CCA TAG CAC GTA CAA CGT GAA AGG TAA

 mRNA: GGU AUC GUG CAU GUU GCA CUU UCC AUU

AMINO:  Gly lle Val His Val Ala Leu Ser lle

2) DNA: CCG TAG CAT GTT ACA ACG CGA AGG CAC

 mRNA: GGC AUC GUA CAA UGU UGC GCU UCC GUG

AMINO: Gly lle Val Gln Cys Cys Ala Phe Val

Fossil record is not a piece of evidence that Darwin used to support his theory of evolution.

Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits.

Darwin proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor. In this model, each species has its own unique set of heritable (genetic) differences from the common ancestor.

The current evolutionary theories can be categorized as Darwinism and Lamarckism. Charles Darwin theorized Darwinism. He explained his theory of natural selection in his book, On the Origin of Species.

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Answer:A.fossil record

Explanation:

Answer:

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.

Explanation:

Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

An element that can bioaccumulate in lead to biomagnification is Mercury.

Hence, the correct option is d. Mercury.

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Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Explanation:

Answer:

Identical

Explanation:

Binary fission is a form of asexual reproduction. This is when only one parent is involved in creating offspring. Since there is only one parent, two sets of DNA cannot be combined into a new offspring; so, it must be identical.

Answer:

I don't know your reasons on how you would feel about becoming an astrobiologist but this is what I found and my feelings.

Explanation:

The Perseverance twin is called Optimism.  This has all of the same electronics as Perseverance and it’s important to have a twin so that they can test things before they operate Perseverance.  When they do land on Mars they need the twin to test out all of the sequences and plan that they have for the rover before they send them up to Perseverance on the surface of Mars.  Also, if they have a problem with Perseverance it gives them a place to practice how they recover from that problem.  

Personally, for me, I would not like to become an astrobiologist.  I like science but not that much.  I like the simple questions of why and how does it work.  I’m not entirely sure that we as humans are meant to be on any other planet except earth.  Earth has been here for many many years and seems to reset itself.  I don’t care why and will never know why in my lifetime.  I’s just not something that I like to considerate doing as a career.

NASA is targeting no earlier than April 8 for the Ingenuity Mars Helicopter to make the first attempt at powered, controlled flight of an aircraft on another planet. Before the 4-pound (1.8-kilogram) rotorcraft can attempt its first flight, however, both it and its team must meet a series of daunting milestones.

Ingenuity remains attached to the belly of NASA’s Perseverance rover, which touched down on Mars Feb. 18. On March 21, the rover deployed the guitar case-shaped graphite composite debris shield that protected Ingenuity during landing. Ingenuity is battery powered and completely sef recharging from the solar panel on the top.  The rover currently is in transit to the “airfield” where Ingenuity will attempt to fly. Once deployed, Ingenuity will have 30 Martian days, or sols, (31 Earth days) to conduct its test flight campaign.  All data and pictures will  be transmitted to Perseverance and then uploaded for all to see.

Answer:

Pancreas

Explanation:

Insulin is an essential hormone produced by the pancreas.

Answer:

Pancreas

Explanation:

During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.

Answer: Mendel and genetics

Explanation:

Answer:

Ecosystem

Explanation:

Ecosystems are the largest organizational level found in one coral reef

Answer:

Explanation:

A diagram of a Punnett Square showing the chromosomes involved in the inheritance of sex-linked traits.

The female had the genotype XHXh, and produced the two gametes seen at the left side of the diagram.

The male had the genotype XHY0, and produced the two gametes seen at the right side of the diagram.

The genotypes seen in the center of the square represent the possible genotypes of the F1 generation.

Two female offspring are produced for every two male offspring.

One male and one female offspring inherit normal genes.

One female is heterozygous for the hemophilia trait and is considered a carrier.

One male receives a damaged X-chromosome and inherits the condition known as hemophilia.

The cell is the basic structural, functional, and biological unit of all living organisms.

The structural and essential component of life is the cell. Cell biology is the study of cells, including their fundamental makeup and the purposes of each of their organelles.

The first biologist to discover cells was Robert Hooke. Cells make up every living thing. They could consist of several cells (multicellular) or just one cell (unicellular) (multicellular).

The tiniest cells known to science are mycoplasmas. All living things are constructed from cells. They give the body structure and turn the nutrients from the diet into energy.

Complex cells conduct a variety of tasks for an organism's parts. They resemble masonry bricks in that they come in a variety of sizes and forms.

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Answer:

Tom Cruise is not a trustworthy source because he is an actor, and is not a trained professional who is properly educated about psychiatric medication.

Explanation:

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Answer:

C

Explanation: