The human population has changed since it first appeared on earth as The b. population has generally increased, and at rates that have varied over time.
Humans, as well as other populations, have changed since their appearance on earth. Some populations became extinct as they were not able to cope with the environmental changes whereas other became more adaptable and increased in number over time.
The human population has also increased with the passage of time. However, the increase in the rate of the human population was not a stable one. At some times in the past, the population number declined due to environmental factors such as the eruption of a disease etc.
However, with the passage of time, humans have managed to adapt themselves to the changing environmental conditions and their population is increasing rapidly.
Although a part of your question is missing, you might be referring to this question:
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?
a. The population has generally increased at a relatively constant rate
b. the population has generally increased, and at rates that have varied over time
c. The population increases rapidly until it reaches carrying capacity, where it has remained for thousands of years
d. The population increases rapidly until it reaches carrying capacity, and then decreased at a constant rate
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Bones are classified as one of four types based on their shape. the bones of the cranium are examples of?
The bones of the cranium are examples of flat.
The cranium is made up of facial bones and cranial bones, which surround and guard the brain (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face). The spinal cord attaches to the brain through a hole at the base of the skull. also known as skull. They are not spherical; they are flat. The skull and rib bones serve as examples. Although flat bones have marrow, they lack a cavity for the bone marrow.Your skull's bones support your face while also enclosing and shielding your brain. Your skull contains a large number of flat bones. The frontal bone is one of these.To learn more about bones.
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Eukaryotic cells store their dna in the form of linear chromosomes. This creates problems for replication of dna at the ends of the chromosomes because.
Eukaryotic cells store their DNA in the form of linear chromosomes. This creates problems for the replication of DNA at the ends of the chromosomes because of the fact that DNA polymerase can only synthesize DNA in a 5' to 3' orientation.
The family of enzymes that catalyze the synthesis of DNA molecules from nucleoside triphosphates, the basic building blocks of DNA, includes DNA polymerase. These enzymes, which are required for DNA replication, typically function in groups to divide an initial DNA duplex into two identical copies.
DNA polymerases' major function is to efficiently and properly replicate the genome in order to maintain the genetic code and ensure that it is faithfully passed down through the generations. While other DNA polymerases are primarily involved in DNA repair and translesion DNA synthesis, the third polymerase, Pol III, is responsible for duplicating the chromosomal DNA.
There are five DNA polymerases found in eukaryotic cells: and. The polymerase enzyme, which is found in mitochondria, is in charge of replicating mitochondrial DNA. The remaining four enzymes are thought to be involved in nuclear DNA replication because they are found in the nucleus.
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what is unusual about organisms in the domain archaea? their rate of reproduction is very fast. their rate of reproduction is very fast. they are complex, multicellular organisms. they are complex, multicellular organisms. they live in extreme environmental conditions. they live in extreme environmental conditions. they are very large.
The unusual about organisms in the domain Archaea is that they live in extreme environmental conditions.
What is archaea?
Single-celled creatures fall under the realm of archaea (Singular archaeon). These microbes are prokaryotes because they lack cell nuclei. Although originally given the name archaebacteria (in the Archaebacteria kingdom), archaea were initially categorized as bacteria.
Prokaryotic organisms called archaea have evolved to exist in the most hostile circumstances where no other living thing can. Extremophiles are a group of archaea that have evolved to harsh settings like geysers, extreme cold, alkaline, and acidic temperatures.
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Amoebas live all their lives:
on land
in water
in the air
water
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Mitochondria contain membranes that are folded to create compartments known as cristae. cristae increase the surface area of the inner mitochondrial membrane, so more atp can be produced.
Mitochondria possesses double membrane as its covering. The outer easy floor and the internal membrane bureaucracy infoldings known as as cristae, which will increase floor vicinity for extra formation of electricity withinside the shape of ATP.
The internal membrane of the mitochondrion folds inwards, forming the cristae. This folding permits a extra quantity of membrane to be packed into the mitochondrion. The records on this look at display that subunits e and g of the mitochondrial ATP synthase are concerned in producing mitochondrial cristae morphology.
Mitochondrial cristae are the folds in the internal mitochondrial membrane. These folds permit for extended floor vicinity wherein chemical reactions, which includes the redox reactions, can take place.
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colchicine, a chemical extracted from the autumn crocus (colchicum autumnale), inhibits the formation of microtubules. mitotic cells exposed to colchicine will therefore be arrested at .
It may be extracted from plant Colchicum autumnale and C. luteum. Colchicines save you spindle formation at some stage in mitotic metaphase. Thus, it prevents the separation of chromosomes at some stage in anaphase stage.
Colchicine is used to save you gout assaults (sudden, intense ache in a single or greater joints because of abnormally excessive stages of a substance known as uric acid withinside the blood) in adults. Colchicine (Colcrys) is likewise used to alleviate the ache of gout assaults once they occur.
Colchicine is an vital mutagen that works through stopping the microtubules formation and doubles the range of chromosomes. It is usually used to expand polyploid flora and features as a mitotic poison through generating many mutagenic results on flora.
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A network of tubules that synthesize and transport materials needed for cellular growth and other functions.
A network of tubules that synthesize and transport materials needed for cellular growth and other functions is Smooth Endoplasmic Reticulum
What kind of tubules produce proteins?
Endocytic reticulum (ER)
Large and active, the endoplasmic reticulum (ER) plays a variety of functions in the cell, including calcium storage, protein synthesis, and lipid metabolism. Different domains, which are composed of tubules, sheets, and the nuclear envelope, carry out the various ER activities.
Many concerns remain regarding how the ER alters form in response to cellular signals, cell type, cell cycle state, and during organism development.
A number of proteins that contribute to the overall architecture and dynamics of the ER have been discovered. In this section, we go through what is known about the ER's dynamics, what is yet unknown, and how coordinated responses add to the levels of control in this dynamic organelle.
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