Biology High School
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Answer 1
Answer:
Cancer cells are taken from a living organism and grown in a culture.Cancer cells grow at an uncontrolled rate.Cancer cells do not stop growing when they are touching; they continue growing.Cancer cells grow multiple layers thick.Cancer cell growth differs from normal cell growth and the number of mitotic divisions are unlimited.
Answer 2
Go to quizlet thats where i had found the answer at :)
Related Questions
Which of the following describes a benefit of membership in research community?
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Knowledge and valuable resources are shared among scientists.
Answer: An expensive intrument is shared by scientists at a university. Ape.x
After a zygote undergoes cleavage division it is called a ____
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After a zygote undergoes cleavage division it is called a blastula. A blastula is a spherical ball of cells that is created by cleaving the zygote.
After a zygote undergoes cleavage division, it is called a blastocyst .
which of the following neurotransmitters are associated with alcohol...a. GABA.b.Acetylcholine.c.Endorphins.d.Adrenalin
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The correct answer is GABA.
GABA is a neurotransmitter, which functions by shieldingcertain impulses fired between nerve cells in the brain.Low level of GABA result in chronic pain, anxiety, epilepsy, sleep disorder,etc. Alcohol and GABA have similar effects on the brain, because alcohol is an agonist of GABA receptors, that is, alcohol has the capacity to bind to some brain GABA receptors and produce the same effects as that of GABA. This action increases the amount of dopamine and serotonin that is released into the brain leading to production of pleasurable feelings and emotions. Continuous exposure of GABA receptors to alcohol over a long period of time will lead to insensitivity of the GABA receptorsand ultimately to alcohol addiction.
The correct answer is A. GABA
Gaba neurotransmitters are associated with alcohol. Some of the other mentioned are not even neurotransmitters.
Unlike endocrine glands, exocrine glands
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They are different because endocrine glands has tiny amount of hormone directly into the bloodstream . While exocrine glands secret their products on to epithelial
Unlike endocrine glands, exocrine glands?
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Unlike endocrine glands, exocrine glands release secretions through ducts, and not into the bloodstream. An example of that would be tears or sweat that get released in different manners from endocrine secretions.
Using microscope slides and dipping them into the boiling hot springs at Yellowstone National Park, scientists were able to collect these organisms. They are unicellular, prokaryotes with a cell wall. What are they?
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Answer: The correct answer is-
Archaebacteria.
Archaebacteria is a domain of unicellular micro organisms, which constitute a group of most primitive forms of prokaryotes ( that is devoid of nucleus and membrane bound subcellular organelles). The organism under this domain are adapted to survive under extremely harsh conditions ( therefore also called extremophiles) such as boiling mud around volcano, hotsprings.
Example- Methanogens.
In the question, scientists were able to collect the organisms by using microscope slides, which were dipped into the boiling hot springs.
Thus, it represents the organisms collected were Archaebacteria.
The answer is Archaebacteria
The evolutionary theory that suggests that a species can suddenly and rapidly evolve into a new species is?
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The evolutionary theory that suggests that a species can suddenly and rapidly evolve into a new species ispunctuated equilibrium.
The evolutionary theory that suggests that a species slowly and continuously evolves over a long period of time is puctuated equalibrium
Which of the following correctly organizes these genetic terms in order from smallest to largest? A:chromosome, gene, nucleotide, DNA B:nucleotide, gene, DNA, chromosome C:DNA, nucleotide, gene, chromosome D:DNA, nucleotide, chromosome, gene
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The correct answer is nucleotide, genes,DNA, chromosomes or letterB. Nucleotides are composed ofbase pairs like adenine and thymine, 5 carbon sugar and a phosphate groupwhich form together a DNA strand with repeated nucleotides. Chromosomes are composed of DNA strands coiled together. Chromosomes thus,contain a hundred genes.Genes are made up of DNA, it is a certain segment in the DNA which dictate a trait.
Answer:
Explanation:
B
By preserving hot spots, ecologists hope to protect species in danger of extinction due to
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An ecological hot spot is an area wheremany species are at high risk of extinction due to primarilyhuman activity. Habitat loss is rampant and also leading to habitatextinction. Human habitats tend to coincide or intervenewith species habitats in such a way that about20% of peopleall over the worldlivewithinecological hotspots.
An elongated tailbone occurs rarely in some newborn children. What does the presence of a tailbone indicate?
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C) That the child's genome must have undergone mutation
AN elongated tail bone indicates that a baby will either grow to be tall or have scoliosis.
How do I begin to study human genetics?
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One learns genetics from the past first. Learn from the past geneticists and their accomplishments. Their accomplishments are the foothold of the field of genetics. From there, one must understand the study and role of chromosomes. It is basically the fundamental unit of genetics. Then, one must be familiar with the cell cycle. Genetics then branches out beautifully further.
True or false: When a population exceeds the varying capacity a sudden population decline can be expected
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The answer is false cause when the carrying capacity is surpassed, that means the predators have plenty of prey. The predators will reproduce, unaware that the food source is getting smaller. So, for a small period of time, the population will decline slowly, then quickly drop off.
When a population exceeds the varying capacity a sudden population decline can be expected :
False
True or false: Ecosystems are more numerous than biospheres
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Ecosystems are more numerous than biospheres :
False
In seedless plants haploid gametophytes are produced from
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The right answer is haploid spores that will undergo mitosis.
The reproductive cycle of pteridophytes, for example, consists of the alternation of a diploid phase and a haploid phase. On the leaves of the ferns (diploids) there appear sporangia in which meiosis producing haploid spores occur, which are scattered by the wind. Germination gives rise to a small mass of haploid cells, the prothallus. This prothallus (representing the gametophyte haploid) will produce male and female gametes that will meet: fertilization. The egg cell resulting from this encounter develops and gives back a new diploid organism, on whose leaves sporangia appear .....
In seedless plants haploid gametophytes are produced from Mitosis. Haploid unicellular spores are created using meiosis, and then they undergo mitosis and cytokinesis and form a gametophyte.
What is carbon dioxide that humans breathe out produced by
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The food and drink we eat is one of the by-product of carbon compounds when it reacts with oxygen in the cells it produces carbon dioxide and water plus energy. We use the energy and the carbon dioxide is breathed out as gas.
The oxygen and glucose are produced in mitochondria of cells. Glucose contains carbon. That is where the carbon in carbon dioxide comes from. Glucose plus oxygen produces carbon dioxide, water and energy. When this process stops, the cell dies.
punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. cats that have coats that are a patchwork of black and orange are called tortoiseshell cats, are typically female, and have genes that code for both black fur (xo) and orange fur (xo) located on the x chromosomes. y chromosomes do not code for color in tortoiseshell cats. a female cat that has only orange fur (xoxo) is crossed with a male cat that has only black fur (xoy).
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If the question is how many of the offspring will have tortoiseshell coloring (XOXo), the answer is 2 in 4.
Let's take a look at that cross:
Parents: XOXO x XoY
Offspring: XOXo XOY XOXo XOY
The offspring will look like this:
Of total 4 offspring,2 female cats thathave tortoiseshell coloring (XOXo), and 2 male cats with orange coloring.
Answer: Number of offspring’s that will have tortoiseshell coloring (XOXo) are 2
Explanation:
Key:
A female cat that has only orange fur -> (xoxo)
A male cat that has only black fur -> (xoy)
So, as per the cross the four offspring’s would have the probability as follows
2 offspring’s: female cats that have have tortoiseshell coloring (XOXo)
2 offspring’s: male cats with orange coloring.
Cross:
Parents: XOXO x XoY
Offspring: XOXo XOY XOXo XOY
the human nervous system is broken up into central and peripheral parts. the central system (cns) is made up of
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The Central Nervous System is made up of the brain and the spinal cord.
hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female?
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Estrogen is responsible.
This is a simple sugar that provides energy to organisms
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Glucose is the simple sugar that provides energy to organisms.
Glucose is the answer
The spinal cord is made up of
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The spinal cord is made up of bones called vertebrae.
White and gray matter