BIOLOGY HIGH SCHOOL

Bone marrow replacement is the method of treatment for individuals with a rare immune system disorder in which the body is unable to produce an immune response called:

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Answer 1
Answer:

Answer:

calcium

Explanation:

calcium helps the bone grow effectively

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Trees in the rainforest store __________, which is released into the atmosphere when the trees are cut down and which may contribute to climate change.A. oxygen B. carbon dioxide C. helium D. hydrogen
Differences between photosynthesis and cellular respiration
Cells such as nerve and muscle cells contain more mitochondria than other cells. why? A) Nerve and muscle cells use more energy. B) Nerve and muscle cells store more nutrients C) Nerve and muscle cells degrade more proteins. D) nerve and muscle cells divide more frequently
According tom Lichens, represented by this symbiotic relationship, are responsible for _____________ or the establishment of a new site for plant growth. A). primary succession B). secondary succession C). trophic metamorphosis D). ecological infiltration

Which is an activity that increases the genetic variation within a population of earthworms

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One activity that can increase genetic variation within a population of earthworms is mutation.

What is mutation?

Mutation is a process that results in a change in the DNA sequence of an organism's genome. Mutations can occur naturally due to errors in DNA replication, exposure to environmental factors such as radiation or chemicals, or as a result of genetic recombination during sexual reproduction.

Mutations can be beneficial, harmful, or neutral in their effects on an organism. They can introduce new variations or traits that can be subject to natural selection and influence the evolution of a population. Mutations can also cause genetic disorders or contribute to the development of cancer. The study of mutations and their effects is an important field in genetics and evolutionary biology.

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sexual reproduction, because that increases genetic variation.

What do decomposers do in an ecosystem

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The decomposers in an ecosystem feed off of the compost of dead organisms, basically. 
An example is certain types of bacteria, which feed off of dead things. 

How might advancements in the study of anatomy have been different if Aristotle and Galen had been able to dissect cadavers? A) There would have been no significant impact on anatomical studies B) The study of anatomy would have remained stagnant C) A greater understanding of human anatomy would have been achieved D) Anatomy studies would have focused solely on animal dissections

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Answer:

C) A greater understanding of human anatomy would have been achieved

If Aristotle and Galen had been able to dissect human cadavers, it's likely that their studies would have led to a more advanced and accurate understanding of human anatomy. Their contributions to anatomy were significant even without human dissections, so the addition of this knowledge would likely have accelerated the field's progress and enriched our understanding of the human body.

How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm is encased in a grain of pollen to travel to an egg. C. Spores can become sperm that will fertilize the egg. D. Self-fertilization is possible if no partner is available.

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The answer is A, a sperm cell and an egg cell combine to form an embryo. Reproduction in living things, regardless of whether plant or creature, by and large, happens in cycles. All plants and creatures have life cycles. Some life cycles are more intricate than others, yet certain components have a tendency to be general and apply pretty much similarly to both plants and creatures.
The correct answer is A. i the process of fertilization, the male gamete (sperm), and the female gamete (ovum), fuse together and embryo is formed. Embryo develops into foetus, and a new organism is formed. Fertlisation can be internal or external (aquatic animals).

Greenhouse gases are added to the atmosphere through a. forest fires. c. radiation. b. photosynthesis. d. absorption.

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Greenhousegases are added to the atmosphere through forestfires. The correct option is A.

What are green house gases?

Greenhousegases are gases the gases which basically trap heat in the earth's atmosphere. The sun shines through the atmosphere during the day, warming the earth's surface.

The earth's surface cools at night, releasing heat back into the atmosphere. However, some of the heat is trapped in the atmosphere by greenhouse gases.

Greenhousegas emissions have far-reaching environmental and health consequences. They contribute to respiratorydisease due to smog and air pollution, and they cause climate change by trappingheat.

Other effects of climate change caused by greenhousegases include extreme weather, food supply disruptions, and increased wildfires.

Carbon dioxide, methane, nitrousoxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and ozone are the main greenhouse gases whose concentrations are increasing in the loweratmosphere.

Thus, the correct option is A.

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CRISPR-Cas9 technology is very innovative and made a breakthrough in biomedical science. What aspect of CRISPR-Cas9 making special from traditional PCR-based base changes? Briefly describe.

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Here we go I got this for you:

CRISPR-Cas9 technology is indeed groundbreaking in biomedical science, and its key distinction from traditional PCR-based base changes lies in its precision and versatility.

**Precision:** CRISPR-Cas9 allows for highly specific and targeted modifications to an organism's DNA. It can precisely edit or replace individual DNA sequences with a high degree of accuracy. In contrast, traditional PCR-based methods are less precise and can introduce unintended mutations.

**Versatility:** CRISPR-Cas9 can be used not only to introduce base changes but also to perform a wide range of genetic manipulations, including gene knockout, gene activation, and gene insertion. It offers a versatile toolkit for genetic engineering and gene therapy applications. Traditional PCR-based methods are primarily focused on amplifying and sequencing DNA, lacking the versatility for such precise genome editing.

In summary, CRISPR-Cas9's precision and versatility make it a revolutionary tool for genetic editing, going beyond the capabilities of traditional PCR-based methods.
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