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Lostsunrise [7]
3 years ago
5

Briefly describe the initial experiment in which dr. folkman accidentally observed an important connection between tumor growth

and blood vessels
Biology
1 answer:
Karolina [17]3 years ago
7 0
Http://www.pbs.org/wgbh/nova/cancer/folkman.html

I believe this website will help :)
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The type of reproduction that is most often used by multicellular organisms is.
Nezavi [6.7K]

Meiosis is involved in the formation of the gametes of multicellular organisms.

<h3>How do multicellular organisms reproduce?</h3>

Both plants and animals reproduce by developing new individuals, through gametes or reproductive cells.

<h3>Characteristics of multicellular organisms reproduction</h3>

  • Many multicellular organisms always arise from a single cell called a zygote, the result of the union of two gametes (female and male).

  • The zygote subdivides rapidly throughout gestation, forming the entire body of the creature that, from its birth, begins to grow.

Therefore, multicellular organisms reproduce by means of certain types of reproductive cells that are generated and take care of building a complete new individual.

Learn more about multicellular organisms reproduction here: brainly.com/question/220315

5 0
2 years ago
How heat energy from the sun powers the water cycle?
Karolina [17]

Answer:

Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds.

Explanation:

4 0
2 years ago
Which statement is the best physical description of a gene? A chromosome is a segment of a gene. Genes carry many chromosomes. A
Sergio039 [100]

Answer:

The correct option is <em>C. A gene is a specific segment of DNA on a chromosome</em>

Explanation:

Option A is false because a gene is a segment on a chromosome.

Option B is false because a chromosome carries many genes.

Option D is false because a gene carries a segment of DNA, not all of the DNA.

Option C is correct because there are many genes present on a single chromosome. Each gene carries a segment of DNA. The position of a gene on the chromosome is known as its loci.

4 0
3 years ago
Which of the following steps is required after biological processes have broken down organic material in wastewater?
frutty [35]

Answer:

D

Explanation:

disinfection i think havent really learned this

8 0
2 years ago
Which statements about the modification of chromatin structure in eukaryotes are true?
ExtremeBDS [4]
Below statements are true:

<span>Acetylation of histone tails is a reversible process.
</span><span>Acetylation of histone tails in chromatin allows access to DNA for transcription.
</span><span>DNA is not transcribed when chromatin is packaged tightly in a condensed form.
</span><span>Methylation of histone tails in chromatin can promote condensation of the chromatin.
</span><span>Some forms of chromatin modification can be passed on to future generations of cells.</span>
3 0
3 years ago
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