BIOLOGY HIGH SCHOOL

What do acrosome contains. what is acrosome made up of? its functions​

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Answer 1
Answer:

Answer:

what do acrosome contains:   The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa (sperm cells) of many animals including humans. It is a cap-like structure derived from the Golgi apparatus. In Eutherian mammals the acrosome contains digestive enzymes (including hyaluronidase and acrosin).

what is acrosome made up of? :         The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa or sperm cells of many animals. It is a cap-like structure derived from the Golgi apparatus.

its functions​:  The function of the acrosome reaction is to help the sperm get through the egg's protective coat and to allow the plasma membranes of the sperm and egg to fuse. This places both haploid nuclei (one from the sperm and one from the egg) into the same cell, where they form the diploid genome of the new organism.

Explanation:

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Like logistic growth, exponential growth A. reaches its carrying capacity over time. B. can be plotted in the shape of an S curve. C. exhibits a period of rapid growth as the population size increases. D. is slowed by limiting factors.
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Transcription factors function to help move ribosomes along the mRNA. True or false?

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Answer:

False

Explanation:

Transcription factors are proteins that bind to the DNAand regulate the transcription of genes to mRNA.  They recognize specific sequences in the DNA and control the rate of gene transcription. Which genes will be expressed in a certain cell or tissue depends on what transcription factor is present in that cell or tissue.

List four ways in which forests are useful to us

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1: Oxygen Production, plants release oxygen.
2: Forest prevent a water runoff during rain.
3: They help prevent soil erosion.
4: Forests are also used in making medicine.

Answer:

1) forests will take co2 and give out O2

2) forests will prevent soil erosion

3)prevent desertification

4) shelter for animals to prevent the extinction

Despite the high-level of biodiversity, this biome has infertile soils, principally oxisols, to which the vegetation has roots systems that capture nutrients from litter decay.

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The biome that has infertile soil, principally oxisols, to which the vegetation has roots systems that capture nutrients from litter decay, is the tropical rainforest.

Soil types are highly variable in the tropics and are the result of a combination of several elements or variables which includes climate, vegetation, topographic position, parent material and also the soil age. Most of the tropical soils are described by leaching and poor nutrients. It also has two classifications: namely the ultisols and oxisols. Ultisols are known as well-weathered, acidic red clays soils. They are deficient primarily in major nutrients such as potassium and calcium. Oxisols are also an acidic type of tropical soil. However, they are well drained compared to the ultisols.

4. in the plant arabadopsis, the flc gene is a regulator of flowering. when expressed, flc is transcribed and translated into a transcription factor protein that functions to repress flowering. suppose a researcher introduced a small interfering rna (sirna) that was complementary to the flc mrna. what effect would this have on flowering in arabidopsis? explain (4 pts)

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The introduction of a small interfering RNA (siRNA) complementary to the flc mRNA in Arabidopsis would likely result in the repression of the flc gene and promote flowering.

The siRNA would bind to the complementary flc mRNA, leading to its degradation through RNA interference (RNAi) or preventing its translation into the transcription factor protein that represses flowering. This would decrease the concentration of the FLC protein, releasing the repression of flowering genes, and leading to an increase in flowering in Arabidopsis.

siRNA technology can be used to target specific genes and regulate their expression in plants, animals, and other organisms. In this case, it can be used to manipulate the expression of the flc gene and promote flowering in Arabidopsis, providing a potential tool for crop improvement and genetic research.

To know more about small interfering RNA, refer here:
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A cell's organelles are suspended within its _____.nucleus
cell wall
cell membrane
cytoplasm

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Answer: cytoplasm

Explanation:

A cytoplasm is a gel like liquid material that is present within a cell. It is enclosed by a cell membrane. All the organelles such as nucleus, endoplasmic reticulum, mitochondria in a typical eukaryotic cell are embedded inside this liquid material. Cytoplasm consists of molecules for example enzymes which are responsible for breaking down of cellular wastes. It is primarily made up of water and salts. It is responsible for giving the cell it's shape and keeping the organelles in their positions.

Cytoplasm!

Hope this helps!:)

A scientist agrees with the scientific consensus that dinosaurs have scaly skin. Then he discovers a new fossil that indicates a dinosaur had feathers. The scientist refuses to consider the new evidence because it does not agree with the accepted ideas. The scientist is

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The scientist who refuses to consider new evidence, assuming he or she is not biased or incompetent could do it because if there is a big amount of evidence indicating otherwise, this one new piece of evidence is unlikely and they prefer to wait for more evidence or for analysis of whether this current evidence is not false.

thus this scientist is being skeptical (practicing skepticism) by ignoring this new evidence.

Skepticism is based off of invalid data or an experimental error, but in this case the scientist is being biased.
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