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1 year ago

Grade7 science how populaation changes quiz biotic and abiotic

Biology

1 answer:

Greeley [361]1 year ago

8 0

Answer:

Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations.

Explanation:

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Meiosis is a process that produces gametes. Using the diagram, what do you notice about the cells produced in meiosis?

Verizon [17]

Answer:

The correct option is C) Meiosis produces 4 daughter cells each with half the number of chromosomes of the original cell.

Explanation:

There are two main processes by which cell divides:

1) Mitosis

2) Meiosis

All the cells of the body divide by the process of mitosis except the sex cells. Sex cells divide by the process of meiosis.

Meiosis can e described as a type of cell division in which four daughter cells are formed each having half the number of chromosomes as the parent cell. This is because the cell has to attain half of the maternal and half of the paternal chromosomes at the time of fertilization.

Crossing over and independent assortment are the phenomenon of meiosis which bring genetic diversity among parent and children.

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2 years ago

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Describe how oxygen gas is produced during photosynthesis

masya89 [10]

Answer:

Describe how oxygen gas is produced during photosynthesis?

Photosynthesis entails the reaction between carbondioxide and water which gives glucose and evolve oxygen

Explanation:

6 0

2 years ago

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An engineer is building a new steel skyscraper in a area with a lot of Earthquakes, Compare two systems (fixed based system and

Leokris [45]

Answer:

<h2>Base isolated system</h2>

Explanation:

Fixed based system:-

A fixed-base building (built directly on the ground) will move with an earthquake’s motion and can sustain extensive damage as a result.

Base isolated system:-

A base isolation system is a method of seismic protection where the structure (superstructure) is separated from the base (foundation or substructure).

Hence,

A base isolated system is much more better in a area where there are a lot of earthquakes. 

5 0

2 years ago

Describe the structure of a protein

velikii [3]

Answer:

Peptide bonds and Amino Acids

Explanation:

Primary structure. The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis.

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2 years ago

PLEASE HELP FAST

PolarNik [594]

Answer:

Explanation:

so if you divide the 75 percent tall to 25 percent short and THEN add the 25 medium and 50 short reduce the 100% tall you get ur mom

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2 years ago