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4 years ago

What consists of sperm cells and egg cells?

2 answers:

7 0

Sperm cell consists of a head, a midpiece and a tail, which contains enzymes used for penetrating the female egg

lesya692 [45]4 years ago

3 0

Sperm cells of mammals consists of a head, a midpiece and a tail. The head contains enzymes that is used in order to penetrate an egg cell. The egg cell, on the other hand, consists many nutrients and half of the chromosomes that are found in the female body.

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Why the skin is categorised as an organ?

DaniilM [7]

The integumentary system (skin) has been called a membrane and an organ but, it is generally considered a system because it has organs that work together as a system. It is sometimes considered an organ because it contains several types of tissues and a membrane and it covers the body.

8 0

3 years ago

Read 2 more answers

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

3 years ago

How many kingdoms of bacteria are ther?

777dan777 [17]

Answer:

The scheme most often used currently divides all living organisms into five kingdoms: Monera (bacteria), Protista, Fungi, Plantae, and Animalia.

Explanation:

8 0

3 years ago

The chromosomes of offspring are not identical to those of their parents or siblings because ______ is shuffled during meiosis.

tigry1 [53]

The chromosomes of offspring are not identical to those of their parents or siblings because genetic information is shuffled during meiosis.

Meiosis can be described as a cell division process by which gamete cells divide. The number of chromosomes is reduced to half in this cell division process.

During the process of meiosis, genetic information is shuffled between non-sister chromatids of the homologous chromosomes. This shuffling process is referred to as crossing over. A new combination of alleles is formed due to the process of crossing over.

It is due to the process of crossing over that the organisms produced are not identical to each other or the parents. Genetic diversity is important in order for populations to survive which is possible through the process of meiosis.

To learn more about genetic information, click here:

brainly.com/question/28011061

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8 0

1 year ago

A stem growing up and out of the soil, away from gravity is an example of a _______.

Tomtit [17]

A tropism is a movement of an organism toward or away from a stimulus. A positive tropism is when the organism moves toward the stimuli. A negative tropism is when the organism moves away from the stimuli. So, your answer will be negative tropism, since the stem is growing up and out of the soil, AWAY from gravity.

5 0

3 years ago