Define phototaxis!!!

Biology

1 answer:

liubo4ka [24]2 years ago

8 0

Answer:

Phototaxis the bodily movement of a motile organism in response to light, it either moves away or toward the source of light

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What is double fertilisation

Phoenix [80]

Double fertilization is a complex fertilization mechanism of flowering plants. This process involves the joining of a female gametophyte with two male gametes. It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.

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3 years ago

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Describe how climate would be influenced if:

madam [21]

The rate of energy coming from the Sun changes slightly day to day. .It has been suggested that changes in solar output might affect our climate—both directly, by changing the rate of solar heating of the Earth and atmosphere, and indirectly, by changing cloud forming processes.
The axial tilt angle affects climate largely by determining which parts of the earth get more sunlight during different stages of the year Likewise, during winter for the northern hemisphere, there would be fewer hours of daylight because the northern hemisphere would essentially be pointed away from the sun.
If an asteroid were to strike land or a shallow body of water, it would eject an enormous amount of dust, ash, and other material into the atmosphere, blocking the radiation from the Sun. This would cause the global temperature to decrease drastically.
The Sun's irradiance has its greatest effect on Earth's upper atmosphere, while the lower atmosphere insulates Earth from the increased heat. If the Sun were driving Earth's warming, one would expect to see that upper atmosphere getting increasingly hot.\
have a nice day sorry if wrong T_T

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2 years ago

Fill in the blanks: The original organism is called the _____________, and new organisms are called the _____________.

NARA [144]

Answer:

The original organism is called the parent (ancestor) , and new organisms are called the offspring.

Explanation:

Reproduction is one of the characteristics of life. Every living organism tends to give rise to another organism. The organism which gives rise to another organism is termed as the parent. The organism which is born is known as the offspring.

There are two basic methods of reproduction. An organism can give rise to another organism by the method of asexual or sexual reproduction.

During asexual reproduction, identical copies of the parent organism are made. During sexual reproduction, two organisms reproduce to produce non-identical offsprings.

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2 years ago

The human body contains approximately 70% water by weight. water is found inside and outside of cells, and it is able to carry n

Inessa05 [86]

The water is able to leave in and out of the cells because there is a cell membrane splits the bilayer of tissue and then the water start leaving and coming back in again from the stage of osmosis.

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2 years ago

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Anna [14]

Answer:

A.The DNA in the parent cell nucleus makes a copy of itself and is then split between the two daughter cells during meiosis.

Explanation:

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3 years ago

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