BIOLOGY MIDDLE SCHOOL

What is the difference between active and passive transport ?

Answers

Answer 1
Answer: Active transport requires energy passive transport does not
Answer 2
Answer: Active has excoytosis, endocytosis,phagecytisis. And pssive has osmosis, diffusion hypotonic,hypertonic, and isotonic

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What is the egg's role in reproduction​

Answers

Answer: Forming the embryo and providing DNA.

Explanation: The egg is a cell that is used to reproduce. It is the very beginning of what will become the embryo and eventually the baby. The sperm fertilizes the egg and contributes 50% of the embryo DNA to the ova (the other 50% of DNA comes from the egg, however sperm only contributes DNA to the egg during the fertilization process whereas the egg has a much more important role). The sperm and egg meet, the egg becomes fertilized and loaded with the DNA it needs to form. The egg provides nutrients needed for the embryo to grow until it is fully gestated.

The heat from the Sun must pass through the vacuum of space before it reaches the Earth. Which process is illustrated in this example?a.Induction
b.radiation
c.Conduction
d.convection

Answers

The question says, the heat of the sun must pass through the vacuum space before it reaches the earth. Which process is illustrated in this example. The correct option is B, that is, radiation. Radiation is the mode of transmission of heat energy as electromagnetic waves through space or through a material medium. Thus, the heat from the sun get to the earth surface through radiation.

the answer is b because radiation is the electromagnetic radiation from the surface of an object which is due to the object's temperature. It is also the only type of heat transfer that can move through the vacuum of space because electromagnetic waves to not need matter to travel.

A community includes A. all of the living organisms in a specific place at a specific time.
B. only the plants in a specific place at a specific time.
C. all plants, animals, minerals, and water in a specific place at a specific time.
D. only the animals in a specific place at a specific time.

Answers

It includes all the living organisms in a specific place at a specific time :) A population is all of one species, and an ecosystem is all the plants, animals, minerals, and water.
the answer that you want is A.

which long term environment change may cause may cause animals adapted to cold weather like polar to survive and flourish

Answers

Answer:

its Ice Age

Explanation:

An ice age is a long period of reduction in the temperature of the Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet.

Answer:

A

Explanation:

ng cells require constant access to energy in order to remain alive. Which statement BEST describes why cells need a constant supply of energy? A) Without energy, cells would not be able to access food resources. B) Without energy, cells would be forced to enter into a state of dormancy. C) Energy is required to process genetic information--without an active DNA molecule, cells will be unable to function. D) Energy is required in order to maintain homeostasis--without a constant, organized internal state, the cell will die.

Answers

D) Energy is required in order to maintain homeostasis--without a constant, organized internal state, the cell will die.

Which is the most important thing to do right away if a student spills HCI on his shirt

Answers

The most important thing to do right away if a student spills HCL on his shirt would be to remove the shirt and rinse the skin with water in case the HCL soaked through.

Answer:

A on edge 2021

Explanation:

Remove the shirt and rinse skin with water
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