4) The simplest type of response is a direct one-to-one stimulus-response reaction. A change in the environment is the stimulus; the reaction of the organism to it is the response. In single-celled organisms, the response is the result of a property of the cell fluid called irritability.
5) During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes. Gametes contain half as many chromosomes as the other cells in the organism, and each gamete is genetically unique because the DNA of the parent cell is shuffled before the cell divides.
6)Producers can make their own food by capturing the sun's energy, but consumers and decomposes can't. Consumers need to eat other organisms to obtain energy. Decomposes are like the recycles of nature. They obtain energy for their own needs while returning simple molecules to the environment.
7)The birds are growing up into a larger bird.
8) Cells manage a wide range of functions in their tiny package growing, moving, housekeeping, and so on and most of those functions require energy. But how do cells get this energy in the first place? And how do they use it in the most efficient manner possible?
9)Aside from the fact that fish,and trees can be aged in similar ways (by counting annual growth rings), new research shows that all three also respond to climate change in similar ways.
10)No we will not be able to survive cause there is no food or water and it is only oxygen of course you will be able to breathe but not eat or drink.
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The answer is all of the above
Hey there,
Paramecium feeds on micro-organisms such as bacteria, algae and yeasts.
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Recombinant DNA technology / DNA cloning; gene cloning; cloning. A technology that uses enzymes to cut and paste together DNA sequences of interest. The recombined DNA sequences can be placed into vectors that carry the DNA into a host cell.
Answer:
The female and male sex cells or gametes are known as eggs and sperm. These cells are formed inside the sex glands and are destined to unite during the fertilization process in order to carry out reproduction in humans.
the male sexual cell is the spermatozoa, they are mobile and can move using their flagellum. Sperm remain alive for 2 or 3 days in the female genitalia. THESE CELLS ORIGINATE INSIDE THE TESTICLES.
Ovules are large, spherical and immobile cells and generally a single egg matures every 28 days, unlike sperm that are generated in large numbers.
Explanation:
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