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NeX [460]
1 year ago
5

If something is worth 3 points on a mutiple choice, can i put 4 answers?

Biology
1 answer:
denpristay [2]1 year ago
3 0

bro....1 answer is enough

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Hydrothermal vents pump super heated salt water into the ocean that is filled with various minerals. Because of this, there is a
pychu [463]
This is absolutely false.
There is a wide diversity of life teaming around hydrothermal vents. These communities include primary producer organisms, but instead of obtaining energy from the sun, these bacteria use a process called chemosynthesis to convert minerals and other chemicals in the water into energy. These bacteria support a wide range of other animal species, including giant tube worms, deep sea mussels, serpulid or “feather duster” worms, and vent crabs, the apex predator of the vent community.
6 0
3 years ago
If two intermediate-colored chickens together produced 100 chicks, how many would you expect to be black?
sergiy2304 [10]

Answer: 25 of the chicks will be black

Explanation: Since the chickens are intermediate in colour, that is they are not black, they are heterozygous. Let B represent the allele for black colour and B represent the allele for blue colour, therefore the genotype of a chicken with an intermediate colour is Bb. A cross between two Bb chicken will produce 1 BB, 2 Bb and 1 bb chicks. 1 BB will manifest outwardly as black, 2Bb will manifest outwardly as intermediate colored while 1 bb will manifest outwardly as blue colored chicks.

Since one out of four chicks are black colored, if the two chicken produced 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25. Therefore, 25 chicks out of 100 will be black.

See the attached punnet square for more information

7 0
3 years ago
In your own words, explain how hiv/aids damages the immune system
Anastasy [175]

Answer:HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.

Explanation:

7 0
2 years ago
A student wants to test the hypothesis that plants need soil to grow. Identify the independent
bija089 [108]

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

7 0
3 years ago
a solution is aa. combination of isotopes. b. chemical reaction. c. mixture in which the substances are evenly spread out. d. mi
Olenka [21]
The answer is c when the substances are evenly spread out.
6 0
3 years ago
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