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arlik [135]
4 years ago
12

1. Why don't the planets fly out of the solar system?

Biology
2 answers:
LenKa [72]4 years ago
7 0

Answer: because of the gravitational pull of the sun.

Explanation:

QveST [7]4 years ago
5 0

Answer: Gravity. The sun is rather large, so its gravity has a strong pull that keeps all the planets in order.

Explanation:

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What are two ways that moving water can be used as an energy source
Zigmanuir [339]
I may be wrong but i think that they are 
1. turbines are added under the water and when the movement of water effects that is uses power to gather electricity 
2. there are big barries in the water that spin the water around and then that in turn creates energy
6 0
3 years ago
Which of the following are mixtures?
yuradex [85]

Answer:

air, oxygen, water, sand. and tea

8 0
3 years ago
A large family has a history of multiple aneuploid diseases such as Down Syndrome, trisomy-18 and Klinefelter Syndrome (XXY). Th
SpyIntel [72]

Answer:

Genes coding for proteins involved in chiasma formation.

Explanation:

Chiasma is the connecting link between two non sister chromatids from homologous chromosomes. At chiasma chromosomal crossover takes place in which the genetic material is exchanged between the chromatids. During meiosis aneuploidy occurs if chiasma is absent or impaired due to a mutation in genes encoding for proteins involved in chiasma formation.

Aneuploidy is characterised by presence of abnormal number of chromosomes in cells. They can be 45 or 47 in number apart from the usual 46. Due to impaired chiasma, chromosome pair fails to separate and is passed on to the egg or sperm as it is hence there is one gamete with an extra chromosome and one gamete with a less chromosome. Aneuploidy can result in many genetic disorders like three copies of chromosome 21 can result in Down syndrome.  

5 0
3 years ago
An organism is discovered that thrives in both the presence and absence of oxygen. Interestingly, as oxygen is removed from the
melisa1 [442]

Answer:

It is a facultative anaerobic organism.

Explanation:

This organism makes ATP (energy provider molecule) by aerobic respiration in presence of oxygen, but when oxygen is removed it is capable of switching to fermentation (sugar consumption increases and growth rate decreases).

This happens because fermentation is much less effective at producing ATP and therefore there is not enough energy for growth.

This organisms are called facultative anaerobic.

Organisms with this type of metabolism include bacteria like Escherichia coli and Salmonella or yeast like Saccharomyces cerevisiae.

6 0
4 years ago
I need help asap
eduard

Answer:

A

Explanation:

any form of asexual reproduction lowers rates of genetic diversity

(not an expert but I think that's it, we are finishing up invertebrates in biology right now so it's fresh on my mind)

5 0
3 years ago
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