1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inessss [21]
3 years ago
8

A DECREASE in the density of a sample of a gas inside a balloon could be caused by A) putting the balloon in the refrigerator. B

) taking the balloon outside on a hot day. C) shaping the balloon into the shape of a dog. D) taking the balloon down to the bottom of the ocean.
Biology
2 answers:
AlladinOne [14]3 years ago
8 0

Answer:

B) taking the balloon outside on a hot day.

Explanation:

GrogVix [38]3 years ago
6 0

Answer:

B

Explanation:

When a mass of air is heated it becomes less dense. This is why a hot air balloon rises in the atmosphere. It is also the same reason why hot air rises and the moisture in it condenses to form clouds. The cooler less dense air mass moves downards (in some convection currents fashion) in to replace the hot rising air.  

You might be interested in
What would happen is tRNA did not work properly?
lorasvet [3.4K]

Ribosomes provide a structure in which translation can take place. ... If you're not yet familiar with RNA (which stands for ribonucleic acid), I highly recommend ... We'll learn a lot more about tRNAs and how they work in the next section. ... How does the right amino acid get linked to the right tRNA (making sure that codons ...

6 0
3 years ago
What causes the difference of humanity in certain areas
jek_recluse [69]

Answer:

Major human proximate causes, such as fossil fuel burning, are conducted by many actors and for many purposes: electricity generation, motorized transport, space conditioning, industrial process heat, and so forth.

Explanation:

6 0
3 years ago
Homologous recombination can be used in the lab to replace a gene of interest with a selection marker. To confirm that the selec
Luden [163]

Answer:

b. A second marker in the knock-out cassette, that if inserted into the genome results in cell death when plated on selective media.

Explanation:

General recombination, also known as homologous recombination, refers to the naturally occurring process of exchange of genetic material between pairs of homologous DNA sequences. This process (homologous recombination) can be exploited by genetic engineering to insert DNA segments of interest at target genes. Moreover, a cassette is a mobile DNA segment containing almost a gene and a recombination site, which is integrated into the <em>locus</em>/<em>loci</em> of interest by homologous recombination. A cassette may contain a DNA segment called 'negative marker' which prevents growth under particular conditions, while a positive marker permits growth under certain conditions. In consequence, a second marker consisting of a drug cassette may be used as a negative marker in order to evidence its insertion by inducing cell death when they are plated in selective conditions.

8 0
4 years ago
when algae lives on a slth it is consirered a mutual symbiotic relationship. why is this an exampkle of mutualism
d1i1m1o1n [39]

Algae living on a sloth is considered an example of mutualism because both of them benefit from each other.

Mutualism is one of the symbiotic relationships in which both the two species living together benefit in one way or another. A considerable example of such a relationship is between algae and a sloth.

The algae provide camouflage to the sloth and protect it from predators while the sloth provides shelter to the algae for its growth. The sloth also gets nutrition from algae which perform photosynthesis and synthesize food.

Another mutual relationship is observed between the aphids and ants. Aphids produce honeydew as a waste product of their diet which is consumed by ants. While ants protect the aphids from predators and parasites.

To know more about mutualism, refer to the following link:

brainly.com/question/94753

#SPJ4

4 0
1 year ago
Which of the following best describes a marine climate?
Drupady [299]
Marine climate tend to has <span>warm winters and cool summers.
Regions with marine climate mostly located in a region with low elevation. Regions with low elevation tend to have higher temperature,  but the existence of water near that region even out the temperature which resulted in moderate level of temperature all year long.</span>
7 0
4 years ago
Other questions:
  • What impact do resources, such as sunlight and water, have on a forest ecosystem?
    11·2 answers
  • The renal papilla empties urine into the
    15·1 answer
  • What is the highest energy phase naturally on earth.
    11·1 answer
  • If a stationary body of water has a constant temperature from top to bottom it is most likely a(n)
    7·2 answers
  • Does oversteaming brocooli kill the nutrients? reddit
    15·1 answer
  • A tragedy of the commons results when individuals choose to use more than their "fair" share of a collective resource. Under wha
    14·1 answer
  • what are 2 benefits of multicellular organisms having some specialized cells rather than all the cells being the same
    7·2 answers
  • In a _____, people use communication primarily to exchange facts and information. a. collectivistic b. feminine culture c. high-
    8·1 answer
  • I need help for number 1 please. If you could just please explain it to me
    10·1 answer
  • Will give brainiest!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!