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Stolb23 [73]
2 years ago
5

Please help

Biology
2 answers:
leva [86]2 years ago
3 0
I believe it that the answer is C. Hope this helps
Norma-Jean [14]2 years ago
3 0

Answer:

The light from Star 2 reaches Star 1 in 63 years

Not quite sure tho

Explanation:

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Alkaline pancreatic juices work in ___________
sergiy2304 [10]

Answer:

The correct answer will be Option-C.

Explanation:

The pancreas is an organ which plays an important role in the digestion of the food.  Pancreatic juice is secreted by the pancreas which contains digestive enzymes as well as the sodium bicarbonate (base).

The sodium bicarbonate is required for the digestion of the food as after the acidic digestion of the food in the stomach, the food chyme enters small intestine. The inner lumpen is not structured to handle the acidic chyme so sodium bicarbonate neutralizes the acid chyme that entered the lumen of the small intestine.

Thus, Option-C is the correct answer.

4 0
3 years ago
Why an ecosystem requires a constant input of energy
pychu [463]
The ecosystem requires a constant input of energy because energy cannot be stored. The enrgy always gets converted for supporting life in the ecosystem. Some amount of energy is also lost during this conversion. So if there is not a constant supply of energy, then the ecosystem will ultimately breakdown. In case of humans, the energy is received by consuming food. The energy of the food geets converted to the enrgy that helps a human being to complete his daily chores. So energy is being lost at every step. To regain this energy the humans have to eat food regularly. This way the humans need a constant supply of energy to survive. It is the same in the case of all living things in the ecosystem.
3 0
3 years ago
I need the order of which has more mass:a proton neutron or electron.In greatest to least.I don't need the numbers tho.Thank you
IgorLugansk [536]
Neutron, Proton, Electron
6 0
3 years ago
A caldera is a large volcanoe that forms at a divergent plate boundary true or false
netineya [11]

Answer: false

Explanation:

8 0
3 years ago
What structure is most important in forming the tetrads?
Vladimir79 [104]

Answer:

The correct answer will be option- synaptonemal complex.

Explanation:

The tetrad arrangement of the genetic material in an organism is mediated by a highly conserved structure known as the synaptonemal complex.  The synaptonemal complex is formed during the prophase I of the meiosis I which attaches the chromatin of the homologous chromosomes.

The synaptonemal complex is a proteinaceous structure which is formed by the two lateral ladders like elements with a central portion composed of the central element. The chromatin gets attached to the lateral elements while the central a portion bridge space between the two ladders thus help in the formation of the tetrad.

Thus, option- synaptonemal complex is the correct answer.

4 0
3 years ago
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