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gavmur [86]
3 years ago
7

Which of the following describes a difference between galaxies and solar systems?

Biology
2 answers:
melamori03 [73]3 years ago
7 0

Answer:

A galaxy is a collection of millions of stars, while a solar system is a star and the planets around it.

Explanation:

LuckyWell [14K]3 years ago
3 0

Answer:

A galaxy is a collection of millions of stars, while a solar system is a star and the planets around it.

Explanation:

You live in a solar system, we revolve around our sun and so do the other planets making up a solar system

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"How many bubbles would both plants produce at the following depths: - 13 meters, 20 meters, 28 meters"
sdas [7]

Answer:

39, 45

27, 42

6, 7

Explanation:

In 13 meters depth, there are 39 bubbles produced per plant in one minute and 45 bubbles are formed per plant in one minute. In the depth of 20 meters, there are 27 bubbles produced per plant in one minute and 42 bubbles are formed per plant in one minute. In 28 meters depth, there are 6 bubbles produced per plant in one minute and 7 bubbles are formed per plant in one minute.

5 0
3 years ago
If you were making a product of artificial "Grow-Lites" for plants, what color light should
UNO [17]

Answer:

<u>-blue and red light</u>

Explanation:

Plants produce sugars or carbohydrates during the process of photosynthesis. They absorb light energy from the electromagnetic spectrum with pigments within the thylakoid membrane, like chlorophyll a, chlorophyll b.

Chlorophylls are made of ringed molecules chlorine, a hydrogenated form of porphyrin with a magnesium ion bonded to four atoms of nitrogen. Chlorophyll a shows the most absorption of red light  (642 nm) and blue light (372 nm); while chlorophyll b shows the most absorption at 626 nm and 392 nm.  

Different types of chlorophyll sidechains change the molecules' absorption ranges; A's methyl group is bound at carbon 7,  B's aldehyde (CHO) ring is bound at carbon 7.  Both absorb light from orange-red and violet-blue wavelengths. As such, the best light wavelengths for photosynthesis are within the blue and red wavelengths (425–450 nm) and (600–700 nm).

8 0
3 years ago
What must take place in the lungs prior to the newborn's first breath? A. Blood must be drained from the alveolar capillaries B.
Iteru [2.4K]

Answer: Drainage or absorption of amniotic fluid

Explanation: Amniotic fluid act as a cushion to a growing foetus and provides the foetus with nutrients and biochemical products from the mother via the blood vessels of the placenta. When the date of baby delivery grows closer the lungs absorbs some of the fluid. Soon after birth the newborn's first step to independence begins with breathing on its own.They gasp and cry taking in air that fills the lungs. This expels the remaining amniotic fluid that was in the lungs and begins its own independent breathing.

3 0
3 years ago
Which of the following is not a unifying feature of protists
densk [106]
B because they are prokaryotes but cannot be classified as animals, plants, or fungi.
7 0
3 years ago
Glucagon is a hormone that is released when the level of glucose in the blood is low. Glucagon uses a G protein signaling pathwa
allsm [11]

NOTE: the steps of the signal transduction pathway to be arranged is in the attached file.

Answer:

The correct signal transduction pathway in order from the releasing of glucagon into the blood to the promotion of glycogenolysis includes:

- Glucagon binds extracellulary to G- protein coupled receptor.

-G protein releases GDP and binds FTP

-Activated G protein activates adenylate (adenylate) cyclase.

-Adenylate cyclase converts ATP to cAMP.

-Cyclic AMP activates protein kinase A

- phosphorylase kinase phosphorylates glucogen phosphorylase, an enzyme needed for glycogenolysis.

Explanation:

As carbohydrates from food consumed is digested, it's end product, the glucose, is assimilated into the cells for energy production through the help of insulin in a process called glycolysis. Excess of glucose is stored in the liver as GLYCOGEN.

In cases where there is reduced sugar in the blood (hypoglycemic state) another pathway (known as glycogenolysis through

GLUCAGON hormone) is initiated to elevate the concentration of glucose in the blood.

7 0
3 years ago
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