Ask question

Ask question

All categories

3 years ago

13

Why do constellations in the night sky change seasonally? A. Earth rotates around its axis. B. Earth revolves around the sun. C.

Earth moves closer to the moon. D. Earth tilts on its axis. 5 / 9 0 of 9 Answered

1 answer:

aliina [53]3 years ago

4 0

Answer:

B) earth revolves around the sun

You might be interested in

Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

3 0

2 years ago

Examine the image of the Hertzsprung-Russell diagram.

SashulF [63]

Answer: A. Cool

Explanation:

The diagram shows that moving from the left to the right indicates a lower temperature and the arrow is pointing to stars to the right which means that they are cool in comparison to those on the left.

Red stars like the one being pointed to are the cooler stars with temperatures of less than 6,000 Kelvin as opposed to blue stars which are very much hotter and go above 10,000 Kelvin.

8 0

2 years ago

Ricardo listed characteristics of three types of fungi in a chart.

Mumz [18]

Answer:

The answer is D

Explanation:

On Edg it is D

4 0

2 years ago

Read 2 more answers

The three reactants needed for<br> photosynthesis are<br> and

Marat540 [252]

Answer:

Light energy, Water, and Carbon Dioxide/Chlorophyll

Explanation:

Photosynthesis uses 12 water molecules, 6 Carbin Dioxide molecules and light energy so it can produce one glucose, six water and oxygen molecules. This can be expressed and represented by 12H2O + 6CO2 + light energy = C6H12O6 + 6H2O + 6O2

Vital to remember that the produced oxygen is from the original water molecules and not the carbon dioxide.

3 0

2 years ago

What must happen before meiosis can begin

Likurg_2 [28]

Question

What must happen before meiosis can begin

DNA replication must come first before meiosis to happen.Previous to replication, a germ cell contains two copies of each chromosome, a maternal copy. and a paternal copy.

4 0

3 years ago

Read 2 more answers