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worty [1.4K]
3 years ago
10

During what phase of the moon does a lunar eclipse occur?

Biology
1 answer:
ss7ja [257]3 years ago
6 0

Answer:

A lunar eclipse happens when the moon passes into the Earth's shadow. Therefore this happens during a full moon, when the illuminated side of the moon is facing the Earth. The sun, Earth and moon have to lie along a straight line.

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which term describes this example? a rabbit's cells have two sex chromosomes that are different. A.homozygous dominant B.homozyg
solniwko [45]

Both answers C and D are correct, however, answer D makes more sense.

7 0
3 years ago
Where should the origin of the swim bladder be placed on the phylogenetic tree?
dolphi86 [110]

Answer:

At the base of Actinopterygii

*This is a unique characteristic of this group.

Explanation:

A peculiar characteristic organ observed in ray-finned fish (as well as in Sarcopterygii, or lobe-finned fish) but not in cartilaginous fish like shark is the swim bladder.

This organ is often described to be a sac containing gas. It helps these set of fish adjust its buoyancy and its position in the water by regulating the concentration of gas present in it.

The swim bladder is formed as a pouch coming off the embryonic digestive tract, and in chondrosteans and holosteans, with a set of teleosts e.g. the eels, it maintains an open pathway to the esophagus. In majority of the bony fish, the swim bladder is totally sealed off, as gas levels in their swim bladder are regulated by producing gas into the bladder via a network of capillaries, the rete mirabile (Latin word for "marvelous net").

The swim bladder is homologous to the lungs of tetrapods. Since they are formed in the same vein. Few fishes that have an open swim bladder employs it as a breathing organ.

6 0
3 years ago
A student records a physical property of a rock as 2.2 N.
Orlov [11]

Answer:

A

Explanation:

The N (2.2 N) is Newton. Newton is weight.

5 0
2 years ago
A mutation may result if the molecule shown is exposed to
goblinko [34]
A mutation may result change in the way you look, you could lose sight, could be born with some genetic issues.
6 0
3 years ago
Scientists recorded the size of a population of house finches in a forest ecosystem from the years
Evgen [1.6K]

Answer:

Limiting variables include a low supply of food and lack of room. Limiting variables may reduce birth rates, increase death rates, or contribute to emigration.   Limiting factors determine a population's carrying capacity. Recall that the population grows exponentially when there are no limiting factors.

Explanation:

Hope this helps you!

7 0
3 years ago
Read 2 more answers
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