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
Delvig [45]
3 years ago
7

Please help..

Biology
1 answer:
d1i1m1o1n [39]3 years ago
5 0
1) When a star's temperature or size increases, its luminosity increases. In other words it seems more bright.

2) The electromagnetic spectrum is used to determine different types of light waves (infrared, visible light, x-rays etc.) which produced by different kinds of astronomical objects.
You might be interested in
What is the medium in which sound travels inside a bird's body?
Katena32 [7]
Bird sounds are made in the syrinx, but of course, the air sacs, passageways and  the bird's lungs, also contribute to the production of sounds.

When birds start to sing,the 2 passageways between the lung and the syrinx, closes. Then, the sir is squeezed into the air sacs by the chest muscles. Squeezing the air sacs that surrounds the syrinx forces each of the two thin membranes in the syrinx into the 2 passageways between the lung and the syrinx.This process does not allow air to travel through.Afterwhich, muscles around the syrinx contract and tighten one membrane and pulls it out into the passageway (1 of the passageway). Air in that passageway can now move,which passes quickly over the membrane. That fast moving air causes a vibration, thus, sound is produced.
4 0
3 years ago
Which phrase describes an interaction between the hydrosphere and the
mezya [45]
The answer is B hope this helps you:) I did this test yesterday
6 0
2 years ago
Resumen sobre el agua
Gnom [1K]

Answer:

water is what earth is mainly made of. our bodies are also mainly water.

6 0
3 years ago
Read 2 more answers
All seed plants reproduce using
Lunna [17]

Answer:

They reproduce using seeds

4 0
3 years ago
Biology help needed! Any help you can offer is greatly appreciated!
bearhunter [10]

Answer:

In the second picture, the answer is A to attach to a host cell.

In the third, the fourth and the fifth the answer is D.

Explanation:

6 0
3 years ago
Other questions:
  • Which scientific area is a major force in shaping modern classification methods?
    8·1 answer
  • Name a type of cell division that occurs in prokaryotic cells, in
    10·1 answer
  • Russ went for a run, and Nelly took a nap. They then watched a horror movie together. Usually, Russ and Nelly are about equally
    12·1 answer
  • The long, thin, wax-coated needles of conifers help the trees _____.
    13·1 answer
  • Hemophilia is an X-linked recessive disorder in humans. If a heterozygous woman has children with an unaffected man, what are th
    10·2 answers
  • The production of which substance would most likely indicate anaerobic cellular respiration?
    10·2 answers
  • Name an organism that acts as secondary<br> consumer and a tertiary consumer.
    9·1 answer
  • BIOLOGY
    13·1 answer
  • How does your body ensure that the new cells are the same?
    14·1 answer
  • Darwin suggested that plants pollinated by long tongued insects would benefit by having long flowers. To measure the advantaged
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!