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
frez [133]
2 years ago
11

Help- please is crying-

Biology
1 answer:
Wewaii [24]2 years ago
3 0

Answer:

1.b and 2.A

this made my head hurt im so sry if incorrect

Explanation:

hope it helps plz mark brainliest

You might be interested in
What are new stars that are found in the spiral arms and formed from recycled dead star material known as?
Arada [10]

Answer:

population I stars.

Explanation:

A star is a giant astronomical or celestial object that is comprised of a luminous sphere of plasma, binded together by its own gravitational force.

It is typically made up of two (2) main hot gas, Hydrogen (H) and Helium (He).

The luminosity of a star can be defined as the total amount of light radiated by the star per second and it is measured in watts (w). Also, the apparent brightness of a star is a measure of the rate at which radiated energy from a star reaches an observer on Earth per square meter per second. The apparent brightness of a star is typically measured in watts per square meter.

Some of the examples of stars are; Canopus, Sun (closest to the Earth), Betelgeus, Antares, Vega etc.

New stars that are found in the spiral arms and formed from recycled dead star material are known as population I stars. Also, it comprises of association and clusters formed a million or billion years ago in the spiral arms of Milky Way galaxy.

A galaxy can be defined as a collection or group of many billions of stars and other planetary body which are existing independently.

6 0
2 years ago
Read 2 more answers
Hair occur in all mammal except those of rodentia , chiroptera , primata , cetacea​
Alecsey [184]
Hair occurs on all mammals except Cetacea

Hope this helps :)
4 0
3 years ago
Read 2 more answers
Menstruation occurs when.
bogdanovich [222]
The lining of the uterus is shed because an ovum has not been fertilized
8 0
3 years ago
How does the development of the cell theory model how most theories are made?
lora16 [44]

By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

5 0
2 years ago
Bone and blood cells are considered?
GenaCL600 [577]
<span>specialized cells, thats what bone and blood cells are considered </span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Paralysis is a term used to describe the loss of muscle function. if tetrodotoxin's effect is on neurons, why did dr. westwood e
    15·1 answer
  • What is the main difference between aerobic respiration and anaerobic respiration?
    8·1 answer
  • How. To gain my focus on important stuff and how to understand what I'm reading
    7·2 answers
  • Please help me... this is fill in the blank question
    5·1 answer
  • Be able to construct an amino acid
    5·1 answer
  • Describe the features that allow you to distinguish between plant cells and animal cells.
    7·2 answers
  • Can someone help me?
    5·1 answer
  • Explain the relationship between autotrophs heterotrophs and decomposers In 4 to 5 sentences
    10·1 answer
  • Which of the following describes a cnidarian with a polyp body form?
    14·1 answer
  • Which to provide evaluation of force, posture, and duration for the neck trunk and upper arms coupled with muscle function and p
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!