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
Alinara [238K]
3 years ago
12

Help me please !I’ll mark you brainly

Biology
1 answer:
grigory [225]3 years ago
4 0

Answer:

1 is b

2 is c

3 is either b or c

i don't really remember 4, sorry

Explanation:

You might be interested in
Which gland can be found on the face, chest, and back? holocrine apocrine merocrine No answer text provided.​
Alexxandr [17]

Answer:

The sebaceous glands are holocrine glands that produce sebum, a semiliquid mixture of glandular cell debris containing glycerides, free fatty acids, wax esters, squalene, cholesterol, and cholesterol esters. The largest and most numerous sebaceous glands are found on the face, scalp, chest, and back.

4 0
3 years ago
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0037 m. calculate the number of molecules inside th
Talja [164]

First, let calculate the volume of the rod shaped-bacteria:

S = length of the bacteria * surface of its side = 4.1 * (0.45 *0.45 * 3.14) = 2.6 µm3

Now, let's convert the moles into molecules (with Avogadro's law):

0.0037mol/L = 0.0037 * 6.023 *10^23 = 2.22 *10^21 molecules / L

Now let's convert The volume and the concetrnation into µm3 (molecules / µm3)

1 L = 1 dm3 = 1000 cm3 = 1000000 mm3 = 10^9 µm3

so 2.22 *10^21 molecules / L = 2.22 10^ 12 molecules / µm3

The answer is  2.22 10^ 12 molecules / µm3

8 0
3 years ago
What names are used for the top process (requiring oxygen) and the bottom process (taking place without oxygen)?
lys-0071 [83]

Answer:

Processes that takes place with oxygen is aerobic and processes that takes without oxygen is anaerobic.

Glycolysis and Krebs Cycle produces 2 Atp and ETC produces 34 Atp

4 0
3 years ago
What happens to matter and energy in a food chain and food web?
dusya [7]
It gets transferred through out animals
hope this helps
4 0
4 years ago
What will happen when the membrane and transporting substance meet?
horrorfan [7]
The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Changes in the genetic make-up are normally_____to the organism.
    8·2 answers
  • What are some unique characteristics of kelp forests?
    5·1 answer
  • Although generally not considered to be alive,a _______ is studied alongside other microbes such as bacteria
    7·1 answer
  • Molecules that do not contain carbon Are <br> called in organic true or false
    10·2 answers
  • What type of organism is a primary consumer?
    14·2 answers
  • In gel electrophoresis, how is DNA cut into smaller pieces?
    7·1 answer
  • I need help on two of these please i give 20 points
    7·2 answers
  • How is surface water naturally purified?
    15·2 answers
  • Water, carbon dioxide, oxygen, and some other substances can pass through the cell wall. _________________________ (true or fals
    5·1 answer
  • A flowering yucca plant and a yucca moth have a relationship. The adult female moth lays eggs in the plant, and the
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!