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
Aloiza [94]
3 years ago
8

Explain: what is a rock is?

Biology
1 answer:
Lady_Fox [76]3 years ago
7 0

A rock is a solid mass of geological materials. It is a natural mass of mineral matter that makes up the earth's crust.

Hope it helped! :)

You might be interested in
Please help I really would appreciate it
vekshin1

Answer:

Light, electric

Explanation:

4 0
3 years ago
Penicillin is Choose one: A. produced by a mold and was discovered accidentally. B. a human-designed antibiotic, synthesized to
NeX [460]

Answer:

Option-A

Explanation:

Penicillin is an antibiotic drug that is derived from the fungal species of Penicillium molds especially the<em> Penicillium notatum</em>.  The penicillin acts by disrupting the formation of the cell wall and thus prevents the growth of the bacteria.

The discovery of penicillin was accidental when he was studying the petridish of staphylococcus and he found that due to avoidance while the experiment, molds grew in the petridish.  The area around the mold was clear and clear rings without the bacteria were easily observed. This lead to the discovery of the penicillin compound.

Thus, Option-A is the correct answer.

4 0
3 years ago
Why does darkness affect the light-independent reactions of photosynthesis?
notsponge [240]

Answer:

The correct answer would be Light independent reactions require the energy gathered in the thylakoids.

Photosynthesis can divided into two sub-processes or reactions:

Light-dependent reaction: It converts solar energy into chemical energy that is, ATP (adenosine triphosphate) and NADPH with the help of photolysisis of water. It takes place in thyllakoid membrane of the chloroplast.

Light-independent reaction: It fixes carbon obtained from carbon dioxide into the food or glucose with the help of enzyme RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase).

It takes place in the stroma of the chloroplast and does not require the involvement of light however, it requires the products (ATP and NADPH) of the light reaction.

Fixation of 1 molecule of glucose requires 6 molecules of carbon dioxide, 9 molecules of ATP and 6 molecules of NADPH.

So, darkness indirectly affects the light-independent reaction.

5 0
2 years ago
Read 2 more answers
1 2.1.5 Quiz: Specialized Cells and Tissues
nikdorinn [45]

Answer:

B. All of its cells must work together

5 0
2 years ago
Choose the arteries in the order that an erythrocyte passes through traveling from the aorta to the brain: (1) Basilar artery, (
Harlamova29_29 [7]

Answer:

The sequence order of the arterial vessels in the order leading from the aorta to the brain is: 2,4,5,1,3.

Explanation:

Correct Answer: In order, the sequence of vessels leading from the aorta to the brain is: 2,4,5,1,3.

2 -The brachiocephalic artery (same as brachiocephalic trunk and innominate artery) is an artery found in the mediastinum region where blood is supplied to the right arm and the head and neck

4 - The right subclavian artery arises from the arch of the aorta directly which is a branching of the brachiocephalic trunk and is on the left lies posterior to the insertion of the scalene muscle anterior on the first rib.

5 - The vertebral arteries are arteries majorly of the neck. Usually, this arteries originate from the subclavian arteries. It functions so as to supply the vertebrobasilar vascular system, thks vertebral arteries supply blood in this order to the upper spinal cord, brainstem, cerebellum, and posterior part of brain.

1- Meanwhile basilar artery carries oxygenated blood from 5 to the cerebellum, brainstem, and occipital lobes.

3 - Several arteries at the bottom (inferior) side of the brain is called Circle of Willis and it is the joining area of several arteries in the brain. Branching of smaller arteries from the Circle of Willis happens here as internal carotid arteries that supply oxygenated blood of more than 80% of the cerebrum.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Where does the heat that warms your body come from ? explsin your answer?
    12·1 answer
  • Which of the following regions experiences its greatest solar intensity in late december?
    15·1 answer
  • Plants undergo a process called photosynthesis, which helps them grow. Plants grow best when they are exposed to sunlight. How d
    9·2 answers
  • How do the plant cells placed in a medium for tissue culture change in terms of their degree of specialized?
    11·1 answer
  • Fats supply energy, cushion vital organs and protect them from injury, add flavor to food and move through the _______ system sl
    6·1 answer
  • The heart is an example of which level of organization within an organism
    6·1 answer
  • Contrast the sizes of the chromosomes of bacteriophage λ and T2 with that of E. coli.
    9·1 answer
  • PLSSS HELP ASAP IF YOU TURLY KNOW THISSS
    7·1 answer
  • What is not a main principle of the cell theory?
    13·1 answer
  • 9. Draw brackets from left to right to signify the codons in this amino acid chain (please someone help) (No Sending LINKS!)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!