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
Advocard [28]
3 years ago
7

How have conditions for life on Earth changed over time?

Biology
1 answer:
Schach [20]3 years ago
6 0
 The answer is C) both A and B
You might be interested in
Ocean-ocean convergence produces
svetlana [45]

Answer:

oc

onceava edición: no es una 66frase para que me quede en el hospital por la forma en la iglesia que no se si mi vida se hubiera quedado

5 0
3 years ago
Which type of sensory receptor is responsible for smell and taste
kotykmax [81]
D. Chemoreceptor would be the correct option.
5 0
3 years ago
Read 2 more answers
Which families of metals are not so reactive, which allows them to exist by themselves in nature?
denis-greek [22]
‘Noble gases’ are least reactive as their outer shells are fully filled with electrons. These do need to share their electrons from outer shells  with other elements .
4 0
3 years ago
The active form of vitamin d is
madreJ [45]
(CALCIUM)
regulation in the human body. The role of vitamin D is shown in orange. Vitamin D is carried in the bloodstream to the liver, where it is converted into the prohormone calcifediol. Circulating calcifediol may then be converted into calcitriol, the biologically active form of vitamin D, in the kidneys.
8 0
3 years ago
How do green plants produce their own food?​
Viktor [21]

Answer:

Photosynthesis

Explanation:

The process by which land plants produce their own food using sunlight and carbon dioxide is known as photosynthesis. The leaves of green plants contain chlorophyll, which absorbs sunlight for producing food. This food is then used by the plant itself as well as other animals, including humans.

3 0
3 years ago
Other questions:
  • An older adult with dementia is admitted to a nursing home. the client is confused, agitated, and at times unaware of the presen
    10·1 answer
  • Which organisms are prokaryotes?
    14·1 answer
  • What must be added to the plate before examination of amylase production?
    13·1 answer
  • A chemistry journal requires that all new research papers be peer reviewed by other scientists before they are published. This a
    10·2 answers
  • Dna replication is said to be semiconservative. what does this mean?
    9·1 answer
  • Allele frequencies for a particular trait are shown over five generations for a population of sexually reproducing organisms.
    15·1 answer
  • What is the benefit of genetic variation in a population of organisms
    5·2 answers
  • I have an exam during the first block at school. What source of carbohydrate would you recommend her to take?
    15·2 answers
  • Did earthquakes cause Pangea to break apart?
    6·1 answer
  • PLEASE ANSWER THESE SCIENCE QUESTIONS!GIVING BRAINLIST!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!