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
ziro4ka [17]
3 years ago
11

How old are the oldest known minerals

Biology
1 answer:
inna [77]3 years ago
6 0
The oldest known minerals are 4.4 billion years old.
You might be interested in
The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of
Kay [80]

Answer:

If it helps, the answer is Mutualism (let me know if it is for some reason incorrect)

4 0
3 years ago
What is the typical resting membrane potential in a neuron
jenyasd209 [6]
In most neurons the resting potential has a value of approximately-70mV
5 0
3 years ago
What is the sequence the organs that are involved in each step of digestion
Cloud [144]

Answer:

The gastrointestinal tract comprises of Mouth-Esophagus-Stomach-Small intestine-Colon-Rectum.

Liver, pancreas and gallbladder are solid organs of digestive system.

Explanation:

Digestion is the process involved in the conversion of large complex food molecules into smaller nutrients that can be used by body cells for survival and carry out their function. The digestive system comprises of various subsequent organs that digest the food.

  • Digestion starts in mouth where salivary glands digest the carbohydrates.
  • The food moves from mouth to stomach through alimentary canal known as esophagus. It includes peristalsis movements.
  • The stomach mixes the food with digestive juices and move the chyme to small intestine.
  • The small intestine mixes the food with juices secreted from pancreas, liver and intestine and pass it to large intestine.
  • The large intestine digest the water content from indigested food and pass the reamining to rectum.
  • The rectum store the undigested food and excrete it through anus.

5 0
3 years ago
How does agriculture contribute to species loss?
rosijanka [135]

Answer:

The animal agriculture industry is killing our environment and putting every species on this planet at risk of extinction. The animal agriculture industry's pollution of our air, water and land, along with deforestation and soil degradation, all contribute to habitat loss and species extinction.

Explanation:

7 0
3 years ago
What stimulates a skeletal muscle cell to contract?.
mars1129 [50]
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
5 0
3 years ago
Other questions:
  • In your own words, explain how the frequency of an ocean wave determines the motion of a surfer on the wave?
    7·2 answers
  • I need help with this question
    12·1 answer
  • What will be the end product(s) of the following dehydration synthesis reaction?
    7·1 answer
  • How do the circulatory and respiratory systems work together for gas exchange?
    13·2 answers
  • Help ME QUICK!
    8·2 answers
  • 2. Which of the following is a physical property of matter that is always the same regardless of size
    8·1 answer
  • 4 points
    12·1 answer
  • Write a 4 sentence summary of point source pollution.
    11·1 answer
  • Blood
    12·2 answers
  • Which equation represents the photosynthesis process?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!