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
Sladkaya [172]
3 years ago
8

Throwback Question: Scientists theorize that it took a billion years or more for oxygen in the atmosphere to reach the levels of

today. Based on this idea, the first cells could be classified as which of the following?
1 point
aerobic
anaerobic
eukaryotic
protista
Biology
1 answer:
polet [3.4K]3 years ago
7 0

Answer:

anaerobic i think

Explanation:

You might be interested in
Respond to the following based on your reading. A type of tissue called _______ tissue is responsible for communicating between
ryzh [129]
The Answer are :
Nervous Tissue
Immune System
Again, Immune System
Antibody
Antibodies
Vitamins
Vitamin  C
osteomalacia
Chyme
glomerulus
Explanation:
Nervous tissue is one of four major classes of tissues. It is specialized tissue found in the central nervous system and the peripheral nervous system. It consists of neurons and supporting cells called neuroglia. The nervous system is responsible for the control of the body and the communication among its parts.
The immune system protects your child's body from outside invaders, such as bacteria, viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells, and The immune system protects the body from worms, germs, and other agents of harm. The immune system is like a medieval castle. ... The body's first line of defense consists of different types of barriers that keep most pathogens out of the body. Pathogens are disease-causing agents, such as bacteria and viruses. proteins that work together.
Honey has been linked to health benefits like improved heart health, wound healing, and blood antioxidant status. However, consuming too much may cause adverse effects due to its high sugar and calorie content. Thus, it's best to use honey to replace other forms of sugar and enjoy it in moderation.
Antibodies are proteins that recognize and bind parts of viruses to neutralize them. Antibodies are produced by our white blood cells and are a major part of the body's response to combating a viral infection. Antigens are substances that cause the body to produce antibodies, such as a viral protein.
Vitamins are substances that your body needs to grow and develop normally. There are 13 vitamins your body needs. They are. Vitamin A. B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, vitamin B-6, vitamin B-12 and folate)
a disease caused by a deficiency of vitamin C, characterized by swollen bleeding gums and the opening of previously healed wounds, which particularly affected poorly nourished sailors until the end of the 18th century.
osteomalacia
Rickets is a rare disease that causes the bones to become soft and bend. African American infants and children are at higher risk of getting rickets. In adults, severe vitamin D deficiency leads to osteomalacia. Osteomalacia causes weak bones, bone pain, and muscle weakness.
Chyme or chymus is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum. Chyme results from the mechanical and chemical breakdown of a bolus and consists of partially digested food, water, hydrochloric acid, and various digestive enzymes.
The first step in making urine is to separate the liquid part of your blood (plasma), which contains all the dissolved solutes, from your blood cells. Each nephron in your kidneys has a microscopic filter, called a glomerulus that is constantly filtering your blood.
8 0
3 years ago
Read 2 more answers
______ is the process by which nerve cells are coated with far cells that enhances the speed and efficiency of the information t
givi [52]

Answer:

Myelination

Explanation:

The covering of myelin around the axons is called the myelin sheath. This myelin sheath helps in transfer of information faster and also in complex  processes of the brain. The process of myelination begins in the PNS (peripheral nervous system).

The myelinated section are seperated from each other with a gap called nodes of ranvier. Glial cells (oligodendrocytes) forms the myelin sheath in the central nervous system and schwann cells (glial cells) forms the myelin sheath in peripheral nervous system. The propagation of electrical impulse in the myelinated fibers is by saltatory conduction that is from one node to another.

5 0
3 years ago
Read 2 more answers
What Is a Siamese Fighting Fish and it's average lifespan in captivity?
nordsb [41]

Answer:

The siamese fighting fish (also commonly known as betta fish) is a freshwater fish found in some parts of asia. They are known to fight other fish of their kind, hence the name siamese <u>fighting</u> fish. They usually live between 2-5 years in captivity.

5 0
3 years ago
Which part of the plant cell provides protection and structural support
adell [148]

Answer:

cell wall provides protection and structural support

6 0
3 years ago
____ intelligence is defined as involving the skills and knowledge necessary for adapting to one’s physical and social environme
n200080 [17]
The answer is Practical Intelligence. Practical intelligence is the consequence of an exploratory hands-on working style that prompts particular learning. Practical intelligence is the capacity that people use to locate the best fit amongst themselves and the requests of nature.
6 0
3 years ago
Other questions:
  • Critical thinking and problem solving are thinking skills learned in science classes. These skills are key in the pursuit of cre
    12·3 answers
  • Joel always atends the dentists and all his physicians regularly this is a important part of
    7·1 answer
  • Insects are responsible for the destruction of a significant percentage of potential food harvests every year. Please select the
    7·2 answers
  • How does the body prevent the loss of sugar in urine?
    7·1 answer
  • Grasses,shrubs and trees are called producers because they make
    11·1 answer
  • Imagine that one of your parents had Huntington's disease. What is the probability that you, too, will someday manifest the dise
    14·1 answer
  • Factors that affect the diffusion ​
    13·1 answer
  • Which of the following statements correctly describes cytokinesis?
    14·1 answer
  • A Class-A 10 mL pipette is supposed to dispense 10.00 mL of water. A lab technician makes three measurements of the volume that
    13·1 answer
  • Which cell components does genetic screening check?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!