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
mart [117]
3 years ago
12

The simplest level of organization and basic unit of life is the ___________.

Biology
2 answers:
Lesechka [4]3 years ago
6 0

The answer is A, the cell

konstantin123 [22]3 years ago
5 0

Answer:

A. cell. is the correct option. ◉‿◉

You might be interested in
Which is a density-independent factor?
Bogdan [553]
It’s D , hurricane .
4 0
3 years ago
What part of the intestinal tract prevents backflow of food from the stomach into the esophagus? a. diaphragm b. lower esophagea
lara31 [8.8K]

Answer:

The correct option is b. lower esophageal sphincter

Explanation:

The esophagus is the initial part of the digestive tract and its function is the transport of the alimentary bolus from the pharynx to the stomach, through the thorax and avoid the reflux thereof. It begins and ends in two sphincter structures, the upper esophageal sphincter and the lower esophageal sphincter, which separate it from the pharynx and stomach. The lower esophageal sphincter has two functions: relax during swallowing and prevent reflux of the gastric contents into the esophagus in the postdeglutory period. After swallowing, there is a relaxation of the lower esophageal sphincter, pressure dropping to levels similar to those of the gastric fundus, which allows the bolus to enter the stomach. This relaxation lasts a few seconds and is followed by a strong contraction that prevents backflow of food.

4 0
3 years ago
Read 2 more answers
Suggest an intracellular regulatory molecule (from your text) that growth factors might stimulate to control cell division. Plea
vlabodo [156]

Answer:

E2F transcription factors  

Explanation:

The E2F transcription factors (TFs) encode intracellular factors associated with the control of the cell cycle. E2F are TFs that bind to promoter consensus sequences in order to activate transcription. These TFs control the expression of target genes involved in cell proliferation including, among others, genes for DNA replication and mitotic activation. Moreover, the E2F proteins also may act as a link between cell fate and the cell cycle. The retinoblastoma (Rb) is a protein that modulates the activity of the E2F family of TFs, and it has been shown that the Rb/E2F pathway is a key molecular mechanism associated with cell proliferation.

7 0
3 years ago
Match the term in Column 1 to the corresponding statement in Column 2.​
klasskru [66]

Looks like the order they appear in is the correct order.

1. Question-wording bias

2. Under-coverage

3. Response bias

6 0
3 years ago
In a published epidemiologic study investigating infertility related to sexually transmitted diseases (STD), the authors state t
s2008m [1.1K]

Answer: That a STD is not contagious but can be given by blood bond in other words like if you kiss someone and they have blood on there lip or a sore you can get it like that or if you have finger to finger for example holding hands and they have a little wound there would be a 57% chance they would get the STD. Hopes this helps!

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which structure allows lymph from the lower right limb to enter the bloodstream? a. thoracic duct b. right lymphatic duct c. rig
    13·1 answer
  • Which is an example of radiation?<br> A -snowman<br> B- CampFire<br> C-Cooking<br> D- Walking
    12·2 answers
  • The left lung differs from the right in that the left lung has ________.
    6·1 answer
  • Consider a series of metabolic events during fasting. Within a few days after a fast begins, nitrogen excretion accelerates to a
    5·2 answers
  • A biochemical explanation of the cause of mood disorders generally focuses on regulation problems with .
    15·1 answer
  • Which of the following is true? Electrical impulses in the heart cause the muscles to contract. The time of electrical recovery
    9·1 answer
  • How does overtillage harm soil?
    10·2 answers
  • How does artificial selection supports Darwin's hypothesis ​
    10·2 answers
  • Somatic cells in humans contain ____ chromosomes and an example is ______.
    6·1 answer
  • In the USA, many people want to cut their
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!