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
krek1111 [17]
3 years ago
11

In science, a hypothesis must be a. correct. b. manipulated. c. controlled. d. testable. Please select the best answer from the

choices provided A B C D
Biology
2 answers:
erik [133]3 years ago
8 0
D. Testable, because a hypothesis is only a persons guess
Y_Kistochka [10]3 years ago
6 0

the answer is letter d

You might be interested in
What is the charge of the nucleus of an atom?Why?
dolphi86 [110]

Answer:

It is positive. B/c nucleus consists of postively charged particles called Protons, and neutral charged (no charge) particles called neutrons. So it has a net positive charge.

Explanation:

3 0
3 years ago
Describe two examples of steroids and their physiological function.
Musya8 [376]
Testosterone is a steroid. Its physiological functions are:

Determines the the gender of a developing embryo

Development of reproductive organs and the prostrate gland in males

Responsible for secondary sexual characteristics in males such as deeper pitch, increased muscle bulk, hair on the upper lip

Regulates normal sperm development

Another is cholesterol. Physiological functions are:

Helps maintain the structure of cells and vessels improving overall health and function in the body.

Percursor to important sex hormones such as testosterone and estrogen.

Used as an insulator around nerves and is absolutely essential for brain function.

Precursor to Vitamin D, which supports a healthy immune and nervous system
6 0
3 years ago
When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. This molecu
labwork [276]

Answer:

b. active transport

Explanation:

Active transport -

It is the movement of the molecules across the membrane via a region of lower concentration towards the region of higher concentration , and in some cases , the flow is independent of the concentration .Its is known as active transport .

This process needs some amount of energy in the form of cellular energy .

Hence , the correct term for the given statement is active transport .

5 0
3 years ago
The combination of a chemical reaction through which an organism builds up or breaks down materials as it carries out its life p
wlad13 [49]
Metabolism

Hope this helps!
5 0
3 years ago
Which compounds has the same empirical formula?
xxMikexx [17]

C4H10 AND C2H5 have the same empirical formula

7 0
3 years ago
Other questions:
  • How many Angstroms are in a meter?
    13·2 answers
  • The specific valve that prevents backflow of blood into the right ventricle when the ventricles relax is the ______________ valv
    6·1 answer
  • A woman is readmitted one week after delivery with a diagnosis of delayed hemorrhage due to retained placental fragments. which
    5·1 answer
  • What is the best reason for assessing a neonate weighing 1,500 g at 32 weeks’ gestation for retinopathy of prematurity (ROP)?
    12·1 answer
  • The frog population in this ecosystem is rapidly decreasing due to pesticide use. Bird watchers in the area express their concer
    9·1 answer
  • The farming methods promoted by the California Ricelands Habitat Partnership are best described as beneficial to both farmers an
    13·2 answers
  • 1.- Fue un físico, teólogo, inventor, alquimista y matemático inglés. Es autor de los Philosophiæ naturalis principia mathematic
    8·1 answer
  • Water breaks down into what 3 things during the light reactions
    13·1 answer
  • HELP
    13·1 answer
  • Why is Earth more likely to support human life than the other planets in our solar system?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!