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
siniylev [52]
2 years ago
12

Megan wants to see if mice that are fed food A or B grow at a faster rate. She measures the mass of the mice on day 1,

Biology
1 answer:
Rama09 [41]2 years ago
8 0

Answer:

<u>No, there is no control group.</u>

Explanation:

To test various theories, experiments are usually conducted under a number of different conditions. Several considerations must be established when planning studies to ensure reproducibility, accuracy, and validity of findings.

For example, while controls are kept constant, or unmanipulated. Also, separate independent variables are strictly altered and analyzed - this guarantees validity and may show whether external influences affected the experiment. Here the variable being altered or measured is the food, and the resultant weight is the factor being observed.

You might be interested in
A person has begun eating a meal that contains starches, fats, proteins, and a
Elza [17]

The journey of the food through the digestive system will actually digest the food. The rest will be given out as feces.

<h3><u>Explanation:</u></h3>

The digestive system actually consists of digestive tract and Digestive glands. The processes that are associated with digestive system is - ingestion, digestion, absorption, assimilation and egestion.

The food that is taken is first smashed and chewed into a rough bolus by mixing with saliva. The salivary amylase slightly digests the starch into dextrin.

Then the food is engulfed through the oesophagus into stomach. Inside stomach, the food is mixed with an enzyme pepsin and HCl. Pepsin digests the proteins into peptones and peptides. The food is converted into a bolus and transported into duodenum.

In duodenum, there are several enzymes from small intestine and pancreas breaks the fats into fatty acids, proteins into peptides and starch into carbohydrates like glucose. They are absorbed and the undigested substances are left over ad feces.

3 0
3 years ago
Put each tile to the correct location.
Valentin [98]

Answer:

A) A tentative statement used to guide a scientific investigation is called scientific hypothesis.

As hypothesis is a proposed details of a phenomena, it can guide us in one way or another to carry out the scientific investigation.

B) Makes prediction about future events is scientific hypothesis.

Scientific hypothesis bases on the observation made predicts about future events, which could be either true or false.

C) Can be tested many independent researches is a scientific theory.

A scientific theory is developed when it has been passed through many researches and had gained acceptance too.

D) Both Scientific theory and hypothesis are based on the observations of the natural phenomena.

Firstly, an observation is made based on natural phenomena, which leads to questions, then research or study is carried out to answer these questions leading to the formation of a hypothesis which upon successful  testing forms a theory.

E) Scientific theory is a well-established highly reliable explanation.

It a highly sustained explanation based on facts of nature, that are confirmed via a lot of experiments.

5 0
2 years ago
True or false, DNA is single stranded
Strike441 [17]
False
hope this is helpful
7 0
3 years ago
Read 2 more answers
1. List 4 classes of animals reared in the Caribbean ___________________________________________________________ _______________
NNADVOKAT [17]

Answer:

1. Pigs, Sheep, Goats, Cattle

2. The purpose of rearing pigs is to utilize them for human food but also supply skin, fat and other materials for use as clothing or leather, ingredients for processed foods, cosmetics, and medical use.

3. <em>Breeding</em> - when animals mate and then produce offspring.

<em>Species</em> - Organisms that have lots of characteristics in common, and can mate to produce fertile offspring.

<em>Herd</em> - a social group of certain animals of the same species, either wild or domestic.

Explanation:

4. Bovine - Cattle, Goats, Pigs

   Ovine - Sheep

   Equine - Horses and other members of the horse family

8 0
2 years ago
In which phase is your project complete and you are ready to show the results to the world
mel-nik [20]
The final phase the 5th phase I think
8 0
3 years ago
Other questions:
  • Breathing rate is constantly being monitored and adjusted in the human body which result in
    14·2 answers
  • The hormone adrenaline can affect only cells with.
    13·1 answer
  • How does the cell regulate nutrients and water
    9·1 answer
  • How is the plant cells central vacuole like an animals bladder?
    5·1 answer
  • Why was the cow insulin an effective substitute for the human insulin?
    15·2 answers
  • Where in the Cell is DNA found?<br> Mitochondria<br> Ribosome<br> Nucleus<br> Cytoplasm
    14·2 answers
  • Does my dog like me?
    13·2 answers
  • Question 10 of 10
    6·2 answers
  • What hereditary material in the nucleus of the cell is responsible for passing traits to the next generation
    13·2 answers
  • Protists can be harmful for which of the following reasons?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!