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
Ksivusya [100]
3 years ago
9

In which step of the scientific method would you need controls?

Biology
2 answers:
lawyer [7]3 years ago
7 0
 <span>The correct answer for is C. experimentation</span>
AlekseyPX3 years ago
4 0
I believe it's C. Experimentation
You might be interested in
Hertha ayrton career
STALIN [3.7K]
Is this even english
8 0
3 years ago
Read 2 more answers
What formula is 6H20+ 6CO2
Svetradugi [14.3K]

I think that the correct answer is reactants of photosynthesis.

4 0
3 years ago
The diaphragm is cranial to the heart.<br><br> True<br><br> False
ladessa [460]

Answer:

false. it is caudal

7 0
2 years ago
Suppose a couple has come to see you to discuss the probability of their children having cystic fibrosis (CF). CF is known to be
m_a_m_a [10]

Answer:

The children that the couple may have a 25% chance of having cystic fibrosis and 75% chance of being carriers for the CF gene

Explanation:

We know that both parents are in the same situation. Let's start for example with the mother. She has one parent and one sibling with cystic fibrosis (CF). So, supposing that the allele of the gene that causes the disease is <em>"f"</em>,  as the disease is autosomal recessive, both, the parent and the sibling have the genotype ff.

Also, knowing that the other parent has a normal phenotype, but the sibling has CF, we deduce that the other parent of the mother must have a <em>Ff</em>.

So, <em>despite the mother's phenotype is normal, her genotype is Ff</em> (see the Punnett square 1) Couple's parents in the attached image). In other words, she is a carrier for the CF gene.

As the parents' situation is analogous, <em>we can deduce that the father also has a genotype Ff  </em>and is also a carrier for the CF gene.

Now, if we look at the Punnett square for them  (see the square 2) Couple in the attached image), we see that all their children will always have at least one copy of the CF allele, <em>f</em>.

More specifically, their children have 25%  chance of having cystic fibrosis and 75% chance of having a normal phenotype but being carriers of the CF gene.

6 0
3 years ago
Which best describes meiosis?
Mariulka [41]

The right answer is It produces male and female sex cells.

Meiosis is the process of double cell division allowing the formation of gametes, or sexual cells in eukaryotic organisms. It differs from mitosis, somatic cell division, which takes place only in a time. From a diploid mother cell, we obtain four haploid daughter cells with different genetic material.

5 0
3 years ago
Read 2 more answers
Other questions:
  • How does the body maintain homeostasis when its inner temperature becomes higher than the normal body temperature?
    12·2 answers
  • Which condoms are useful for reducing your risk for contracting a sexually transmitted infection?
    15·1 answer
  • What is the main primary producer in a coral reef ecosystem?
    9·2 answers
  • The relationship below explains a type of symbiosis. Read the paragraph, and then answer the questions that follow.
    10·1 answer
  • What is a statement that can be proven by observation or measurement
    6·1 answer
  • Explain how predator and prey populations limit each s growth rate
    7·1 answer
  • Please help I dont know none of these.
    14·1 answer
  • Ocean dumping is a source of pollution for _____.
    14·1 answer
  • A cookware manufacturer made a frying pan out of lead. What properties of lead make this a poor choice? Select all that apply.
    6·1 answer
  • within a forest ecosystem, there is a large amount of diversity among members of a warbler species. of the following stages of m
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!