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
Goryan [66]
4 years ago
14

what is a type of research that involves observation and collecting data but does not include control

Biology
2 answers:
ira [324]4 years ago
8 0
<span>may be the scientific method</span>
Mrrafil [7]4 years ago
7 0
The type of research may be the scientific method
You might be interested in
Most deer mouse populations inhabit regions with dark soils. These deer mice have dark brown fur. Populations of deer mice found
mixas84 [53]

Answer:

Tan fur helps the mice protect themselves from predators

Explanation:

The entrenchment of this phenotype in the population is powered by natural selection pressures. The mice with fur color that enable them to camouflage with their environment are predated less than mice with other fur colors. These tan mice are therefore more likely to survive and pass their genes to the next generation. Through successive generations, the allelic frequency for the tan fur color increases until it is the dominant allele in the population.

7 0
4 years ago
Complete the Punnett Square
user100 [1]

Answer:

phenotype is Rr, or rr genotype is RR, or Rr.

Explanation:

because we combine two types of letters so we may find out what compartment of the Punnet square represents.

7 0
3 years ago
Read 2 more answers
14. What happens during the development stages that happen between a
strojnjashka [21]

Answer:

First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

7 0
2 years ago
Pepsinogen is an:A) inactive precursor to the enzyme pepsin that digests proteins in the stomach. B) active enzyme that is relea
sasho [114]

Answer:

A. INACTIVE PRECURSOR OF THE ENZYME PEPSIN THAT DIGESTS PROTEINS IN THE STOMACH.

Explanation:

Pepsinogen is the inactive precursor of pepsin produced by the chief cells of the stomach lining. The stomach walls are lined by majorly two types of cells; the chief and the parietal cells. Chief cells secretes pepisinogen and parietal cells secrete hydrochloric acid in the stomach lining. The chief cells upon the signals of increased protein substance in the stomach produces pepsinogen which upon it release, it is activated to the active enzyme Pepsin by the hydrochloric acid from the parietal cell. Hydrochloric acid provides the acidic environment needed for the action of pepsin in the stomach. The pepsin begins the digestion of proteins into small amino acids in the stomach,

6 0
4 years ago
Plant-like protists are A. unicellular B. multi-cellular C. live in colonies D. all of the above
tatiyna
I would go with d
hope it helps

5 0
3 years ago
Other questions:
  • What is the difference between pure breeding and true breeding
    15·1 answer
  • What would be the most likely effect of a wildfire that burned a large area of a forest?
    12·2 answers
  • Which advance in biology resulted from developments in cell technology?
    15·1 answer
  • The light reactions of photosynthesis use _____ and produce _____.
    14·1 answer
  • Why does protein concentration increase from the arterial blood to the postglomerular blood
    7·1 answer
  • The presence of cholesterol in the plasma membranes of some animal cells _____. The presence of cholesterol in the plasma membra
    6·1 answer
  • Describe the path that air takes as it enters and passes through the human respiratory system.
    7·1 answer
  • Describe the appearance of the mycobacterium on a plate. with what cell component does this correlate?
    9·1 answer
  • Members of the same species of bird became geographically separated. Over many years, the two groups evolved to become two diffe
    10·1 answer
  • Which of the following statements is true? Which of the following statements is true? No archaea are capable of using CO2CO2 to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!