answer.
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
Svetllana
2 months ago
10

A researcher tests the hypothesis that large, daily doses of vitamin c help protect against catching the common cold. what would

be the best experimental and control group to test this hypothesis?
Biology
1 answer:
-BARSIC- [2.5K]2 months ago
4 0
The most effective approach would be as follows: those in the experimental group need to receive large, daily doses of vitamin C, while subjects in the control group should take sugar pills that are disguised as vitamin C. This way, researchers can analyze the disparities between the two groups.
You might be interested in
Q. When cells are damaged, new cells are created
inysia [2303]

Response:

When cells are harmed, new cells are formed through a process known as cell division.

This confirms that cells emerge from previously existing cells. Rudolf Virchow stated this principle (omni cellulae e cellulae), thus solidifying the cell theory.

5 0
2 months ago
Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the
s2008m [2378]

Complete question:

Fill in the sentences by matching tree names to the appropriate blanks. To do this, drag the names from the left into the correct spots in the sentences on the right. Ensure that every blank is filled with a term before clicking submit.

  • Elm
  • Maple
  • Mango
  • Pine    
  • Cedar

1. Deciduous trees shed their leaves in a seasonal manner and comprise species such as ----- and ----.

2. Conifers have leaves that are typically thin and needle-like, while their seeds are found within cones. Conifers encompass ---- and -----.

3. Evergreens are plants that keep their leaves throughout all seasons, which include trees like ---, ---, and ---.

4. Hardwoods reproduce through flowers and showcase broad leaves; they consist of trees like ---, ---, and ---.

Answer:

1. Deciduous trees shed their leaves in seasonal cycles and consist of trees like elm and maple.

2. Conifer leaves are often thin and needle-shaped, while their seeds are found within cones. Conifers incorporate pine and cedar.

3. Evergreens are species that retain their leaves across all seasons and encompass trees such as Pine, Cedar, and Mango.

Explanation:    

  • Deciduous trees:  These species drop their foliage every year during the frigid and arid autumns and winters, which is the most challenging period throughout the year. New foliage emerges again during the warmer, wetter seasons when rainfall increases, specifically in spring and summer. The template forest biome is characterized by the presence of deciduous trees like oaks, maples, or elms, among other phanerophyte species.

1. Deciduous trees shed their leaves in seasonal cycles and consist of trees like elm and maple.

  • Conifers: This refers to the gymnosperm category. They are perennial, vascular, evergreen, woody plants. They are defined by their upright stems with secondary growth and the absence of vessels in their xylem tissue. Typically, their branches spread sideways, featuring needle-like foliage, unisexual flowers, and cone-encased seeds.

 2. Conifer leaves are often thin and needle-shaped, while their seeds are found within cones. Conifers incorporate pine and cedar.

  • Evergreens: These are perennial plants that retain their green leaves year-round.  These are the opposite of deciduous trees. Tropical forests are known for favoring these broadleaf plant species, such as mango, which thrive under abundant rainfall and higher average temperatures throughout much of the year. Additionally, many evergreen varieties are characteristic of boreal forests.  Pines, cypress, cedar, and sequoias are examples from the latter group.

3. Evergreens are species that retain their leaves across all seasons and encompass trees such as Pine, Cedar, and Mango.

  • Hardwoods: Angiosperms that possess xylem featuring vessels. These species exhibit high variability in form, texture, and size. They can reproduce both asexually or sexually through flowering, fruiting, and seeding. Additionally, they may be either evergreen or deciduous.

4. Hardwoods reproduce through flowers and showcase broad leaves; they consist of trees like Elm, Maple, and Mango.    

3 0
2 months ago
Other questions:
  • In the first 2.5 hours after a radical neck dissection, 40 ml of medium-red, bloody fluid is obtained from the client's drainage
    11·1 answer
  • A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt an
    6·1 answer
  • The prosthetic group of hemoglobin and myoglobin is . The organic ring component of heme is . Under normal conditions, the centr
    11·1 answer
  • Psychologists suspect that _____ often results from growing up in below-average intellectual environment.
    13·2 answers
  • 1. In eukaryotic flagella, the fibers that slide past one another due to the activity of dynein proteins are microtubules. 2. Ma
    11·2 answers
  • A 64-year-old, fair-skinned man in good overall health spent a very hot, humid summer day gardening in his backyard. After sever
    15·1 answer
  • How is DNA related to reproduction
    12·1 answer
  • The idea that organic forms changed through "effort," that the effort the organism makes in using those parts of its body that a
    6·1 answer
  • (c) Based on the data in Table 1, describe why the dominant alleles for body color and wing shape are the alleles that produce a
    13·1 answer
  • Both the endocrine and nervous systems transmit information around an animal's body. Which of the following is a characteristic
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!