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
vazorg [7]
3 years ago
5

A student wants to test the hypothesis that plants need soil to grow. Identify the independent

Biology
1 answer:
bija089 [108]3 years ago
7 0

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

You might be interested in
How does the human brain store and retrieve memories?
krek1111 [17]

Answer: After consolidation, long-term memories are stored throughout the brain as groups of neurons that are primed to fire together in the same pattern that created the original experience, and each component of a memory is stored in the brain area that initiated it (e.g. groups of neurons in the visual cortex store a sight, neurons in the amygdala store the associated emotion, etc).

Explanation:

3 0
3 years ago
Which of the following is not a true statement regarding the genetic code?
padilas [110]

Answer:

E. Each codon represents a different amino acid.

Explanation:

The genetic code refers to the set of rules guiding the translation of nucleotide bases in DNA or RNA into an amino acid sequence (proteins). The genetic code contains all the codons in the genome, which is a group of three nucleotide base (triplet-based). Each codon species a particular amino acid, however, more than one codon can code for a particular amino acid. This characteristics of the genetic code is called DEGENERACY.

The genetic code is said to be nearly universal because the same codon encodes the same amino acid in almost all living organisms with only few exceptions. The nonoverlapping nature of the genetic code refers to the fact the three bases of a codon are read independently from the bases of another codon i.e. codons do not overlap.

A codon represents one amino acid but more than one codon can represent the same amino acid. Hence, option E is untrue

8 0
3 years ago
A diploid nucleus of Drosophila melanogaster contains about 3.4 x 108 nucleotide pairs. Assume (1) that all nuclear DNA is packa
Olin [163]

Answer:

nucleosomes = 1.65 x 10^6

H2a = 3.3 x 10^6 molecules

H2b = 3.3 x 10^6 molecules

H3 = 3.3 x 10^6 molecules

H4 = 3.3 x 10^6 molecules

Explanation:

It was mentioned in the book Principles of Genetics  By D. Peter Snustad, Michael J. Simmons that in the nucleus of <em>D. melanogaster </em>there will be 1.65 x 10^6 nucleosomes and 3.3 x 10^6 molecules of every type of histone i.e. H2a, H2b, H3, and H4 present in it.

3 0
3 years ago
If a man weighs 190 lb and eats 150 g protein per day, his protein intake is _____ of the recommended dietary allowance (rda)
-BARSIC- [3]

The RDA for protein is 0.8 g per kilogram of body weight. This man's weight is 190 lb, or 86 kg; 86 kg × 0.8 = 69.1 g protein per day. Thus, an intake of 150 g is more than twice his RDA of 69.1 g of protein per day.

Recommended Dietary Allowance (RDA) of protein for adults is 0.8 g per kilogram of body weight. To determine your RDA for protein, multiply your weight in pounds by 0.36.The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day.

Proteins build muscle mass and contour, facilitate hair, nails and bone growth, regulate energy levels, and support chemical processes within the body which include enzyme, hormone and antibody production.

To learn more about Recommended Dietary Allowance ,here

brainly.com/question/11824881

#SPJ4

6 0
2 years ago
Antidiuretic hormone (ADH) is important in maintaining homeostasis in mammals.
4vir4ik [10]

Answer:

true

Explanation:

7 0
2 years ago
Other questions:
  • Do animal and plant organisms have the same life processes?
    11·2 answers
  • Often when a family member is dying, the client and the family are at different stages of grieving. during which stage of a clie
    6·1 answer
  • Is it true that the struggle between organisms to survive in a habitat with limited resources called natural selection
    7·1 answer
  • The small intestine _____.
    8·2 answers
  • What is an advantage of using transgenic bacteria to produce human proteins?
    10·1 answer
  • Does an enzyme catalyze a large number of different reactions
    7·1 answer
  • _____ direct(s) and produce(s) human behaviors, personality traits, and even psychological disorders. the environment evolution
    10·1 answer
  • In the endocrine system, what is the function of a negative feedback loop?
    5·2 answers
  • A certain genetic mutation is found with a high frequency in populations of humans living in places that experienced a deadly di
    5·1 answer
  • What is the name of this ocean?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!