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
olga2289 [7]
2 years ago
5

What are the student’s observations and inferences before he starts his investigation?

Biology
1 answer:
Andru [333]2 years ago
3 0

Answer:

Hypothesis. A Hypothesis is an estimation of what might happen and the student's observation before moving on to investigate.

You might be interested in
Is a fish an animal?
Varvara68 [4.7K]
Yes. They are aquatic animals.
5 0
3 years ago
In the pedigree that is shown, which represents Irene's allele combination?
Greeley [361]

The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is X^{H} X^{H} .

4 0
3 years ago
Read 2 more answers
You want to test the effect of sucralose on the growth of a plant. Design a study using the steps of the scientific method. What
Julli [10]

Answer:

  • The independent variable is the concentration of sucralose present in the plant.
  • The dependent variable is the growth rate of the plant.

Explanation:

The study designed through the steps of the scientific method would be done as follows:

Observation: Sucrose is a very important molecule for the development and growth of plants, based on which sucralose, which is formed from sucrose, can be important for the same factors.

Question: Can sucralose influence plant growth as well as sucrose?

Hypothesis: Sucralose may establish some influence on plant growth.

Experimentation: Select a number of seeds inoculated with sucralose molecules and select the same number of seeds that were not inoculated with anything. Provide the same type of soil and environmental factors so that seeds can grow in the same way. Weekly evaluate the growth of the plants generated by each seed for a certain period of time. After this period of time, measure the weight of the plants and their roots. Place the plant and root to dry in an oven and measure the weight of the plant and root once again.

Analysis of results: compare the average weekly growth of plants generated by inoculated seeds, with plants generated from uninoculated seeds. Compare the average weight of plants generated by seed inoculated before and after kiln-dried. Compare the weight average between plant roots generated by inoculated seeds before and after kiln-dried. Assess whether there was a significant difference between the means.

Conclusion: Using the data presented in the evaluation of the experiment, state whether the hypothesis developed provides true or false information.

<u><em>Note: it is important that the seeds are from the same species of plant.</em></u>

5 0
3 years ago
Read 2 more answers
What are three types of homologies that can be seen in organisms? Give example of each homologous?
Vaselesa [24]

Answer:

1. Iterative homology: e.g. antenna and leg of fiddler crab

2. Ontogenetic homology: e.g. radular teeth of veliger, feathers of chicken and hen

3. Di-polymorphic homology: e.g. white and brown feathers of hen races, chelae of male and female of fiddler crabs

4. Supraspecific: e.g. chelae of fiddler crab, chelae of lobster, feathers of hen and pheasant

Explanation:

7 0
3 years ago
Curare is a poisonous plant extract with a chemical structure like the neurotransmitter ACh. Curare can bind to the ACh receptor
wlad13 [49]

Answer:

i think muscular dysfunction not being able to breath

Explanation:

acetylcholine helps muscular movement so if you are basically paralyze you will die lol

4 0
3 years ago
Other questions:
  • During which stage can cells either exit the cell cycle or become committed to completing the cell cycle? hints during which sta
    7·1 answer
  • What type of biomedical engineer typically works in medical settings, maintaining diagnostic and therapeutic devices and aids an
    12·2 answers
  • Why are variations beneficial in natural selection
    7·1 answer
  • Which organism is classified in a division?
    14·2 answers
  • A normal man and normal woman marry. What is the chance that they will produce a male child with Down's syndrome?
    11·1 answer
  • A scientist finds the bones of a dinosaur. what could help the scientist determine the approximate age of the dinosaur bones
    7·1 answer
  • True or False. Genes determine the traits of an organism.
    14·1 answer
  • Which best describes the alternation of generations? Fertilization produces haploid spores. Meiosis produces a diploid zygote. A
    9·2 answers
  • Help please !!!!!!!
    9·1 answer
  • a dna strand is aacgtaacg . what will be the sequence of the mrna? uug ugc aacgtaacg atgcatgc aacgtaacg
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!