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
atroni [7]
3 years ago
6

Arms extend from the middle outwards and tube feet for oxygen

Biology
1 answer:
Nezavi [6.7K]3 years ago
8 0

Insects, arachnids, and crustaceans  

Insects have 3 body segments. (head, thorax, abdomen)

Have a hard exoskeleton made of chitin.

Appendages be used for feeding, defense, sensory and reception.

Invertebrate phyla that obtains oxygen by using gills (marine) or air tubes (terrestrial.)

Use pincers and stingers as attack weapons to defend themselves

Characterized by having jointed legs, segmented bodies, and sometimes wings

You might be interested in
How can osteocytes remain alive within bone? Select one: Osteocytes have membrane extensions that protrude from bone and allow t
Alisiya [41]

Answer:

Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes

Explanation:

Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive

7 0
2 years ago
Read 2 more answers
Help with science plsss​
oksano4ka [1.4K]

Answer:

FIRST ONE

Explanation:

Reproduction. Pink salmon in their native range have a strict two year life cycle, thus odd and even-year populations do not interbreed. In the state of Washington, Pink salmon runs occur on odd years. Adult pink salmon enter spawning streams from the ocean, usually returning to the stream where they originated.

3 0
2 years ago
5. Describe the texture of the marrow from the beef bone.
Lorico [155]

Answer:

Bone marrow has a rich, buttery, semi-sweet flavor with a delicately creamy texture. When roasted, the marrow takes on slightly nutty, umami notes

5 0
1 year ago
14. Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
Afina-wow [57]

When conducting an experiment, there are different aspects to consider, such as the question that drives to the reseach, the hypothesis, theoretical framework, variables involved -independent, dependent, and controll-, methodology, study groups, data analisys, among others.    

In the exposed example, Pincky is lacking <em>theoretical framework, d</em><em>efining which are the </em><em>study groups, methodology </em><em>to collect data</em><em>, </em><em>and a description of </em><em>data analysis</em>.

---------------------

The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on two aspects: <em>reproducibility, </em><em>which is the capability of reproducing the experiment in any other place by any researcher</em>, and <em>refutability, </em><em>which is the susceptibility to be refused.</em>

When conducting an experiment, you need to consider,

• Definition and problem statement. The question for which there is not an answer yet.

• Hypothesis formulation. A hypothesis is a scientific conjecture, not verified, that requires corroboration.

• Data collection and analysis. This step involves testing the observations.

• Results

• Verification of hypothesis. This step involves the deriving of the working hypothesis.

• Discussion and Conclusion.

Previous knowledge about the study object is always required for a better understandig.  A question the investigator wants to answer. The main goal of the study, which is basically what the investigator wants to find out. The researcher makes a hypothesis to predict what is going to happen. The experiment is to be performed to answer the question. The conclusions through which the hypothesis might be rejected or accepted.

--------------

So in this experiment there must be,

Theoretical framework, such as information about the species, life stage at which they begin chirping, about external factors that might affect it or benefit it, and etcetera.

The goal: To know how temperature affects cricket´s chirping

Hypothesis: Crickets chirp less frequently under cold temperature than under warm temperature.

Variables: Temperature → Independent

                 Chirp frequency → Dependent

                 Water and food supply, light exposure, refuge → Controlled

Study groups: group of crickets exposed to a warmer temperature

                        group of crickets exposed to a colder temperature

Methodology: Individuals analyzed should be in the same development stage, or at least be sexually mature. Two groups of 10 individuals each should be placed under the same conditions, excepting for temperature. One of the groups should be exposed to warmer temperatures and the other one to lower temperatures. Chirps should be recorded for a week.

Data analysis: Using the chirps records, the frequency can be measured for each group. Results should be compared using different statistical analyses.

Results: Results should be clearly exposed, using texts, charts, and graphs.

Discussion and Conclusion: Hypothesis acceptance or rejection. Discussion about the expected results against the observed ones.

-----------------------------

Related link: brainly.com/question/17645242

3 0
2 years ago
What climate conditions occur during La Niña?
Aleks [24]

Answer:

Stronger prevailing winds and more hurricane activity .

4 0
2 years ago
Read 2 more answers
Other questions:
  • what do I do in a situation where my mother let me use he credit card and then mad me mad and when I tried to give it back to he
    5·2 answers
  • 1. Where would you set the table for dinner?
    15·2 answers
  • Which of the following accurately describes kidney function? A. Kidneys are directed by the presence of antidiuretic hormone to
    14·1 answer
  • Microbes requiring low oxygen concentration and salts are known as____________________
    11·2 answers
  • Which of the examples shows a response to a stimulus?
    7·1 answer
  • 7. Which of the following is an anaerobic activity?
    6·1 answer
  • the two main function of sweat are a. to keep the body cool and to remove excess protein b. to remove waste products and to cool
    6·1 answer
  • Examine the photograph. Identify at least three natural resources being used. Describe where each natural resource came from.
    12·2 answers
  • Explain what is different about how genetic
    12·1 answer
  • Giving brain liest to whover helps me :)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!