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
Fiesta28 [93]
2 years ago
10

A scientist is investigating the effects of salinity on fish development in the Atlantic Ocean. He places fertilized fish eggs i

n an aquarium that contains lower salinity than typical Atlantic Ocean water. He observes that the fertilized eggs fail to develop. He concludes that fish eggs do not develop in conditions with low salinity. Why is this an invalid conclusion? The experiment lacks an experimental group. The experiment does not measure any dependent variables. The experiment does not have a group tested in normal salinity. The experiment changes more than one variable at once. i need help ASAP PLEASE
Biology
1 answer:
Korolek [52]2 years ago
7 0

The experiment does not have a group tested in normal salinity.

You might be interested in
Which statement best describes the evolutionary significance of mutualism?
krok68 [10]

Answer:

C) Interaction increases the survival and reproductive rates of mutualistic species.

Explanation:

A) Mutualism offer more biodiversity to a community.

    Biodiversity is the different species living in one environment. Since mutualism is only involving two species, it wouldn't increase the biodiversity of one ecosystem, making it incorrect.

B) Individuals partaking in a mutualistic relationship relationship are more resistant to parasites.

    Mutualism is only benefiting two species, not their immunity to diseases and parasites. These two have no correlation with each other, making it incorrect.

D) Mutualistic interaction lessens competition in communities where it is present.

    Since mutualism is only benefiting two species, they have no correlation since the relationship doesn't affect the different species in the environment.

E) Mutualistic relationships allow organisms to synthesize and use energy more efficiently.

    Although there could be some relationships involving energy transfer between the species, that would sound more like commensalism or even paratsitism if you think about it. However, it is very uncommon and usually energy has no relationship with species relationships, making it incorrect.

Hope this helps! My deepest apologies if I got in incorrect!

5 0
2 years ago
Read 2 more answers
One result of ________ over evolutionary time spans is that the alleles that enable individuals to survive and reproduce at a hi
Alecsey [184]
Natural Selection is the process for which evolution occurs , survival of the fittest allows only for the better, stronger alleled individuals to reproduce.
5 0
1 year ago
Why is ribosomal rna especially useful for the study of phylogenetic relationships? why is ribosomal rna especially useful for t
defon
<span>The ribosomal RNA is especially useful for the study of phylogenetic relationships because ribosomal RNA are highly conserved.

It is very less that is why it is easy to compare. Ribosomal ribonucleic acid is the RNA component of ribosome which is essential for protein synthesis to all living organisms.

rRNA is widely used for the purpose of working out evolutionary relationships which are among organisms. </span>
8 0
2 years ago
A seismograph station is located 2000 km from an earthquake’s epicenter. Explain the order that the S and P waves will arrive at
ohaa [14]

The P waves vibrate very quickly out from the epicenter first in all directions, in a circular way passing the station. The S waves then vibrate out from the epicenter a few seconds later and cause the sideways shaking of the land as they pass the station. The P wave then reflects off the core of the Earth and  bounces back past the station, followed by the S wave a few seconds later  because both waves reflect off the earths core back to the epicenter.


4 0
2 years ago
Read 2 more answers
An organism with a cell wall would most likely be unable to take in materials through?
densk [106]

Answer:An organism with a cell wall would most likely be unable to take in materials like food via phagocytosis because their cell wall is inhibiting that change in cellular structure.

8 0
2 years ago
Other questions:
  • Explain why the dodo was placed in the kingdom animalia
    10·1 answer
  • Jenny is trying to describe a wave. Which example would be the best description?
    10·2 answers
  • Your friend, Raul, has just bought a school organizer and doesn’t understand why there are three different types of calendars in
    8·2 answers
  • Which reproductive isolating mechanism is most likely responsible for the divergence of bonobos and chimpanzees?
    10·1 answer
  • Which of the following procedures removes small portions of one's cornea in order to help change the cornea's curvature and re-e
    12·2 answers
  • Which of the following is an organic growth factor? A) Glucose B) NAD+ C) Peptone D) NH4H2PO4 E) H2O
    15·2 answers
  • Water is essential for survival. It is important to understand the factors that affect water balance and the best sources to hel
    10·2 answers
  • A mutation that disrupts the ability of an animal cell to add polysaccharide modifications to proteins would most likely cause d
    15·2 answers
  • Which category of environmental worldview do you think would be most likely to lead to a sustainable future if it were widely ac
    15·1 answer
  • Tell me about a time when you made a mistake.. How did you find it and what did you do to correct it? (On the job, school work,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!