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
elena-s [515]
3 years ago
9

How do spines protect ocean stickleback fish ?

Biology
2 answers:
lawyer [7]3 years ago
4 0
When a Stickleback fish feels threatened, it will flare out its pair of pelvic spines and three dorsal spines, making it difficult for predators to swallow them. 
fiasKO [112]3 years ago
4 0
When threatened, a stickleback can simultaneously flare out its pair of pelvic spines and three dorsal spines, making it difficult for predators to swallow them. age, new freshwater lakes formed as glaciers melted. These lakes provided new breeding grounds for stickleback swimming to these lakes from the ocean.
You might be interested in
(03.05 hc) the base pairs in a dna strand are held together with hydrogen bonds. if the two nitrogenous bases in each pair were
asambeis [7]

The cell would have to take in and use more energy in order to break the covalent bonds.

The correct option is B

Hydrogen bonds :

are the chemical mechanism that governs the complementarity of the bases of DNA. This correspondence is unique thanks to the geometry of the hydrogen donor atoms and the acceptors that form the bases.

The (hydrophobic) bases are stacked inside the double helix of DNA; their plane is perpendicular to the axis of the double helix. The outside (phosphate and sugar) is hydrophilic.

The hydrogen bonds between the bases of one strand and the bases of the other strand keep the 2 strands united.

One purine on one strand necessarily binds to a pyrimidine on the other strand. As a corollary, the number of purine residues is equal to the number of pyrimidine residues.

* A binds to T (by 2 hydrogen bonds).

* G binds to C (via 3 hydrogen bonds: more stable bond: 5.5 kcal vs 3.5 kcal).

What part of the DNA strand do hydrogen bonds hold together?

hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.

Learn more about DNA strand:

brainly.com/question/26466656

#SPJ4

7 0
2 years ago
An experiment that blank a hypothesis will often provide a new direction for the researcher.
Lunna [17]

Conduct is the word your looking for.

6 0
3 years ago
Which events take place in the light-dependent reactions of photosynthesis?
Alinara [238K]
There are four major protein complexes in the thylakoid membrane: Photosystem II (PSII), Cytochrome b6f complex, Photosystem I (PSI), and ATP synthase. These four complexes work together to ultimately create the products ATP and NADPH.
8 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST!!
adell [148]

Answer:

Survey

Explanation:

Because if you think about it carefully you really cant observe it. Your main goal is to compare them and with that we need a survey to get the data from both sides. Leaving us with the Survey

6 0
2 years ago
What are the organisms that make their own organic compounds needed for life functions called?
matrenka [14]
<span>  i think it si called an autotroph?</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • 1. How long is the typical human digestive tract?
    14·1 answer
  • A DNA segment is changed from AATTAG to AAATAG. This is called what?
    11·1 answer
  • Whay is phospholipid​
    15·1 answer
  • Name a
    6·1 answer
  • What factors should we consider when determining why the chicken "loses" to the fox? A chicken can fly and perch on higher place
    7·1 answer
  • Carbon dating is useful for
    5·1 answer
  • Which particles zoom around the center of atoms?
    10·1 answer
  • Nutrition experts recommend that most people eat less than 2,300 milligrams of sodium a day for good heart health. What percenta
    15·2 answers
  • You have recently identified a new toxin. It is produced by a gram-negative bacterium. It is composed mostly of protein, has hig
    8·1 answer
  • 6, what is the difference between the nutrition and nutrients?​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!