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
SashulF [63]
3 years ago
15

"New Caledonian crows consume a wide range of foods. These crows require tools to extract the larvae of wood boring beetles from

their burrows. A bird pokes a larva with a stick until the larva is disturbed enough to bite the stick and hang on to it. The bird is then able to pull the larva out of its burrow. These larvae, with their unusual diet, have a distinct chemical that can be found in the feathers and blood of crows—allowing scientists to determine the percentage of the crows’ diet that is made up of beetle larvae. Scientists found that the beetle larvae are so energy-rich that just a few could satisfy the daily energy requirement for a crow. The crows with the greatest skill in using a twig as a tool benefit most in terms of nutrition.
State one reason why the offspring of crows skilled at using twigs as tools would have the greatest chance of survival

State one reason why some members of a population of crows equally skilled in the use of twigs have different rates of survival."

Biology
1 answer:
chubhunter [2.5K]3 years ago
8 0
After reading the above information, one reason different members of  crow populations have a different rate of survival is there is always a chance that that some other variation will also effect some of the crows ability to survive. Another reason is  that the vision, muscle strength and size can influence survival. 
You might be interested in
If a molecule of DNA has 30% Adenine how much of the other bases will be present?
anygoal [31]

Answer:

If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.

Explanation:

When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.

A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.

Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:

  • <em>Adenine 30%. </em>
  • <em>Thymine 30%. </em>
  • <em>Cytosine 20%. </em>
  • <em>Guanine 20%. </em>
  • <em>Total ..... 100% </em>

In this case, the <u>Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base</u>.

7 0
3 years ago
Not all individuals in a population will survive to reproduce. Those that do, pass their to their offspring.
goldenfox [79]

Answer: Depending on the species they mightreproduce asexualy or they will adapt to have offspring.

Explanation:

3 0
3 years ago
Read 2 more answers
Name the sections of DNA that contain instructions for a specific trait.
Dimas [21]

Answer:

GENE

Explanation:

The functional segment of the DNA that contain instructions for a specific trait is known as a gene.

8 0
3 years ago
Define the word homology ?
Aleksandr [31]

the state of having the same or similar relation, relative position, or structure
4 0
3 years ago
How do massive stars change the atmosphere?
Inessa05 [86]

The answer is: massive stars create a lot of heavier elements. They produce much of the carbon and oxygen which is hugely important for humans and water respectively.

5 0
3 years ago
Other questions:
  • Which of the following astronomical bodies is the lowest in hierarchy? Galaxy Planet Solar system Star
    15·2 answers
  • What happens when humans burn fossil fuels
    13·2 answers
  • If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next
    9·2 answers
  • You place a potato slice in a sucrose solution of unknown concentration, and leave it there for 2 hrs. When you return and weigh
    12·1 answer
  • Which event caused speciation of the finches of the Galapagos Islands in picture B? *
    11·1 answer
  • ANSWER PLZ ASAP!!!!
    5·2 answers
  • suppose a dominate allele (N) codes for a big nose and recessive allele (n) codes for a small nose. Imagine that an organism rec
    13·1 answer
  • The first of the two undeniable facts is that any localized population of a species has the potential to produce far more offspr
    6·1 answer
  • Butterflies taste food by
    7·2 answers
  • For several days, the weather where Cheyenne lives was cool. When the temperature did warm, Cheyenne noticed
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!