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
lisov135 [29]
2 years ago
11

If natural selection has no foresight, how can it explain features that seem to prepare organisms for future events? for example

, deciduous trees at high latitudes drop their leaves before winter arrives, male birds establish territories before females arrive in the spring, and animals such as squirrels and jays store food as winter approach
Biology
1 answer:
Nezavi [6.7K]2 years ago
4 0

The genes in a population give forth the genetic variability across a population (genotypes). In addition, occasional mutations of these genes in a population increase this genetic variability. Hovever, natural selection only favours reproduction of individuals with genes that are favourable in the environment/habitat. Therefore, natural selection has no foresight but is rather pegged on being an ‘opportunistic’ process.


You might be interested in
Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this abi
iogann1982 [59]

Answer:

D. Plasmids are nucleic acids which can pass on traits

Explanation:

A Nucleic acid is one of the four biomolecule polymers in living systems. It is made up of monomeric units called Nucleotides. RNA and DNA are the two nucleic acids in existence and they function in storage and expression of genetic information.

According to the question, a colony of bacteria that can break plastics were mixed with the colony that can't break plastics. The two different colonies engage plamids, which conferred the ability to break plastics to some of the colonies that previously couldn't. This tells us that the ability to break plastics in the certain bacteria colony is GENETIC.

If the trait is genetic, the plasmid must be a nucleic acid because of the ability to genetically pass on traits. Note that, a plasmid is an extra-chromosomal DNA (nucleic acid) capable of replicating on its own. Hence, plasmids are nucleic acids which can pass on traits.

8 0
1 year ago
A contraction of the smooth muscle in the walls of the bronchi and bronchioles that tighten and squeeze the airway shut is known
Romashka [77]

Answer:

Bronchospasm

Explanation:

Bronchospasm is known to be a condition that results from the contraction of the muscles that is found in the wall of the bronchioles which result into obstruction and narrowing of the respiratory airway. Thus, substance released from basophils or mast cell under the control of anaphylatoxin usually causes Bronchospasm. Furthermore, Bronchospasm is commonly caused by asthma and can also be caused by allergic reactions, respiratory infection, and chronic lung diseases.

3 0
2 years ago
Maria is concerned because she has been exposed to a small amount of radiation during an X-ray. What is her doctor most likely t
Lesechka [4]
Stay for an examination
4 0
1 year ago
Read 2 more answers
During the performance of the simple staining procedure, you failed to heat fix your
lbvjy [14]
. excess water on<span> the </span>slides will<span> boil </span>during fixation<span>. Why should </span>you<span> be careful . </span>During<span> the</span>performance<span> of the </span>simple staining procedure<span>, </span>you failed<span> to </span>heat fix your E<span>. </span>coli smear preparation.Upon microscopic examination<span>, how </span>would you expect<span> this </span>slide<span> to </span>differ<span> from the </span>correctly prepared slides<span>? When </span>heat fixing<span> the.</span>
4 0
1 year ago
Whole, intact shell eggs must be stored at a temperature of _______ to be kept safe?
Alexxx [7]
The answer is Air temperature of 45 degrees F or lower.  I<span>t is very important to refrigerate them at a temperature of 45 °F or below.  Keep the eggs in their carton and place them in the coldest part of the refrigerator, not in the door. Storing eggs in the refrigerator door could lead to temperature fluctuations that can lead to bacteria growth.</span>
7 0
2 years ago
Other questions:
  • Drag each label into the proper position to identify whether the indicated structure is located on the femur, humerus, or both.
    14·2 answers
  • All are concerns with unregulated biotechnology experiments in cloning, EXCEPT for the A) release of cloned organisms that out-c
    14·1 answer
  • Compare the structure of the fetal pig kidneys to the structure of the sheep kidneys.
    8·2 answers
  • If the trend shown in the maps continues, future temperatures will MOST LIKELY
    8·2 answers
  • How does the hydroelectric dam pictured here impact the environment?
    5·2 answers
  • Six-year-old Demetri and 4-year-old Lucien's mother gave each boy a glass of juice with their lunch, but Demetri asked her to sw
    13·1 answer
  • In the following cross the genotype of the female parent is BbGg. What is the genotype of the male parent? [Hint: B = black eyes
    14·1 answer
  • Arrange the following in order from most general to most specific. 1 natural selection 2. Microevolution 3. Intrasexual selectio
    8·1 answer
  • Neurons transmit signals to the central nervous system. The brain processes this information to initiate a response. Two neurons
    13·2 answers
  • Pizza restaurants often use large ovens lined with bricks. These ovens remain very hot, even though only a small fire is kept bu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!