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
joja [24]
3 years ago
11

As an environment changes, and some organisms have a higher fitness than other, natural selection acts directly on

Biology
1 answer:
olga2289 [7]3 years ago
6 0
Natural selection acts directly on those gene variations for traits or phenotypes.
The phenotype of an organism is the physical characteristic and is determined by the organism's genotype. Natural selection selects the genes that produce a certain phenotype by providing suitable conditions for a certain phenotype.
You might be interested in
Fill in the blanks.Phosphorylation cascades are similar to a row of dominoes falling down, instead of one domino knocking down t
Alex17521 [72]

Answer:Phosphorylation cascades are similar to a row of dominoes falling down, instead of one domino knocking down the next, a phosphate being added activates the message. In this way, a series of different _(phosphate group) are each _(added ) after another. Inactive protein kinase 1 gets a __(phosphate group_)___ added and now it is active protein kinase 1. Active protein kinase 1 transfers a (phosphate group) and now inactive protein kinase 2 is now ___(active)_____. This continues until the desired (protein ) is activated to cause a cellular response.

Explanation:

3 0
3 years ago
In an ecosystem can there be more carnivores than herbivore? Explain why or why not
Kobotan [32]
There cannot be more carnivores than herbivores because the carnivores eat the herbivores. If there wasn't enough herbivores to eat, then the carnivores would eventually become extinct.
5 0
3 years ago
Read 2 more answers
his geologic era is known as the age of aquatic plants and animals. a. Precambrian b. Mesozoic c. Cenozoic d. Paleozoi
german

Answer:d.Paleozoic Era

Explanation:

Paleozoic Era is hallmarked by climate, animals & plants.

This Era includes the Ordovician Period, Silurian Period and the Devonian Period.

The Silurian Period is one during this era where aquatic plants and animals evolved.

5 0
3 years ago
The breakdown of food via enzymatic reactions is known as __________.
r-ruslan [8.4K]
I believe you're looking for "chemical digestion".

Chemical digestions is where food that we ate is digested into simpler and soluble molecules that can be absorbed by our body. Enzymes are used as a catalyst to speed up the reaction.

One example is the digestion of lipids. Enzyme named lipase is used to speed up the digestion of lipids into 3 fatty acid molecules and 1 glycerol. This way, our body can absorb these simple molecules, and use them in order to make our body function.

On the other hand, physical digestion does not include enzymes, such as chewing in our mouth, therefore, don't mix them up!
4 0
3 years ago
Which of these provides your body with energy?
Svetllana [295]
I would have to say Proteins, lipids, and carbohydrates. Carbohydrates being the first energy source, lipids second and lasting the longest, and proteins the third and final source.  although you did not give the full question, so i do not know if i can be completely sure. 
7 0
3 years ago
Other questions:
  • Grains, seeds, nuts and root vegetables are examples of _________ carbohydrates and they take a __________ amount of time to bre
    8·2 answers
  • Which geologic principle explains why the bottom stratum in a section of rock is the oldest?
    14·1 answer
  • Write your own 1-2 sentences that explains how the following words are related: Traits, Genes. Alleles. Here
    6·2 answers
  • What are earthquakes
    10·2 answers
  • PLEASE ANSWER THIS QUESTION I WILL GIVE BRAINLIEST!!
    6·1 answer
  • Which of the following is the largest structure
    14·2 answers
  • Please help me with this
    7·2 answers
  • If a human baby's cells contain one X chromosome and one Y chromosome the baby must be
    11·2 answers
  • Please subscribe my channel
    9·2 answers
  • Function of throxine and insulin​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!