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
Ksivusya [100]
3 years ago
15

In order for evolution to occur, what must happen in a population?

Biology
1 answer:
kozerog [31]3 years ago
6 0
For evolution to occur: There must be genetic variation in a population. This provides variation on which natural selection can act. Then natural selection can act by selecting those species which are better adapted to the environmental conditions. Over time those animals that are best suited to the environment only will survive and reproduce. Those organisms successful genes will be preserved and eventually the gene frequency in the population will change, changing the overall characteristics of a population. This is how evolution occurs.
You might be interested in
Write down the names of various endocrine glands with their secretion and function.
VladimirAG [237]

Answer:

pituitary gland-growth hormone

thyroid gland- thyroxine

adrenal gland- adrenalin

pancrease- insulin

ovary-estrogen

testis-testosterone

Explanation:

8 0
3 years ago
Look at the two fatty acids below.
Gre4nikov [31]

i would say A.

the double bond in an unsaturated fatty acid produces a kink in the molecule. The bend in the carbon chain, however, is much more pronounced in the cis isomer compared to the trans isomer. For this reason, cis fatty acids (and triacylglycerols made from them) do not solidify like trans fatty acids. Due to the larger bend, the cis isomers cannot line up next to one another in as ordered a fashion as the trans isomers and can be more flexible.

5 0
3 years ago
Read 2 more answers
The evolutionary history for a group of species is called a
blsea [12.9K]

Answer:

The evolutionary history for a group of species is called a <u>phylogeny.</u>

Explanation:

Phylogeny is defined as the evolutionary history or evolutionary chronicle of the species, that is, it studies the relationship deals with the relationship between members of a group of species from the morphological, anatomical and embryological point of view. In this way, phylogeny explains the chronicle of each species, the different bifurcations, families and genetic structures, focusing on the evolution of the species in a global way.

4 0
3 years ago
Anemic conditions in agriculture animals result in a (blank) condition
AURORKA [14]

Make an appointment with your doctor if you're feeling fatigued for unexplained reasons. Some anemias, such as iron deficiency anemia or vitamin B-12 deficiency, are common.

Fatigue has many causes besides anemia, so don't assume that if you're tired you must be anemic. Some people learn that their hemoglobin is low, which indicates anemia, when they go to donate blood. If you're told that you can't donate blood because of low hemoglobin, make an appointment with your doctor.

7 0
3 years ago
I need to know what a mutation is and how it can affect living things.
anyanavicka [17]

Answer:

A Mutation is when a DNA gene is damaged or changed in  a way that changes the genetic message carried by that gene.

Explanation:Mutations are sometimes good and sometimes bad it can also cause genetic variation which increases the survival of a species

3 0
3 years ago
Other questions:
  • How can mutations in noncoding segments of dna contribute to the development of cancers?
    14·2 answers
  • What is a BURP ? WHY DOES IT COMES?
    9·1 answer
  • How have plants and animals adapted in the biome
    15·1 answer
  • How do glaciers erode by abrasion?
    11·1 answer
  • Which of the following is CORRECTLY matched?
    8·1 answer
  • What are the 2 major functions of mitosis do
    6·2 answers
  • An organism is currently using light energy to make food. Based on what you have learned, this organism will be best classified
    11·1 answer
  • Using your understanding of diffusion, how do you think oxygen from our lungs is transported to our red blood cells?​
    15·1 answer
  • Animals used their legs to move from place to place. How do cows, carabaos,horses and goats used their hooves? A.to keep them wa
    13·1 answer
  • Please help (i guess cells will be under the biology)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!