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
nasty-shy [4]
3 years ago
9

What is microevolution?

Biology
2 answers:
salantis [7]3 years ago
8 0
Microevolution is just a change in the gene frequency within a population.  
Morgarella [4.7K]3 years ago
5 0
Microevolution - Allele frequency changes in a certain population over an amount of generations, it can also be simply described as "an evolutionary change in populations".
You might be interested in
Goiters may occur due to iodine insufficiency, but other causes are possible. Which of the following would NOT tend to result in
AleksAgata [21]

Answer:

Option A

Explanation:

Thyroid is primarily caused by lack of iodine but there are other reasons as well that lead to increased size of the thyroid gland. Some of these reason is

a) over- or underproduction of thyroid hormones

b) Nodules in the glans

Some times, due to overstimulation immune system itself attack the thyroid gland thereby producing excess thyroxine and hence causing  the thyroid to swell

Thus, Option A is correct

4 0
3 years ago
The hormone __________ stimulates the secretion of pancreatic digestive enzymes and stimulates gallbladder contraction.
Roman55 [17]

Answer: option B) Secretin

Explanation:

Secretin is an enzyme formed by the upper intestinal layer and gets transported by blood to the PANCREAS which it stimulates: causing the flow of pancreatic juice, also the flow of bile and intestinal juice but to a lesser extent.

Alongside Gastrin, Secretin is one of the hormones of the Gastrointestinal tract; but their functions differ

Therefore, Secretin is the answer

6 0
3 years ago
When the concentration of a substance higher on one side of the cells selectively permeable membrane, certain molecules may move
grin007 [14]

Answer:

A.

Explanation:

osmosis and diffusion are both passive transport bc it doesnt require energy and only moves down cocentration gradient, never against concertration gradient. Give me a brainliest if i helped! ♡

8 0
3 years ago
Which statement best summarizes Gregor Mendel's contribution to science?
Igoryamba

Answer:

Answer is A.

Explanation:

I hope it's helpful!

8 0
3 years ago
Explain what happens to energy as it moves through the energy pyramid.
Ilya [14]

Answer:

It decreases

Explanation:

The sun provides energy for plants to grow and then animals eat the plants and humans eat animals throughout the transfer of energy through digestion energy is lost via digestion and excretion.

4 0
3 years ago
Other questions:
  • What is the nature of "second signal molecules" in signaling pathways?
    8·1 answer
  • The ability for people to roll their tongue is dominant to people who cannot. If a tongue roller and a non-tongue roller were cr
    14·1 answer
  • If a heterozygous male with the genotype Ww is mated with a homozygous recessive female of genotype we what chance is it that th
    12·2 answers
  • The method in a science text
    13·1 answer
  • A solid colored, short-haired female rabbit (ssLL) is mated to a spotted, long-haired
    7·1 answer
  • Which type of nerve carries commands to the skeletal muscles?
    14·2 answers
  • Please help quick!! Asap in test!
    11·2 answers
  • NEED HELP
    11·2 answers
  • 4. Where do producers get the energy to make energy storage molecules from?
    9·2 answers
  • Which organelle<br> produces the cells energy
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!