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
iren2701 [21]
3 years ago
9

(Fill in the blank) In comparing DNA and structural characteristics between plant species, the similarities that appear may indi

cate a ____________________ __________________between them. (Think of evolution)
Biology
1 answer:
stepladder [879]3 years ago
3 0

Answer:

Mutation

Explanation:

Mutations can be defined as changes in genetic material, which are the main source of existing genetic variation. For ensuring genetic variability, that is, ensuring that individuals have different DNA, mutations are considered an important point in the evolution of living beings.

It is through mutations that important adaptive characteristics emerge, in addition to essential characteristics remaining in species that are different but that have similarities.

These processes also guarantees the selection of species most adapted species.  Mutations can be beneficial, neutral or harmful (genetic diseases or genetic "failures") and, therefore, are not targeted, occurring at <u>random</u>.

You might be interested in
What happens to weather patterns when a cold front approaches? What happens to
Soloha48 [4]
When a cold front happens when speaking gusty, there is a sudden drop in temperature, and there is heavy rain. When warm front approaches, The air becomes noticeably warmer and more humid than it was before.
5 0
4 years ago
A pyramid of energy for this ecosystem would look more like the pyramid of what
Soloha48 [4]

Answer:

The answer will be pyramid of biomass.

Explanation:

As it goes up the pyramid, the number decreases.

6 0
3 years ago
2. Suppose that you and 19 of your classmates (giving a final population of 10 males and 10 females) are on a cruise, and your s
Trava [24]

Answer:

0.25%

Explanation:

20 people start the new population. So there are 20 genes or 40 alleles for the recessive disorder phenylketonuria. 2 out of 40 alleles are recessive for the condition hence frequency of the allele = 2/40 = 0.05

Frequency of the allele does not change when the population increases so it is in Hardy-Weinberg equilibrium. According to it, if q is the frequency of recessive allele, q² = frequency of the recessive condition

Here, q = 0.05 So,

q² = (0.05)² = 0.0025

In percentage, it is 100 * 0.0025 = 0.25%

Hence, incidence of phenylketonuria in the new population is 0.25%

3 0
3 years ago
Shana is a competitive athlete who weighs 135 lb. she would like to plan a nutritionally adequate diet that provides enough carb
sashaice [31]

Carbohydrates are your body’s main source of energy. The amount of carbs a man should consume daily depends on his age and activity level. The Institute of Medicine suggests adults to eat at least 130 grams of carbs a day. But If you’re a competitive athlete like Shana, you need additional amount.

<span>A study made by The Academy of Nutrition and Dietetics recommends a 2.3 to 4.5 grams of carbohydrates per pound of body weight each day, to athletes depending on the intensity of training. Therefore,  Shana who weighs 135 lbs, needs approximately  310.5 grams carbohydrates daily for her physical workouts. </span>

5 0
3 years ago
Which of the following does NOT describe a basic regulator of digestive control?-Short reflexes act locally in the GI tract.-pH,
spayn [35]

Answer:

conscious neural control

Explanation:

Neural control of digestive tract is unconscious achieved via the autonomic nervous system.

Local nervous system of the digestive system is called the enteric or intrinsic nervous system. The major components of this nervous system are two networks or plexuses of neurons:

• The myenteric plexus – controls digestive tract motility

• The submucous plexus - regulates gastrointestinal blood flow and controls epithelial cell function.

3 0
4 years ago
Other questions:
  • The cellular process of creating two new DNA molecules from one original copy is called replication. Which statement is the BEST
    15·2 answers
  • The main goal of cellular respiration is the production of molecules.? A) ADP
    7·1 answer
  • Suppose that you have a solution of 8% sugar water in a bag. The bag is semi-permeable: water molecules can pass into and out of
    6·1 answer
  • Can dogs identify colors?" is an example of a scientific question. "Are dogs better pets than cats?" is not. Use complete senten
    9·2 answers
  • William blake maintained that imagination
    10·1 answer
  • Consider a recessive mutation that results in a complete loss of gene function. If heterozygous individuals (mutant/wild-type) a
    12·1 answer
  • I have a bump on my upper lip where it meets the skin. It has pus that comes out when I squeeze it, and it will go away after li
    5·2 answers
  • 3. Menarchel
    15·1 answer
  • How can the type of bedrock under soil affect the characteristics of the soil?
    8·1 answer
  • How does meiosis contribute to organisms being genetically diverse?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!