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
EleoNora [17]
3 years ago
15

1. Which of the following occurs prior to speciation?

Biology
2 answers:
Mashutka [201]3 years ago
8 0

The 3rd question is actually B. Allele frequencies change in different ways

Digiron [165]3 years ago
7 0
1) C
A population has to be isolated for speciation
2) D
Different species are incapable of reproducing with one another
3) D
When a population is contained, the recessive alleles can become dominant within the population
You might be interested in
During winter, tree sap can sometimes freeze and cavitation (the formation of an air pocket) may occur. Which one of the followi
SVETLANKA909090 [29]

Answer:

Option 3. cohesion transpiration is the correct answer.

Explanation:

Plants release water through transpiration while cohesion is responsible for moving more water throughout the xylem. When the water evaporate through the stomata, more water is pulled from roots into stem and eventually reach the leaf this process is called transpiration-cohesion theory.  (More explanation in attached Picture)

8 0
2 years ago
Eric follows a vegetarian eating pattern, and he wants to know whether he needs to take any vitamin and mineral supplements. wha
Reil [10]

It would be most important for Eric to find out his <em>zinc, iron and vitamin B12 (or  riboflavin) levels, and ensure that he is obtaining adequate amounts of these vitamins and minerals through vegetarian sources </em>.

A vegetarian diet is typically low in zinc rich foods, since meat, shell fish and eggs are the most abundant sources of zinc. In order to ensure that he obtains sufficient zinc, Eric should make sure he consumes vegetarian zinc sources such as legumes, lentils, dairy, nuts and seeds on a daily basis.

Since iron and vitamin B12 are also difficult to obtain from vegetarian sources, Eric should consume iron rich foods such as spinach, kale, whole grains, broccoli, legumes,etc., on a daily basis. As for vitamin B12, daily supplementation of 2.4 μg is recommended for vegetarians. Alternatively, riboflavin fortified cereals and grains are also recommended to meet daily riboflavin requirements.

5 0
3 years ago
Based on what you have learned from your rankings in parts a and b, why is it generally hotter in summer than in winter?.
lesya692 [45]

We feel hotter in summer than in winter because the temperature is generally higher than in winter.

<h3>What are seasons?</h3>

There are three seasons on earth namely winter, summer, and rainy season. In the winter season, the temperature is cold and during summer the temperature is higher.

Timing and characteristic of season depend upon the location of the earth. The time of a year region experience season depends on it is northern hemisphere or southern hemisphere.

The southern hemispheres experiences winter while northern hemisphere experiences summer. The cycle of seasons is caused by earth's tilted towards the earth. The planet rotates around an axis.

Therefore, We feel hotter in summer than in winter because the temperature is generally higher than in winter.

To learn more about seasons, refer to the link:

brainly.com/question/19009677

#SPJ2

5 0
1 year ago
Measurement of physiological arousal in breathing rate, hear rate, and blood pressure (which can mark emotional response) is als
zysi [14]

Emotion is one of the responses of an organism (whole) which involves physiological arousal. Other than indicating emotion, physiological arousal or heightened physiological activity is modernly used in polygraphs. Polygraphs or lie detector notes changes in blood pressure, pulse, respiration while the subject is asked and answers questions. It is based on the assumption that dishonest answers are indicated with physiological arousal.

4 0
3 years ago
Read 2 more answers
What are the two major mechanisms by which bacterial populations generate genetic diversity
kvv77 [185]

<u>Answer:</u>

<em>The two major processes by which bacterial populations produce genetic diversity are gene transfer and mutation.</em>

<u>Explanation:</u>

Gene transfer in bacteria occurs through conjugation. In the process of conjugation, the plasmid gets transferred from bacteria to another. Mitosis leads to the formation of two identical individuals.

In this process, the chromosome and the DNA content of the daughter cell remains the same as the mother cell. Bacteria also divides by the process of binary fission.

5 0
3 years ago
Other questions:
  • Air pressure __________ as we rise higher in the Earth's atmosphere. increases decreases
    11·1 answer
  • ~PLEASE HELPP~ Burning fossil fuels causes a movement of carbon from the
    8·2 answers
  • The halogens are the most reactive among all
    9·2 answers
  • 3: Hominids are the group of primates that includes humans, gorillas, and chimpanzees. In 1997 a team of scientistsdiscovered th
    7·1 answer
  • 28. Which is not a correct phase in the Calvin cycle?
    5·2 answers
  • Can you please help please
    8·2 answers
  • During photosynthesis plants take in___from the atmosphere and release___ back into the atmosphere
    12·1 answer
  • Most animals develop from what embryonic tissues? Select all that apply.
    12·1 answer
  • Please help! Will mark brainlisttt !!!!
    9·2 answers
  • What it do flight crew
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!