Populations of organisms have many genetic variations. Where do these come from?

Answers

Answer 1

Answer: Usually from a mutation in the genetic code

Related Questions

The sympathetic nervous system controls all _________ responses of the body. a. conscious b. involuntary c. emergency d. repeated
a population ecologist determines the number of a oak trees per square unit in a forest. what is he trying to infer by doing so?
What important idea from Thomas Malthus inspired Darwin?
Aristotle contributed to the science of taxonomy when he classified animals in two groups and plants in _____ groups. 3 4 5 2
Where do the majority of earthquakes in the United States occur?

true or false In a solution of carbon dioxide in water (a soft drink) the carbon dioxide is the solute?

Answers

False water is the solute not c02

the answer is true. In general the material with a small a mount in the solution is the solute

PLEASE HELP ME! I really need to pass :DIf a producer has 23,400 kcal of energy, how much energy will the 3° consumers receive?
and
If the 2° consumers have 467 kcal, how much energy did the producers have?
Thank you to any answers!

Answers

a) 23.4 Kcal is the energy will the 3° consumers receive.

b) 46700 Kcal is the energy producers have.

Explanation:

The energy value is given for the trophic levels. There is a 10 % rule of energy transfer which is applicable to the producers and consumers in the energy pyramid. According to it 10 % energy is transmitted to upper level in a pyramid while 90% gets dissipated in the form of heat.

Energy of producer = 23400 kCal

energy transferred to tertiary consumer = ?

At first the energy transferred to primary consumer is calculated as:

10 % of 23400 Kcal

$(10)/(100)$ x 23400

energy transferred to primary consumer = 2340 Kcal

energy transferred to secondary consumer:

10% of primary consumer energy

$(10)/(100)$ x 2340

= 234 Kcal

energy transferred to tertiary consumer:

10% of energy of secondary consumer

$(10)/(100)$ x 234

= 23.4 Kcal

Tertiary consumer will recieve 234 Kcal of energy.

b) Energy of secondary consumer is 467 Kcal

energy of producers =?

energy of producer was 100 times the energy of secondary consumer

467 x 100

= 46700 Kcal.

Positively charged sodium ions transport electrical impulses in the nervous system. Which subatomic particle does sodium lose to attain a positive charge?

Answers

Sodium would lose an electron to become a positively charged ion.

This type of harvesting leaves behind a diverse forest.wood harvesting
wild firing
selective cutting
clear cutting

Answers

The right answer for the question that is being asked and shown above is that: "selective cutting" This type of harvesting leaves behind a diverse forest. The type of harvesting is called the selective cutting.

List the three types of plate boundaries and describe the relative motion at each of them

Answers

The three types of plate boundaries are ;

Divergent plate boundary
Convergent plate boundary
Transform plate boundary

The divergent plate boundary ; This boundary is formed when tectonic plates move away from each other thereby forming new crust below the earth in the process

Convergent plate boundary ; This plate boundary is formed by the collision of two or more tectonic plates. If one of colliding plates is an Oceanic crust tectonic plate the collision will lead to a subduction

Transform plate boundary ; At this boundary tectonic plates slide pass one another without having any significant effect on the earth crust

Hence we can conclude that the three types of plate boundaries are ; Divergent , convergent and transform

Learn more : brainly.com/question/21536887

Divergent plate- The motion of the boundary is outward making new crust beneath the earth Convergent - going inward the denser crust goes under the less dense crust which pulling the crust inside the earth melting it down Transform- is just slide by each other nothing is going into the earth or spreading out making new crust is just slide the plate boundaries

10) What is the difference between primary and secondary succession?a. Primary succession is slow, and secondary succession is fast
b. Secondary succession begins on soil and primary succession begins on bare rock
c. Primary succession begins when a natural disaster disturbs an ecosystem and secondary succession does not
d. Secondary succession begins with pioneer species such as lichens, and primary succession begins with shrubs and grasses

Answers

Answer:

b. Secondary succession begins on soil and primary succession begins on bare rock

Explanation:

took test :)

Other Questions

The original location of an earthquake is also known as the A. horizon. B. epicenter. C. hotspot. D. magnitude.

Which part of the dna molecule codes for information that is translated into proteins?

Which type of mutation always creates a stop codon?

The relationships of plants and animals to each other and their environment is what ecologists call _____.