Biology, 14.11.2019 02:31, ninilizovtskt

Fill in the blank: when you paddle a boat in the water. the force of your paddle will push the water which will apply an equal force back on you. there is very little resistance to this motion because there is a limited force between the canoe and the surface of the water due to the smooth surface

Answers: 3

Show answers

Answers

answered: Guest

the answer is "a.) well–developed vascular system."

explanation:

answered: Guest

Idont understand i'm sorry

answered: Guest

the african cheetah.

this species has a relatively low level of genetic

variation because the population was reduced to a small size approxi-

mately 10,000 to 12,000 years ago.

chapter outline

24.1

genes in populations and the hardy-

weinberg equation

24.2

factors that change allele and genotype

frequencies in populations

24.3 sources of new genetic variation

population genetics

until now, we have primarily focused our attention on genes

within individuals and their related family members. in this

chapter and chapters 25 and 26 , we turn to the study of genes in

a population or species. the field of

population genetics

is con-

cerned with changes in genetic variation within a group of indi-

viduals over time. population geneticists want to know the extent

of genetic variation within populations, why it exists, and how it

changes over the course of many generations. the field of popu-

lation genetics emerged as a branch of genetics in the 1920s and

1930s. its mathematical foundations were developed by theoreti-

cians who extended the principles of gregor mendel and charles

darwin by deriving formulas to explain the occurrence of geno-

types within populations. these foundations can be largely attrib-

uted to three scientists: sir ronald fisher, sewall wright, and j. b. s.

haldane. as we will see, support for their mathematical theories

was provided by several researchers who analyzed the genetic com-

position of natural and experimental populations. more recently,

population geneticists have used techniques to probe genetic

variation at the molecular level. in addition, staggering advances

in computer technology have aided population geneticists in the

analysis of their genetic theories and data. in this chapter, we will

explore the genetic variation that occurs in populations and con-

sider the reasons why the genetic composition of populations may

change over the course of several generations

answered: Guest

Both prokaryotic and eukaryotic cells have ribosomes and cell membranes

Other questions on the subject: Biology

Biology, 21.06.2019 21:20, cxndii13

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Answers: 2

continue

Biology, 22.06.2019 08:30, neariah24

Which group of molecules are targeted by the kinases in order to control this movement

Answers: 2

continue

Biology, 22.06.2019 14:30, KF16

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

Answers: 1

continue

Biology, 22.06.2019 16:20, kdenormandie3122

What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above select the best answer from the choices provided a b c d

Answers: 2

continue

Do you know the correct answer?

Fill in the blank: when you paddle a boat in the water. the force of your paddle will push the wate...