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
AnnZ [28]
3 years ago
10

_____ evolved during the jurassic or cretaceous periods

Biology
2 answers:
BARSIC [14]3 years ago
6 0
It could be dinosaurs, or a specific species... could you be more specific with what it's related to?
dedylja [7]3 years ago
4 0

Answer:

Angiosperms  evolved during the Jurassic or Cretaceous periods.

You might be interested in
Did it rain today in texas?​
svetoff [14.1K]

Answer:

No, it did not rain today in Texas.

5 0
2 years ago
Read 2 more answers
The major cause of water pollution by industries involves
Luba_88 [7]

Answer:

Toxic chemicals is a major cause of water pollution. In most cases, the toxic chemicals came from the residual from production process after companies done making their product

Explanation:

3 0
2 years ago
A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
Selective pressures created by environmental factors can lead to success of __________ individuals in a population. A) asexual B
Leona [35]
Selective pressures created by environmental factors can lead to success of <span>mutual individuals.  So it is D</span>
8 0
2 years ago
Read 2 more answers
What is science? State five aspects of science? ​
Arlecino [84]

Answer:

Explanation:

Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.

Five key descriptors for the scientific method are: empirical, replicable, provisional, objective and systematic.

3 0
2 years ago
Other questions:
  • If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
    12·1 answer
  • PLZ HELP WILL GIVE BRAINLIEST
    5·2 answers
  • Which events occurred during the Space Race? Select three options.
    13·2 answers
  • 5. A scientist who studies rain, lakes, and rivers (1 point)
    9·1 answer
  • Match the diagnostic methods related to the female reproductive system with their descriptions.
    6·2 answers
  • Name 3 injuries and two diseases that affect the skeletal system.
    15·1 answer
  • A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: ex
    14·1 answer
  • Describe how the DNA is stored in this prokaryotic cell. Is it organized? Can it be found in one small area?
    12·1 answer
  • A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structu
    14·2 answers
  • How is alpine tundra different from Arctic and Antarctic tundra?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!