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
Softa [21]
3 years ago
8

Some people say that we need to phase out fossil fuel use and replace it with clean energy. Why is fossil fuel use becoming unde

sirable?
Biology
1 answer:
vekshin13 years ago
8 0
Many reasons including that burning of them (including use in cars) creates greenhouse gases which lead to climate change. There are alternatives becoming available that lower the greenhouse gas emissions...healthier planet!
You might be interested in
When you drink sea water, what type of solution do you expose your cells to?
Alex Ar [27]
The answer should be 1, hypertonic. 

Seawater is highly concentrated in salt, and with that being said, it has a low concentration of water molecules. 

Hypertonic means the solution has a lower water concentration than the other side (cell), vice versa for hypotonic, a high water concentration than the other side of the solution, and for isotonic, it means that both sides of the solution have the same water concentration. 

So, the answer should be 1, hypertonic. 

In addition, when your cells are exposed to hypertonic solution, the water molecules in your cells will start flowing out of the cells, to the outside, due to the difference in water concentration leading to osmosis. Your cells will lose so much water that they may even shrink!
7 0
3 years ago
What is the name for the science that studies evolution that oc-
abruzzese [7]

Answer:

D. Population genetics

Population genetics is the study of genetic variation within populations, and involves the examination and modelling of changes in the frequencies of genes and alleles in populations over space and time. ... In natural populations, however, the genetic composition of a population's gene pool may change over time.

Explanation:

microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then

macroevolution - Macroevolution in the modern sense is evolution that is guided by selection among interspecific variation, as opposed to selection among intraspecific variation in microevolution (this goes over huge groups of different species) Not it then

gene pool - The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species. (Not the study of evolution in a population) Not that then

So it has to be D

3 0
2 years ago
Read 2 more answers
PLEASE HELP
Margaret [11]

Answer:

World Wildlife Federation (WWF)

Explanation:

They're one of the MANY organizations who help with wildlife and their habitats.

5 0
1 year ago
What are two characteristics that all bacteria share?
dlinn [17]

They live every where

They can effect you and other organisms

They are microscopic
7 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
Other questions:
  • Mirror neurons are believed by some scientists to provide a biological basis for:
    7·1 answer
  • Fungi are used to make some foods and medicines. Name two specific types of foods or medicines that come from Fungi. (4 points)
    12·1 answer
  • Hornless (H) cattle is dominant over horned (h). A homozygous harnless bull is mated with a homozygous horned cow. What will be
    9·1 answer
  • What do you think classifies an organism as living ?
    12·1 answer
  • Things that elephants do to engineer the ecosystem
    9·1 answer
  • When you consume protein, your body breaks it down into smaller molecules known as __________?
    15·1 answer
  • What occurs to the cell during mitosis?
    15·2 answers
  • Which of the following is NOT a feature of asexual reproduction? *
    10·2 answers
  • Which statement best describes this role of plastids in the plant cell?
    6·1 answer
  • Which effect could a mutation in mRNA have on the production of proteins?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!