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
Degger [83]
3 years ago
6

Which statement explains why greenhouse gases are needed for the survival of life on Earth?

Biology
2 answers:
Pavlova-9 [17]3 years ago
8 0

Answer:

B

Explanation:

Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. This heat trapping is known as the greenhouse effect. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm.

Anastaziya [24]3 years ago
6 0

Answer:

B.  Without greenhouse gases, Earth would be too cold for life to exist.

Explanation:

Greenhouse gas (carbon dioxide) can reflect sunlight back to earth so it keeps the energy and make the planet warmer. Too many greenhouse gases make the planet too hot and cause global warming, but if its too little then the planet will be colder.

Colder temperature can also be dangerous as it will kill many organisms that can't resist it. The ideal condition should be in between, not too hot and not too cold.

You might be interested in
En el hombre el color negro de los ojos “A” domina sobre el color azul “a” Una pareja en la que el hombre tiene los ojos negros
umka21 [38]

Las respuestas a estas preguntas son:

a) Genotipo del padre Aa (ojos negros)

b) Cruzamiento: Aa (padre) x aa (madre)

c) Frecuencias genotípicas esperadas: 1/2 Aa; 1/2 aa  

En genética, dominancia completa se refiere al proceso  de herencia en la cual un individuo heterocigota, es decir, el individuo que presenta dos alelos diferentes para el mismo gen, presenta el mismo fenotipo que un individuo homo-cigota para el alelo dominante (el alelo dominante es aquel que enmascara la expresión del alelo recesivo en individuos heterocigotas).

En este caso, el carácter 'color de ojos' presenta un patrón de herencia monogénica, donde el alelo 'A' dominante codifica para el rasgo fenotípico ojos negros, mientras que el alelo 'a' recesivo codifica para el rasgo fenotípico ojos azules.  

En el ejemplo, la pareja tuvo progenie en la cual uno de los hijos presenta el rasgo recesivo ojos claros, con lo cual el padre debe ser heterocigota y poseer un alelo recesivo 'a'; mientras que la madre expresa el fenotipo recesivo y por lo tanto su genotipo es 'aa'. En consecuencia, el cruzamiento de un padre heterozigota 'Aa' con una madre homo-cigota recesivo 'aa' producirá una descendencia con una frecuencia genotípica esperada de 1/2 (50%) de hijos con ojos 'color negro' de genotipo Aa y 1/2 (50%) de hijos con ojos 'color celelste' de genotipo aa >>

Cruzamiento: Aa (padre) x aa (madre)

Gametos padre: 1/2 A; 1/2 a

Gametos madre: 100% a

Cuadro de Punett (combinaciones gaméticas):

                  A           a

a               Aa          aa

a               Aa          aa

En consecuencia,  este cruzamiento producirá 50% individuos ojos color negro (genotipo Aa) y 50% individuos con ojos color celelste (genotipo aa)

Podés encontrar más información sobre este tema en:

brainly.com/question/22398195?referrer=searchResults

7 0
3 years ago
What is the role of RNA in protein production
Marina86 [1]

Answer:

Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.

Explanation:

7 0
3 years ago
The largest vein in animal's body is the A. femoral vein. B. aorta. C. vena cava. D. coronary vein.
Gennadij [26K]
The largest vein in an animal's body is in fact the Vena Cava.  
Hope I helped :)
5 0
3 years ago
Read 2 more answers
How can different amino acids affect secondary structure
Igoryamba

Answer:

Exposure to positively charged amino acids (arginine and lysine) is found to clearly stabilize the secondary structure. Kinetically, each amino acid promotes folding by generating a large increase in the folding rate with little change in the unfolding rate.

5 0
3 years ago
Describe a stoma, and relate the function of the stoma to your description.
stepladder [879]

Answer:

BOTONY:

any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular spaces.

MEDICINE :

an artificial opening made into a hollow organ, especially one on the surface of the body leading to the gut or trachea.

Explanation:

3 0
3 years ago
Other questions:
  • Why would plants have pigments that are not photosynthetically active
    7·1 answer
  • 1. Simple columnar and pseudostratified columnar epithelium both are considered simple epithelium that consist of column-shaped
    15·1 answer
  • What are the processes of a rock becoming a rock
    12·1 answer
  • What is the difference between a vascular and a nonvascular plant? In your answer, discuss how water moves in each type of plant
    12·1 answer
  • The similarities of a birds wing and an insects wing are evidence of what.
    7·1 answer
  • What can you learn about by studying DNA?
    6·2 answers
  • 8
    13·2 answers
  • What is the forecast for Eastern Texas? Include the front type and weather conditions. How do you know this
    14·1 answer
  • ◕‿↼ Please Help Asap, Tysm!
    9·2 answers
  • I need help please and thank you
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!