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
Hatshy [7]
4 years ago
5

PLEASE HELP ASAP IM TIMED!! 100 PTS WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST AND CORRECTLY

Biology
1 answer:
Vesna [10]4 years ago
4 0

Answer: More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away. But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.

Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify

You might be interested in
In which phase is the full illuminated face of the Moon visible on Earth?
Y_Kistochka [10]

Full Moon is the answer, letter B.

When the full illuminated face of the Moon visible on Earth, it is on the Full Moon phase.

><span>New moon                         -</span><span> the illuminated side of the Moon is away from the Earth. only  the shadowed side can be seen. </span>

><span>Waning gibbous               - </span>the Moon is less than fully illuminated, but, is more than half.

>Waxing crescent               - <span>first sliver of the Moon that we can see.</span>

6 0
4 years ago
Read 2 more answers
se tiene un trozo de pan de 10 gramos. si se comprime el trozo de pan. ¿cambia su volumen, su masa o su densidad?
Serggg [28]

Answer:

translate pls?

Explanation:

7 0
3 years ago
Question 1: In Drosophila melanogaster (fruit fly) white eye color (w) and stubby body shape (s) are encoded by two mutant allel
Bingel [31]

Answer:

A female Drosophila of unknown genotype was crossed with a white-eyed male fly, of genotype (w = white eye allele is recessive, w+= red-eye allele is dominant.) Half of the male and half of the female offspring were red-eyed, and half of the male and half of the female offspring were white-eyed.If the trait is dominant, one of the parents must have the trait. Dominant traits will not skip a generation. If the trait is recessive, neither parent is required to have the trait since they can be heterozygous.The female fly had to be heterozygous, Xw+ Xw.

Explanation:

5 0
4 years ago
Label the brain parts<br><br> Please help me with this assignment
Anastaziya [24]

Answer:

A = parietal labe | B = gyrus of the cerebrum | C = corpus callosum | D = frontal lobe

E = thalamus | F = hypothalamus | G = pituitary gland | H = midbrain

J = pons | K = medulla oblongata | L = cerebellum | M = transverse fissure | N = occipital lobe

 

Explanation:

hope this helppss

6 0
3 years ago
What happens in a chloroplast?
Vera_Pavlovna [14]

Answer:

Photosynthesis

Explanation:

The chloroplast creates glucose and oxygen, also the chloroplast has chlorophyll.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The renal papilla empties urine into the
    15·1 answer
  • big bang Theory that suggests the origin of the universe started with an explosion and expansion of a very hot, dense, compact f
    7·1 answer
  • Why does too much fertilizer ruin the earth? Help plz!! 
    10·2 answers
  • Which united nations agency is primarily involved in the prevention and control of hiv/aids?
    5·1 answer
  • What is the difference in sexual and asexual reproduction
    8·1 answer
  • Mark the TRUE statements Fascism is usually an agreement between three or more political parties. Fascists usually gain power af
    12·1 answer
  • Which of the following statements about water are true? Check all that apply.
    13·2 answers
  • EEG is to CT as:
    15·1 answer
  • The Heart of a small mammal is pierced by a spear of a hunter. Suggest ONE way in which this would lead to the death of the anim
    15·1 answer
  • According to many scientists, which of these probably caused a major change in the composition of Earth's atmosphere? F the weat
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!