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
UkoKoshka [18]
3 years ago
15

The first earthling to orbit our planet was just two years old. Her name was Laika, and she was picked up in the streets of Mosc

ow in 1957, just a few days before the launch of Sputnik 2. Laika was a terrier mutt, and her flight aboard Sputnik 2 paved the way for space exploration during a time when scientists weren’t sure if spaceflight was safe for living organisms. Since then, humans have orbited Earth and even walked on the moon. Currently NASA is planning a mission to send astronauts to a nearby asteroid, and commercial companies are planning civilian missions to the moon. Unmanned space probes have traveled past Neptune and Pluto to the outer edge of our solar system and entered interstellar space.
Space travel has come a long way since Laika, but there are still many celestial bodies waiting to be explored. What do you think will be the biggest space mission of the twenty-first century? What challenges do you anticipate that the humans or space probes will experience on this journey? What specific accommodations or technological advancements will be needed to make the mission successful?
Biology
1 answer:
Fofino [41]3 years ago
8 0

i think since we have gone as far as our solar system boundaries the next big thing to achieve is to actually travel to another solar system, the challenge that would face anyone trying to reach another solar system is the distance, the distance is too long to cut with a speed slower than the speed of light in fact even the speed of light is not convenient for someone to travel and reach the other side before he dies and nothing can reach or exceed the speed of light because then they would lose their mass to energy, two proposed technologies to get past that is hibernation which is keeping the body alive in a sleeping state using a break through technology the other would be using a wormhole but we don't know of any in the moment

You might be interested in
In certain species of plants, purple flowers (P) are dominant to white flowers (p). If two heterozygous plants are crossed, what
love history [14]
1/4 or 25% will have the homozygous recessive genotype. 25% will have the homozygous dominant phenotype. 50% will be heterozygous. We would use a punnet square to figure this out. I’ve attached a picture of one to help you

7 0
2 years ago
How is a whale more like a human than a fish? CHOOSE ALL THAT APPLY 1.warm blooded 2.breast feeds its young 3.spends much time o
HACTEHA [7]

Answer:

1. warm blooded, 2. breast feed its young

Explanation:

Whales are warm blooded, which means they keep a high body temperature that does not change in the cold water. Fish are cold-blooded, so their body temperature changes depending on the temperature of their environment. AND hales are other mammals that feed their young milk too, although it takes plenty more to feed them than human babies

7 0
2 years ago
How is the energy produced by respiration stored?
harina [27]
Energy produced by the various process of respiration stored in the form of ATP within the tissues
5 0
3 years ago
2. How has genetics, combined with<br> paleontology, added to our<br> understanding of evolution?
motikmotik

Answer:

To find the extinct species and their divergence of characters can be studied using molecular genetic techniques.

Explanation:

  • Paleontology is the study of ancient species and their remaining that were found millions of years ago. These species extinction can be found and manipulated to find out the origin or divergence of species from their origin
  • The samples of these species may contains their remains that help the biologist to isolate and analyze their protein or DNA. when the DNA is isolated their sequences can be generated using molecular biology techniques.
  • When the sequences are identified by advanced molecular biology techniques, the existence and similarities of different species due to their convergence or divergence can be identified.
  • By identifying the convergence or divergence the characteristics, evolutionary change in behavior, variation in appearance can be studied.
  • By using these techniques, biologist have found that <em>homo sapiens</em>  are 99% have their similarities with chimpanzee
  • Thus, using genetics in paleontology helps us to understand adaptation a species is changing according to the evolutionary changes.

6 0
3 years ago
In the nucleus, dna is wrapped around _____ to form _____.
Sonja [21]
The answers would be histones; nucleosomes.

Sentence form: In the nucleus, DNA is wrapped around histones to form nucleosomes.
3 0
3 years ago
Other questions:
  • What is the most important nerve of the digestive tract?
    5·2 answers
  • How do plants absorb light energy from the sun?
    15·2 answers
  • Which water source becomes polluted as it travels over the earth?
    6·2 answers
  • A single nucleotide of DNA is composed of whichof the following substances?
    15·2 answers
  • The humerus is the long bone that extends from the shoulder to the elbow. Which skeletal system does the humerus belong to?
    13·2 answers
  • According to the graph, which renewable energy resource did the United States use MOST during 2007?
    12·2 answers
  • How does the process of meiosis ensure that each generation of offspring has the same number of chromosomes as the generation be
    11·1 answer
  • Who is experiencing the first indicator of the onset of puberty in a typical female? a. Mary, whose pubic hair has started to gr
    11·1 answer
  • Which vocabulary goes with which letter​
    13·2 answers
  • Name two substances which might diffuse out of the blood and into the body cells. [2]
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!