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
Drupady [299]
3 years ago
12

External fertilization occurs mostly in _____.

Biology
2 answers:
enyata [817]3 years ago
7 0

Answer ; A.) Aquatic Animals .

Stells [14]3 years ago
4 0

<em><u>A) Aquatic Animals</u></em>

That should help you hope I helped

You might be interested in
In semiconservative dna replication, each new double helix formed will have
Gnesinka [82]
In semiconservative DNA replication, each new double helix that will form will have 1 polynucleotide strand that is from the old DNA molecule and is an Old or Parent strand, and will have a polynucleotide strand from the newly synthesized one, the new DNA strand.
7 0
3 years ago
Using fossils, what can scientists most accurately determine about a mass extinction?
andrew-mc [135]
Around what time that they became extinct. They measure the amount of decay on the bone, and it gives them pretty accurate info
6 0
3 years ago
7th grade work PLEASE help
dolphi86 [110]

Answer:

1. Greenhouse gas -  Without greenhouse gases, the Earth would be a frozen planet.

2. Increase of oxygen - The increase of oxygen caused a cooling event.

3. Asteroid impacts  - Asteroid impacts caused climate catastrophes

4. Tectonic plates - Tectonic plates can warm or cool the planet

5. Cloud covering- Cloud cover complicates global warming

Explanation:

Explanations;

1. In the greenhouse effect, gases in the Earth’s atmosphere (such as carbon dioxide, methane and nitrous oxide) trap infra-red radiation from the Earth that would otherwise be radiated to space. Thanks to this natural process, the Earth’s surface has an average temperature of 15°C w1. Without these gases, our planet would be an icy -18°C, and life as we know it would not be possible.

2. Some 2.5 billion years ago, there was no oxygen in the Earth’s atmosphere. Although the Sun was less bright back then, our planet was habitable partly because the atmospheric concentration of methane was 1000 times greater than it is now. All this changed, however, with the Great Oxygenation Event, which was triggered by the presence of blue-green algaew5. These microscopic organisms had evolved to carry out photosynthesis, and they produced oxygen as a waste product.

3. Around 66 million years ago, the 10 km diameter Chicxulub asteroid collided with the Earth, resulting in the demise of the dinosaursw7. The impact threw dust into the stratosphere, which is thought to have blocked out 50% of the sunlight reaching the Earth. This would have compromised photosynthesis and led to the collapse of food chains. It would also have resulted in a dramatic fall in global temperatures, plunging the Earth into an ‘impact winter’ that would persist for a decade.

4. The Himalayan mountain range – formed as a result of the collision between the Indian and Eurasian tectonic plates – is a prime example of how plate tectonics can have an impact on climate. Over the past 50 million years, the slow uplift of the Himalayas has exposed new rock to chemical weathering. In this process, carbon dioxide from the atmosphere binds to certain minerals in the rock, reducing the amount of atmospheric carbon dioxide and cooling the planet.

5. Clouds have important consequences for the Earth’s climate. Low, thick clouds cool the Earth’s surface, while high, thin clouds warm the climate. Key to the formation of clouds are aerosols – tiny particles that are suspended in the atmosphere. They act as tiny ‘seeds’ on which water vapour condensesw10. Aerosols are much more than simply what you find in a hairspray can. They can be natural (such as dust or sea salt) or anthropogenic (such as pollutants or smoke). An increase in anthropogenic aerosols could therefore result in more cloud formation, which (depending on the cloud height) could potentially offset the full extent of global warming.

Just ask for more explanation, hope this helps.

6 0
2 years ago
9. A hypothesis must be both
Elden [556K]
D! Predictable and controlled
6 0
3 years ago
Why do some streams and rivers cause more erosion and deposition than others?
uranmaximum [27]
Because water can dent things. You seen the movie 2012? Think of the aftermath. Think about japan. The canyons had to do with something about water
5 0
3 years ago
Other questions:
  • 1. Which of the following is always single-stranded?
    8·2 answers
  • Assessment of an elderly female client reveals the presence of bilateral pitting edema of the client's feet and ankles and pedal
    15·1 answer
  • Katie designed an experiment using a paint roller pan, sand, and water. The steps of the experiment are listed below.
    11·2 answers
  • Jess has A- blood type (the negative refers to the status of the Rh antigen), has never received a blood transfusion, and never
    12·1 answer
  • HEY BRAINY USERS I NEED YOUR HELP MY WORK IS DUE TODAY AND I STRESSING SO MUCH PLZ HELP!!!
    7·2 answers
  • Which best defines cohesion <br>​
    12·2 answers
  • Why is it inportant to the mouth and stomach are near the start of the digestive system
    8·1 answer
  • What role does cellular respiration play in the carbon cycle
    6·2 answers
  • Select the correct text in the passage.
    14·1 answer
  • How do scientific most often gain new knowledge?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!