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
lesya692 [45]
3 years ago
12

Summative test in science quarter 1 (pasagot po sa magaling sa science)

Biology
1 answer:
lianna [129]3 years ago
7 0

Answer:

sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would

You might be interested in
How can pollution affect the food chains and the food webs
VLD [36.1K]
Pollution can effect the food chain and the food web In many ways. The first of wich is it can kill off animals. A good example of this is marine life.  
7 0
4 years ago
Read 2 more answers
1)Which of the following is a source of genetic variation
Svetllana [295]

The answer is; B

Mutations change the order of nucleotide and therefore affects codons that code for proteins. A different protein is thus produced from the wild type hence creating variations.  Genetic shuffling in sexual reproduction, also called gene recombination occurs during meiosis and also when different organisms exchange genetic material such as in bacteria.  

6 0
3 years ago
Which level on on the pyramid will have the most amount of energy?
serious [3.7K]

Answer:

<em>Hello, In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy. The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it. (Why is there less energy available at the top of an energy pyramid than at the bottom?) Less energy is available to organisms in the upper levels because each organism releases some of the chemical energy in food to the air as thermal energy. Less total energy is available with each step up energy pyramid. Hope That Helps!</em>

5 0
3 years ago
How many million years ago did the supercontinent Pangaea form
igor_vitrenko [27]

Answer:

335 million years ago

Explanation:

Pangaea or Pangea ( /pænˈdʒiːə/) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and began to break apart about 175 million years ago.

8 0
3 years ago
Which of the following examples can cause gene flow between populations?
I am Lyosha [343]
Bird droppings that contain seeds from a different location" is the correct answer. Sometimes when seeds from different areas are ingested, the genetic material is passed on.  
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement is the BEST definition of an atom? A) Anything that has mass and occupies space. B) The smallest particle that h
    5·2 answers
  • What are viruses considered to be non-living?
    14·2 answers
  • What is a scientific concept
    12·1 answer
  • The order of impulse conduction in the heart, from beginning to end, is __________.
    6·1 answer
  • What process results in two complete strands of DNA from one original strand?
    15·1 answer
  • In pea plants, yellow (Y) seed color is a dominant trait, and green seed color (y) is a recessive trait. Which resulting plant w
    13·2 answers
  • Sam came home from school with a cold caused by a virus and his sister, Ana, caught it from him. Sam got well and went back to s
    14·2 answers
  • Salt water is classified as a blank and a solution
    5·1 answer
  • What is fire exclusion?
    12·1 answer
  • Trong các cây trồng sau khả năng tích lũy nh4 tốt nhất là
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!