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
Usimov [2.4K]
2 years ago
7

Bacteria that use sunlight as an energy source are considered A. photoautotrophs. B. hetertrophs. C. saprobes. D. chemoautotroph

s.
Biology
2 answers:
ratelena [41]2 years ago
6 0

the answer is A i took the test

Zepler [3.9K]2 years ago
4 0
The answer is A. i say this because when they use sunlight as energy, cabon dioxide and water are converted into organic material, they are used as cellular functions ( such as biosynthesis and respiration ). An able autotroph is able to make his own food. 
You might be interested in
According to what you have learned about the circulatory and respiratory systems, explain how and why your heart changed its rat
maks197457 [2]

Answer:

Your heart changes its rate depending on the activity, so that it can carry blood to your muscles, and therefore it needs to beat stronger if you are performing some exercise, or not so strong if you are sleeping, for example.

Explanation:

Your heart is continuously beating to keep blood circulating throughout your body.

So, here it is why your heart changes its rate: Its rate changes depending on your activity level; it is lower while you are asleep and at rest and higher while you exercise to supply your muscles with enough freshly oxygenated blood to keep the functioning at a high level.

And how: depending on your activity level, your heart has to pump enough blood to your muscles. Blood carries needed oxygen and other nutrients. Muscles need more blood sugar than any other tissue especially when working hard. To supply your muscles with oxygen your heart needs to beat faster, and this builds up your heart muscles.

3 0
3 years ago
Please answer both questions with the correct answer :)
Nesterboy [21]
1) Speed = distance / time
s = 60 / 2
s = 30 km/h

In short, Your Answer would be Option B

2) Speed = distance / time
s = 25/4
s = 6.25 km/h

In short, Your Answer would be Option B
[ Direction not needed as it is speed not velocity ]

Hope this helps!
8 0
3 years ago
How are foods that are carbohydrates related to sugar?
BartSMP [9]
Carbohydrates are naturally occurring sugars, starches and fiber in food. All carbohydrates are made up of sugar molecules. Sugar molecules linked together form starches and fiber. In the body, starches and sugars are broken down in the digestive system to glucose.
3 0
3 years ago
Most living things need oxygen to survive. These two body systems bring oxygen into your body and then move to all your body par
Inga [223]

Answer:

Respiratory system and circulatory system.

The respiratory system allow living things to obtain oxygen from the air while the circulatory system allows oxygen to be carried around the body.

6 0
3 years ago
What would happen if there was an error in DNA replication?
Tcecarenko [31]

Answer:

When replication mistakes are not corrected, they may result in mutations, which sometimes can have serious consequences. Point mutations, one base substituted for another, can be silent (no effect) or may have effects ranging from mild to severe.

hope it's helpful

thank you

4 0
3 years ago
Read 2 more answers
Other questions:
  • What will likely happen to a species that cannot adapt to changing environmental conditions?
    10·1 answer
  • How long is the life expectancy of dolphins
    9·1 answer
  • Why roots need to use different methods to absorb water and ions?
    6·1 answer
  • What characteristics of living things does a river have?
    6·1 answer
  • What adaptation most likely helps this bird fly?
    8·2 answers
  • Why do we get ill when we get stressed?
    13·1 answer
  • A wet mount slide from a sample of Elodea leaf cells and a slide from a sample of red blood cells were initially examined using
    10·2 answers
  • Imagine that certain laws of physics could be ignored and you were able to
    8·1 answer
  • What are chromoplasts and their functions? ​
    5·2 answers
  • EMERGENCY HELP FAST!!<br><br> Fats and oils are esters. They contain a ____ group.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!