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
dybincka [34]
3 years ago
6

Question 1 of 10

Biology
1 answer:
Neporo4naja [7]3 years ago
4 0
Clear wheat her from this prediction
You might be interested in
The energy required to run the Calvin cycle reactions of photosynthesis comes from which two substances produced during the ligh
Lelu [443]

Answer:

a. ATP and NADPH

Explanation:

Light-dependent reactions of photosynthesis include splitting of water in the presence of sunlight and release of electrons. The electrons move from the reaction center of the PS-II via electron carriers to the PS-I. From the reaction center of PS-I, the electrons finally reach NADP reductase and reduce NADP into NADPH.

During this electron transfer via electron carriers, a proton concentration gradient is generated across the thylakoid membrane. The energy of this gradient is used to drive ATP synthesis. ATP and NADPH formed during the light-dependent phase of photosynthesis are then used during the reactions of the Calvin cycle.

6 0
3 years ago
How are rivers and streams able<br> to keep algae from growing?<br><br><br><br> Plz help
irakobra [83]

Answer:

Answer A

Explanation:

5 0
3 years ago
Aldosterone ________. A) is secreted by the posterior pituitary B) functions to increase sodium reabsorption C) presence increas
Vesnalui [34]

Answer:

Option B) functions to increase sodium reabsorption.

Explanation:

Aldosterone is an hormone secreted by the cortex of the adrenal gland. The adrenal gland is situated at the superior poles of the right and left kidneys.

Aldosterone regulates sodium homeostasis and as such helps to control blood volume and blood pressure.

Aldosterone is secreted in response to decreased blood pressure (hypotension) to increase sodium reabsorption from urine, sweat, and the gut. Also excessive aldosterone levels (too high sodium) can lead to high blood pressure (hypertension).

5 0
3 years ago
Need The Answer ASAP
Anna35 [415]

Answer:

<em>The correct option is B) as the light colored moths were seen and eaten, the allele for dark colour became more prevalent in the population.</em>

Explanation:

The process of natural selection tends to favour those organisms which are better adapted to live in an environment. Evolution changes the allele frequencies of a population over time depending on the traits favoured by natural selection.

Before the industrial revolution, the colour of the trees was lighter and hence, the light coloured moths were better adapted to such environments as they could hide from predation. After the industrial revolution, the colour of the woods of trees became darker. The light coloured moths were no more able to hide from their predators and hence their population declined.

4 0
3 years ago
In a duplication, a person has more than two alleles for a certain trait. crossing-over between sister chromatids has occurred t
Leni [432]

The right answer is a person has more than two alleles for a certain trait.

Duplication is a genetic mutation characterized by the doubling of genetic material on a chromosome. There are several mechanisms that result in the duplication of either a large chromosomal portion, a gene, or a nucleotide sequence.

5 0
3 years ago
Other questions:
  • A plant's photoperiod is the amount of time each day that the plant receives sunlight. A plant with a 12L:12D photoperiod receiv
    5·1 answer
  • Green plants get their energy they need to make food
    7·2 answers
  • Acrostic poem for the word evolution
    13·1 answer
  • In a feeding experiment, ducks are given their choice of white or wheat bread. Which of these is a null hypothesis? Select one:
    13·2 answers
  • What is Vegetation propagation ? Write its Advantages
    14·1 answer
  • Gas exchange in an echinoderm takes place through
    11·1 answer
  • A eukaryotic mutation upstream of a particular gene has been identified that changes the sequence of the TATA box to GATA. How w
    12·1 answer
  • FAST!!! NEED HELP!
    11·2 answers
  • Please help me, I attached the question because it has a picture for the question. help ASAP
    10·1 answer
  • Movement of xylem sap from roots to leaves __________.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!