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
grin007 [14]
2 years ago
12

The electrons that chlorophyll loses to the electron transport chain are replenished by ___________ molecules

Biology
1 answer:
irakobra [83]2 years ago
7 0

h2o / water molecules

You might be interested in
A woman in the third trimester of her first pregnancy expresses fear about the birth canal being wide enough for her to push the
NeX [460]
Relaxin

<span>Relaxin, secreted by the corpus luteum of the ovary as well as the placenta, is responsible for helping to inhibit uterine activity and to soften the cervix and the collagen in joints. Softening of the cervix allows for dilatation at birth; softening of collagen allows for laxness in the lower spine and so helps enlarge the birth canal. The effect of estrogen is to cause breast and uterine enlargement. Progesterone has a major role in maintaining the endometrium, inhibiting uterine contractility, and aiding in the development of the breasts for lactation. Human placental lactogen (hPL), also known as human chorionic somatomammotropin, serves as an antagonist to insulin, making insulin less effective, thereby allowing more glucose to become available for fetal growth.</span>
4 0
2 years ago
List 5 things wehave in common with bacterium
andrezito [222]

Answer:

Here are a few characteristics of life that humans and bacteria share

Explanation:

- Reproduction

- Evolution and adaptations

- Organization

- pH homeostasis

- Responds to stimuli

4 0
2 years ago
what genetic information can be obtained from a punnett square? What genetic information cannot be determined from a punnett squ
aleksley [76]
A punnet square determines all of the ways in which alleles can combine. It may be used to predict ratios of offspring genotypes and phenotypes. However, Punnet squares cannot determine actual outcomes. They can only predict the possibility for things to happen. The exception to this takes place when the cross occurs with two homozygous dominant or recessive genes and the resulting offspring is either be 100% homozygous dominant or recessive. 
4 0
2 years ago
What is the pH of an aqueous solution with the hydronium ion concentration
Anni [7]

Answer:

pH = 13.70

Explanation:

pH is a value used in chemistry to determine nature of solutions, quality of several chemicals, etc.

pH is defined as -log [H₃O⁺]

A solution with molar concentration of hydronium ion, H₃O⁺. of 2x10⁻¹⁴M, has as pH:

pH = -log [2x10⁻¹⁴M]

pH = 13.70

8 0
2 years ago
What was the goal of France and Great Britain ww1
Anvisha [2.4K]
The goal of France and Great Britain in WW1 was to defeat the central powers and restore peace and safety back to Europe. They wanted for the war to end quickly as possible as with each passing month of this war progressing, the money toll that it had on both of their economies was extremely big. 
7 0
2 years ago
Other questions:
  • A 2-week-old infant who presents with poor feeding, fatigue, dyspnea, and a murmur is diagnosed with a patent ductus arteriosus
    6·1 answer
  • When glucose is high, camp is _____ : cap _____ bind the lac operator, and rna polymerase _____ bind the lac promoter. high; doe
    5·2 answers
  • Which statement is true about friction?
    13·1 answer
  • The wife of a 65-year-old man tells the nurse that she is concerned because she has noticed a change in her husband's personalit
    5·1 answer
  • ? C6H12O6 + O2 → 6 CO2 + 6 H2O ΔG = –686 kcal/mol This reaction represents cellular respiration. What happens to the energy rele
    13·1 answer
  • A living microorganism or its toxin may cause human disease that is transported through the US MAIL MUST be marked as a:________
    6·1 answer
  • 3) In mice, brown eyes (B) are dominant over blue (b). A homozygous brown-eyed male mouse mates with a blue-eyed female and they
    5·2 answers
  • 5. When would it be necessary for the two daughter cells to be different than the mother<br> cel
    9·1 answer
  • Which sends water from the roots to the rest of the plant?
    12·2 answers
  • The reproductive system in both males and females are controlled and regulated by the interaction of hormones from the hypothala
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!