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
andriy [413]
2 years ago
8

Help plz

Biology
1 answer:
MatroZZZ [7]2 years ago
7 0

Answer:

This is because in biology, energy is transferred from organism to organism and some energy is lost along the way. Each energy transfer results in a loss of energy, so that energy is always at a lower level and can never be returned to its original high energy level. On the other hand, chemical elements can form products, then that reaction can be reversed and break back down into reactants. Additionally, the law of conservation of matter says that matter can't be created or destroyed, only transferred from one form to another.

You might be interested in
Do humans have an open or closed circulatory system? Explain.​
mixer [17]

Answer:

Explanation:

Organisms have different forms of circulatory systems. Humans have a closed circulatory system, while many mollusks and other invertebrates have an open system. In a closed circulatory system, blood is enclosed within blood vessels.

4 0
2 years ago
At the end of the term, the professor locks the students in the classroom with plenty of food and water and leaves them there fo
levacccp [35]

Answer:

a. 0.7

b. 0.3

c. Yes

d. 90

Explanation:

As the random mating population was escaped from external evolutionary forces such as mutation, natural selection, and migration, the gene frequency will not change over time. The population will be at Hardy-Weinberg equilibrium throughout the time.

<u>As the number of sleepyheads (recessive trait) was 90 out of class of 1000 students at the start of course.</u>

<u />

q²=0.09 ∵ fraction of sleepyheads = 90/1000 = 0.09 denoted by q²

q that is the recessive gene frequency will be equal to 0.3 (by taking square root of P²

Hence, <em>allele frequency of a allele is 0.3</em>

<em></em>

As, frequency of dominant allele A is denoted by letter p and p+q=1

∴ p=0.7 As p=1-0.3

Hence,<em> allele frequency of A allele is 0.7</em>

<em></em>

Counting the probability of aa alleles (sleepyheads);

As a= 0.3

∴ aa= 0.3×0.3 = 0.09 (In terms of percentage, it is 9%)

To 0.09×1000= 90 or 9% of 1000 = 90

Hence, 90 students should be sleepyheads.

8 0
3 years ago
I've had my cat for three years. In that time she's gained half a pound. Explain the origin of her increased mass and whether at
dimaraw [331]
She has been eating creating additional atoms creating more mass and mass is the same as wen it was consumed
6 0
2 years ago
Which of the following is NOT a characteristic of life? Also, explain why and I give you a 5 stars.
Fantom [35]

Answer:

c

Explanation:

a b and c are all signs of life but energy can be in objects not just life.

7 0
2 years ago
A client with newly diagnosed multiple myeloma asks, "how long do you think i have to live?" what is the most appropriate respon
AleksandrR [38]
<span>The most appropriate response would be for the nurse to ask the patient about their current concerns. This allows for the patient to actually elucidate what he or she is feeling at the time and does not hamstring the provider into actually giving a set length of time that they feel the patient has left to live, which can vary greatly from person to person.</span>
6 0
2 years ago
Other questions:
  • A testable hypothesis could be formed from which question
    15·2 answers
  • Which of the following equations represents the right chemical process that occurs in photosynthesis A.six molecules of oxygen s
    8·2 answers
  • Factors that control populations that come from outside the population are known as
    6·2 answers
  • What are the three lines of fossil evidence that point to an early origin of life on earth and how do they tell us when life aro
    9·1 answer
  • What would be the correct code for cgg tcg agt gat to use in transcription?
    10·1 answer
  • Which number is written using standard scientific notation
    10·1 answer
  • What are two ways bacteria and protists can be helpful to people?
    13·1 answer
  • What is the controversy around stem cells?
    11·2 answers
  • A client who has ovarian cancer is to receive intravenous chemotherapy. Before the infusion, the nurse teaches the client how to
    10·1 answer
  • Can someone answer this please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!