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
Illusion [34]
3 years ago
14

NEED HELP ASAP!! Please no links!!

Biology
2 answers:
Dmitriy789 [7]3 years ago
5 0

Answer:b) The air at high altitudes are less dense, so its harder to breathe.

Explanation:

AS altitude increases, the air pressure drops. This reduces the amount of gas molecules in the air so the air becomes less dense compared to air closer to sea level.

andrew-mc [135]3 years ago
4 0
B because it would be harder to breathe
You might be interested in
Energy released in mitochondria is stored in a substance called ___________.
WINSTONCH [101]

In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH. NADH is then used by enzymes embedded in the mitochondrial inner membrane to generate adenosine triphosphate (ATP). In ATP the energy is stored in the form of chemical bonds.

7 0
3 years ago
In the theory of plate tectonics, how should you picture the earth?
lorasvet [3.4K]

Answer:

C

Explanation:

As shown in the picture I attached to my answer, we can see all of the tectonic plates, which make up the lithosphere. The pieces do move very slightly every year.

5 0
1 year ago
What is the genotype and color of a homozygous recessive pumpkin if white is recessive to orange?
Anettt [7]

gg is genotype and phenotype white

if u have any doubts or more questions feel free to contact

5 0
3 years ago
A disease called phenylketonuria causes mental problems, reduces skin pigmentation, and also affects the coloration of urine. Wh
swat32

Answer:

Pleiotropy

Explanation:

Pleiotropy is a genetic condition in which a single gene conditions the expression of multiple phenotype. There are different types of pleiotropy depending on the underlining mechanism

  • <em>gene pleiotropy</em>
  • <em>developmental pleiotropy</em>
  • <em>selectional pleiotropy</em>
  • <em>antagonistic pleiotropy </em>

<em>Phenylketonuria is a disease characterized by increased level of amino acid phenylalanine in the blood. It caused by mutation to the gene responsible for breaking down phenylalanine in the blood. Elevated level of phenylalanine causes other issues such as mental problems, urine coloration and reduction in skin pigmentation. This is a clear case of pleiotropy.</em>

7 0
3 years ago
What is the relationship between choanoflagellates and animals?
cupoosta [38]

Answer: It's the cells, just without the chloralplast , but animals don't need that because only plant cells have chloralplast. So animals only get theses type of cells if they a herbivores,or omnivores because they eat plants and it helps them survive that way

Explanation:

8 0
3 years ago
Other questions:
  • When alissa finally reeled in the catfish, we were speechless. it looked big enough to eat alissa’s dog. the fish was __________
    6·1 answer
  • Throughout most of human history, human population size _____.
    7·1 answer
  • Glucose is a a)cane sugar b)grape sugar c)malt sugar d)triose sugar
    7·2 answers
  • How does crossing over affect evolution?
    9·1 answer
  • When barium hydroxide, Ba(OH)2, mixes with water, the solution turns cold.
    10·1 answer
  • I need help with this question
    8·1 answer
  • 2. If scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to?
    13·1 answer
  • Oxygen relights a glowing splint. What does this tell you about the chemical properties of oxygen, compared to nitrogen?
    6·2 answers
  • Photosynthesis and Cellular Respiration
    12·1 answer
  • 3. How do you know this? (Quote some results to support your conclusion.)​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!