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
Maksim231197 [3]
3 years ago
10

The __________ of the heart rests on the diaphragm, and from its __________, the great vessels emerge (hint: not chambers)

Biology
1 answer:
Sergeu [11.5K]3 years ago
4 0
The answer is apex and base. To simplify, the apex of the heart rests on the diaphragm and from its base, the great vessels emerge. In addition, blood vessels that are nearer to the pumping heart and must enlarge to endure pressure variations are named elastic arteries and foramen ovale permits blood to pass from the right to the left atrium, therefore avoiding to pass the fetal lungs. 
You might be interested in
The law of conservation of matter applies to physical changes as well as to chemical changes. If this is true, then explain why
Elza [17]
The law states that matter is conserved. It is not randomly llost or gained, but transformed.

This holds true because when a glass of water is left out over night, the water evaporates. The water doesn't magically disappear. It is just transformed into water vapor.
6 0
3 years ago
According to the hardy-weinberg law, if the frequency of the allele a in a population is 0.4, then the frequency of the genotype
Nonamiya [84]
The aa genotype should 
a*a = 0.4 * 0.4 = 0.16
4 0
3 years ago
The presence of an appropriate enzyme affects only the __________.
iVinArrow [24]

Answer;

-The rate of the reaction;

The presence of an enzyme affects only the rate of the reaction.

Explanation;

-Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

-Additionally, the rate of a chemical reaction increases as the substrate concentration increases. Enzymes can greatly speed up the rate of a reaction. However, enzymes become saturated when the substrate concentration is high.


4 0
3 years ago
Describe the organization of skeletal muscle tissue from cell to whole muscle to groups of muscles
Lelu [443]
<span>characteristics of skeletal muscle:</span><span>
contains nerve endings; is a voluntary muscle; striped/striated, multi-nucleated (has many nuclei); attached to the bones of the skeleton</span>
5 0
3 years ago
As biodiversity increases in an ecosystem, the ecosystem?
BabaBlast [244]

Biological magnification, or biomagnification, occurs when pollutants taken up by organisms at the base of the food chain reach high concentrations in the bodies of animals at the top of the food chain. Effects of biomagnification vary widely depending on the pollutant, organism and ecosystem in question.

4 0
3 years ago
Other questions:
  • What would happen if a person's body temperature dropped too low or got too high?
    11·2 answers
  • While snorkeling you come across an organism that appears to be a mollusk. In an effort to identify the type of mollusk you make
    13·1 answer
  • The ___________ gametophyte stage produces gametes (eggs and sperm) by __________. see section 28.3 (page 569) . view available
    14·1 answer
  • An organism like a green plant that can make its own food is called
    15·1 answer
  • Match each type of cell junction with its description.
    9·1 answer
  • Which of the following observations best supports the claim that mitochondria evolved
    6·1 answer
  • A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.
    7·1 answer
  • Can someone help me create an island with how it was made and 5 landmarks that has a geological back story to them.
    12·1 answer
  • A(n) ____ is an approximate representation or simulation of a system.
    14·1 answer
  • Mercury has the largest eccentricity of any of the eight planets. What is Mercury’s orbital eccentricity?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!