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
ivann1987 [24]
3 years ago
15

What is Portal System?

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

Answer:

d. It is where an artery breaks into two sets of capillaries before returning to the heart.

Explanation:

A Portal System is where an artery breaks into two sets of capillaries before returning to the heart.

Mekhanik [1.2K]3 years ago
5 0
D I believe is the answer sorry if it’s not
You might be interested in
47. Find the mismatched pair: A)Facilitated diffusion Extrusion of ions or small molecule with expense of Ar B) Uniport-A single
andrew-mc [135]

Answer:

Option (A).

Explanation:

Facilitated diffusion may be defined as the process of  movement of the particles from the region of higher concentration towards the region of lower concentration with the help of specific integral transmembrane protein.

Facilitated diffusion is a type of passive diffusion and solute particle down the concentration gradient. So this process doesn't require an ATP or any other energy source.

Thus, the mismatched pair is option (A).

4 0
3 years ago
Grasses → mice → cat → coyote As matter and energy move from grasses to coyotes the amount of available energy
Gnesinka [82]
The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the  pyramid of food chain but since there's no answer for that, C would be the most suitable
3 0
4 years ago
Read 2 more answers
A few students want to live healthier lifestyles. They decide to use one of the following vegetable oils for cooking.
Novosadov [1.4K]
Coconut oil just did this
7 0
3 years ago
Read 2 more answers
Weathering causes rocks to break down and produce _____. igneous rock sediment magma lava
inna [77]

Sediment is the answer from the knowledge i have and from what i found

4 0
4 years ago
Read 2 more answers
Identify the best resource for someone who is mildly depressed.
Nuetrik [128]
You could be depressed from a lot of different things, from losing your job to someone passing away
3 0
4 years ago
Other questions:
  • To protect biodiversity worldwide, many conservationists suggest that at least 10 percent of Earth's land be set aside as protec
    6·1 answer
  • What gases make up our atmosphere and their percentages??
    10·1 answer
  • What are 2<br> factors that prevents joints from rubbing and wearing down your bones
    13·2 answers
  • In photosynthesis, chlorophyll functions in changing
    13·2 answers
  • During interphase, the DNA in the nucleus of the cell is thin and threadlike and called _____.
    5·2 answers
  • The food web shows a controlled ecosystem. The relationship between the fox and the rabbit is a ____ relationship. If the number
    9·2 answers
  • What is an aminoacid​
    5·1 answer
  • Write a list of living and nonliving things that are in your neighborhood
    10·1 answer
  • Plant roots can prevent erosion<br> True or False
    8·2 answers
  • IM GIVING 30 POINTS TO WHOEVER ANSWERS THESE
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!