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
aksik [14]
4 years ago
5

The transport of substances across a cell membrane with the aid of a carrier molecule and the expenditure of energy is

Biology
1 answer:
sergiy2304 [10]4 years ago
6 0
Passive diffusion. This is a process that does not require energy & usually follows a concentration gradient for smaller substances.

Hope this helps!
You might be interested in
Which kind of compound increases the hydrogen ion concentration in a solution?
cupoosta [38]
Hi,
I think the answer you are looking for is “acid compound”.

I hope this helps. If you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.
3 0
3 years ago
Which statement describes how pioneer species and climax communities are different?
Lorico [155]

Answer: D). Primary species have large numbers of offsprings, and climax communities contain species that have small numbers of offsprings.

An ecological succession is a process of gradual changes occurs in a biological community with respect to changes in the non-living abiotic factors  (water, air and sunlight) and with respect to time until the ecosystem attains stability. Primary or pioneer species are the species which invade the previously barren and primitive landmass for their survival. These species make the environment suitable for the growth of other species. These grow and develop in the initial stages of succession. These species are simple organisms which reproduce asexually and produces large number of offsprings. Examples are lichen and moss. Lichen grows on the surface of rocks and acids released by them causes withering of rocks into soil which facilitate the growth of mosses and other plants. Climax community develops in an ecosystem after replacing many previously inhabiting species. Climax community develops in the end of the ecological succession. It contains species which are highly complex and uses sexual reproduction for the production of offsprings which are less in number as compared to those produced by pioneer species by asexual reproduction.  

8 0
3 years ago
Read 2 more answers
Which of the following is an example of parasitism
Len [333]

Answer:

A parasitic relationship is one in which one organism, the parasite, lives off of another organism, the host, harming it and possibly causing death. The parasite lives on or in the body of the host. A few examples of parasites are tapeworms, fleas, and barnacles. The fleas, in turn, get food and a warm home.

3 0
3 years ago
The class of disorders marked by extreme and inflexible characteristics that often cause impaired social and occupational functi
Inessa05 [86]

Answer:

Personality.

Explanation:

The mental disorders affects the thinking ability of the individual. The mental disorder individual shows abnormal behavior in the society and might feel anxiety or feel awkward among the people.

The personality disorder is a type of the mental disorder in which the individual have unhealthy thinking level. This disorder affects the social status and his personality in the society. The occupational functioning become improper and requires the proper medical treatment.

Thus, the answer is personality.  

4 0
3 years ago
What is the structure of rRNA
poizon [28]
The ribosomal RNAs complex with proteins to form two subunits, the large subunit (LSU) and small subunit (SSU). During translation, mRNA is sandwiched between the small and large subunits, and the ribosome catalyzes the formation of a peptide bond between the two amino acids that are contained in the rRNA.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find area of sector:<br> centeral angle=60<br> r=7<br> PLZ HELP ME I WILL GIVE BRAINLIEST!!
    8·2 answers
  • Which kingdom would a single celled organism with a nucleus, cell wall and chloroplast belong?
    9·1 answer
  • What is the dependent variable in this experiment
    15·1 answer
  • How do slide presentations help keep the presenter "on message"?
    13·2 answers
  • In order for animals to be domesticated, they need to have a flexible diet.
    10·1 answer
  • Successful resolution of the integrity versus despair stage of adulthood should result in ___________.
    13·1 answer
  • The Speckled Sussex chicken breed is a type of chicken that was originally breed in sussex county, England over 100 years ago. W
    15·1 answer
  • What is the function for chromatin?
    15·1 answer
  • PLEASE HELP!!! DUE TODAY IN 10 MINS!!! (dont mind the right side-)
    5·1 answer
  • Do all fossils contain intact dna that can be sequenced.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!