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
Leto [7]
2 years ago
5

I need help. Due today.

Biology
1 answer:
Brums [2.3K]2 years ago
6 0

Answer:

D) common ancestry among vertebrate species

You might be interested in
The ability to roll one's tongue (turn up the sides) is controlled by a dominant allele. If two heterozygous parents have a chil
Vanyuwa [196]

the noise that you make is whistling

7 0
3 years ago
What membrane activities requires energy from atp hydrolysis?
NikAS [45]

Answer:

active transport, like Na + ions leaving the cell

Explanation:

The active transport requires an energy expenditure to transport the molecule from one side of the membrane to the other, but the active transport is the only one that can transport molecules against a concentration gradient, just as the diffusion facilitated the active transport is limited by the number of transport proteins present.

Two major categories of active, primary and secondary transport are of interest. The primary active transport uses energy (generally obtained from ATP hydrolysis), at the level of the same membrane protein producing a conformational change that results in the transport of a molecule through the protein.

The best known example is the Na + / K + pump. The Na + / K + pump performs a countertransport ("antyport") transports K + into the cell and Na + outside it, at the same time, spending on the ATP process.

The secondary active transport uses energy to establish a gradient across the cell membrane, and then uses that gradient to transport a molecule of interest against its concentration gradient.

8 0
3 years ago
7. After grazing on grass, a rabbit is eaten by a snake. The snake also eats a mouse later that day. Which of the following stat
bekas [8.4K]

A. The mouse and the rabbit are in separate food chains but the same food web.

4 0
2 years ago
 “The outer energy levels are full, but that doesn’t mean the inner ones are,” says a friend. How would you respond?
Anton [14]

He is WRONG

Explanation:

Any atom at the ground state has its orbital levels fill from the bottom (close to the nucleus) – up. The inner orbitals are of lower energy state and fill first because the atoms ‘likes’ to exist in the low energy and more stable state. Only when the atom is in an excited state do some of the electrons in the lower orbital levels shift to higher unfilled orbitals.

3 0
3 years ago
Which two points have the same elevation?
MrRa [10]

Answer:

(A.) points A and B

Hope this helps!

4 0
3 years ago
Other questions:
  • What id the definition of a cell
    15·1 answer
  • Aerobic respiration begins to function when ______________ or ______________ are oxidized.
    8·1 answer
  • Most auditory nerve fibers carry messages _______ hair cells.
    14·2 answers
  • What is the function of a mitochondrion?
    13·1 answer
  • Choose the term that best matches the description given. Worms that are often parasites of the digestive system
    12·1 answer
  • When using data from population genetics research: the sample must be statistically large the sample must be statistically small
    9·1 answer
  • Weird questions but is this true has anyone tried.
    5·1 answer
  • Select the star life cycle that is most accurate
    6·1 answer
  • What is the structure inside of the nucleus called and the name of the phase of the
    9·1 answer
  • How does photosynthesis relate to the formation of dna?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!