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
grigory [225]
3 years ago
11

How come plant cells have a cell wall but our cells don't?

Biology
1 answer:
Sophie [7]3 years ago
6 0
Unlike humans, plants don't contain bones. Because of this, they have a cell wall to provide structure and protect their organs.
You might be interested in
It is winter, and you want to know where it might snow today. Look at the predicted temperature for each state. Then identify th
BartSMP [9]

Answer:

C-North Dakota and Michigan

Explanation:

It has to be 32’F or less to snow.

6 0
2 years ago
. Which statement accurately describes the energy needs for photosynthesis and cellular respiration?
IrinaVladis [17]
What are the statements?
5 0
2 years ago
What’s the difference between a hypothesis and a theory?
Wewaii [24]
A hypothesis is a suggested explanation for an observable problem OR a reasoned prediction of a possible causal correlation among multiple problems. A theory is a tested and well substantiated and unifying explanation for a set of verified and proven factors.
4 0
3 years ago
g protein-activated inwardly rectifying potassium channels mediate depotentiation of long-term potentiation
Svetlanka [38]

Long-term potentiation (LTP) is considered a cellular correlate of learning and memory. The presence of G protein-activated inwardly rectifying K(+) (GIRK) channels near excitatory synapses on dendritic spines suggests their possible involvement in synaptic plasticity. However, whether activity-dependent regulation of  channels affects excitatory synaptic plasticity is unknown. In a companion article we have reported activity-dependent regulation of GIRK channel density in cultured hippocampal neurons that requires activity oF receptors (NMDAR) and protein phosphatase-1 (PP1) and takes place within 15 min. In this study, we performed whole-cell recordings of cultured hippocampal neurons and found that NMDAR activation increases basal GIRK current and GIRK channel activation mediated by adenosine A(1) receptors, but not GABA(B) receptors. Given the similar involvement of NMDARs, adenosine  receptors, and PP1 in depotentiation of LTP caused by low-frequency stimulation that immediately follows LTP-inducing high-frequency stimulation, we wondered whether NMDAR-induced increase in GIRK channel surface density and current may contribute to the molecular mechanisms underlying this specific depotentiation. Remarkably, GIRK2 null mutation or GIRK channel blockade abolishes depotentiation of LTP, demonstrating that GIRK channels are critical for depotentiation, one form of excitatory synaptic plasticity.

Learn more about receptors here:

brainly.com/question/11985070

#SPJ4

8 0
1 year ago
C)
dybincka [34]

Answer:

Plants and trees are the primary sources of food for a food chain or a food web. If the population of the primary producers reduces than it affects the whole food web. If the deciduous trees are destroyed due to a fire, there will be less food available for the primary predators. As a result, competition will begin between them and their population will decline. Due to this, the population of other organisms which fed on the primary consumers will also decline.

4 0
3 years ago
Other questions:
  • Give a basic definition of evolution. <br><br> A paragraph long please :)
    7·1 answer
  • The overarching goal of the carbon mitigation initiative is to
    13·1 answer
  • What is the primary source of freshwater for a river stream
    15·1 answer
  • I need answers for the Biology chapter 4 of photosynthesis and Cellular Respiration
    10·1 answer
  • 16. ) A ___ is the structure that contains the DNA of the cell.
    13·2 answers
  • What role do clouds play in regulating earths energy balance?
    13·1 answer
  • What happens when a thirsty person drinks something sweet to try to quench their<br> thirst?
    15·1 answer
  • Which of the following is equivalent
    12·1 answer
  • Who was one of the first people to identify and see cork cells?
    7·1 answer
  • Which of the following is predicted to be an impact of global warming?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!