I think it is A because birds do help spread around the seeds hope i helped
Answer:
I’m very confused
Explanation:
Could u take a pic of it?
I think the correct answer from the choices listed above is option B. A modification of the leaves into the spine in a cactus plant can be seen The spines are modified leaves. It helps defend the plant and also reduce the surface area which helps limit loss of water.
Isopropyl alcohol causes the DNA to precipitate. When DNA is emerged in the solution, when it comes out it will ideally clump together, making it visible. Isopropyl alcohol is a key ingredient when isolating DNA. Ethanol also can be used to achieve this.
The neuromuscular synapse is a chemical synapse between a motoneuron and a muscle cell (muscle fiber). The neuromuscular synapses consist of:
• the pre-synaptic cell-motoneuron that sends signal by releasing the the neurotransmitter from the synaptic vesicles
• synaptic cleft, place where neurotransmitter is released, between motoneuron and muscle fuber
• post-synaptic cell also called endplate -the muscle cell that receives the signal via receptors.
