Answer:
Answer is below.
Explanation:
Photosynthesis is a process that involves three main actors (or ingredients); sunlight, water, carbon dioxide.
Statistics has it that there was no sunlight all through the day.
- Let's check then if there was availability of water and the gas carbon dioxide.
There was rainfall all day
- This means that some photosynthetic activity would take place.
What about the gas that plants breathe in?
- There is always substantial amount of CO₂ in the atmosphere.
A SECOND WAY TO LOOK AT IT IS:
by checking the two stages of photosynthesis.
- In the first stage, sunlight is the main actor. Sunlight is trapped and stored as energy in the chloroplasts of green plants.
- In the second stage, CO₂ is the main actor. With CO₂, the chemical compound - from the first stage - ATP is used to produce sugar and organic compounds which are the food of/for green plants.
Answer: B. on the surfaces of organs, on the walls of cavities, on the outer surface of the body, and in glands of the body.
Explanation:
The epithelial tissues are the tissues that are present throughout the parts of the body. They form the covering of the body surfaces. It helps in lining the body cavities and organs. It forms the major tissues of the glands.
These tissues are important as they perform diversity of functions in the body. Such as protection, absorption, secretion, filtration, excretion, sensory reception and diffusion.
"Biological diversity<span>" means the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part: this includes diversity within species, between species and of ecosystems.</span>
IPSPs are the result of:
a. decreasing membrane conductance to sodium
b. decreasing membrane conductance to potassium
c. inhibitory neurotransmitter entering the postsynaptic cell
d. neurotransmitter binding to ligand-gated ion channels that are chloride selective
Answer:
d. neurotransmitter binding to ligand-gated ion channels that are chloride selective
Explanation:
IPSP refers to inhibitory postsynaptic potential (IPSP). It occurs when the neurotransmitters released from the axon terminals of the presynaptic neurons bind to and open the chloride ion channels. This allows the entry of chloride ions into the neuron making the inside of the membrane even more negative. This does not allow firing of the action potential. The postsynaptic neuron is said to be hyperpolarized. Therefore, IPSP results from hyperpolarization of postsynaptic neurons by the opening of ion channels such as chloride channels.
Answer: The answer is C: Axons make up a majority of the matter in a nerve.
Explanation:
Nerves are cells of the brain and nervous system called Neurons. They make up the neurons and transmit messages from one part of the body to another.
Axons are long projections of a neuron which conduct electrical impulses known as action potential away from the nerve cell body.
Axons do not make up majority of the matter in a nerve because the length of axon branches are different from one neuron to another. They differ in length from about 0.1 micrometers to 2meters and many neurons do not have axons.
