Answer:
Explanation:
:
D. when the stomata are open, CO2 can get in but water can get out
Explanation:
Stomata are openings in leaf epidermis that are small they permit the entry of carbon dioxide and also allow the exit of water vapour.
Opening and closing of stomata is regulated according to physiological needs of the leaf.
Carbondioxide that is diffuses into the leave is used for photosynthesis.
Plant regulates water loss from the stomata. during the hot and cold weather water is conserves to maintain a cool environment in plant this is done by closing of stomata.
Answer:
980,100
Explanation:
let the recessive condition (aa) be represented as q² which is the genotypic frequency = 100/1,000,000 = 0.0001
allelic frequency of a = q = √q² = √0.0001 = 0.01. thus q = 0.01
From the formula p + q = 1 where p is the allelic frequency of A.
since q = 0.01
p = 1 - 0.01 = 0.99. The allelic frequency of A (p) = 0.99
p² = 0.99² = 0.9801. Genotypic frequency of AA= 0.9801
= 0.9801 x 1,000,000 = 980,100 individuals with AA (homozygous normal)
For 2pq genotypic frequency for hetrozygous (Aa).
Using the formula p² + 2pq + q² = 1. Since p² = 0.9801 and q² = 0.0001
2pq = 1 - (p² + q²)
= 1 - (0.9801 + 0.0001)
= 1 - (0.9802)
= 0.0198 = 0.0198 x 1,000,000 = 19,800 individuals with Aa
Anyone with Schizophrenia in his or her family history would develop Schizophrenia
Answer:
A. It contains fewer volatile gases.
Explanation:
Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.
The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.
What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.
The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.
The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.
Collateral ligaments are <span>two strap-like ligaments that act to stabilize the hinge motion of the knee, preventing any lateral or medial movement. It is the structure that connects the knee joint at both sides and prevents its dislocation. There are two types: Tibial (medial) collateral ligament and Fibular (lateral) collateral ligament.</span>
