Answer:
Answer:
1.
a)dd
b) dd
c) 0%
2.
a) 25%
b) 75%
c) 25%
3.
a) 03
b) 0
c) tt
4.
a) FF x ff OR FF x Ff OR FF x FF
b) Because all the children have freckles
Food chain is a hierarchical series of organism each dependent on the next as a source of food while a food web is a system of interlocking and interpendent food chains. on the other hand, energy pyramid as a graphical model of energy flow in a community.
Answer:
a) i) Xylem
ii) Upper epidermis
iii) Stoma
iv) Chroloplast
v) Palisade cell layer
b) By a waxy layer on the cuticle of the leaf
Explanation:
The plant's leaves have a large surface area that is capable of absorbing sunlight. The plant's waxy layer in the surface of the leaf protects it from the loss of water, as well as of diseases caused by the entry of microorganisms. The palisade cell's surface is a single layer of cells underneath the upper epidermis that is adapted to absorb light energy.
The waxy layer is a primary physical barrier composed of insoluble polymers and lipids whose function is to protect the leaves against the entry of harmful organisms including virus, bacteria and fungus. Moreover, the plant's waxy cuticle is also a barrier that prevents the loss of water and solutes.
Answer:
Maple beeches and Birches
Answer: The RNA strand is AUAAUCGGUCGCG
Explanation: The nucleotide sequence of RNA has four bases namely: Adenine A, Uracil U, Guanine G and Cytosine C. DNA nucleotide sequence has four bases namely: Adenine A, Thymine T, Cytosine C and Guanine G. In RNA, A pairs with U, and C pairs with G. In DNA, A pairs with T and C pairs with G.
