Explanation

Xylem is one of the two types of transport tissue in vascular plants, the other being phloem.

The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.

Explanation

Answer:

C

Grain temperature is the most important regulated factor  in grain storage. Temperatures below 65 ° C are detrimental to the growth of insects and mold. If ventilation does not cool the grain  in the fall, the temperature of the grain will remain suitable for insect development all year round.

Explanation

Answer:

C

White blood cells (WBC) are  part of the immune system. They help fight infections and protect the body from other foreign bodies. When foreign infectious  organisms attack on our immune system, white blood cells response against them and produced antibodies to fight against these infectious agents called antigens. Low white blood cells make you more susceptible to serious infections. Due to low white blood cells content, antibodies production also drcrease.

Explanation

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.